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

How many types of AC current?

8 Answers  

---

DG cranking voltage?

1 Answers  

---

why there is a fault occurs, if a phase wire touches ground.. and the fault not occurs when we connect a bulb between phase and ground..??

1 Answers  

---

Why resistance is not measure in running conditions of motor

1 Answers   Falcon,

---

If not maintained 3 phase clearance,what happened ?

2 Answers  

---

What is mean by power factor?

18 Answers   Shreem Electric Ltd,

---

In CT, burden is 15 VA and protection 5P20,CT ratio is 100:1 then what would be the knee point voltage ?

2 Answers   ERL,

---

What is block diagram?

1 Answers  

---

I am gokul. i finished B.E(EEE). I have 2 years experience in maintenance. But now i have not job, so i am searching. i want any effective courses in Electrical field with related to job and good salary. any one will help to me. please tell?

3 Answers  

---

how to calculate short circuit current for the busbar

1 Answers   HMK,

---

what is appearent power?

3 Answers  

---

How to calculate mf when meter equipment and meter are connected

1 Answers  

---