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whgdmk12345
1098 Messaggi |
 Postato il 06/06/2022 : 03:55:05
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https://www.mktester.com/high-voltage-tester/vlf-hipot-tester/50kv-very-low-frequency-high-voltage.htmlProducts Introduction#65306;
The power department did some tests to solve some problems. According to theories and test results at home and abroad, the 50KV Very Low Frequency high voltage generator withstand voltage test can solve this problem. Its advantages are that not only the test results are the same, but the instrument size is small and the weight is greatly reduced.
output rated voltage#12289;power fuse#65306;Refer to the following table
Model
Rated Voltages
Load capacity
Fuse
Weight
Useful
VLF-50
50kV
(peak )
0.1Hz,#8804;1.1µF
20A
Control #65306;6#13199;
Body Boost #65306;50#13199;
Used for cable and generator with corresponding voltage
0.05Hz,#8804;2.2µF
0.02Hz,#8804;5.5µF
0.01Hz,#8804;11.0µF
The following features need to indicate in particular:
Over-current protection: design for dual protection of high and low voltage, downtime protection can be accurately set in high-pressure side. Shut down to protection times is within 20 ms when the current of low-voltage sides exceeds reacted current.
High-voltage output protection resistor design in the body boost and it is no need to additional outside resistor.
Closed-loop negative feedback control circuit of high and low voltage.
Precautions:
1.Before the use of this instrument in cable and generator pressure test, should be tested with megohmmeter, megger test no problem, can use the instrument.
2.Fully discharge the tested object with discharge rod before starting up, (the discharge rod using method is: first discharge with the current-limiting discharge end, then ground terminal). Ultra low frequency connection method with two booster:When using the booster I alone (test voltage is 30 KV or less), instrument control output I must be connected to booster I, don't connect control output II. When the booster I and booster II are used in series (test voltage is 80 KV or less), instrument control output I must be connected to booster I, and instrument control output II must be connected to booster II, absolutely not inversely connection! Otherwise the instrument or tested object will be damaged.
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50KV Very Low Frequency High Voltage Generator
