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VIII.Supplementary Explanation
HZTC series control station is another set of equipment of light test transformer, it has
characteristics, perfect capacity, beautify appearance, small volume, light weight, beside,
also has the function of switch on and timing, which manual explanation is same as TC
control station.
1
、
Over-current rated value= Over-current relay dial reading
×K
Among which, K is as a state value of change/excise (-SA) switch of current power,
respectively for as 1, 2, ∞., K of the switch in ×1
、
×2 shift is as 1 and 2 respectively, excise
shift is as +∞(in normal condition without using it to avoid damaging the equipment due to
lost the protection for transformer.
2
、
Electric control station is normally above 30KVA. As for client convenience, it
adopts the methods of increasing voltage, decreasing voltage. The method of voltage
increasing is same as manual, firstly fast, secondly slow. When the required voltage of
increasing voltage is coming, don’t press the button forever, it’d better loose a little (press
and loose by turns). During the voltage decreasing, press the button of decreasing voltage
until charcoal brush back to zero, then the zero signals light is on, you can press the
button of stop. Finally, shut off the general switch (air switch).
3
、
Panel drawing of control station and connection drawing, see the annex.
4
、
This control station could measure the high voltage leak current of the tester.
Please measure the high voltage leak current after accomplish the test of the AC voltage
during in using to prevent occurring short circuit phenomenon and produce high voltage
which exist dangers for operator. The specific procedure is as following:
First, connect the back connection board of the control station in specific wire, and
then carry out the AC voltage test. Second, link the high voltage end part of the control
station and test transformer (see the wiring sketch drawing in the next page) namely could
read the value of the high voltage current.