BEHLMAN BL10000 Series, User'S Manual And Technical Reference Manual

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9
SECTION 3
OPERATION
WARNING
This equipment involves the use of voltages and currents that can be hazardous. Only qualified
personnel should be allowed to operate or service it. The top cover(s) must always be in place
during operation.
3.1 CONTROLS AND INDICATORS
Table 1 lists the controls and indicators used on the different models of the AC Source. The table also includes
their function. Figure 3-1 locates these front panel controls and indicators. Also shown are the rear panel
REMOTE PRGM connector, two terminal strips, cooling fan, and a GND stud.
3.2 TO OPERATE THE EQUIPMENT
1) Ensure that line circuit breaker and OUTPUT switch are set to OFF.
2) Connect suitable load across output terminals. (Do not exceed rating of unit.)
3) Set line circuit breaker of power chassis to ON (cooling fan noise should become evident).
4) Rotate VOLTS control to desired voltage. ( for T10D units, set the range switch as required ).
5) Rotate FREQ control to desired frequency.
6) Set OUTPUT switch to ON to energize load.
NOTE
It is permissible to energize a load gradually by setting the OUTPUT switch
ON and rotating the VOLTS control from zero or a low voltage position up
to the voltage desired.
3.3 SHUTDOWN PROCEDURE
1) Set OUTPUT switch to OFF.
2) Set VOLTS control fully counter- clockwise.
3) Set line circuit breaker to OFF.
3.4 ADJUSTMENT OF LINE DROP COMPENSATION AND PHASE ANGLES
General:
The BL series of power supplies provide a means to compensate for load related effects and a means
to trim the phase angles. A “Line Drop Comp” trim is provided for each phase. Phase trim pots are
provided to adjust the angle from phase A to Phase B ( A-B ) and between phase B and phase C (B-C).
The setting of the line drop comp is done at the factory with a full resistive load. The phase angles are
factory set so the B lags A by 120 electrical degrees and C lags B by 120 electrical degrees. These
adjustments should be periodically confirmed. See the following pages for adjustment procedures.