Answer / poovin

Which is classified following category,

Method of cooling - AFAN, AFON, OFAN, OFON, Dry type

Method of Construction - Step up, Step down transformer

Method of Usage - Power Transformer, Distribution Transformer

Answer / manasa ranjan moharana

transformers are basically 2 types,
1. step up transformer
2. step down transformer

Answer / karan

step up transformer & step down transformer

Answer / bala

Current Transformer and Potential transformer.

Answer / chandramohan

distributio,power,auto,potential,current,control,isolation

Answer / c.l.prasanna

step up transformers and step down transformers

Answer / dinesh

two types of transformer's
distribution T/F, power T/F

DRY type T/F, oil TYPE T/F

Answer / natha

power and distribution transformers, furnace transformers,earthing transformers,rectifier transformers, dry type transformers, reactor transformers,booster,isolation and auto.ct pt are protective relaying devices working similar to these.(induction)

how to find value of resistance when 1 kw consumption for 10 minutes

1 Answers   Manipal Hospital,

what is principle operation of transformer?

9 Answers  

How we calculate airgap between phases & terminal box of the transformer? any formulae.

1 Answers  

why synchronous motor has zero starting ?

8 Answers   NTPC,

What is difference between Earthing, Ground and Neutral?

1 Answers   ABB, ABC, Indo Asian,

if we know Fault level say 25 KA , How to decide busbar size for Distribution network of 1000 Amp Breaker ? Sample Calculation or Farmula Available or not ?

4 Answers   TCS,

bsnl tta exam question

0 Answers  

What is the Full form of Rccb,MCCB,

11 Answers   Marriott, Maruti Suzuki, MCB, PCC, RCCB, Torrent Pharma,

My system is 22kv/3.3kv transformer. client is asking to use NGR, but as we have dedicated Neutral Earthing systems which has a value less than 1 Ohm. So i want solid comparision. Why i should not use NGR as my system is already protected.Can any one help me to get out of this.how should i reply on basis of some great comparision and calculations. Please help

2 Answers   Ariel,

why we use RYB phase sequence? and somewhere we use UVW ? why?

6 Answers   CSPDCL-Chhattisgarh State Power Distribution Company Limited, MUET, TCS,

for 12KW motor which cable size has to select for ex.10 meter.

4 Answers  

Dear sir please mera ye sawaal hai ki rccb ka kya kaam hota hai please answer hindi me dizyega dhanyya waad

1 Answers