ABB eVD4, Инструкция по установке и обслуживанию

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8. Putting into service
8.1. General procedures
All the operations regarding putting into service
must be carried out by ABB personnel or by
suitably qualified customer personnel with in-depth
knowledge of the apparatus and of the installation.
Should the operations be prevented, do not force
the mechanical interlocks and check that the
operating sequence is correct.
The operating forces which can be applied for
racking-in withdrawable circuit-breakers are
indicated in paragraph 7.5.
Before putting the circuit-breaker into service, carry out the
following operations:
– check tightness of the power connections to the circuit-
breaker terminals;
– establish the setting of the primary electronic overcurrent
release (if provided);
– check that the value of the power supply voltage of the
auxiliary circuits is between 85% and 110% of the rated
voltage of the electrical accessories;
– check that no foreign bodies, such as bits of packing, have
got into the moving parts;
– check that there is a sufficient exchange of air in the
installation place to avoid overtemperatures;
– also carry out the checks indicated in table T3.
T3
ITEM INSPECTED PROCEDURE POSITIVE CHECK
1 Insulation resistance. Medium voltage circuit
With a 2500 V megger, measure the insulation resistance
between the phases and the exposed conductive part of the
circuit. The insulation resistance should be at least 50
Mohm and in any case constant over time.
Auxiliary circuits
With a 500 V megger (if the apparatus installed allows this),
measure the insulation resistance between the auxiliary circuits
and the exposed conductive part.
N.B. Before carrying out this operation, remove the RBX615
unit (refer to paragraph 5.3.7.) and prevent the terminals leading
to connectors 401 and 402 of the socket (connectors for the
communication card) from being powered. The insulation resistance should be a few
Mohm and in any case constant over time.
2 Auxiliary circuits. Check that the connections to the control circuit are correct:
proceed with the relative power supply. Operations and signals normal.
3 RBX615 unit operation With the auxiliary circuit powered, check that the ready LED
(both on the RBX615 unit and on the HMI) is on. The LEDs are on and not flashing.
4 Manual operating mechanism. Carry out a few closing and opening operations both from the
front of the circuit-breaker and from HMI (see chap. 6).
N.B. If these applications are present, make sure that the
locking magnet on the operating mechanism (-RLE1) is
energized and that the undervoltage release (-MBU) is powered. The operations and relative signals take place
normally.
5
Motor operator
(if provided). Supply the spring charging geared motor at the relative rated
voltage. The spring is loaded normally.
The signals are normal.
With the spring loaded, the geared motor stops.
Carry out a few closing and opening operations both from the
front of the circuit-breaker and from HMI (see chap. 6).
N.B. If these applications are present, make sure that the
locking magnet on the operating mechanism (-RLE1) is
energized and that the undervoltage release (-MBU) is powered. The geared motor reloads the spring after
each closing operation.
6 Undervoltage release
(if provided). Supply the undervoltage release at the relative rated voltage and
carry out the circuit-breaker closing operation. The circuit-breaker closes normally.
The signals are normal.
De-energize the release. The circuit-breaker opens.
The signal changes over.
7 Key lock
(if provided). Open the circuit-breaker, keep the opening pushbutton pressed,
then turn the key and remove it from its seat.
Attempt the circuit-breaker closing operation. Neither manual nor electrical closing takes
place.
Put the key back in and turn it 90°.
Carry out the closing operation. Both electrical and manual closing take place
normally; in this position the key cannot be
removed.
8 Locking electromagnet
(-RLE1) (if provided). With circuit-breaker open, spring loaded, RBX615 unit and
locking electromagnet (-RLE1) not powered, attempt manual
circuit-breaker closing. Closing not is possible.
9 Locking electromagnet on the
circuit-breaker truck (-RLE2)
(if provided). With the circuit-breaker open in the isolated for test position,
the RBX615 unit and locking electromagnet (-RLE2) not
powered, try to rack the circuit-breaker in. Racking-in is not possible.
Supply the RBX615 unit, make sure that the electromagnet
(-RLE2) is energized and carry out the racking-in operation. Racking-in takes place correctly.