MSVLF Series 30kV – 90kV VLF Hipot Tester
MSVLF Series 30kV – 90kV VLF Hipot Tester
Product Description
Advanced 0.1Hz Ultra-Low Frequency High Voltage Generator
The MSVLF Series represents the next generation of AC withstand voltage testing. Utilizing the latest 0.1Hz ultra-low frequency (VLF) technology recommended by the International Electrotechnical Commission (IEC), this tester provides a lighter, safer, and more efficient alternative to traditional power frequency and DC tests. It is the ideal solution for field testing of high-capacitance electrical equipment.
Why Choose the MSVLF Series?
The MSVLF overcomes the limitations of traditional withstand voltage testers. Compared to standard power frequency testing, the 0.1Hz frequency reduces the required power supply capacity to approximately one-fifth, significantly reducing the equipment’s size and weight. Unlike DC withstand voltage tests, which can damage insulation, the VLF AC test provides a true AC stress equivalent to power frequency testing without the destructive side effects.
Key Advantages:
– Superior Technology: Uses an electronic high-voltage switch for a pure sine wave output and an energy-saving design that feeds excess power back to the grid.
– Automated & Smart: Equipped with a 7-inch capacitive touch screen and ARM7 microcontroller, the instrument automates the entire test process (self-check, boost, constant amplitude, shut down).
– Enhanced Safety: Features multiple protections including over-voltage, over-current (low and high voltage sides), and a photoelectric controller for safe, low-voltage operation. Automatically discharges the test object after shutdown.
– Operation: Simple wiring and intuitive touch-screen interface ensure ease of use in the field.
– Data Management: Automatic data storage (up to 64 records), built-in printer for reports, and USB connectivity for data transfer.
Technical Specifications & Model Selection
Choose the model that fits your testing requirements. Ensure the load capacitance of your test object does not exceed the instrument’s rated capacity.
| Model | Rated Voltage (kV) | 0.1Hz Capacitive Load (μF) | Fuse Rating | Controller Weight (kg) | Booster Weight (kg) | Total Weight (kg) |
| MSVLF-30kV | 30 | ≤1.1 | 8A | 6 | 20 | 26 |
| MSVLF-60kV | 60 | ≤1.1 | 10A | 6 | 45 | 51 |
| MSVLF-80kV | 80 | ≤1.1 | 20A | 6 | 50 | 56 |
| MSVLF-90kV | 90 | ≤1.1 | 20A | 6 | 55 | 61 |
Flexible Frequency Options: 0.1Hz, 0.05Hz, and 0.02Hz for varied testing needs.*
Typical Applications
– Power Cables:** Withstand voltage testing of XLPE insulated power cables (35kV and below).
-Rotating Machinery:** Insulation testing of large and medium-sized generators and motors.
-Capacitors:** Testing of power capacitors.
Safety & Quality Assurance
-Protections:Over-voltage, Over-current (High & Low Voltage side), Emergency Stop.
– Warranty:1-year free warranty with lifelong after-sales service, including training and software upgrades.
– Standards: Conforms to DL/T 849.4-2004 (China) and IEC standards.
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