80kV Ultra-low Frequency High Voltage Generator

Product Introduction

The MEVLF-80kV Ultra-Low Frequency High-Voltage Generator was created with cutting-edge parts like the ARM7 microcontroller and American technology. It has backend administration software and a 7-inch touchscreen. It provides better cost-performance when compared to imported equivalents, overcoming many of the drawbacks of comparable goods. It meets the DL/T849.4-2004 industry standard and is appropriate for withstand voltage testing of high-capacitance equipment such as power lines and large/medium-sized generators.

Product Parameter (specification)

Output rated voltage	See table 3
Output frequencies	0.1Hz, 0.05Hz, 0.02Hz, 0.01Hz
Load capacity	0.5 µF maximum at 0.1 Hz 0.05Hz Maximum 1.1 µF 0.02Hz Maximum 2.2 µF 0.01 Hz Maximum 5.5 µF
Measurement accuracy	3%
Voltage positive and negative peak error	≤3 %
Voltage waveform distortion	≤5 %
Operating conditions	Indoor and outdoor; Temperature
-10 ℃ to +40 ℃; Humidity	≤85 % RH
Power fuse	See table 3
Power supply	voltage 220V±5% , 50±5Hz
Note	If using a portable generator for power, the generator output voltage and frequency must be stable (generally, the power should be greater than 3kW, the frequency 50Hz, and the voltage 220V±5% ).
The capacitance of the test sample shall not exceed the maximum rated capacitance of the instrument, as shown in Table ;

Model	Rated voltage	Load capacity	power supply Fuse	Product structure, weight
30/1.1	30kV (peak value)	0.1 Hz , ≤0.5 µF	10A	Controller: 4 kg Boost converter: 20kg
		0.05Hz , ≤1.1 µF
		0.02Hz , ≤2.2 µF
		0.01 Hz , ≤ 5.5 µF
40/1.1	40kV (peak value)	0.1 Hz , ≤0.5 µF	10A	Controller: 4 kg Boost converter: 20kg
		0.05Hz , ≤1.1 µF
		0.02Hz , ≤2.2 µF
		0.01 Hz , ≤ 5.5 µF
50/1.1	50kV (peak value)	0.1 Hz , ≤0.5 µF	15A	Controller: 4 kg Boost converter: 40kg
		0.05Hz , ≤1.1 µF
		0.02Hz , ≤2.2 µF
		0.01 Hz , ≤ 5.5 µF
60/1.1	60kV (peak value)	0.1 Hz , ≤0.5 µF	15A	Controller: 4 kg Boost converter: 50kg
		0.05Hz , ≤1.1 µF
		0.02Hz , ≤2.2 µF
		0.01 Hz , ≤ 5.5 µF
80/1.1	80kV (peak value)	0.1 Hz , ≤0.5 µF	15A	Controller: 4 kg Boost converter: 50kg
		0.05Hz , ≤1.1 µF
		0.02Hz , ≤2.2 µF
		0.01 Hz , ≤ 5.5 µF
90/1.1	90kV (peak value)	0.1 Hz , ≤0.5 µF	15A	Controller: 4 kg Boost converter: 55kg
		0.05Hz , ≤1.1 µF
		0.02Hz , ≤2.2 µF
		0.01 Hz , ≤ 5.5 µF

Product feature and application

Advanced Technology:

Fully automated testing procedures such as voltage boosting, voltage lowering, measurement, and protection are made possible by the use of digital frequency converter technology with microcomputer control.

Simple wiring and reliable functioning make it user-friendly.

Complete Protection:

Instrument safety and dependability are guaranteed by a number of safeguards (overvoltage protection, high/low-side overcurrent protection) with quick reaction times (action time ≤10ms).

Safe and dependable:

Optoelectronic control and a low-voltage connection between the controller and the high-voltage generator provide safe operation.

Capacitive rising effects in output are eliminated by closed-loop negative feedback control circuitry.

Complete setup:

Automatic storing, automatic printing, LCD Chinese character display, and capacitive touchscreen.

Broad Test Range:

For comprehensive testing capabilities, there are several frequency possibilities (0.1Hz, 0.05Hz, 0.02Hz, and 0.021Hz).

Lightweight and compact:

Perfect for outdoor activities.

English-Chinese Switching Function

Prodection details

This equipment performs ultra-low-frequency withstand voltage tests at 0.1Hz/0.05Hz/0.02Hz, making it suitable for electrical equipment with relatively large equivalent capacitance, such as power cables, power capacitors, big and medium-sized generators, and electric motors. It complies with industry standards like DL/T849.4-2004 and satisfies acceptance and preventive testing criteria.

Company Qualifications

FAQ

1)What environmental requirements must be observed when using the MEVLF-W80kV Ultra-Low Frequency High-Voltage Generator outdoors?

Answer:
The following environmental requirements must be adhered to during outdoor use:
Environmental Conditions: Temperature must be maintained between -10°C and +40°C, with relative humidity ≤85% RH;
Sunlight Protection: Avoid direct exposure to sunlight to prevent damage to instrument components from high temperatures;
Power Supply Assurance: When using a portable generator, ensure the generator has a power rating ≥3kW, output voltage 220V±5%, frequency 50Hz±5%, with stable voltage and frequency;
Protective Measures: Avoid operation in rainy conditions, dusty environments, or areas with corrosive gases to prevent moisture ingress, dust accumulation, or component corrosion.

2)What are the normal shutdown methods for the MEVLF-W80kV Ultra-Low Frequency High-Voltage Generator? What operations does it automatically perform after shutdown?

Answer:
There are two normal shutdown methods:
Timed Shutdown: The instrument automatically shuts down when the test duration reaches the preset value.
Manual Shutdown: During testing, pressing the "Stop" button on the controller manually terminates the test.
After shutdown, the instrument automatically performs specimen discharge. Upon completion, it displays "Test Passed" (if no abnormalities occur) and automatically saves the test data to the history log for subsequent viewing and printing.

3)What key operational points should be noted when replacing paper in the printer of the MEVLF-W80kV Ultra-Low Frequency High-Voltage Generator?

Answer:
Observe the following points when replacing paper:
Opening the cover and removing the core: Press the printer door button to open the front cover and remove the remaining paper core without disassembling the entire printer.
Paper Loading Requirements: When inserting a new paper roll, ensure the thermal coating of the thermal paper faces upward; otherwise, printing will be impossible.
Cover Closure Protocol: Before closing the front cover, allow the paper to extend slightly from the output slot and position it centrally to ensure the roller fully grips the paper.
Abnormal Condition Handling: If paper misalignment occurs, reopen the front cover to adjust the paper position to prevent print quality issues.

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