Answer / sks

TOLERENCE LIMIT = LESS THAN 01 VOLT, BECAUSE AT TRANSROEMER
OR GENERATOR NEWTRAL IS CONNECTED WITH EARTH, IF EARTH IS
DRY, STRIP OR WIRE IS CORRODED AT JOINTS THAN VOLTAGE
POSSIBLE TO BE MORE.

Answer / nikunj

I Think it should be less than or equal to 5 volt between
earth and neutral. if it greater than 5 your earthing is
not good and you have to add water in earthing pits for
making earthing strong.

Answer / saleem khan

Clearance between neutral and earth should not be less
than 20mm.

Answer / dolly prasad

2V IS THE TOLERANCE LIMIT BETWEEN NEUTRAL AND EARTH.

Answer / s c budhiraja

voltage between neutral and earth should not be more than
2 volts

Answer / mukund

They Should be at same potential, Hence no tolarance is
required

Answer / nilmadhab karmakar

i think it is 230V DC.

why rotor current reading is taken & why not stator?

4 Answers  

take 100kva DTR( delta/wye ), what ll happen if we connect 11kv to LT side instead of connecting to HT side? will the DTR behave as a step up transformer or something else????

0 Answers  

Dear sir/mam Iwant complete details of Naintenence of 33kv/433v Transformer having 1250 KVa

1 Answers  

Any one can explain if there is any harm from humming noise heard from air circuit breaker : we have 415 switch board having two incomers from transformers 3.3KV/415V , when bus coupler closed, and open one ACB incomer to work in one of the transformers, the current started hunting around 50 Amps, and heard humming noise from the air circuit breaker, although the load current was only 1200 amps while the ACB capacity is 2500 Amps, and the transformer 1600 KVA. The same didn't happen when taken the other transformer offline. Why this humming noise and current fluctuation? is there any implication or danger, bearing in mind that we just returned everything back to normal and stopped the maintenance of the transformer. Shall we go ahead and ignore this noise?

6 Answers  

if u want to buy a motor than what will be the configuration of that motor?

2 Answers  

why can we use cosine wave instead of sine in ac supply as both have same rms vale and ripple factor

0 Answers   Indcoil Transformers, Power Grid,

how do you select the ct/pt rating in substation

1 Answers   Apollo, Shreem Electric Ltd, Tata Motors,

what is meant by 3rd hormonics ?

0 Answers  

1amps current equal to howmany electrons to be flowed?

1 Answers  

Is the theorem applicable to ac sources?

0 Answers  

Dear Sir, I willing to know if one 15Hp induction motor run in star connection. What happen power capacity of motor? Plz tell me.

1 Answers   Amtek Tekfor Automotive,

why transmission voltage is 230kv and not 220kv which is a multiple of 11

1 Answers   Mettur Thermal Power Station, Siemens,