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6 Commissioning
Maschinenfabrik Reinhausen GmbH 2021
65
8209941/00 EN
ECOTAP
®
VPD
®
III 30D-24 / MD&C
2. Use the RAISE/LOWER arrow keys to undertake trial tap-change opera-
tions across the entire range of settings.
3. Check that the control unit records and correctly displays every position.
Otherwise, carry out automatic adjustment again.
The control ensures that the required cooling time of approx. 3 seconds is
maintained after each on-load tap-change operation. During this time, the
control will not accept any tap-change commands.
6.3.6 Switching on medium voltage
After completing the trial tap-change operations, you must adjust the voltage
supply for the control unit supplied through a separate power source. The
voltage supply has to be supplied by the controlled transformer itself during
operation, because this signal is also used as the measurement signal.
1.
DANGER!
Ensure that all cables in the working area are de-energized
and that the shutdown equipment is locked so that it cannot be switched
on again. Otherwise, there is a risk of fatal injury due to electrical voltage
during the subsequent work.
2. Screw on the plug connector for terminal X1 on the control unit.
3. Disconnect wiring to the separate power source from this plug connector.
4. Adjust the voltage supply from the transformer to the specification and the
information in the technical data [
5.
DANGER!
Ensure that the connections PE, N, and L are not inter-
changed. Otherwise, dangerously high voltages could occur at the hous-
ing. Tighten (0.5 Nm) the wiring for the transformer power supply to the
plug connector for X1 in accordance with the supplied connection dia-
gram.
6. The plug connector is coded. Carry out the installation without using force.
Connect the plug connector to terminal X1 correctly according to the de-
vice labeling and screw it tight with 0.5 Nm.
To protect the loads from impermissible fluctuations in voltage, only activate
the load circuits (low-voltage busbar) after all tests are finished.
Содержание ECOTAP VPD 3 30D-24
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