Answer / 7anoter4

The temperature rise in a conductor of a cable depends on
lot of factors as-for instance-:
1) The current supply way :continuous, intermittent, short-
time.
2) the cable ambient medium: air[free open, conduit, cable
tray], underground[direct, in conduit or in duct]
3) number of cable and distance between them
4) current frequency d.c.,50 or 60 Hz[ conductor resistance
depends on frequency]
5) other source of heat in vicinity-hot pipes, sunshine or
other.

Why grables are put in substation?

1 Answers  

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How to calculate & connection of 900KVA generator 2 sets & load(1500A)? How to choose cable size and ACB size for this load & generator? please explain me detail. Regards, Mr.Han

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While testing a ZCT what parameters have to check or measure?

1 Answers   Indian Railways,

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how can we change the phase angle b/w two phase?

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How can a transformer test by megger?

1 Answers   Bosch,

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how can i increase the excitation on full load running engine??

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while selecting transformers for 33 kva feeder normally we ask for 33/433 kv why not 33/415

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what is the use of excitation transformer in LAVT PANEL?

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Whether earthmat designning is done only for sub station or it can be done for multy residential complexes also? What is the size, type & arrangement of the earth grid to be done?

1 Answers  

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are there rmu for 3 transformer?

1 Answers   OSC,

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what is power factor? is it good or bad for a system? what will happen if power factor increase or decrease?

4 Answers   Bhel,

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