0.1Hz Ultra-Low Frequency High Voltage Generator/Cable AC Withstand Voltage Tester

• After-sales Service: Online
• Warranty: 1 Year
• Type: High Voltage Generator
• Control: Computer Control
• Weight: 0-100Kg
• Power Source: AC220V
• Model NO.: KDZD
• Transport Package: Plywood Case
• Trademark: LONROY
• Origin: China
• HS Code: 9024800000
• Production Capacity: 200pieces/Month

Product Description

0.1Hz ultra-low frequency high voltage generator/Cable AC withstand voltage Tester

Product introduction

This product incorporates modern digital frequency conversion technology, adopts microcomputer control, automatic voltage boost, buck, measurement and protection. Because of the electronic, so small size and light weight, large screen LCD display, clear and intuitive, and can display output waveform, print test reports. The design index is in line with the "General technical conditions for special test instruments for power equipment, Part 4: General Technical Conditions for Ultra-low frequency high voltage generator" power industry standard, easy to use. At present, mechanical methods are used at home and abroad for modulation and demodulation to produce ultra-low frequency signals, so there is a sine wave waveform is not standard, the measurement error is large, the high voltage part has spark discharge, the equipment is bulky, and the two and four quadrics of the sine wave also need high-power high-voltage resistance for discharge and shape, so the overall power consumption of the equipment is large. This product has no such shortcomings, in addition, there are the following characteristics need special explanation:

1. Current, voltage, waveform data are directly sampled from the high voltage side, so the data is accurate.

2. 20ms;

3. With overcurrent protection function: designed for dual protection of high and low pressure, the high pressure side can be accurate shutdown protection according to the set value; When the current on the low voltage side exceeds the rated current, the shutdown protection will be performed, and the operation time is less than 20 milliseconds.

4. The high voltage output protection resistor is designed in the booster body, so there is no need to connect another protection resistor outside. 5. Due to the use of high and low voltage closed-loop negative feedback control circuit, the output has no capacity rise effect.

0.1Hz ultra-low frequency high voltage generator/Cable AC withstand voltage Tester

Output rated voltage:
Rated voltage	Carrying capacity	Power source Safety tube	Product structure, weight
30kV (peak value)	0.1Hz,≤1.1µF	10A	Controller: 4kg Booster: 25kg
	0.05Hz,≤2.2µF
	0.02Hz,≤5.5µF
50kV (Peak value)	0.1Hz,≤1.1µF	10A	Controller: 4kg Booster: 35kg
	0.05Hz,≤2.2µF
	0.02Hz,≤5.5µF
80kV (peak value)	0.1Hz,≤1.1µF	15A	Controller: 4kg Booster: 50kg

Output frequency	0.1Hz, 0.05Hz, 0.02Hz
Load capacity	0.1Hz, Max. 1.1µF; 0.05Hz, Max. 2.2µF; 0.02Hz, up to 5.5µF
Measurement accuracy	3%
Voltage positive, negative peak error	≤ 3%
Voltage waveform distortion	≤ 5%
Conditions of use	outdoor;  Temperature: -10ºC ~ +40ºC; Humidity: ≤ 85%RH
City power supply	frequency 50Hz, voltage 220V±5%. If the portable generator is used for power supply, the generator requirements are: frequency 50Hz, voltage 220V±5%, power should be greater than 3KW, and a power of not less than 800W resistance load (such as electric furnace) in parallel at the output end of the generator, in order to stabilize the operating speed of the generator. Otherwise the instrument will not work properly.

0.1Hz ultra-low frequency high voltage generator/Cable AC withstand voltage Tester

Select the appropriate product specifications according to the subject's orientation.

When used, the electrical capacity of the test shall not exceed the rated electrical capacity of the instrument. The capacitance of the sample is too small, which will affect the output waveform. If it is less than 0.05µF, the instrument will not be able to output normally, in which case a 0.05µF capacitor (provided by our company) can be connected to assist the output. The following is the power capacity of some devices for users' reference.

Single-phase capacity to ground of different generators

	pyroelectricity			hydroelectricity
Generator capacity(MW)	200	300	600	85	125-150	300	400
Single-phase capacitance to ground (µF)	0.2-0.25	0.18-0.26	0.31-0.34	0.69	1.8-1.9	1.7-2.5	2.0-2.5

Capacity of crosslinked polyethylene insulated single-core power cable (µF/km)

Cross section   Electric capacitance mm2   µF/Km       Voltage kV	16	25	35	50	70	95	120	150	185	240	270
10	0.15	0.17	0.18	0.19	0.21	0.24	0.26	0.28	0.32	0.38	-
35	-	-	-	0.11	0.12	0.13	0.14	0.15	0.16	0.17	0.19

Test current estimation method:

Calculation formula: I = 2πfCU