Epvlf-34kv Very Low Frequency Test Set Vlf AC Hipot Tester

Product Description

EPVLF-34kV Very Low Frequency test set VLF AC Hipot Tester

General Information:
VLF stands for Very Low Frequency. VLF is generally considered to be 0.1 Hz and lower, its major application is for testing solid dielectric cable, transformers, motors, generators, switchgear, and other electrical apparatus.

A VLF hipot is just an AC output tester but with an output frequency of 0.1 Hz or lower rather than 50/60Hz. Although the frequency is very low, it is still an alternating current with polarity reversals every half cycle. At 0.1 Hz output, rather than 60Hz, it takes 600 times less current and power to apply an AC voltage to a capacitive load, like a long cable.


Feature:

• Adapts microprocessor controlled, can realize voltage set-up/down, measuring and protecting automatically. Manual intervention is allowable even during the auto voltage boosting.
• Touch screen, large LCD can display waveform clearly, and test report can be printed. Built-in printer
• Multiple protections (overvoltage protection, overcurrent protection at HV/LV sides). When the output is beyond the limitation, the control unit will shut itself down within 10ms.
• Easy operation: simple wiring and operation.
• Safe and reliable: the controller and the high-voltage generator are connected at low voltage, photoelectrically controlled, safe and reliable to use.
• Closed-loop negative feedback circuit is adopted. No capacity rising during outputting.
• Large test range: 0.1Hz, 0.05Hz and 0.02Hz multi-frequency selection, large test range.
• Portable design, small size and light weight: it is very convenient for outdoor operation.

 

Peak voltage:	30kV
Output frequency:	0.1Hz, 0.05Hz and 0.02 Hz (selectable)
Fuse:	10A
Maximum load capacity:	1.1μ[email protected], 2.2μ[email protected], 5.5μ[email protected]
Measurement accuracy:	3%
Voltage positive and negative peak error:	≤3%
Voltage waveform distortion:	≤5%.
Working environment:	Temperature: -10ºC-+40ºC, 85%RH.
	Indoor or outdoor
Weight:	35kg
Power supply:	220V 50/60Hz
	The capacitance of the tested object shall not exceed the maximum rated capacitance of the instrument.

 

Model	Rated voltage	Load capacity	Fuse	Weight
EPVLF-34/1.1	34kV (peak 30kV)	0.1Hz ≤1.1µF	10A	Combined type 35kg
		0.05Hz ≤2.2µF
		0.02Hz ≤5.5µF
EPVLF-40/1.1	40kV (peak)	0.1Hz ≤1.1µF	10A	controller:4kg Booster:40kg
		0.05Hz ≤2.2µF
		0.02Hz ≤5.5µF
EPVLF-50/1.1	50kV (peak)	0.1Hz ≤1.1µF	20A	Controller:4kg Booster:45kg
		0.05Hz ≤2.2µF
		0.02Hz ≤5.5µF
EPVLF-60/1.1	60kV (peak)	0.1Hz ≤1.1µF	20A	Controller: 4 kg Booster:50 kg
		0.05Hz ≤2.2µF
		0.02Hz ≤5.5µF
EPVLF-80/1.1	80kV (Peak)	0.1Hz ≤1.1µF	20A	Controller: 4 kg Booster:50 kg
		0.05Hz ≤2.2µF
		0.02Hz ≤5.5µF

More details on VLF testing Equipment 30/40/50/60/70/80/90kV  please contact EPHipot, we have professional tech team to design correctly designed products and systems.