Factory Low Price Customizable AC/DC Withstand Voltage Vlf Ultra Low Frequency

• Customization: Available
• After-sales Service: Warranty
• Warranty: 1 Year
• Model NO.: XHDP series
• Usage: Coaxial Cable Tester, Digital Cable Tester, Vlf AC Hipot Tester
• Power: Electricity
• Certification: CE, ISO
• Customized: Customized
• Color: Black
• Model Number: Xhdp Series
• Output Voltage: 30kv/50kv/60kv/80kv/90kv Optional
• Output Frequency: 0.1Hz, 0.05Hz,0.02Hz Automatic Frequency Conversio
• Accuracy: 3%
• Power Supply for Work: 50/60Hz, AC220V±10%
• Certificate: ISO, CE
• Transport Package: Wooden Box with Foam Inside
• Trademark: XZH TEST
• Origin: China Xi′ an
• Production Capacity: 1000

Product Description

Product Description

This XHDP Series VLF AC cable hipot tester adopts digital frequency conversion technology, single-chip microcomputer control,voltage boost, buck, measurement, protection completely automatic. Due to the full electronic, so small size and light weight, the use of large screen color touch display, clear and intuitive, simple operation, display output waveform. The design index conforms to the national standard of "General Technical Conditions of Ultra-low frequency high voltage generator". The main features are as follows:

Detailed Photos

Product Parameters

Specification
Rated voltage	Carrying capacity	Application range	Power supply Fuse	Remark
30kV(peak)	Automatic frequency change:0.1Hz-0.01Hz On-load capacity:<=10µF	Used for voltage test of cables and motors within 10KV	8A	Customizable touch screen with USB port
40kV(peak)	Automatic frequency change:0.1Hz-0.01Hz On-load capacity:<=10µF	Used for voltage test of cables and motors within 10KV	8A
50kV(peak)	Automatic change frequency: 0.1Hz-0.01Hz Load capacity: <=6µF	Used for voltage test of cables and motors within 15KV	10A	Customizable touch screen with USB port
60kV(peak)	Automatic change frequency: 0.1Hz-0.01Hz Load capacity: <=5µF	Used for voltage test of cables and motors within 25KV	20A	Can be customized with dielectric loss tester
80kV(peak)	Automatic change frequency: 0.1Hz-0.01Hz Carrying capacity: <=6µF(within 50kV), <=4µF(above 50kV)	Used for voltage resistance test of cables and motors within 35KV	30A	Customizable touch screen with USB port customized with dielectric loss tester

1. Output rated voltage: see Specification
2. Output frequency: 0.1Hz, 0.05Hz, 0.02Hz
3. Load capacity: 0.1Hz maximum 1.1µF
0.05Hz maximum 2.2µF
0.02Hz maximum 5.5µF
4. Measurement accuracy: 3%
5. Voltage positive and negative peak error: ≤3%
6. Voltage waveform distortion: ≤5%
7. Use conditions: indoor and outdoor; temperature: -10ºC∽+40ºC; humidity: ≤85%RH
8. Power fuse: see Specification
9. Power supply: frequency 50Hz, voltage 220V±5%.• Communication interface: RS232;
 • Power supply mode: charging AC 220V±10%, 50Hz/60Hz; built-in 5200mAH lithium battery power supply;

Technical parameter

1.Ultra-low frequency with rated voltage ≤60kV adopts a single-unit structure (one booster); ultra-low frequency above 60kV adopts a series structure (two boosters in series), which greatly reduces the overall weight and enhances the load capacity. The two boosters can be used separately to achieve multiple uses of one machine.

 

2.Current and voltage data are directly sampled from the high-voltage side, and the data is accurate.

 

3.Intelligent comprehensive protection function: There is no need to set the current and voltage protection values. The instrument calculates the overvoltage and overcurrent protection values according to the test capacity and test voltage value, and can protect against voltage and current mutations, so as to capture the discharge situation in time. The protection action time is less than 20ms.

4.150kV high-voltage incoming line output, safe and reliable.

5. Due to the use of closed-loop negative feedback control circuit, there is no capacity increase effect on the output.

Main structure of ultra-low frequency high voltage power supply(VLF hipot tester)

For the VLF hipot tester with a rated voltage below 50kv, a booster is used, which is called the single-coupled ultra-low frequency, and its structure and components are described in the following figure:
For VLF hipot tester with rated voltage above 50kv, two boosters are used in series, which is called series ultra-low frequency, and its structure and components are described in the following figure:

Connection method for ultra-low frequency withstand voltage test

(1) The connection method of ultra-low frequency voltage withstand test when the two-stage booster is connected in series is as follows:
(2)Below 50kV single-link ultra-low frequency voltage test connection mode is as follows:
Test interface reference

The following photos are the physical pictures of the 50kV VLF hipot tester

Packaging & Shipping