Defect : exhaust fan did not function
- exaust fan is use to absorb hot air in the room to out.
- it cannot function because it did not connect to supply
- no calbe connected to it. supposely, there are cable connect for supply
Location : Generator Transformer 1B
Function GTx : to step-up voltage from 15kV to 275kV
OLTC (on load tap changer) : to change transformer output voltage
Breakdown Voltage (BDV) test
- to check either the oil is good insulator or not.
- in the transformer, oil is use as a insulator.
- test : inject 60kV to the oil
- the oil already put inside the machine
- it has a specific machine for this test
- the test is repeated 5 to 6 times. to get the accurate result.
- gap 2.5mm
oil put inside the white box
No comments:
Post a Comment