
4 Commissioning
Maschinenfabrik Reinhausen GmbH 2020
34
4360571/02 EN
VACUTAP
®
VM
®
4. Take an insulating fluid sample from the oil compartment.
5. Record the temperature of the sample immediately after the sample is
taken.
6. Determine dielectric strength and water content at a sample temperature
of 20°C ± 5°C. The dielectric strength and water content must comply with
the limit values specified in the technical data [
4.1.2 Bleeding on-load tap-changer head and suction pipe
4.1.2.1 Bleeding on-load tap-changer head
1. Open all forward valves and return valves in the pipe system.
2. Remove screw cap on air-vent valve E1 on the on-load tap-changer head
cover.
Figure 19: Screw cap
3. Use screwdriver to lift valve tappet on air-vent valve E1 and bleed on-load
tap-changer head.
Figure 20: Valve tappet
4. Seal air-vent valve E1 with screw cap (tightening torque 10 Nm).
Содержание VACUTAP VM I 1002
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