Siemens L-828 Manual page 41

L-828 CCRs LC-Type (4, 7.5, and 10 kW/6.6 A/60 Hz)
Open-Circuit Test
(contd.)
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3. Turn on input power to the regulator.
4. Turn the rotary switch to the lowest brightness position (B1 for 5-
Step, B10 for 3-Step). The open-circuit protective device should
automatically de-energize the regulator in less than 2 seconds.
5. Turn the rotary switch to OFF. The open-circuit protective device
should reset.
6. Turn the rotary switch to position 1. The regulator should turn
on and then de-energize in less than 2 seconds.
7. If regulator operation is satisfactory, turn rotary switch to OFF,
and turn off disconnect switch or main circuit breaker before
reconnecting the load.
8. After the load has been reconnected, turn on input power to the
regulator.
96A0104B
Issued 6/02
Maintenance
Page 5-4