MR VACUTAP VV, Инструкции по установке и вводу в эксплуатацию

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6 Commissioning
Maschinenfabrik Reinhausen GmbH 2020 160 4349322/01 EN VACUTAP
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VV
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6.2.2 Transport with full transformer tank and without oil conservator
Attach a connecting lead between the on-load tap-changer's oil compartment
and the transformer tank if the transformer has been transported with a full
tank and without an oil conservator.
► Establish the connecting lead on the on-load tap-changer head between
connections E2 and one of the free pipe connections R, S or Q.
Figure 167: Connecting lead
In the event of a short-term immobilization time (maximum of 4 weeks) with-
out an oil conservator, it is also sufficient to remove approximately 7 liters of
insulating fluid from the on-load tap-changer oil compartment.
6.2.3 Transport with empty transformer tank
NOTICE
Damage to the on-load tap-changer!
The on-load tap-changer may be subject to oscillating movements during
transformer transportation if the transformer is transported without insulating
fluid and the on-load tap-changer oil compartment is transported with insu-
lating fluid. These oscillating movements can lead to damage to the on-load
tap-changer.
► Completely empty the oil compartment if the transformer is to be trans-
ported without insulating fluid.
► Preserve the oil compartment in the same way as the transformer (for ex-
ample by filling with N2).
6.2.3.1 Emptying oil compartment via pipe connection S
1. De-energize all auxiliary circuits (e.g tap-change supervisory device, pres-
sure relief device, pressure monitoring device).
2. With the stop-cock (slide valve) between oil conservator and oil compart-
ment open, open air-vent valve E1 on the on-load tap-changer head.