Answer / dhara. s

Marshelling box is generally erected at switch yard near the trafo & RTCC is erected at control room. MB is to marshell control cables from control & relay panel also from RTCC to OLTC & other supervision & cooling control system connected to transformer tank. RTCC panel is to operate tap & to supervise transformer heating & cooling conditions.

What is Magnetic Current Test of Transformer.

2 Answers  

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it is difficult to interrupt a capacitive current because (a)it has a leading power factor (b)current magnitude is very small (c)the restriking voltage can be high (d)stored energy in the capacitor is high

2 Answers   DGVCL Dakshin Gujarat Vij Company, MGVCL, UGVCL Uttar Gujarat Vij Company Ltd,

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Why arc quenching is used in Diode ?

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What is magneto on a gas generator. how it functions. its out put is d.c or a.c. how it can be checked for correct functioning

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why transformer rating in always in KVA ?

4 Answers   Horizon Computers,

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hi plz send me reliance placement papers..i.e electrical technical papers that have been asked in reliance test.

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what is meant by star/delta voltages as 440/220 in a 3 phase induction motor, and why it should be connected on STAR IN 3 PHASE SUPPLY

0 Answers   L&T,

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Single phase and threephase power calculation

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what is FET

1 Answers  

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in single phase we get 220 volt and in three phase 4420 v why this second Ques= in case three phase star conection our neutrul becom disconect what happan 3 Q=== a three phase house load and have unbalce load on different pahse diffrent current eg phase a 7A b 8A c 5A and voltage is 440 than how calculate it total load in kw pl give formula thanks

8 Answers  

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The temperature rise in the sys, which leads to ….. a) Increases stress& length b) increases stress but decreases length c) Decreases stress & increase length d) decrease stress & length

1 Answers   Engineers India Limited,

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what is neutral?

2 Answers  

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