High Quality Hv Very Low Frequency Device China Wholesale Vlf Hipot Tester Price

• Customization: Available
• After-sales Service: Yes
• Warranty: 1years
• Model NO.: SGDP-VLF
• Model No.: Sgdp-Vlf
• Accuracy: ± (3% of Full Scale +0.5 Kv)
• Humidity: ≤85%Rh
• Output Frequency: 0.1Hz, 0.05Hz, 0.02Hz
• Voltage Waveform Distortion: ≤5%
• Power Supply: AC50 Hz, 220V ±5%
• Transport Package: Wooden Box with Foam Inside
• Specification: 41.00cm * 51.00cm * 90.00cm
• Trademark: Dual Canopy
• Origin: Hebei, China
• Package Size: 41.00cm * 51.00cm * 90.00cm
• Package Gross Weight: 56.000kg

Product Description

SGDP-30-80kv    VLF Hipot Tester

The ultra-low frequency insulation withstand voltage test is actually an alternative method to the power frequency withstand voltage test. We know that when conducting power frequency withstand voltage tests on large generators, cables and other test products, since their insulation layers present a large capacitance, a large-capacity test transformer or resonant transformer is required. Such huge equipment is not only bulky and expensive, but also very inconvenient to use. In order to solve this contradiction, the power department has adopted the method of reducing the test frequency, thereby reducing the capacity of the test power supply. It has been proved from many years of theory and practice at home and abroad that replacing the power frequency withstand voltage test with a 0.1Hz ultra-low frequency withstand voltage test can not only have the same equivalence, but also greatly reduce the size and weight of the equipment. Theoretically, the capacity is about one-five hundredth of the power frequency, and the operation is simple, which has more advantages than the power frequency test. This is why developed countries generally adopt this method. The National Development and Reform Commission has formulated the industry standard "Ultra-low frequency (0.1Hz) withstand voltage test method for cross-linked polyethylene insulated power cables of 35kV and below". my country is promoting this method, and this instrument is developed according to this need in my country. It can be widely used in AC withstand voltage tests of cables and large high-voltage rotating motors.

Specification

Product Introduction

This product combines modern digital frequency conversion technology, adopts microcomputer control, and is automated for boosting, reducing voltage, measuring, and protecting. Because it is fully electronic, it is small in size and light in weight, with a large-screen LCD display, which is clear and intuitive, and can display output waveforms and print test reports. The design indicators fully comply with the power industry standard "General Technical Conditions for Special Test Instruments for Power Equipment, Part 4: General Technical Conditions for Ultra-low Frequency High Voltage Generators", and are very convenient to use. At present, both domestic and foreign countries use mechanical methods to modulate and demodulate to generate ultra-low frequency signals, so there are non-standard sine wave waveforms, large measurement errors, spark discharges in the high-voltage part, and bulky equipment. In addition, the second and fourth quadrants of the sine wave also require high-power high-voltage resistors for discharge shaping, so the overall power consumption of the equipment is relatively large. This product can overcome these shortcomings. 

Technical Specifications

(Custom configurations available upon request.)

Model	SGDP 30-80kv    VLF Hipot Tester
Output frequency	0.1Hz, 0.05Hz, 0.02Hz
Load capacity	0.1Hz maximum 1.1µF 0.05Hz maximum 2.2µF 0.02Hz maximum 5.5µF
Measurement accuracy	3%
Voltage positive and negative peak error	≤3%
Voltage waveform distortion	≤5%
Use conditions: indoors, outdoors; temperature	-10℃- +40℃; humidity: ≤85%RH

CE Certificate & ISO 9001 Certificate

After Sales Service

Standard Warranty: 12-month warranty or lifetime after-sales service
Training: remote operation/maintenance training.

Company Profile

Hebei Dual Canopy Mechanic Electrical Engineering Co., Ltd.

Hebei Dual Canopy Mechanic Electrical Engineering Co., Ltd. is a professional manufacturer focusing on the field of power equipment testing. From the domestic market, it will start to explore the international market by 2025. Since its establishment, the company has always adhered to the corporate philosophy of "pursuing refinement and sincerity". On the one hand, with professional technology as the core driving force, it has deeply engaged in the research and development of power equipment testing technology and services, and expanded the market with precise and reliable technical strength; on the other hand, with sincere service as the foundation, it ensures the safe and stable operation of customers' power equipment, and is committed to becoming a trustworthy testing partner in the power industry.

FAQ

Q: What's the lead time for orders?
A: 5-7 business days after payment

Q: Do you provide after-sales service overseas?
A: Yes, We offer a one-year warranty and lifetime after-sales service.