The control panel specifications require a cubical panel made of 16 gauge sheet metal with hinged covers to house the control components above a base frame. Rubber pads will isolate the base frame from the panel supports. A manual bypass switch and earth stud shall be provided. The panel must achieve automatic control of an engine-alternator set through a microprocessor-based controller in auto mode, including starting the engine on mains failure and stopping it on restoration based on voltage and timing settings. Alarms and operational parameters shall be transmitted to a remote monitoring station via GSM modem using GPRS or SMS.
The GRW series generators are designed for rental businesses and temporary power supply applications. They range in power from 20-560 kVA and feature EU Stage 3A compliant engines, brushless alternators, and customizable control panels. The generators are durable, efficient, low noise and easy to maintain, making them suitable for rental fleets.
This document provides information on the M/VTM Series Servo Drive AB125A200. It is a brushless DC motor amplifier that can deliver up to 125A of peak current and 80A of continuous current. It has various operating modes including current, velocity, and duty cycle. It supports feedback from Hall sensors, encoders, and tachometers. Hardware settings like switches and potentiometers allow adjusting parameters like current limits and loop gains.
This document provides installation and commissioning instructions for an Integrated Power Management Unit (IPMU). The IPMU integrates a switch mode power supply and power management unit to provide power from the mains or generator to critical loads like a battery bank and BTS equipment. The summary includes:
1. The IPMU receives power from the mains or generator, regulates the voltage with transformers, and provides power to rectifier modules and battery bank.
2. Commissioning involves checking voltages and connections between the IPMU, generator, battery bank, and critical loads. Alarms are also connected from the IPMU and switch mode power supply to alert operators.
3. Detailed wiring diagrams and instructions are provided
This servo drive is designed to drive brushless DC motors at high power levels. It can operate in various modes including current, velocity, and duty cycle modes. It has protections against overheating, overcurrent and other faults. It is compliant with various safety standards and has adjustable parameters, feedback options and I/O for control and monitoring.
This document provides installation and setup instructions for the ACTURA 48 701z power system. It includes descriptions of the power system components, sub-assemblies, and system controller. Installation instructions are provided for unpacking, mounting, making AC and DC connections, installing batteries, and setting up communication. Technical specifications for the power system and its rectifier modules are also included in an annex.
The Analog Servo Drive 10A8 is a PWM servo amplifier designed to drive brush DC motors with a peak current of 10A and continuous current of 6A. It operates from 20-80VDC and has full protection against overcurrent, overheating and short circuits. It can be used with digital controllers or standalone and interfaces with ±10V analog command signals.
The AZXB8A8 analog servo drive is designed to drive brushless and brushed DC motors at high switching frequencies between -40°C and 85°C. It has a peak current of 8A, continuous current of 4A, and operates on 10-80VDC. The drive provides hardware protections and interfaces with digital controllers that have ±10V analog outputs to control motor speed and current.
The Emergency Locator Transmitter (ELT) is a battery-powered transmitter installed in aircraft to help locate the aircraft if it crashes. The ELT emits a signal on two emergency frequencies that can be detected by search and rescue teams. It is designed to automatically activate upon crash impact and transmit continuously for 48 hours. Proper installation, periodic testing, and battery replacement are required to ensure the ELT functions properly in an emergency.
The GRW series generators are designed for rental businesses and temporary power supply applications. They range in power from 20-560 kVA and feature EU Stage 3A compliant engines, brushless alternators, and customizable control panels. The generators are durable, efficient, low noise and easy to maintain, making them suitable for rental fleets.
This document provides information on the M/VTM Series Servo Drive AB125A200. It is a brushless DC motor amplifier that can deliver up to 125A of peak current and 80A of continuous current. It has various operating modes including current, velocity, and duty cycle. It supports feedback from Hall sensors, encoders, and tachometers. Hardware settings like switches and potentiometers allow adjusting parameters like current limits and loop gains.
This document provides installation and commissioning instructions for an Integrated Power Management Unit (IPMU). The IPMU integrates a switch mode power supply and power management unit to provide power from the mains or generator to critical loads like a battery bank and BTS equipment. The summary includes:
1. The IPMU receives power from the mains or generator, regulates the voltage with transformers, and provides power to rectifier modules and battery bank.
2. Commissioning involves checking voltages and connections between the IPMU, generator, battery bank, and critical loads. Alarms are also connected from the IPMU and switch mode power supply to alert operators.
3. Detailed wiring diagrams and instructions are provided
This servo drive is designed to drive brushless DC motors at high power levels. It can operate in various modes including current, velocity, and duty cycle modes. It has protections against overheating, overcurrent and other faults. It is compliant with various safety standards and has adjustable parameters, feedback options and I/O for control and monitoring.
This document provides installation and setup instructions for the ACTURA 48 701z power system. It includes descriptions of the power system components, sub-assemblies, and system controller. Installation instructions are provided for unpacking, mounting, making AC and DC connections, installing batteries, and setting up communication. Technical specifications for the power system and its rectifier modules are also included in an annex.
The Analog Servo Drive 10A8 is a PWM servo amplifier designed to drive brush DC motors with a peak current of 10A and continuous current of 6A. It operates from 20-80VDC and has full protection against overcurrent, overheating and short circuits. It can be used with digital controllers or standalone and interfaces with ±10V analog command signals.
The AZXB8A8 analog servo drive is designed to drive brushless and brushed DC motors at high switching frequencies between -40°C and 85°C. It has a peak current of 8A, continuous current of 4A, and operates on 10-80VDC. The drive provides hardware protections and interfaces with digital controllers that have ±10V analog outputs to control motor speed and current.
The Emergency Locator Transmitter (ELT) is a battery-powered transmitter installed in aircraft to help locate the aircraft if it crashes. The ELT emits a signal on two emergency frequencies that can be detected by search and rescue teams. It is designed to automatically activate upon crash impact and transmit continuously for 48 hours. Proper installation, periodic testing, and battery replacement are required to ensure the ELT functions properly in an emergency.
The AZXBH8A8 is an analog servo drive designed to drive brushless and brushed DC motors from 10-80VDC. It provides overcurrent, overvoltage, and thermal protection. The drive supports hall sensor or tachometer feedback for velocity control and operates in current, duty cycle, or velocity modes. It is designed for wide temperature ranges from -40°C to 85°C.
This document provides specifications for the M/VTM Series Servo Drive AVB125A200. It is designed to drive brushless DC motors for vehicle applications with a peak current of 125A and continuous current of 80A. It accepts analog and potentiometer command inputs and feedback from Hall sensors, encoders, or tachometers. Modes of operation include current, voltage, velocity control and more which are selected using onboard DIP switches and potentiometers.
This document provides information on the M/VTM Series Servo Drive AB100C200. It summarizes the drive's key specifications including its power range, features, modes of operation, command sources, feedback supported, and agency approvals. The document also includes block diagrams, pinout diagrams, switch settings, and other technical details.
The document provides information on the VR-8 single phase voltage regulator from Farady Electric. It describes the regulator as a tap-changing autotransformer that can regulate distribution line voltages from 10% higher to 10% lower in 32 steps. It lists available voltage ratings from 2400V to 34500V for 50Hz and 60Hz systems. It also outlines standard features such as an SEL control box, tap changer motor, potential indicator, nameplates, and mounting provisions. Optional accessories and two controller box options - the SEL-2431 and ICMI UVR-1 - are also summarized.
The document provides specifications for the Analog Servo Drive AZXBDC25A8, which is designed to drive brushless and brushed DC motors. It can deliver up to 25A of peak current and 12.5A of continuous current from a 10-80V DC power supply. The drive has overcurrent, overvoltage, and thermal protection. It interfaces with digital controllers using PWM and direction inputs and includes status and current monitoring outputs.
The AZXBE6C20 analog servo drive is designed to drive brushless DC motors at high switching frequencies. It is fully protected against over-voltage, over-current and other faults. The drive can utilize encoder or tachometer feedback for velocity control and interfaces with digital controllers that have analog ±10V outputs. It is designed for wide temperature ranges and direct integration into PCBs.
The document provides information about the E1100 Servo Controller Series from NTI AG / LinMot. The E1100 series includes various servo controller models for controlling 1, 2, or 3 phase linear or rotary motors. The controllers offer integrated digital position control and interfacing to machine controls via digital interfaces like PROFIBUS-DP, DeviceNet, and CANopen. Key features include storing motion sequences and profiles, synchronization to a master encoder, digital and analog inputs/outputs, and flexible connectivity options.
The AZXBH15A8 is a PWM servo drive designed to drive brushless and brushed DC motors at high switching frequencies. It can provide up to 15A of peak current and 7.5A of continuous current from a 10-80VDC power supply. The drive is protected against overvoltage, undervoltage, overcurrent, overheating and other faults. It supports hall sensor or tachometer feedback and operates in various modes including current and velocity control.
The AZBH20A8 analog servo drive is designed to drive brushless and brushed DC motors at high switching frequencies. It can provide up to 20A of peak current and 12A of continuous current from a 10-80VDC power supply. The drive offers various protection features and operation modes, and integrates directly into PCBs for compact designs.
This document summarizes different types of emergency locator transmitters (ELTs) used in aircraft. It describes 5 types of ELTs: Type A or AD are automatic ejectable transmitters; Type F or AF are automatic fixed transmitters installed in aircraft; Type AP are automatic but portable; Type P must be manually activated; and Type W or S are water activated or for survival and will transmit if immersed in water. The document provides details on the features and operation of each ELT type.
The AZXBDC8A8 is a PWM servo drive designed to drive brushless and brushed DC motors. It has a peak current of 8A and continuous current of 4A, and operates from 10-80VDC. The drive provides protection against overvoltage, undervoltage, overcurrent, overheating and short circuits. It is compact in size and designed for direct integration into PCBs.
The document describes an analog servo drive called the BE25A20FAC. It has the following key specifications:
- It can deliver up to 25A of peak current and 12.5A of continuous current from a 30-130V AC power supply.
- It is designed to drive brushless DC motors and features four quadrant regenerative operation, adjustable current limits, and selectable operating modes including current, open loop, and encoder velocity modes.
- It provides motor commutation from hall sensors or an encoder, and supports feedback from halls, encoders, or a tachometer.
- It has adjustable parameters like loop gain, current limit, input gain and offset via onboard potentiometers.
The document discusses variable frequency drives (VFDs) and their operation. It provides specifications for the Delta VFD007L21A model being used. It explains how a VFD works by converting input power to DC then variable voltage/frequency AC to control motor speed. The document outlines exercises to control the VFD, including starting/stopping a motor, changing speeds, and interfacing the VFD with a PLC for a conveyor control project.
Network time sync solutions for traffic controlMohd Amir
The document discusses network time synchronization solutions from Meinberg for traffic control and safety applications. It summarizes several Meinberg products that can keep systems synchronized, including radio clocks, slave clock drivers, wall clocks, LED displays, and NTP time servers. The NTP time servers discussed include the LANTIME M300, M600, and M400 models, which can synchronize networks using various reference time sources and provide accurate time visualization and distribution.
The AZXB15A8 analog servo drive is designed to drive brushless and brushed DC motors. It has a peak current of 15A and continuous current of 7.5A, operates from 10-80VDC, and integrates directly into PCBs. It is protected against overheating, overcurrent, and other faults, and interfaces with digital controllers using a ±10V analog command input.
1) Retrofitting old CNC machines involves replacing the outdated electrical systems, including the control, drives, motors, and wiring, with modern components to improve performance and productivity.
2) Upgrading to a new control system provides benefits like reduced errors, additional machining cycles, improved accuracy and feed rates, and enhanced programming support.
3) Heidenhain offers a complete retrofit solution with controls, motors, drives, encoders, and other components to modernize older machines currently equipped with Heidenhain controls in a cost-effective way.
The Analog Servo Drive BE15A8 is designed to drive brushless DC motors with a peak current of 15A and continuous current of 7.5A. It can operate in various modes such as current, duty cycle, and velocity control. It features adjustable current limits, input gain, and other parameters. The drive provides motor and feedback connections, status indicators, and protection against faults.
This document provides specifications for the RCP2-BA6/BA6U ROBO Cylinder. It includes details on the speed and load capacity which decreases at higher speeds. It also lists the stroke lengths from 500mm to 1000mm and compatible controller options for operating the cylinder. Technical drawings and dimensions are provided for the cylinder housing.
The S60A8 analog servo drive is designed to drive 3-phase brushless motors with sinusoidal current. It requires 2 sinusoidal command signals 120 degrees out of phase to control motor position and torque. The drive interfaces with digital controllers, has overvoltage, overcurrent, and overheating protections, and operates from a single DC power supply. It provides optical isolation between high and low power signals.
The LTC1760 is a dual smart battery system manager that allows simultaneous charging or discharging of two batteries. It implements all elements of a "Smart Battery System Manager" except for composite battery information. The device includes three SMBus interfaces to communicate with the batteries and host, and uses a proprietary PowerPath architecture to extend battery run times up to 10% while reducing charging times up to 50%. It can automatically switch between power sources in less than 10μs.
This document provides an overview and discussion of automatic transfer switches, grounding issues, and installation considerations for standby power systems. It discusses NFPA 110 requirements, grounding terminology and rules, applications of 4-pole switches, fuel system considerations and sizing, generator control functions, transfer switch types, and indoor versus outdoor generator installation options. The key topics covered are the two main grounding rules, uses of 4-pole automatic transfer switches, fuel system design best practices, and NFPA 110 compliance guidelines for emergency power systems.
Century Paper and Board Mills Ltd belongs to the Lakson Group in Pakistan. It produces various coated and uncoated paper and board brands for packaging. Its major clients include tobacco, food, and consumer goods companies. The document discusses technical details of electric motors and their protection devices like electronic motor protection relays using PIC microcontrollers, current transformers, overload protection, and temperature sensors. It also covers motor types like induction motors, their winding structures, and high voltage motors. Other topics include transformer protection, pneumatic systems, control valves, variable frequency drives, and motor starting circuits.
The AZXBH8A8 is an analog servo drive designed to drive brushless and brushed DC motors from 10-80VDC. It provides overcurrent, overvoltage, and thermal protection. The drive supports hall sensor or tachometer feedback for velocity control and operates in current, duty cycle, or velocity modes. It is designed for wide temperature ranges from -40°C to 85°C.
This document provides specifications for the M/VTM Series Servo Drive AVB125A200. It is designed to drive brushless DC motors for vehicle applications with a peak current of 125A and continuous current of 80A. It accepts analog and potentiometer command inputs and feedback from Hall sensors, encoders, or tachometers. Modes of operation include current, voltage, velocity control and more which are selected using onboard DIP switches and potentiometers.
This document provides information on the M/VTM Series Servo Drive AB100C200. It summarizes the drive's key specifications including its power range, features, modes of operation, command sources, feedback supported, and agency approvals. The document also includes block diagrams, pinout diagrams, switch settings, and other technical details.
The document provides information on the VR-8 single phase voltage regulator from Farady Electric. It describes the regulator as a tap-changing autotransformer that can regulate distribution line voltages from 10% higher to 10% lower in 32 steps. It lists available voltage ratings from 2400V to 34500V for 50Hz and 60Hz systems. It also outlines standard features such as an SEL control box, tap changer motor, potential indicator, nameplates, and mounting provisions. Optional accessories and two controller box options - the SEL-2431 and ICMI UVR-1 - are also summarized.
The document provides specifications for the Analog Servo Drive AZXBDC25A8, which is designed to drive brushless and brushed DC motors. It can deliver up to 25A of peak current and 12.5A of continuous current from a 10-80V DC power supply. The drive has overcurrent, overvoltage, and thermal protection. It interfaces with digital controllers using PWM and direction inputs and includes status and current monitoring outputs.
The AZXBE6C20 analog servo drive is designed to drive brushless DC motors at high switching frequencies. It is fully protected against over-voltage, over-current and other faults. The drive can utilize encoder or tachometer feedback for velocity control and interfaces with digital controllers that have analog ±10V outputs. It is designed for wide temperature ranges and direct integration into PCBs.
The document provides information about the E1100 Servo Controller Series from NTI AG / LinMot. The E1100 series includes various servo controller models for controlling 1, 2, or 3 phase linear or rotary motors. The controllers offer integrated digital position control and interfacing to machine controls via digital interfaces like PROFIBUS-DP, DeviceNet, and CANopen. Key features include storing motion sequences and profiles, synchronization to a master encoder, digital and analog inputs/outputs, and flexible connectivity options.
The AZXBH15A8 is a PWM servo drive designed to drive brushless and brushed DC motors at high switching frequencies. It can provide up to 15A of peak current and 7.5A of continuous current from a 10-80VDC power supply. The drive is protected against overvoltage, undervoltage, overcurrent, overheating and other faults. It supports hall sensor or tachometer feedback and operates in various modes including current and velocity control.
The AZBH20A8 analog servo drive is designed to drive brushless and brushed DC motors at high switching frequencies. It can provide up to 20A of peak current and 12A of continuous current from a 10-80VDC power supply. The drive offers various protection features and operation modes, and integrates directly into PCBs for compact designs.
This document summarizes different types of emergency locator transmitters (ELTs) used in aircraft. It describes 5 types of ELTs: Type A or AD are automatic ejectable transmitters; Type F or AF are automatic fixed transmitters installed in aircraft; Type AP are automatic but portable; Type P must be manually activated; and Type W or S are water activated or for survival and will transmit if immersed in water. The document provides details on the features and operation of each ELT type.
The AZXBDC8A8 is a PWM servo drive designed to drive brushless and brushed DC motors. It has a peak current of 8A and continuous current of 4A, and operates from 10-80VDC. The drive provides protection against overvoltage, undervoltage, overcurrent, overheating and short circuits. It is compact in size and designed for direct integration into PCBs.
The document describes an analog servo drive called the BE25A20FAC. It has the following key specifications:
- It can deliver up to 25A of peak current and 12.5A of continuous current from a 30-130V AC power supply.
- It is designed to drive brushless DC motors and features four quadrant regenerative operation, adjustable current limits, and selectable operating modes including current, open loop, and encoder velocity modes.
- It provides motor commutation from hall sensors or an encoder, and supports feedback from halls, encoders, or a tachometer.
- It has adjustable parameters like loop gain, current limit, input gain and offset via onboard potentiometers.
The document discusses variable frequency drives (VFDs) and their operation. It provides specifications for the Delta VFD007L21A model being used. It explains how a VFD works by converting input power to DC then variable voltage/frequency AC to control motor speed. The document outlines exercises to control the VFD, including starting/stopping a motor, changing speeds, and interfacing the VFD with a PLC for a conveyor control project.
Network time sync solutions for traffic controlMohd Amir
The document discusses network time synchronization solutions from Meinberg for traffic control and safety applications. It summarizes several Meinberg products that can keep systems synchronized, including radio clocks, slave clock drivers, wall clocks, LED displays, and NTP time servers. The NTP time servers discussed include the LANTIME M300, M600, and M400 models, which can synchronize networks using various reference time sources and provide accurate time visualization and distribution.
The AZXB15A8 analog servo drive is designed to drive brushless and brushed DC motors. It has a peak current of 15A and continuous current of 7.5A, operates from 10-80VDC, and integrates directly into PCBs. It is protected against overheating, overcurrent, and other faults, and interfaces with digital controllers using a ±10V analog command input.
1) Retrofitting old CNC machines involves replacing the outdated electrical systems, including the control, drives, motors, and wiring, with modern components to improve performance and productivity.
2) Upgrading to a new control system provides benefits like reduced errors, additional machining cycles, improved accuracy and feed rates, and enhanced programming support.
3) Heidenhain offers a complete retrofit solution with controls, motors, drives, encoders, and other components to modernize older machines currently equipped with Heidenhain controls in a cost-effective way.
The Analog Servo Drive BE15A8 is designed to drive brushless DC motors with a peak current of 15A and continuous current of 7.5A. It can operate in various modes such as current, duty cycle, and velocity control. It features adjustable current limits, input gain, and other parameters. The drive provides motor and feedback connections, status indicators, and protection against faults.
This document provides specifications for the RCP2-BA6/BA6U ROBO Cylinder. It includes details on the speed and load capacity which decreases at higher speeds. It also lists the stroke lengths from 500mm to 1000mm and compatible controller options for operating the cylinder. Technical drawings and dimensions are provided for the cylinder housing.
The S60A8 analog servo drive is designed to drive 3-phase brushless motors with sinusoidal current. It requires 2 sinusoidal command signals 120 degrees out of phase to control motor position and torque. The drive interfaces with digital controllers, has overvoltage, overcurrent, and overheating protections, and operates from a single DC power supply. It provides optical isolation between high and low power signals.
The LTC1760 is a dual smart battery system manager that allows simultaneous charging or discharging of two batteries. It implements all elements of a "Smart Battery System Manager" except for composite battery information. The device includes three SMBus interfaces to communicate with the batteries and host, and uses a proprietary PowerPath architecture to extend battery run times up to 10% while reducing charging times up to 50%. It can automatically switch between power sources in less than 10μs.
This document provides an overview and discussion of automatic transfer switches, grounding issues, and installation considerations for standby power systems. It discusses NFPA 110 requirements, grounding terminology and rules, applications of 4-pole switches, fuel system considerations and sizing, generator control functions, transfer switch types, and indoor versus outdoor generator installation options. The key topics covered are the two main grounding rules, uses of 4-pole automatic transfer switches, fuel system design best practices, and NFPA 110 compliance guidelines for emergency power systems.
Century Paper and Board Mills Ltd belongs to the Lakson Group in Pakistan. It produces various coated and uncoated paper and board brands for packaging. Its major clients include tobacco, food, and consumer goods companies. The document discusses technical details of electric motors and their protection devices like electronic motor protection relays using PIC microcontrollers, current transformers, overload protection, and temperature sensors. It also covers motor types like induction motors, their winding structures, and high voltage motors. Other topics include transformer protection, pneumatic systems, control valves, variable frequency drives, and motor starting circuits.
The DKG-253 is an electronic governor controller capable of governing engines from 12-24V in isochronous or droop modes. It has adjustable settings for rated speed, idle speed, starting fuel, ramping and overspeed alarm. It provides 10A continuous output to control a forward-acting actuator and accepts a magnetic speed sensor input. Troubleshooting tips are provided for issues with the actuator or low engine speed.
This document discusses electrical auxiliary systems for power stations. It covers:
- Requirements for electrical components to be reliable and withstand fault conditions.
- Different voltage supplies available for auxiliary equipment including high voltage, 415V 3-phase, 230V single phase, and DC.
- Details on electric motors used for auxiliary equipment like requirements, ratings, starting capabilities, and testing.
- Requirements for motor starters and contactors including short circuit protection and control circuit voltage isolation.
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The document provides information about Bin Qasim Power Plant 2 (BQPS II) in Pakistan. It details the plant's capacity of 560 MW generated from 3 gas turbines and 1 steam turbine. The plant site is administered by three main departments: Electrical, Mechanical, and Instruments and Control. Key installations at the plant include natural gas compressors, gas turbines, steam turbine, generators and associated equipment. Protection systems for the gas turbines are also outlined.
This document discusses various grounding techniques for electrical systems. It begins by comparing different grounding methods such as ungrounded, solidly grounded, and resistance grounded systems. It then focuses on high resistance grounding and describes how HRG limits fault currents while allowing systems to continue operating after ground faults. The document provides examples of applying HRG to generators, variable frequency drives, and paralleled power sources. It discusses component ratings, fault currents, harmonics, and coordination of protection devices for HRG systems.
This document contains a question bank for energy managers and energy auditors related to energy efficient technologies in electrical systems. It includes 20 multiple choice questions about topics like maximum demand controllers, power factor correction capacitors, automatic power factor controllers, energy efficient motors, variable frequency drives, and more. It also includes short answer questions about maximum demand control, automatic power factor controllers, areas for improvement with energy efficient motors, technical aspects of energy efficient motors, soft starters, variable torque loads, variable frequency drives, and applications of variable frequency drive control for pumps and fans.
This document contains a question bank for energy managers and energy auditors related to energy efficient technologies in electrical systems. It includes multiple choice, true/false, and short answer questions that cover topics like maximum demand controllers, power factor correction, variable speed drives, energy efficient motors and transformers, lighting controls, and other retrofit opportunities. Long answer questions provide more detailed explanations of demand controllers, automatic power factor control methods, soft starters, variable speed applications, and recommended retrofit actions for facilities. The question bank is intended to test knowledge of key electrical system optimization strategies.
This document summarizes two motor starting simulation studies using ETAP software. The first case studied the starting of a large induction motor under full voltage with different pole configurations. The second case compared the starting of a synchronous motor under full voltage versus reduced voltage using a soft-starter. Both simulations evaluated thermal limits. Field test oscillography of the synchronous motor demonstrated the need for a soft-starter to avoid voltage depression affecting other loads. The simulations showed the induction motor required low-speed starting to stay within thermal limits, while the synchronous motor required reduced voltage starting to maintain acceptable voltage levels.
Gsm based transformer fault detection systemKabilesh K
This document describes a GSM-based system for remotely monitoring and detecting faults in distribution transformers. The system uses sensors to monitor the transformer's voltage, temperature, power consumption, and oil level. It sends alerts via GSM if any of these exceed safe limits. A microcontroller processes the sensor data and triggers a relay to disconnect the transformer if a fault is detected, sending an SMS alert. This allows faults to be addressed before complete failure occurs, improving reliability while reducing costs compared to manual monitoring.
Varaible Speed Drives for Motor Driven Fire PumpsJames S Nasby
Variable speed fire pump controllers can use variable frequency drives (VFDs) to control pump speed. VFDs have several elements including rectifiers, DC links, and inverters. They provide soft starting for motors but can also affect motors and electrical systems. Proper motor requirements, testing, and system tuning are needed for fire pump applications.
Retro kit presentation for service managersPaul Wareham
The document describes the GSC400 generator control panel which monitors and displays key parameters of gas or diesel generators such as oil pressure, engine temperature, hours of operation, voltage, amps and frequency. It has a 5-year warranty and is designed for easy installation with a small footprint, built-in relays and a pre-wired harness. Optional accessories include a remote annunciator that connects up to 2800 feet away and remote communications hardware that allows real-time monitoring and control via a wired Ethernet or cellular connection.
Data Sheet-Cummins 250KW Diesel Genset(NTA855-G2)Emma Zeng
This technical datasheet provides specifications for the CDL250SA generator set from AUTS Technology Co., Ltd. It consists of a Cummins diesel engine and Stamford alternator, has a rated power of 250kW standby and 280kW prime, and meets various international standards. Key features include a water-cooled cooling system, electronic governor, and optional sound attenuated or open enclosures. It undergoes rigorous testing before delivery and has a 12-month warranty on engine and alternator.
The Eaton Automatic Transfer Switch (ATS-PWR) monitors mains power for abnormalities and automatically starts a generator to provide backup power if issues are detected. It then switches the load to the generator. When mains power is restored, it returns the load to mains and stops the generator. The ATS-PWR offers benefits like remote monitoring, history logging for troubleshooting, and communication interfaces. It can be configured for standby generator applications to provide automatic backup power in the event of a mains failure.
The Eaton Automatic Transfer Switch (ATS-PWR) monitors mains power for abnormalities and automatically starts a generator to provide backup power if issues are detected. It then switches the load to the generator. When mains power is restored, it returns the load to mains and stops the generator. The ATS-PWR offers benefits like remote monitoring, history logging for troubleshooting, and configurable transfer settings. It can be used for standby generator applications to provide backup power in the event of a mains failure.
1. Medium voltage systems can use different neutral grounding methods including solid grounding, impedance grounding, and high resistance grounding.
2. Impedance grounding limits line-to-ground fault current using a neutral grounding resistor or transformer, while high resistance grounding is used to control arc flash hazards in mines.
3. The neutral grounding method affects protection schemes, equipment ratings, and overvoltage stresses on the system. Core balancing CTs and open delta PTs are commonly used for earth fault detection on impedance grounded systems.
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Storytelling is an incredibly valuable tool to share data and information. To get the most impact from stories there are a number of key ingredients. These are based on science and human nature. Using these elements in a story you can deliver information impactfully, ensure action and drive change.
The 10 Most Influential Leaders Guiding Corporate Evolution, 2024.pdfthesiliconleaders
In the recent edition, The 10 Most Influential Leaders Guiding Corporate Evolution, 2024, The Silicon Leaders magazine gladly features Dejan Štancer, President of the Global Chamber of Business Leaders (GCBL), along with other leaders.
Brian Fitzsimmons on the Business Strategy and Content Flywheel of Barstool S...Neil Horowitz
On episode 272 of the Digital and Social Media Sports Podcast, Neil chatted with Brian Fitzsimmons, Director of Licensing and Business Development for Barstool Sports.
What follows is a collection of snippets from the podcast. To hear the full interview and more, check out the podcast on all podcast platforms and at www.dsmsports.net
Anny Serafina Love - Letter of Recommendation by Kellen Harkins, MS.AnnySerafinaLove
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1. SPECIFICATIONS FOR AMF CONTROL PANEL
Control panel shall be cubical type made of 16 gauge CRCA sheet with hinged type
openable covers mounted above base frame at suitable location of E/A set and
supported on both sides on base frame. Rubber pads of 6mm. thickness shall be
provided between the base frame and control panel supports. All the control panel wiring
should be easily accessible and shall have sufficient working space for making
connections of cables etc. A manual bypass switch shall be provided on the control
panel for total bypass of the AMF system . The changeover from Mains supply to EA set
supply should be possible in manual mode with AMF relay totally bypassed. However in
manual mode all the safeties / tripping devices of E/A Set should remain
functional. A tinned copper earth stud of adequate dimension shall be provided. The
panel approved by the Electrical Wing of BSNL C.O. shall only be used
Functional Requirements :-
• All the functional requirements in Auto mode are to be achieved through
microprocessor based AMF Controller. The logic for starting & stopping
shall be :-
(i) If the mains fail, or one or more phase of mains is not available.
(ii) If any phase voltage of mains is out of preset limits however there
should be a provision to set the limits of higher and lower phase
voltages as per the site requirement. The mains supply with in this
range shall be considered as healthy so as to avoid continuous
running of Engine Alternator Set.
(iii) The system should measure 48V battery of the telecom equipment. In
case the battery voltage is above a settable limit & room temperature as
measured in the AC Controllers logic is below a preset max room
temperature, the engine should not start unless one of the conditions
fails. This should work using the GSM network.
• As the operating range of the power plant is from 90 V to 300 V (L-N) and that
of AC Voltage stabilizer is quite wide, the AMF relay should be able to trigger
E/A Set for starting and stopping in accordance with this range.
• Switch the load to the engine supply after suitable time delay, after starting the
engine on mains failure/phase failure / low voltage / high voltage.
• Switch the load back to the mains supply after suitable time delay, when healthy
mains supply is restored and stopping the Engine.
• Attempt to start the Engine up to three times on failure of earlier attempts with
suitable time intervals.
• Two level fuel sensor for fuel should be provided at 50% & 25%
respectively.
• System should provide following settable features :-
(a) Mains failure time - to initiate automatic EA start after 0 to 300
seconds of mains failure.
2. (b) Mains restore time - to initiate automatic stop of EA after 0 to 300
seconds of mains in stable conditions.
(c) Low oil pressure delay time - 0 to 99 seconds delay of the low
pressure oil input alarm from engine start.
(d) Stop solenoid time - 10 to 99 seconds enabling time for "stop
solenoid".
(e) Cranking up time - 0 to 99 seconds enabling time for starter. The
timer is reset if the engine starts before the programmed time.
(f) Start attempts - 1 to 3 numbers of automatic attempts during
automatic start cycle.
(g) Attempts interval - 1 to 99 seconds time interval between starting
pulse attempts.
(h) Cooling down time - 0 to 300 seconds engine cooling time before
stopping. During this time the engine runs without load.
(i) Generator voltage time - time of stable generator voltage to close
EA contactor to load (0 to 300 seconds).
• AMF relay should have facility for RS 232 serial communication interface
following TCP / IP Protocol and should be compatible for transferring the
required data to the base station in excel sheet with necessary software
through GSM modem. The responsibility of providing GSM modem along
with the required software lies with vendor applying for approval of AMF
Control Panel.
• In view of the fact that GPRS connectivity is not available at all the sites,
the connection between the AMF Control panel and base monitoring
station should have capability for both GPRS & SMS. The modem should
try Ist for GPRS connectivity and in case of non availability of GPRS
connectivity, the SMS should be tried as IInd priority.
• For sending alarms and designated events the SMS should invariably be
generated from the site only (where the AMF Panel is installed) .
• The communication at the base monitoring station can be either with GSM
Modem (with or without server) or with server based internet portal. In
either case there should not be any limitation for no. of sites to be linked
with the base monitoring station. Necessary hardware protection along with
software protection should also be provided at base monitoring station. In
case in future if BSNL wants to shift to its own server then the system
should be compatible and the firm shall provide the necessary support for
the same. No extra charges for any additional hardware / software
requirements on this account shall be borne by BSNL.
The panel shall be consisting of: -
(i) 4 x 20 character back lit LCD on front fascia for showing various
parameters of mains & DG viz. 3 ph voltage, 3 ph current, frequency, KWH of
mains, KWH generated by DG, month wise energy register, PF of all 3 phases,
DG running hours, DG battery voltage, DG speed etc.
(ii) 2Nos. of 4 pole 63A(with adjustable current setting) MCCB (This rating of
MCCB is for 15 KVA EA Set only, for other EA Set ratings the same should be
suitably enhanced)
3. a) Contactors: - The rating of mains contactor shall be derived from KVA
rating and the minimum voltage (90 V) which comes out 63 Amp for 15
KVA DG Set for AC – 3 duty cycle. Rating of DG Contactor shall be derived
from the KVA rating at 200 V which comes out 45 Amp for 15 KVA DG
Set for AC – 3 duty cycle. For other EA Set ratings the same should be
suitably enhanced. Both the contactors shall be electrically interlocked with
contactor coil.
b) The supply to the coil of the mains contactor is to be provided with the help of a
static voltage regulator having vide input range from 90Volts to 300 Volts and
output with in the operating range of contactor coil.
c) Potential free contacts for extension of alarms- (6 Nos.) viz. lack of fuel, LLOP,
Mains Fail, Engine Fail to start, Canopy door opening, high cylinder / Water
temp.
d) Microprocessor based Automatic Mains Failure Controller (suitable for 12VDC),
• The following parameters are required to be transmitted to remote station in
excel sheet :-
a. Line – Neutral Voltage of all three phases of mains and DG
b. Load current for all three phases
c. DG Run hours
d. DG battery voltage
e. DG Speed
f. Frequency
g. Mains KWH
h. DG KWH
• The following alarms are to be transmitted to the remote station in excel
sheet :-
1. LLOP
2. DG on
3. DG battery low
4. DG fuel low
5. Under speed / Over speed
6. Stop fault
7. Start fault
8. Engine Temperature high
9. Alternator fault
10. BTS battery low
11. Mains ok / mains faulty
12. Overload
13. Over / under voltage
14. Canopy temperature high
• The following alarms are to be made available in AMF Control panel /
Controller through LEDs / LCD
a) Mains fail
b) LLOP
c) High cylinder / water temperature
d) Over speed
e) Under speed
f) Alternator fault
g) DG fail to start
4. h) DG fail to stop
i) Overload
j) Fuel low
k) Fuel very low (for stopping of engine)
l) BTS battery low
m) DG battery low
n) DG fault (common for any DG fault)
o) Canopy door open
p) Fire Alarm
q) Canopy temperature high
r) Low water level (for water cooled sets)
s) Over / Under voltage
t) Over / Under frequency
Operational Requirement
i. AC and DC wiring shall be separated distinctly.
ii. Connections of control wiring shall be done with connector strips and ferrules for
identification on both ends.
iii. 1No. Multifunctional meter to indicate Voltage, Current, PF, Frequency & kWh of
DG Set.
iv. Push button for stop, reset, and acknowledge.
v. Recess type hooter.
vi. Audiovisual indication for LLOP, HCT / HWT, Over speed, Lack of fuel.
vii. RYB LED indication for indicating Mains / EA Set Supply – 2 sets.
viii. DC Ammeter [0-15A], DC Voltmeter [0-30V] of size (min.72mmx72mm )with
selector switch for trickle charging through battery charger and battery charging
unit
ix. Selector switch for Auto /Manual operation .
x. Battery Charger: Automatic trickle battery charger of SCR or SMPS type to
charge the starting battery of DEA set. This charging shall be done through main
supply for which a suitable incomer shall be provided in the panel with suitable
range of ammeter and voltmeter on the DC side with protective fuses.
SAFETY CONTROL TRIP
(i) Low lubricating oil pressure.
(ii) High cylinder / water temp.
(iii) Lack of fuel.
(iv) Alternator Fault
(v) Over speed
(vi) Fire Alarm
Note :- Latest test report from any NABL accredited laboratory for protection
against EMI / RFI is required to be submitted along with the application.