4 Commissioning
Maschinenfabrik Reinhausen GmbH 2020
36
5993419/02 EN
VACUTAP
®
VMS
®
4. Loosen the three screws on the terminal box cover and lift off the terminal
box cover.
5. Remove the slotted head screw for potential tie-in and remove the termi-
nal box cover with wire.
6. Press OFF test button.
7. Leave the transformer's danger zone.
8. Ensure that the transformer's circuit breaker cannot be closed.
ð
Passive protection test
9. Press OPERATION test button.
10. Leave the transformer's danger zone.
11. Close the transformer's circuit breaker with isolating switches open and
the transformer grounded on all sides.
12. Press OFF test button.
13. Ensure that the transformer's circuit breaker is open.
ð
Active protection test.
14. Press OPERATION test button to reset the protective relay.
15. Position the wire for the terminal box cover and affix using the slotted
head screw.
16. Attach the terminal box cover and secure with screws.
4.1.4.2 Checking protective relay (RS 2004)
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Check that the protective relay is functioning correctly before commission-
ing the transformer:
1. Ensure that the flap valve is in the OPERATION 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
4.1.5 Checking pressure monitoring device
1. Ground the transformer on the high-voltage side and low-voltage side. En-
sure that the grounding for work connection on the transformer is not re-
moved during testing.
2. Ensure that the transformer remains de-energized during testing.
3. Deactivate the automatic fire extinguishing device.
4. Remove the cover cap.
5. Activate the sensor on the snap-action switch.
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Sensor is in the OFF position.
6. Leave the transformer's danger zone.
