MR OILTAP R, Installation And Commissioning Instructions

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8 Commissioning the transformer at the operating site
Maschinenfabrik Reinhausen GmbH 2015 172 4427410/00 EN OILTAP® R
Checking protective relay
Checking protective relay (RS 2001, 2001/V, 2001/H, 2001/E,
2001/5, 2001/R, 2003)
ü
Check that the protective relay is functioning correctly before commis-
sioning the transformer:
1. Ground the transformer on the high-voltage and low-voltage sides. En-
sure that the working ground connection on the transformer is not re-
moved during testing.
2. Ensure that transformer remains de-energized during testing.
3. Deactivate the automatic fire extinguishing device.
4. Open terminal box of protective relay.
5. Press OFF test button.
6. Leave the transformer's danger zone.
7. Ensure that the transformer's circuit breaker cannot be closed.
ð Passive protection test
8. Press IN SERVICE test button.
9. Leave the transformer's danger zone.
10. Close the transformer's circuit breaker with isolating switches open and
the transformer grounded on all sides.
11. Press OFF test button.
12. Ensure that the transformer's circuit breaker is open.
ð Active protection test.
13. Press IN SERVICE test button to reset the protective relay.
Checking protective relay (RS 2004)
ü Check that the protective relay is functioning correctly before commis-
sioning the transformer:
1. Ensure that the flap valve is in the IN SERVICE position.
2. Leave the transformer's danger zone.
3. Close the transformer's circuit breaker with isolating switches open and
the transformer grounded on all sides.
4. Press OFF test button.
5. Ensure that the transformer's circuit breaker is open.
ð Active protection test
Checking pressure monitoring device
ü Check that the pressure monitoring device is operating properly before
putting the transformer into operation:
8.2
8.2.1
8.2.2
8.3