HUAYI: Professional VLF Hipot Tester Manufacturer
Wuhan HUAYI Electric Power Technology Co.,Ltd. (HUAYI for short) is a professional manufacturer in China, researching and manufacturing electric testing equipment. HUAYI insist developing and marketing independently, and make efforts to improve the products quality, reduce cost, and improve efficiency.
Why Choose Us
Rich Experience
The company was established in 2005 and has more than ten years of professional experience. It is one of the earliest manufacturers of high-voltage testers in China.
Professional Technology Support
Specialize in testing and solutions for more than 18 years. Own experienced engineers. Professional on delivery, installation, debugging, and training.
ISO Certification
We have a professional R&D technical team and strict quality control to ensure safety, accuracy and efficiency. Passed ISO9001 certification and obtained relevant patent certificates.
24 hours After-sales
Professional after-sales service, paying attention to customers' feedback about products; Providing solutions within 24 hours, if the customers have any problem; Act quickly and efficiently.
Product Parameter
|
Model |
Rated voltage |
Load capacity |
Power Fuse |
Reference weight |
|
VLF-30 (30KV) |
30kV/20mA (Peak value) |
0.1Hz,≤0.5µF~1.1µF |
5A |
Controller:4kg Booster:25kg |
|
0.05Hz,≤0.5µF~2.2µF |
||||
|
0.02Hz,≤0.5µF~5.5µF |
||||
|
VLF-50 (50KV) |
50kV/30mA (Peak value) |
0.1Hz,≤0.5µF~1.1µF |
7A |
Controller:4kg Booster:50kg |
|
0.05Hz,≤0.5µF~2.2µF |
||||
|
0.02Hz,≤0.5µF~5.5µF |
||||
|
VLF-60 (60KV) |
60kV/30mA (Peak value) |
0.1Hz,≤0.5µF |
9A |
Controller:4kg Booster 1(30kV):25kg Booster 2(30kV):25kg |
|
0.05Hz,≤0.5µF~1µF |
||||
|
0.02Hz,≤0.5µF~2.5µF |
||||
|
VLF-80 (80KV) |
80kV/30mA (Peak value) |
0.1Hz,≤0.5µF |
12A |
Controller:4kg Booster 1(30kV):25kg Booster 2(50kV):50kg |
|
0.05Hz,≤0.5µF~1µF |
||||
|
0.02Hz,≤0.5µF~2.5µF |
Video
Advantages of VLF Hipot Tester
Enhanced Safety: When using a VLF hipot tester, the amount of current flowing through the test object is significantly reduced. This reduction in current minimizes the risk of damage to the insulation and the potential for electrical shock to the operators.
Early Detection of Insulation Defects: One of the most significant long - term benefits of using a VLF hipot tester is its ability to detect insulation defects at an early stage. This not only prevents costly downtime but also extends the lifespan of the electrical equipment.
Cost - Effectiveness: VLF hipot testers are more energy - efficient compared to traditional high - frequency testers. Since they operate at a very low frequency, they consume less power during the testing process. Over time, this can lead to significant savings on electricity bills.
Portability: The portability of VLF hipot testers allows for on - site testing, eliminating the need to transport heavy and bulky equipment to a testing facility.
Improved Equipment Performance: Regular testing with a VLF hipot tester can improve the overall performance of electrical equipment. By detecting and rectifying insulation defects early, the electrical equipment can operate more efficiently.
Applications of VLF Hipot Tester
Utility and Power Generation
Power plants and utility companies use cables to transmit electricity at massive voltages. VLF hipot testers assist in confirming that these long cables safely handle the load. Performing regular tests before problems develop helps avoid huge power outages.
01
Manufacturing Facilities
Assembly plants and other big factories make cables for internal electrical systems. VLF hipot testers check these long cables to ensure production machines have the power they need. Catching any problems with the wiring means machines stay up and running, resulting in higher output levels.
02
Transportation Systems
Subways, trains, and some buses rely on electric cables to power the entire system. VLF hipot testers examine these cables to ensure trains can run safely and on time. This helps avoid delays for passengers and stops shutdowns.
03
Ship and Aerospace
Advanced electronics are found inside large ships, boats, and planes. VLF hipot testers confirm the long cables can withstand extreme conditions like storms or high altitudes. Testing cables before flights or journeys keeps all the internal systems working.
04
Data Centres
Big data centres have thousands of cables powering computers and servers. VLF hipot testers check that these cables can handle the electricity needed to keep everything online. Catching issues with the wiring early prevents downtime, which can cost a lot.
05
VLF hipot testers apply a low-frequency AC voltage (typically in the range of 0.1 Hz to 0.1 kHz) to the cable or equipment. The advantage of using VLF is that it allows for testing of long cable lengths and large systems with less power consumption and heating effects compared to higher frequency or DC testing.
DC hipot testers apply a high DC voltage (typically in the range of 5 kV to 100 kV or more) to the cable or equipment. The test stresses the insulation by applying a high-voltage DC potential, which simulates a worst-case scenario and is used to identify insulation weaknesses or breakdowns under high voltage conditions.

Usage Requirements

Clean and Dry the Test Area: Make sure the area where the test will be conducted is clean and dry. Remove any standing water or wet materials.
Inspect the Tester: Thoroughly inspect the VLF hipot tester for any signs of damage or moisture ingress. Check the cables, connectors, and electrodes for corrosion or other issues.
Select the Right Test Parameters: In high - humidity conditions, you may need to adjust the test parameters. However, be careful not to exceed the rated voltage of the test object.
Proper Grounding: Ensure that the VLF hipot tester are properly grounded. A good ground connection helps to dissipate any stray currents and reduces the risk of electrical shock.
Check for Leakage Currents: Keep an eye on the leakage current readings. If you notice a significant increase in the leakage current, it could be a sign of surface leakage due to high humidity.
Clean and Store the Tester Properly: Clean the VLF hipot tester to remove any moisture or contaminants. Dry it thoroughly before storing it in a dry place. You can use a soft, dry cloth to wipe the tester's surface.
How To Cooperate With Us
Inquiry: You can contact us online or sending us an inquiry. Please provide the details of your requirements as clear as possible. So we can send you the offer at the first time.
Phone Number: (+86)-18062012971/whatsapp:+8618064115448
E-mail: sales@sinohipot.com/ tina@sinohipot.com
Custom Plan Development: During the consultation, we’ll evaluate your specific requirements and together, craft a custom quality assurance plan tailored to your needs.
Agreement and Setup: Once you’re satisfied with the plan, we’ll finalize the details and set up everything needed to get started.
Quality Assurance Implementation: Our team will then implement the quality assurance protocols on your selected products or processes.
Delivery: Deliver cargos by sea or by air according to requirement.
Packaging and Delivery
|
Packing detail: |
Packing with wooden cases, provide different solutions of shipping way. |
|
Payment: |
We accept many payment term, such as T/T, Western Union, L/C. |
|
Warranty period: |
One-year warranty, Installation, and commissioning of specific products. |
|
Delivery time: |
Most of our products are in stock and can be delivered upon payment. The delivery time usually does not exceed 15 days. |

Our Certificates

As one of the most professional vlf hipot tester manufacturers and suppliers in China, we're featured by quality products and competitive price. Please rest assured to buy cheap vlf hipot tester made in China here from our factory.
high voltage withstand test generator hipot test, VLF 90KV hipot tester, VLF AC Hipot Tester





