Answer / ramya

current transformer ,potential transformer,

Answer / thamizh

AMMETER TO FIND OUT COPPER LOSS WHEN IT IS IN S/C
VOLTMETER TO FIND OUT THE CORE LOSS WHEN IT IS O/C

Answer / jagadisha.n. bmsit

There are many instruments used in transformer for the
protection purpose like
1) Energy meter:
To measure I, V,pf,Energy demand, phase
shift etc....

2) Thermocouple to measure winding temperature

3) Oil level indicator

Answer / saran.then

power transformer ,current transformer ,potential
transformer

Answer / suresh

multimeter
ct pt thermometer

I have a 25 KVar capacitor bank at my facility.How to check the capacitor bank ??

2 Answers  

why some harmonics are disturbing while the others not

1 Answers  

Dear All, In a 400V power system, ratio of three current transformers installed incoming switchgear is 4000/1. Maximum three phases short circuit current of this system is 48kA. One CT is installed on neutral of upstream transformer (6/0.42kV, solidly earthed) for 51G protection. Would you please inform me about the correct CT ratio of this current transformer (on neutral)?? Thanks a million

2 Answers  

what is difference between 2 pole structure and 4 pole structure in transformer yard

0 Answers   Hospira,

define the active power?

0 Answers  

What is the full form of AND,OR and other logic gates

7 Answers  

Why we use Carbon & graphite mixxed brushes in the DC motor?

6 Answers  

What do you mean by power transformer?

0 Answers  

Name different types of fault and which instrument is used to measures earth,short,open cicuit fault?

6 Answers   NTPC, Vijai Electricals,

use of PIR in ehv breaker

0 Answers  

Why Lightning arrester used? Can we use piece of iron as a core material of transformer, if No, why? In CRGOSS material what is meaning of cold rolled grain oriented? Why Impegrenation of Transformer is done? Properties of Insulator? what is phase angle? Testing of transformers (Routine & Monthly)?

6 Answers   NTPC,

why we use iron corn in transformer instead of wooden core

12 Answers