Classification of Substation According to Method of Construction

1 Answer

Answer :

Classification of Substation According to Method of Construction:-

1. Indoor Substation

2. Outdoor Substation

3. Gas insulated Substation

4. Underground Substation

5. Pole mounted substation

6. Plinth Substation

7. Compact/prefabricated substation

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Last Answer : The systems of substation auxiliaries ensure operation of substations providing internal consumers of substations with operating direct and alternating currents. Any breakdown (loss) of auxiliary systems ... whole substation, as well as serious problems during its subsequent putting into operation.

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Last Answer : Lightning arrestor is the first equipment of the substation connecting the incoming transmission lines. It protects other substation equipment from lightning and switching surges by suppressing them to ... between both the ends of major equipment such as power transformers for protection.

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Last Answer : Busbars are generally made of copper and Aluminum. Aluminim has the advantage of one third the weight of the copper and also Aluminum requires less maintenance and proper use of alloys provide necessary rigidity required for bus material. Aluminum is used widely in EHV and HV stations

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Last Answer : Ground Clearance: This is the minimum distance between any live conductor and the earth or ground. Phase Clearance: It is the clearance between the different phases in a circuit or same phases in different ... The limits of work section may be ground or the platform on which the person is working.

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Last Answer : Following condition should be considered while selecting site for distribution sub-station:-  1. Near load center :  Sub-station should be located near load center to reduce cost of Transmission and ... free from earthquake :  To avoid damage to sub-station area should be free earth quake. 

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Description : Which type of bus arrangement is costlier and more reliable?

Last Answer : One and half breaker scheme is most reliable and costlier scheme. In one and half breaker scheme 3 circuit breakers are provided for 2 bus-bars. Hence the name is coined as One and half breaker scheme

Description : What are different types of busbar arrangement Schemes in Substations?

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Last Answer : Some of the disadvantages of corona are: Corona causes power loss Corona causes unacceptable noise Corona cause radio interference

Description : What is Basic Impulse Level (BIL)?

Last Answer : Basic Impulse Level (BIL) refer to the peak value of lightning impuse voltage withstand capability of the equipment

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