Answer / s.sheikhussain

TYPES OF TESTING IN TRANSFORMER FOLLOWING TEST
1) IR
2) PI VALUE
3) Magnetic CORE balance
4) MAGNTISING CURRENT
5) Ratio test
6) Vector group
7) SHORT CIRCIT TEST
8) BDV
9) WINDING RESISTANCE
10)TAN DELTA
11)MARSHALLING BOX SCHEME CHECKING
12) Visual inspection
13) Tap changer tests
14) Special tests to see the condition of the dielectric
strength

Answer / rajendran

The depth of the testing procedures adopted depending upon
the application where it is installed and various service
conditons of the transformer..... however following are
basic tests which can not avoided...

1) IR
2) Ratio test
3) Vector group
4) Magnetic balance
5) Visual inspection
6) Tap changer tests
7) Special tests to see the condition of the dielectric
strength
8) DSA - dissolved gas analysis "(Predicative type)

thanks

a starter used for squirrel cage induction motor?

0 Answers  

---

in a solar power plant,we are going to step up the voltage 350V to 33kv, and to 132kv GSS. i want to ask that if it is possible that 315v/33kv is not possible because we also use 315v/11kv. or it should be 415v/33kv? is it effects generation or losses?  the second question is-generation is depends on LV winding? or LV winding design for generation voltage?

0 Answers  

---

What do you mean by transformation ratio of instrument transformer?

0 Answers  

---

What type of DC motor would you see for a lift?

0 Answers   Ericsson,

---

What is IGBT?Where it is used? What is the difference between IGBT and Thyristor?

5 Answers   AC, Formo Plastic, HBL Power Systems, SECL,

---

---

What is different between hypo test and megger test

2 Answers   ABB,

---

what is B , c & d curves in MCB characteristics i e Full Form of B , C & D . sir please give me answer

1 Answers   NCC,

---

To measure insulation resistance of 11KV cable between core & armour, what should be the test voltage & duration?

4 Answers  

---

For 35 HP motor how much amount of capacitor should be on in kvr to reduce the current bill

1 Answers  

---

Whether amorphous core transformer is commercialized or not:Name of company making amorphous core transformer and what are different rating?

0 Answers   DAE,

---

what is mean by hvdc transmission technology .what is principle of hvdc transmission and technic of hvddc transmission .

1 Answers  

---

how determine base of given number like 302/20=12.1

2 Answers  

---