0.1Hz Vlf Hipot Tester for Cable, Gis

• After-sales Service: Suppor for Lifelong
• Warranty: 1 Year or Extend
• Type: Vlf Hipot Tester
• Accuracy Grade: 0.5
• Load Way: Electronic Load
• Loading Method: Dynamic Load
• Model NO.: hmcop
• Display: LCD
• Control: Computer Control
• Weight: Depends
• Power Source: AC220V
• Output Frequency: 0.1Hz, 0.05Hz, 0.02Hz
• Stability of Frequency: Fluctuation < 0.5%
• Measurement Accuracy: +-3%
• Positive and Negative Voltage Peak Error: <=3%
• Voltage Waveform Distortion: <=5%
• Humidity: <=85%
• Product Name: Vlf Hipot Tester
• Test Voltage Range: 30kv/40kv/50kv/60kv/70kv/80kv
• Standard: IEC
• Certificate: CE, ISO, SGS
• Test Sample: Cable, Transformer, Switchgear, etc
• Transport Package: Wooden Box with Foam Inside
• Specification: Customize
• Trademark: HMDQ
• Origin: Hubei, China(Mainland)
• HS Code: 9022909090
• Production Capacity: 500PCS/Month

Product Description

0.1HZ vlf hipot tester for cable,gis
 

Packaging Details:	standard package for Vlf AC Hipot Tester
Delivery Detail:	vlf ac hipot tester 7 working days after order confirmed

I. VLF test set Introduction
Vlf  test set combines modern advanced digital variable frequency technology and micro computer control together, therefore, it can realize the full automatic voltage boost, stepdown, measurement and protection as well as the manual intervention in the process of automatic voltage boost. The full electronic design ensures the small size and light weight. The big LCD screen ensures the clear and visual display, and can display the output wave form. The printer outputs test reports.Vlf hipot tester is widely used in the withstand voltage test of cables, transformer, circuit breaker, ect.



II. VLF Feature
1.1.1 For ultra-low frequencies with a rated voltage less than or equal to 60kV, a single connection structure (one booster) is used; Ultra low frequencies greater than 60kV adopt a series structure (two boosters are connected in series), greatly reducing the overall weight and enhancing the load-bearing capacity. Moreover, both boosters can be used separately, achieving one machine with multiple functions.
1.1.2 Current and voltage data are directly sampled from the high-voltage side, so the data is accurate.
1.1.3 Intelligent comprehensive protection function: Without setting current and voltage protection values, the instrument can calculate overvoltage and overcurrent protection values based on the size of the sample capacitance and the test voltage value. It can also provide protection against voltage and current mutations, so it can capture discharge situations. The protection action time is less than 20ms.
1.1.4 Using 150kV high-voltage line output, safe and reliable.
1.1.5 Due to the use of a closed-loop negative feedback control circuit, the output has no capacitance rise effect.
1.1.6 The new product has added DC, dielectric loss, and partial discharge testing functions, which can synchronously measure the dielectric loss, capacitance, insulation resistance, and partial discharge of the test object during the withstand voltage test process.

III. VLF tester Technical parameter:
1.3.1 Rated output voltage: 30kV-80kV. Different specifications are shown in Table 1
1.3.2 Output frequency: Automatic frequency conversion range: 0.1Hz-0.01Hz
1.3.3 Carrying capacity: see Table 1
1.2.4 AC voltage resolution: 0.1kV
1.3.5 Voltage accuracy: 3%
1.3.6 AC current resolution: 0.1mA
1.3.7 AC current accuracy: 3%
1.3.8 Voltage positive and negative peak error: 3%
1.3.9 Voltage waveform distortion: 3%
1.3.10 Service conditions: indoor and outdoor; Temperature: -10 ºC to+40 ºC; Humidity: ≤ 85% RH
1.3.11 Input power supply: frequency 50Hz, voltage 220V ± 5% (or frequency 60Hz, voltage 110V ± 5%). If using a micro generator for power supply, a variable frequency generator should be used instead of a regular generator, as the unstable speed of the regular generator can cause abnormal boost and damage to the instrument.
 

Rated voltage	Load		Product structure, weight, and application range
30kV (Peak)	Automatic frequency 0.1Hz-0.01Hz Capacity: ≤ 10 µ F		Controller: 4 kg Booster: 25 kg Used for voltage withstand test of cables and motors up to 10KV
40kV (Peak)	Automatic frequency 0.1Hz-0.01Hz Capacity: ≤ 10 µ F		Controller: 4 kg Booster: 25 kg Used for voltage withstand test of cables and motors up to 10KV
50kV (Peak)	Automatic frequency 0.1Hz-0.01Hz Capacity: ≤ 10 µ F		Controller: 4 kg Booster: 45 kg Used for voltage withstand test of cables and motors up to 15KV
60kV (Peak)	Automatic frequency 0.1Hz-0.01Hz Capacity: ≤ 5 µ F		Controller: 4 kg Booster: 45 kg Used for voltage withstand test of cables and motors up to 25KV
80kV (Peak)	Automatic frequency 0.1Hz-0.01Hz Capacity: ≤ 10 µ F(≤50KV),<=4µF(>50kV)		Controller: 4 kg Booster1: 40KV (below 40kv output use, only use smaller booster 1 40Kv,can not use booster 2 (bigger ) directly ) Boooster2: 40KV (if more than 40Kv, add the booster 2(bigger one  in series ) Used for voltage withstand test of cables and motors up to 35KV
30KV 40KV 50KV 60KV (Integrated unit)	Automatic frequency 0.1Hz-0.01Hz Capacity: ≤ 10 µ F (<=5µF @60KV)		Weight: 40kg Appearance: 400* × three hundred × 500(mm) The purpose of each specification product is the same as above