Application:
According to IEC standard, Very-low frequency high voltage generator can be used for no more than 35KV XLPE cable voltage withstand test. VLF301-30KV Very-low frequency portable High Voltage Test Set ,composed of its controller and high voltage generator, is mainly used for voltage withstand test of XLPE cable , also can test power capacitor ,generator. This piece of product with combination of advanced technology of digital frequency conversion utilizes microprocessor control to realize the completely automatic test.
Product Features:
v Adopt advanced technology of digital frequency conversion
v Output frequency: 0.1Hz, 0.05Hz, 0.02Hz
v No need external protection resistance at HV output terminal
Output voltage will not be affected by capacitive current during test because of closed-loop negative feedback control circuit
v Overvoltage & overcurrent protection, protective action time is less than20ms,high safety for personnel & equipment
v Multiple frequency selection of 0.1Hz,0.05Hz and 0.02Hz
v LCD display ,data storage and print functions
v Small size,light weight ,easy to operate ,suitable for outdoor
Technical Specifications:
v Output: sine wave form,0~ 30KV(peak value), continuously adjustable, output by shielded cable
v Output frequency: 0.1Hz, 0.05Hz, 0.02Hz
v Load range: 0.1Hz, ≤1.1μF ; 0.05HZ,≤2.2μF ;0.02HZ ≤5.5μF;
v Input:220V±5%,50HZ
v Measurement accuracy: 1%
v Positive and negative voltage peak errors: ≤ 3%
v Voltage wave form distortion: ≤ 5%
v Power supply fuse tube:5A
v Time range:0-99min
v operation condition: Indoor and outdoor;
v Temperature: -10C--+40C;
v Humidity: ≤ 85%RH 7. Power supply: AC50Hz, 220V ±5%
v Controller:356mm×280mm×220mm, 4kg
v High voltage generator:320mm×188mm×360mm,25kg
Reference connection diagram
Note: If the test object capacitance is less than 0.05μF, then need to parallel the auxiliary 0.1μF capacitor for assisting output. Because if test object capacitance is too small, the output waveform will not be normal
Order Information
Item Art. No.
Controller 1 piece
High voltage generator 1 piece
Optional for Order
Model
|
Voltage range
|
Frequency
|
Maximum load
|
VLF302-50KV
|
0~ 50KV
|
0.1HZ, 0.05HZ, 0.02HZ
|
5.5μF
|
VLF303-80KV
|
0~ 80KV
|
0.1HZ, 0.05HZ, 0.02HZ
|
2.5μF
|