Very Low Frequency Tester for AC Withstand Testing for Cables (VLF)

• Customization: Available
• After-sales Service: Response in 12 Hours
• Warranty: 12 Months
• Model NO.: VLF
• Connectors: USB
• Test Mode: Instant Test
• Usage: Network Cable Tester
• Test Region: Forming Cable
• Cable Type: Shielded
• Power: Electricity
• Certification: ISO9001
• Customized: Customized
• Color: Black
• Test Method: Very Low Frequency (Vlf)
• Output Frequency: 0.1Hz, 0.05Hz, 0.02Hz.
• Accuracy: ± (3% of Full Scale +0.5 Kv)
• Voltage Waveform Distortion: ≤5%
• Power Supply: AC50 Hz, 220V ±5%
• Rated Voltages: 30kv, 40kv, 50kv, 60kv, 80kv
• Fuse: 10A, 20A, 25A
• Application: Cable and Generator Testing
• Cable Sample: 35kv and Below
• Weight: 36kg~86kg
• Printer: Inbuit
• Display: LCD
• Stock: Yes
• Test Object: Cable, Generator etc
• Function: Measure Withstand Voltage of Cables
• Transport Package: Plywood Case
• Specification: Seperated
• Trademark: AI
• Origin: China
• HS Code: 9031809090
• Production Capacity: 50 Sets/Month

Product Description

I. Introduction:

This Very Low Frequency (VLF) Tester combines the advanced technology of modern digital conversion, fully computer control, automated boost, buck, measurement and protection.Human intervention can carried out during the automatic step-up process.
The VLF test equipment is suitable for testing cables, transformers, switchgear, Rotating machinery, and other electrical apparatus.
 

II.Advantages

★     Small sizes and light weight

★     large-screen LCD (clear and intuitive)

★     Test report can be printed out with inbuilt printer

★     Meet the power industry standards
★     Easy operation


III.Main Features

★    Data of current and voltage are obtained directly through the sampling of high-pressure side and it is true and accurate.

★    Over-voltage protection: the Very Low Frequency (VLF) Tester will shut down to protection within 20 ms when the output voltage is exceeding limiting values of setting.

★    Over-current protection: design for dual protection of high and low voltage, downtime protection can be accurately set in high-pressure side.The Very Low Frequency (VLF) Tester will be shut down for protection and the action time is less than 20 ms when the current of low-voltage sides exceeds reacted current.

★    High-voltage output protection resistor design in the body boost and additional outside resistor is not needed.

★    Closed-loop negative feedback control circuit of high and low voltage.
 

III. Technical Specifications of Very Low Frequency (VLF) Tester :

1, Output frequency: 0.1Hz,0.05Hz,0.02Hz.

2, Accuracy: ± (3% of full scale +0.5 KV)

3, Voltage waveform distortion: ≤5%

4, Condition of use: indoor, outdoor, temperature:  -10ºC∽+40ºC, humidity :≤85%RH

5, Power supply: AC50 Hz, 220V ±5%

         

Model	Rated Voltages	Load Capacity	Fuse	Weight	Application
VLF-30	30kV (peak )	0.1Hz,≤1.1µF	10A	Control :6KG Booster :30KG	10KV Cables,Generator
		0.05Hz,≤2.2µF
		0.02Hz,≤5.5µF
VLF-40	40kV (peak )	0.1Hz,≤1.1µF	20A	Control :6KG Booster :50KG	15.75KV Cables,Generator
		0.05Hz,≤2.2µF
		0.02Hz,≤5.5µF
VLF-50	50kV (peak )	0.1Hz,≤1.1µF	20A	Control :6KG Booster :50KG	15.75KV Cables,Generator
		0.05Hz,≤2.2µF
		0.02Hz,≤5.5µF
VLF-60	60kV (peak )	0.1Hz,≤0.5µF	25A	Control :6KG Booster I:30KG Booster II:33KG	18KV and below  Cables,Generator
		0.05Hz,≤1.0µF
		0.02Hz,≤2.5µF
VLF-80	80kV (peak )	0.1Hz,≤0.5µF	25A	Control :6KG Booster I:30KG Booster II:50KG	35KV and below  Cables,Generator
		0.05Hz,≤1.0µF
		0.02Hz,≤2.5µF

Above model is the common requirement. It also can be customized for different voltage and load capacity.

 

Factory overview

Customer Feedback 

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FAQ

1.What's the delivery time?
About 10 working days.

2.What's your payment terms?
30% paid by T/T in advance,70% paid by by T/T before shipping.

3.What's your guarantee terms?
The warranty of all products is 1 year.During this period,we are responsible for all faults caused by us.And we can supply life-long technical support. 

4.Can you supply training?
We can supply training in our factory and online training for free.If onsite installation and training are required,please pay for tickets,accommodation and salary USD150/Day for every person.