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

why we use delta connection in transformer

2 Answers   UPPCL,

---

How can get C license i am complete I.T.I electrician trade and 10 years experiance this field and i complete the dee from ksou by distance mode of this year.ksou means karnataka south open university but i want Tnelb license

2 Answers   C License,

---

If you don’t have coal, salt and copper, then how would you earth your connection temporarily at a camp site.?

0 Answers   Bajaj,

---

why capacitor bank always connected in delta,why not in star to a system?

15 Answers   NHPC, NTPC,

---

how netral CT is selected (including its details specification)

8 Answers   ABB, ABC, dbpl, Mecon, Shree Engineering, Tapasya Transformers,

---

what is excitation system explain in detail with its working?

1 Answers   Toshiba,

---

In 3phase power= Root*3*v*i*cos@ What is the power in 2phase....??? and Derive it

3 Answers   Essar,

---

What effect does a very low impedance have on the Voltage regulation? On the short-circuit current?

0 Answers  

---

what is meant by tranformer impedance?

0 Answers   Synergy,

---

Please brief what is sinewave

0 Answers   Deccan Cements,

---

What is the generating voltage of a power station consided generally?

20 Answers   L&T,

---

How to Prepare preventive maintenance shedule of machine tool.

0 Answers   Concast,

---