High-Precision 200kV AC/DC Digital Voltage Divider

Product Introduction

An excellent high-voltage measurement tool for power systems and the production of electrical and electronic equipment is the MEFRC-W200kV AC/DC Digital Voltage Divider. It is made up of a low-voltage display meter and a high-voltage divider. It provides easy operation and mobility with its powerful anti-interference capability, excellent precision, and dependable safety. It can be used separately with a multimeter and is capable of detecting both power-frequency AC and DC high voltages. After use, proper maintenance is necessary to guarantee performance.

Product Parameter (specification)

Divider Impedance	2400 MΩ
Divider Voltage Rating	AC
200kV DC	200kV
Display Range	Low：0-20kV High：0-200kV
AC Measurement Method	True RMS Measurement
Accuracy	AC：1.0% DC：0.5%
Insulating Medium	DuPont Dry-Type Insulating Material
Divider Voltage Ratio	1000：1
Coaxial Cable Length	4m
Ambient Temperature	0~40℃
Humidity	≤85%RH

Product feature and application

1. High Accuracy

Utilizing precision high-voltage film capacitors and precision high-voltage glass-glazed resistors, the instrument features high input impedance, reduced test current, low power consumption, and enhanced measurement accuracy and stability.

The signal processing section employs high-performance operational amplifiers for signal amplification, utilizing the latest dual-integrating AD sampling technology. With a 4.5-digit LCD display and a maximum resolution of 0.001kV, it represents the next generation of high-voltage electrostatic voltmeters.

2. Excellent Anti-Interference Performance

Special shielding technology is employed. The smooth, glossy surface of the aluminum alloy equalizing sphere effectively improves the surrounding electric field distribution, prevents corona discharge, and enhances measurement data immunity to interference. The low-voltage display meter features a fully enclosed metal shielding structure. High-quality coaxial cables connect the high-voltage divider and low-voltage display meter, minimizing high-voltage interference on readings to achieve high stability and linearity.

3. Safe and Reliable

This instrument consists of a high-voltage divider and a low-voltage display meter. The high-voltage divider utilizes DuPont filling material from the USA and is encapsulated using specialized processes. It features a smaller structure, lighter weight, minimized internal partial discharge, and higher reliability. There is no risk of oil leakage. During operation, the high-voltage divider and low-voltage meter are connected via coaxial cable, keeping the high and low voltage sections at a safe distance for reliable and secure operation.

4. Simple Operation

High/low voltage and AC/DC modes are switched via DIP switches for quick and convenient operation. A four-and-a-half-digit LCD directly displays measurement results in a simple and intuitive manner, greatly facilitating on-site testing.

5. Portable Design

Featuring a portable structure, the entire unit is housed in an aluminum alloy case for easy assembly and disassembly. Its compact size and light weight make it highly portable and user-friendly.

Prodection details

The MEFRC-W200kV AC/DC Digital Voltage Divider is designed for use in high-voltage electrical equipment production facilities, substations, power plants, and testing labs. Power frequency high voltage, lightning high voltage, and pulse high voltage are all measured using it.

Company Qualifications

FAQ

1)In what aspects does the MEFRC-W200kV AC/DC Digital Voltage Divider demonstrate excellent anti-interference performance?

Answer: This product ensures anti-interference performance through multiple specialized designs, specifically:
First, it employs an aluminum alloy equalizing sphere with a smooth, glossy surface. This effectively improves the surrounding electric field distribution, prevents corona discharge, and enhances the measurement data's resistance to interference. Second, the low-voltage display meter employs a fully enclosed metal shielding structure to minimize external interference. Third, the high-voltage divider and low-voltage display meter are connected via high-quality coaxial cables, reducing the impact of high voltage on readings to achieve high stability and linearity.

2)What specific operational precautions should be taken after measuring DC high voltage with the MEFRC-200kV AC/DC Digital Voltage Divider?

Answer: After completing DC high-voltage measurements, two critical operations must be performed: First, disconnect the high-voltage power supply and wait for the low-voltage display meter to return to zero before entering the measurement site. Second, due to internal filter capacitors, the instrument must be discharged after measurement completion before approaching the high-voltage divider to prevent residual charge from causing safety hazards.

3)How should one troubleshoot and address the issue of noticeable discharge sounds during measurements with the MEFRC-200kV AC/DC Digital Divider?

Answer: Follow these troubleshooting and resolution steps: First, verify proper instrument grounding. Ensure the dedicated grounding post on the high-voltage divider base is securely connected to the grounding wire, as poor grounding is a common cause of discharge sounds. If discharge sounds persist despite proper grounding, moisture may have entered the high-voltage divider. In this case, wipe the divider housing with a dry cloth, then use a dry blower to blow air from top to bottom for five minutes to remove internal moisture before resuming measurements.

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