OCEM AUGIER energy DIAM3100 Series, Установка и обслуживание

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DIAM3100©2012 AUGIER SA.
III-45
III.2 TESTS
III.2.1 SHORT-CIRCUIT TESTS

DO NOT carry out this test if there is any doubt about the operation of the CCR, or if there is a fault or
breakdown.
1. Switch off the CCR from the power.
2. Completely disconnect the lighting loop.
3.
Short circuit terminals “HV1” and “HV2” on the outputs,
4. Connect the CCR to the power.
5.
Put the CCR in “Local” mode.

The CCR starts up and the output current is displayed on the front panel.
6. Progressively increase the brightness levels using the selection buttons while systematically checking
the current value shown by the numeric display, maximum brightness being fixed at 6.6A.
7. Decrease the brightness levels again then stop the CCR.
8. Disconnect from the power, connect the Lighting loop, and eventually re-adjust the load tapping.

If there is any problem (e.g. tripping out, Overcurrent), do not repeat the tests: check the connections
again (ground, circuit board terminals, fibre optic connections, etc) and check the state of the thyristors
before starting up again.
III.2.2 OVERLOAD TESTS
This test can be carried out as part of a breakdown investigation, to allow a device already in service to be
put back into operation without knowing its state, and without damages for the lighting loop.
Move the tapping cable of the load plate so that the maximum power of the CCR would be much less than
the loop power. This ensures that, even for a direct short-
circuit of the thyristors (or equivalent: “full wave”
voltage on the load terminals, boards non-operational, etc) the current delivered by the equipment will always be
lower than 6.6A.
For example:
6.5VA CCR with a load of 2.5kVA; optimum load adaptation is 4/8. To place it in overload state and test the
device, put them in position 2/8. On start-up, the correct adjustment of the first brightness levels can be
ascertained (up to a current of about 5A), but in case of failure, the device cannot deliver more than about 5A in
this position.
For example If the thyristors are faulty (short-circuit), the CCR will deliver 5A as soon as it is started up
whatever the brightness setting (no danger of Overcurrent into the lamps), which will show up a fault in
regulation, control or the thyristors.
Sum-up :
In order to achieve an “overload test”, DECREASE the output tapping of the CCR, in order to
OVERLOAD the CCR

See load adaptation table, paragraph II.3.1
III.2.3 OPEN-CIRCUIT TEST
Physically disconnect the loop (or remove jumpers of the Cut-out option) and start the CCR: the device
should stop after about 0.3s (running time) with the fault indication.