electricity supply ppt
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The document describes the components and flow of electricity from high voltage transmission cables to residential and commercial buildings. Electricity travels through step down transformers to reduce the voltage and is then distributed to buildings through feeder pillars, distribution boards, and switchboards, where meters monitor usage before powering individual circuits at safe low voltages. Diagrams show the schematic representation and location of these components in the electric grid system.
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2. Main control panels and distribution boards should be conveniently located for accessibility, especially in emergency situations like fires.
3. Separate circuits should be developed for lighting and power needs, distributing the load evenly across all circuits.
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1.What is Earthing?
2.Purpose of Earthing
3.Qualities of Good Earthing
4.Importance of Earthing
5.Type of Earthing
6.Methods of Electrical Earthing
7.General Method of Electrical Earthing Installation
8.How to work Earthing system?
9.Factors Affect to The Earth Impedance
10.Soil Resistivity
11.Applications of Earthing
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1) Electrical supply systems are classified based on voltage into LV, MV, HV and EHV ranges. Distribution systems can be single or three-phase using 2, 3 or 4-wire configurations.
2) Selection of cables considers current rating, voltage drop and insulation ability to withstand temperatures. Stranded conductors improve flexibility. Fuses and circuit breakers protect against overloads, short circuits and earth faults.
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The document discusses various building services including HVAC, electrical, plumbing, and fire protection systems. HVAC systems regulate temperature and humidity through heating, cooling, ventilation and air conditioning. Electrical systems include wiring and fire alarms. Plumbing systems distribute water and remove waste. Fire protection involves passive firewalls and active detection/suppression systems like sprinklers.
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This document discusses various elements that influence building services system design, including moisture, heat, ventilation, lighting, and acoustics. It provides information on each element, such as defining moisture levels, heat transfer sources, ventilation system types, factors that influence lighting brightness, and types of artificial lighting. Various examples and exercises are also included, such as calculating air changes and the number of lights needed in a room.
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Electrical wiring is used to carry current and power buildings and structures. There are different types of wiring for domestic, commercial, and industrial use. The choice of wiring depends on factors like durability, safety, appearance, cost, accessibility, and maintenance costs. Common types of wiring include cleat wiring, CTS/batten wiring, metal sheathed wiring, casing and capping, and conduit wiring. Each type has advantages and disadvantages for use depending on the situation. The document also discusses wire specifications and switch types.
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This document discusses electrical systems in buildings. It covers topics like electricity generation, distribution circuits, wiring systems, earthing systems, domestic supply, electrical appliances and electric installations. The key points are:
- Electricity is generated using water or fossil fuels and transmitted through transformers at high voltages to reduce losses.
- Buildings are supplied electricity through single or three phase distribution depending on the load. Wiring systems include cleat, casing, conduit and surface wiring.
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A building provides shelter but building services are what make it functional for occupants. Building services include mechanical (HVAC, plumbing), electrical (power, lighting), and operational systems (transportation, automation) that provide a safe, comfortable environment. As architects, it is important to plan and design building services alongside the building structure. Proper allocation of services like HVAC, plumbing, electricity is necessary for floor plans. Building services are key to sustainability and livability of all building types from residential to industrial.
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Building services engineers are responsible for designing, installing, and monitoring mechanical, electrical, and plumbing systems in modern buildings to ensure safe and comfortable operation. This includes systems like HVAC, electrical power distribution, lighting, plumbing, fire alarms and more. Engineers must consider factors like building codes and regulations, load calculations, transformer and generator sizing when designing these complex building systems. Proper lighting design also requires considering illumination levels, fixture types and lighting controls.
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45 16255 ee543_2015_1__2_1_week_1_2
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This document provides an overview of grid substations. It discusses how substations receive power from generating stations and transmission lines and transform voltages to suitable levels for distribution. It also describes the key components of substations, including transformers, circuit breakers, and earthing systems. Classification of substations by voltage level and indoor/outdoor design is covered. The purpose and components of transmission lines, including conductors, insulators, towers, and earth wires, are summarized as well.
Indusrtrial training ppt (1).pptx
The document summarizes a summer training report at the 220 KV GSS RRVPN Kotputli substation in Jaipur, India. It details the key components of the substation, including transformers to step voltage up and down, circuit breakers, isolators, lightning arresters, and more. Diagrams and explanations are provided for each component. The report concludes that the training increased understanding of how electricity is transmitted and the critical role played by substations in transforming and distributing power across the grid.
Substation
The document differentiates between substations and grid stations. It states that a substation is a conversion point between transmission and distribution voltages using transformers to serve a regional area. Substations are connected by transmission lines. A grid station interconnects two transmission circuits, often between regions, and may contain transformers. The interconnected network of grid stations forms the electrical grid.
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Mysore WhatsApp group:- https://chat.whatsapp.com/EhqtHtCC75vCAX7gaO842N
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Giridhar Meka - https://www.linkedin.com/in/giridharmeka
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- 4. Source High Tension Cables Low tension Room Substation Feeder Pillar DB Meter Bus Bar Switch Board Point
- 6. LOCATION MAP
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