1.3 wiring accessories
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This document discusses and classifies various electrical wiring accessories. It describes controlling accessories like switches, mounting accessories like holders used to mount fixtures, safety accessories like circuit breakers and fuses, and general accessories like connectors, ceiling roses and plug sockets. These accessories are important components used in home and building wiring systems to control and distribute electricity safely.
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KSRM COLLEGE OF ENGINEERING ,KADAPA.
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ELECTRIACAL WIRING IN DOMESTIC AND INDUSTRIES
Contents :
Introduction
1.Electrical power supply wiring.
2.Domestic electric circuits.
3.Domestic wiring .
4.Sub-circuits in domestic wiring.
5.Methods of wiring.
6.Industrial Electrification .
7.Types of installation.
8.Electrical installation for power circuits.
INTRODUCTION :
Electrical wiring is an electrical installation of cabling and associated devices such as switches, distribution boards, sockets and light fittings in a structure. Wiring is subjected to safety standards for design and installation. Allowable wire and cable types and sixes are specified according to the circuit operating voltage and electric current capability, with further restriction on environmental conditions ,such as ambient temperature range, moisture levels, and exposure to sunlight and chemicals .
Associated circuit protection, control and distribution devices within a building’s wiring system are subject to voltage, current and functional specification. It is necessary to select proper type of wiring scheme for the domestic purpose. Thus a network of wires connecting various accessories for distribution of electrical energy from the supplier meter board to the numerous electrical energy consuming devices through controlling and safety devices is known as Electrical wiring.
Electrical power supply wiring
Fig(1):Electrical power transmission from electric pole to energy meter to distribution board
Domestic electric circuits:
1.Electric power is usually generated at places which are far away from the places where it is consumed . At the generating station, the electric power is generated at 11KV volts . This voltage alternates at a frequency of 50HZ.
2.The power is transmitted over a long distance at high voltages to minimize the loss of energy in the transmission.
3.The electric power line enter our house through three wires -namely the live wire, the neutral wire and the earth wire.
4.To avoid confusion we follow a colour code for insulating these wires.
5.The ted wire is the live wire, and the black wire is neutral, the earth wire is given green plastic insulation.
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1.The live wire has a high potential of 220V whereas the neutral wire has zero potential .Thus the potential difference between the live wire and the neutral wire is 220-0=220V.
2.The earth wire is much thicker in size and is made of copper. One end of it is connected to a copper plate buried deep under the earth. The earth connection is made to the electric meter and then the main switch.
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This document discusses different types of electrical conduits. It begins by defining an electrical conduit as an electrical piping system used to protect and route electrical wiring. It then describes the following types of conduits:
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- Metallic flexible conduit which is commonly used for external motor terminal connections.
- Non-metallic non-flexible conduit including polyvinyl chloride pipe.
- Non-metallic flexible conduit which has a smooth interior and non-conducting fibrous material wall.
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The document discusses the five main types of wiring:
1. Wooden casing and capping wiring uses grooved wooden casings to hold wires, but has a shabby appearance.
2. CTS wiring uses cabtyre sheathed wires run through teak battens, protecting against chemicals and fire while having a better appearance than wooden wiring.
3. Cleat wiring uses VIR or PVC insulated wires run through porcelain cleats, for temporary installations like events.
4. Lead sheathed wiring has lead-aluminum alloy sheathing over VIR insulated wires, protecting against damage but is only used for low voltages due to cost.
5. Conduit wiring runs P
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Copper and aluminum are common materials used for electrical conductors. Copper is a better conductor but aluminum is lighter weight and cheaper. Different types of wires include PVC-coated wires, which are durable, long-lasting, and resistant to water, heat, oil and UV light. Conductors with higher resistance, like tungsten and nichrome, are sometimes used to convert electrical energy into heat, light, and sound. The size and type of wire or cable must match the power rating required for safe use, as supplying too much current can cause overheating and damage insulation, potentially resulting in a short circuit.
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Beeteco.com là trang mua sắm trực tuyến thiết bị điện - Tự động hóa uy tín tại Việt Nam.
Chuyên cung cấp các thiết bị: Đèn báo nút nhấn, Relay, Timer, Contactor, MCCB ELCB, Biến tần, Van, Thiết bị cảm biến, phụ kiện tủ điện, .... Từ các thương hiệu hàng đầu trên thế giới.
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Địa chỉ : Số 7/31 KDC Thương Mại Sóng Thần, KP. Nhị Đồng 1, P. Dĩ An, Tx. Dĩ An, Tỉnh Bình Dương
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The wiring is important to every industries and domestic.And how the electrical power comes from transmission line to meter board to our domestic switch board ,switches etc.Here we explain the contents of the domestic wiring and industrial electrification etc.
below shows related documents.
KSRM COLLEGE OF ENGINEERING ,KADAPA.
_________________________
ELECTRIACAL WIRING IN DOMESTIC AND INDUSTRIES
Contents :
Introduction
1.Electrical power supply wiring.
2.Domestic electric circuits.
3.Domestic wiring .
4.Sub-circuits in domestic wiring.
5.Methods of wiring.
6.Industrial Electrification .
7.Types of installation.
8.Electrical installation for power circuits.
INTRODUCTION :
Electrical wiring is an electrical installation of cabling and associated devices such as switches, distribution boards, sockets and light fittings in a structure. Wiring is subjected to safety standards for design and installation. Allowable wire and cable types and sixes are specified according to the circuit operating voltage and electric current capability, with further restriction on environmental conditions ,such as ambient temperature range, moisture levels, and exposure to sunlight and chemicals .
Associated circuit protection, control and distribution devices within a building’s wiring system are subject to voltage, current and functional specification. It is necessary to select proper type of wiring scheme for the domestic purpose. Thus a network of wires connecting various accessories for distribution of electrical energy from the supplier meter board to the numerous electrical energy consuming devices through controlling and safety devices is known as Electrical wiring.
Electrical power supply wiring
Fig(1):Electrical power transmission from electric pole to energy meter to distribution board
Domestic electric circuits:
1.Electric power is usually generated at places which are far away from the places where it is consumed . At the generating station, the electric power is generated at 11KV volts . This voltage alternates at a frequency of 50HZ.
2.The power is transmitted over a long distance at high voltages to minimize the loss of energy in the transmission.
3.The electric power line enter our house through three wires -namely the live wire, the neutral wire and the earth wire.
4.To avoid confusion we follow a colour code for insulating these wires.
5.The ted wire is the live wire, and the black wire is neutral, the earth wire is given green plastic insulation.
Domestic wiring
1.The live wire has a high potential of 220V whereas the neutral wire has zero potential .Thus the potential difference between the live wire and the neutral wire is 220-0=220V.
2.The earth wire is much thicker in size and is made of copper. One end of it is connected to a copper plate buried deep under the earth. The earth connection is made to the electric meter and then the main switch.
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This document discusses different types of electrical conduits. It begins by defining an electrical conduit as an electrical piping system used to protect and route electrical wiring. It then describes the following types of conduits:
- Metallic non-flexible conduit including rigid steel conduit, intermediate metallic conduit, and electrical metallic tubing.
- Metallic flexible conduit which is commonly used for external motor terminal connections.
- Non-metallic non-flexible conduit including polyvinyl chloride pipe.
- Non-metallic flexible conduit which has a smooth interior and non-conducting fibrous material wall.
types of wiring
The document discusses the five main types of wiring:
1. Wooden casing and capping wiring uses grooved wooden casings to hold wires, but has a shabby appearance.
2. CTS wiring uses cabtyre sheathed wires run through teak battens, protecting against chemicals and fire while having a better appearance than wooden wiring.
3. Cleat wiring uses VIR or PVC insulated wires run through porcelain cleats, for temporary installations like events.
4. Lead sheathed wiring has lead-aluminum alloy sheathing over VIR insulated wires, protecting against damage but is only used for low voltages due to cost.
5. Conduit wiring runs P
Wires & cables
Copper and aluminum are common materials used for electrical conductors. Copper is a better conductor but aluminum is lighter weight and cheaper. Different types of wires include PVC-coated wires, which are durable, long-lasting, and resistant to water, heat, oil and UV light. Conductors with higher resistance, like tungsten and nichrome, are sometimes used to convert electrical energy into heat, light, and sound. The size and type of wire or cable must match the power rating required for safe use, as supplying too much current can cause overheating and damage insulation, potentially resulting in a short circuit.
Electrical maintenance-1
This document provides an overview of electrical maintenance, including definitions, types (preventive, operational, corrective), and examples of tasks. It discusses preventive maintenance strategies like reliability centered maintenance and scheduled inspection/testing of critical components. Specific preventive maintenance techniques are covered for both low and high voltage equipment, including infrared analysis, ultrasound leak detection, transformer oil testing, and polarization index testing. Operational maintenance is defined as care performed by operators during equipment use, while corrective maintenance focuses on repair after breakdown. Modern maintenance software programs are also noted.
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Interior Wiring types and their applications, factors to be considered while selecting the type
of wiring system, materials required for Interior wiring and their specifications, Code of
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a residential buildings, size of conductors, main switch, sub switches and protective devices.
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Chuyên cung cấp các thiết bị: Đèn báo nút nhấn, Relay, Timer, Contactor, MCCB ELCB, Biến tần, Van, Thiết bị cảm biến, phụ kiện tủ điện, .... Từ các thương hiệu hàng đầu trên thế giới.
www.beeteco.com @ Công ty TNHH TM KT ASTER
Địa chỉ : Số 7/31 KDC Thương Mại Sóng Thần, KP. Nhị Đồng 1, P. Dĩ An, Tx. Dĩ An, Tỉnh Bình Dương
FB: www.facebook.com/beeteco
Email: contact@beeteco.com
Tel: 0650 3617 012
Hotline: 0909.41.61.43
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The document summarizes a seminar presentation on medium voltage switchgear. It discusses safety features, standards, ratings, construction details, components like buses and breakers, and auxiliary devices of metal-clad switchgear. The presentation provides an overview of medium voltage switchgear design and specifications.
Lv switchgear & lv cable sizing
The document discusses low voltage switchgear and cable sizing. It provides information on governing standards, system parameters, construction details of LV switchgear including busbars and components. It discusses fixed and drawout construction types. It also covers IP ratings, cable sizing criteria and applications of LV switchgear and cables in industrial, domestic and commercial load distribution systems.
Fast Moving Electrical Products
This document discusses fast moving electrical products including electrical switches and sockets, lights, capacitors, push buttons, relay switches, low voltage switchgear, wires and cables, industrial plugs and sockets, and fans. It provides brief descriptions of each product, noting that switches and sockets provide safety against electric shocks, LED lights are highly energy saving, capacitors are in high demand for industrial and manufacturing uses, push buttons can provide emergency protection, relay switches have wide applications for controlling loads, low voltage switchgear can detect power faults, wires and cables conduct electrical signals flexibly, industrial plugs and sockets are safe and durable, and fans have cooling functionality and innovative designs.
04 - Driver Components - Fuji Electric
Catalog thiết bị đóng cắt Fuji Electric - 04 - Driver Components
*********************************************************************
CTY TNHH HẠO PHƯƠNG - Nhà phân phối chính thức các thiết bị điện công nghiệp và tự động hóa của hãng FUJI ELECTRIC JAPAN tại Việt Nam
Xem chi tiết các sản phẩm Fuji Electric tại
http://haophuong.com/b1033533/fuji-electric
Basic electronics unit 4.pptx
The document discusses various types of electronic switches including toggle switches, DIP switches, push button switches, and membrane switches. It describes what each type of switch is used for, its basic configuration and operation, and provides examples of common applications. Toggle switches are classified by pole and throw configuration and can be either momentary or maintained contact. DIP switches allow configurable settings and are available in slide, piano, and rotary styles. Membrane switches are constructed of layered plastic films with printed circuits and provide durable user interfaces.
Basic electronics unit 4.pptx
The document discusses various types of electronic switches including toggle switches, DIP switches, push button switches, and membrane switches. It describes what each type of switch is used for, its basic configuration and operation, and provides examples of common applications. Toggle switches are classified by pole and throw configuration and can be either momentary or maintained contact. DIP switches allow configurable settings and are available in slide, piano, and rotary styles. Membrane switches are constructed of layered plastic films with printed circuits and provide durable user interfaces.
ETL Triac, 0-10V LED Driver inbuilt Junction Box
FEATURES & BENEFITS
•Constant output current level selectable by DIP S.W. and cover almost all indoor lighting wattage
•Built-in active PFC function
•High efficiency up to 90%
•Suitable for 2.4"(L1), 3.1"(L2) cut holes thanks to the compact housing
•Class 2, LVLE output<60V
•THDi less than 10%?
•Suitable for Dim-to-Warm led fixtures
•Side tabs with mounting screw holes to allow mounting of driver
•100% output when no dimming signal input, can be used as normal power supply
0-10V/Rx (10%-100%) Dimming
•Support 1-10V analog dimming signal, Passive or active signal.
•Wide range of input voltage 100VAC ~ 277VAC
•Flicker Free, and compliant to Title 24 and Energy Star
Triac/ELV Dimming
•Smooth dimming effect with both Triac and ELV dimmers
•Typical dimming from 100% to 10%, some dimmers can dim off
•Low flicker design
costing of domestic and industrial wiring
This document discusses various topics related to electrical wiring estimation and costing for domestic and industrial wiring projects. It covers types of wiring, selection of wiring types, importance of layout planning, sub-circuiting, looping, standard wire sizes, testing procedures before commissioning wiring, and provides examples of procedures for estimating wiring costs for domestic and industrial projects. The document is intended to provide an overview and guidance on planning, estimating, and testing electrical wiring installations.
Mini project
This anti-sleep alarm keeps you awake. This circuit keeps you vigilant by sounding intermittent beeps and emitting flashing light so as to remind you that you are not on the bed but driving a vehicle. It works only at night due to the control of a light-dependent resistor (LDR) based switch.
Fuji thiet bi dien-elcbfuji-160413044256
Fuji thiet bi dien-elcbfuji-160413044256
Catalog Fuji,
Catalog Thiết Bị Điện Fuji,
Catalog Điện Công Nghiệp Fuji,
http://dienhathe.com,
Xem thêm các sản phẩm khác của Fuji tại https://dienhathe.com
Để nhận báo giá sản phẩm Fuji vui lòng gọi: 0907.764.966
Fuji thiet bi dien-elcbfuji-160413044256 dienhathe.org
Khoa Học - Kỹ Thuật & Giải Trí: http://phongvan.org
Tài Liệu Khoa Học Kỹ Thuật: http://tailieukythuat.info
Thiết bị Điện Công Nghiệp - Điện Hạ Thế: http://dienhathe.vn
Catalog ELCB Fuji Electric dòng G-TWIN Mới Nhất
1. The document provides information on Fuji Electric's low and high voltage electrical equipment products, including earth leakage circuit breakers (ELCBs) and earth leakage protective relays.
2. Fuji Electric's G-TWIN ELCB series offers compact breakers that meet both UL489 480V and IEC 440V requirements. The series conforms to various international standards.
3. Features of the G-TWIN series include reduced accessory types, improved protection coordination, and conformance with environmental regulations.
plano schematic
The document provides information on the electrical system schematic for a Caterpillar R1600H COMMAND MXZ Lite machine, including:
- Component and connector location tables with schematic locations and machine positions.
- Callout format for components.
- Symbol and abbreviation definitions for the schematic.
- Notes on safety, troubleshooting, and ordering replacement parts.
- Page 1 of the 2-volume schematic, showing electrical connections between components.
POWER ELECTRONICS BASIC COMPONENTS INTRODUCTION PART 1
Power electronics is a branch of electronics engineering that deals with high voltages and currents. It involves components that can handle voltages in the hundreds or thousands and currents in the hundreds of amps. Power electronics converters include rectifiers to convert AC to DC, inverters to convert DC to AC for solar power, choppers to vary DC voltage, and cycloconverters to change AC frequency. Common power electronic devices are DIACs, TRIACs, SCRs, GTOs, UJTs, PUTs, LASCRs, power diodes, PNPN diodes, BJTs, power MOSFETs, and IGBTs.
Catalogue ELCB Fuji - Earth Leakage Circuit Breaker Fuji - Beeteco.com
ELCB Fuji: thiết bị đóng cắt Fuji
Beeteco.com là trang mua sắm trực tuyến thiết bị điện - Tự động hóa uy tín tại Việt Nam.
Chuyên cung cấp các thiết bị: Đèn báo nút nhấn, Relay, Timer, Contactor, MCCB ELCB, Biến tần, Van, Thiết bị cảm biến, phụ kiện tủ điện, .... Từ các thương hiệu hàng đầu trên thế giới.
www.beeteco.com @ Công ty TNHH TM KT ASTER
Số 7 Đại Lộ Độc Lập, KCN Sóng Thần 1, P. Dĩ An, Tx. Dĩ An, Bình Dương
www.facebook.com/beeteco
Tel: 0650 3617 012
Catalog ls metasol mccb_e_1103
Catalog LS, Catalog,
Catalog Thiết Bị Điện LS, Catalog Thiết Bị Điện,
http://dienhathe.com,
Chi tiết các sản phẩm khác của LS tại https://dienhathe.com
Xem thêm các Catalog khác của LS tại https://dienhathe.info
Để nhận báo giá sản phẩm LS vui lòng gọi: 0907.764.966
Catalog ls metasol mccb_e_1103_denhathe.vn
Khoa Học - Kỹ Thuật & Giải Trí: http://phongvan.org
Tài Liệu Khoa Học Kỹ Thuật: http://tailieukythuat.info
Thiết bị Điện Công Nghiệp - Điện Hạ Thế: http://dienhathe.org
Catalog ls metasol mccb_metasol_denhathe.vn
Khoa Học - Kỹ Thuật & Giải Trí: http://phongvan.org
Tài Liệu Khoa Học Kỹ Thuật: http://tailieukythuat.info
Thiết bị Điện Công Nghiệp - Điện Hạ Thế: http://dienhathe.org
Catalog ls metasol mccb_metasol
Catalog LS, Catalog,
Catalog Thiết Bị Điện LS, Catalog Thiết Bị Điện,
http://dienhathe.com,
Chi tiết các sản phẩm khác của LS tại https://dienhathe.com
Xem thêm các Catalog khác của LS tại https://dienhathe.info
Để nhận báo giá sản phẩm LS vui lòng gọi: 0907.764.966
Similar to 1.3 wiring accessories (20)
Fuji thiet bi dien-elcbfuji-160413044256 dienhathe.org
Fuji thiet bi dien-elcbfuji-160413044256 dienhathe.org
POWER ELECTRONICS BASIC COMPONENTS INTRODUCTION PART 1
POWER ELECTRONICS BASIC COMPONENTS INTRODUCTION PART 1
Catalogue ELCB Fuji - Earth Leakage Circuit Breaker Fuji - Beeteco.com
Catalogue ELCB Fuji - Earth Leakage Circuit Breaker Fuji - Beeteco.com
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ELECTRICAL MAINTENANCE
Electrical maintenance involves preventive maintenance to improve efficiency and profitability by preventing accidents, extending equipment lifespan, and avoiding breakdowns. Common electrical faults occur due to improper maintenance, environmental factors like moisture and overloading, poor insulation and ventilation, and normal wear and tear. Locating and repairing faults in various appliances and equipment requires considering inspection, transportation, and parts costs as well as using protective devices like fuses, relays, controllers, switches, and earthing.
ELECTRIC IRON MAINTENANCE
The document summarizes the key parts and specifications of an automatic electric iron. It discusses the heating element, base plate, pressure plate, and temperature controller. The heating element is typically made of nichrome alloy due to its high resistance, melting point, and stability at high temperatures up to 1000°C. The base plate is triangular shaped and chromium plated to prevent rusting. A thermostat is used for temperature control via a bimetallic plate for automatic ON/OFF cycles. General specifications include color, brand type, dimensions while technical specifications list power rating, voltage, frequency.
ELECTRIC PUMP MAINTENANCE
This document discusses the components and operation of a mono block pump system. It includes a single phase motor that runs at 1450 rpm on 230V power, directly connected to a pump that sucks in and forces out water. The pump is housed within a cast iron cover along with bearings to enable rotation and a terminal box containing electrical connections that must be properly earthed and protected from water.
INDUCTION MOTOR
This document discusses single-phase induction motors, specifically capacitor start capacitor run motors. It describes the key components of these motors, including the main body, enclosures, stator, rotor, windings, rotor shaft, capacitor, and bearings. Capacitor start capacitor run motors are widely used in domestic applications under 1 HP to power devices in homes. The document explains the working principle and difference between capacitor start capacitor run motors and only capacitor start motors.
Wiring ch 5.2 dol starter
The document describes the main components of a DOL starter:
1) An enclosure houses the components and provides weather protection.
2) A thermal overload relay opens the contactor circuit if heavy currents cause uneven heating of a bimetallic strip.
3) An electromagnetic contactor uses a coil to attract contacts and complete the main circuit when powered on. It opens the circuit when the coil is deenergized.
market survey
The document lists various electrical wiring products and their suppliers. It includes starters, motors, pumps, fans, switches, wires, sockets, circuit breakers, boards, and regulators. The supplier for each product listed is Easy Engineering.
Wiring ch 2.3 purchase process
This document provides an overview of the electrical wiring purchase process. It defines key terminology used in purchases, describes the different types of purchase methods including inquiry based, tender based, and rate contract. It also outlines the tendering process, types of contracts, terms and conditions, and the role of the purchase committee.
table fan
The document summarizes the key parts of a table fan, including the fan motor, main body, fan blades, regulator, and oscillating mechanism. The fan motor is typically 60-70 watts, uses a 4-pole induction motor with a starting and running winding in a capacitor start capacitor run design. The oscillating mechanism uses a mechanical design to partially rotate the fan in a semi-circle at 4-5 times per minute. The fan regulator controls speed by inserting more or less resistance, and the fan blades are usually made of steel or aluminum with an aerodynamic 3-4 blade design.
ESTIMATION & COSTING OF DOMESTIC & INDUSTRIAL WIRING
This document discusses the estimation and costing of domestic and industrial wiring. It covers types of wiring, factors to consider in wiring selection, importance of layout planning, sub-circuiting, standard wire sizes, looping, testing procedures before commissioning, and processes for estimating costs of domestic and industrial wiring projects. Key steps for domestic wiring estimation include drawing layout plans, calculating electrical loads, determining circuits and sub-circuits, selecting wires and accessories, and calculating material and labor costs.
2.2 total cost
learn how to find out total cost of wiring
1. material cost
2. labour cost
3. admin charges
4. miscellenious and service charge
2.1 estimation
This document discusses two types of electrical wiring estimations: approximate estimations and scientific estimations. Approximate estimations are based on experience and thumb rules and may contain errors, while scientific estimations involve detailed calculations of required materials, labor, and tools based on designs and specifications to predict costs and profit/loss more accurately. Scientific estimations require technical knowledge of calculations, specifications, drawings, standards, and site conditions.
1.4 electric tools
The document lists various tools used for electrical wiring including combination pliers, cutters, nose pliers, wire strippers, screwdrivers, hammers, hacksaws, pincers, try squares, spanner sets, scissors, measurement tapes, test lamps, hand drills, electric drills, neon testers, levels, and wire gauges.
1.2 types of wirings
This document discusses different types of electrical wiring. It describes cleat wiring, batten wiring, casing capping wiring, conduit wiring, and concealed wiring. Concealed wiring is considered the safest and most modern type as it protects wires inside walls, but is also the most difficult and expensive to install and repair. Cleat wiring is a temporary and unsafe type of wiring that is no longer commonly used.
SCR COMMUTATION PART 1
This document discusses commutation of SCRs (silicon controlled rectifiers). Commutation is the process of turning off an SCR. There are natural and forced commutation methods. Natural commutation occurs automatically in AC when the load current drops below the holding current or the SCR becomes reverse biased. Forced commutation is required in DC applications using an extra circuit to forcefully turn off the SCR. Commutation can occur through reducing the current below the holding current level or applying a reverse voltage. There are different classes of commutation depending on the method used.
RATINGS OF SCR
This document discusses the key ratings of silicon controlled rectifiers (SCRs) that must be considered for reliable operation. It outlines voltage ratings like peak repetitive forward blocking voltage and peak working reverse voltage. It also covers current ratings like maximum average current rating and di/dt rating. Thermal ratings like the I2t rating and maximum junction temperature are provided. The document emphasizes that SCRs must operate within these specified ratings to avoid damage.
SCR COMMUTATION PART 2
This document discusses different types of commutation for turning off SCRs (thyristors). It describes Class A commutation which uses a resonant load to achieve zero voltage turn-off, Class B which uses self-commutation via the intrinsic timing of the SCR, and Class C which uses one SCR to turn off another. Class D uses an auxiliary SCR to apply reverse voltage commutation across the main SCR. Class E applies a reverse voltage pulse and Class F utilizes the negative half of an AC cycle for natural commutation without extra circuitry. In summary, the document outlines six common classes of commutation techniques for turning off SCRs either through reducing current or applying a reverse voltage.
MOUNTING OF SCR
The document discusses five different mounting techniques for silicon controlled rectifiers (SCRs) used in power electronics based on capacity level: lead mounting for low capacity, stud mounting for medium-high capacity, bolt mounting for medium-high capacity, press fit mounting for higher capacity, and press pack/disc/hockey pack mounting for very high capacity applications where multiple SCRs are sandwiched between heat sink plates for cooling.
SCR PROTECTION PART 2
SCRs require protection from over voltage, over current, and high rates of change of voltage and current. This is because SCRs are sensitive devices that can be damaged by transient overloads or abnormal operating conditions. Various protection techniques are used like snubber circuits, surge suppressors, fuses, contactors, and gate protection circuits to prevent damage to SCRs in power electronic applications and ensure reliable system operation.
SCR PROTECTION
The document discusses protection methods for SCRs (silicon controlled rectifiers). SCRs are sensitive to over voltage, over current, temperature changes, and gate malfunctions. Protection is needed to prevent damage from high dv/dt, di/dt, over voltage events like lightning surges, and over current. Methods include using capacitors to reduce dv/dt, snubber circuits for di/dt, nonlinear surge suppressors like varistors, selenium suppressors, and avalanche diodes to divert over voltage surges, and thermal protection for over current.
POWER EECTRONICS BASIC COMPONENTS PART 2
This document discusses various power electronics components used in switching and control applications. It describes components like power diodes, SCRs, triacs, GTOs, MOSFETs, and LASCRs. For each component, it provides a brief overview of the construction, operation, characteristics and common applications. The document emphasizes that power electronics components are designed to operate at high voltages and currents compared to normal semiconductor devices.
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1.3 wiring accessories
- 3. EASY ENGINEERING Have you seen any such accessories in your home wiring?
- 5. EASY ENGINEERING Controlling Mounting Holding Safety General Outlet
- 6. EASY ENGINEERING Controlling accessories SPST DPST ICTP ICDP 2 WAY PUSH BUTTON
- 7. EASY ENGINEERING Single Pole One way switch
- 9. EASY ENGINEERING Double pole Single throw switch (DPST)
- 10. EASY ENGINEERING Iron Clad Triple Pole switch ICTP
- 11. EASY ENGINEERING Two Way switch
- 12. EASY ENGINEERING Push Button switch
- 13. EASY ENGINEERING Door bell switch
- 20. EASY ENGINEERING Decorative Batten holder
- 21. EASY ENGINEERING Fancy Angle Holder
- 25. EASY ENGINEERING Board to house wires and switches
- 26. EASY ENGINEERING
- 31. EASY ENGINEERING Earth Leakage Circuit Breaker (ELCB)
- 33. EASY ENGINEERING Cartridge Fuse & Its holder
- 42. EASY ENGINEERING THREE PIN TOP
- 43. EASY ENGINEERING TWO PIN TOP