300kV AC DC Digital Voltage Divider

Product Introduction

The MEFRC-W300kV AC/DC Digital Voltage Divider is a great high-voltage measurement tool for power systems and the manufacturing of electrical and electronic equipment. It consists of a high-voltage divider and a low-voltage display meter. Its strong anti-interference capability, exceptional precision, and reliable safety make it simple to operate and move around. It detects both power-frequency AC and DC high voltages and can be used independently with a multimeter. To ensure performance after usage, appropriate maintenance is required.

Product Parameter (specification)

Divider Impedance	3600 MΩ
Divider Voltage Rating	AC：300kV DC：300kV
Display Range	Low：0-20kV High：0-300kV
AC Measurement Method	True RMS Measurement
Accuracy	AC：1.5% DC：1.0%
Insulating Medium	DuPont Dry-Type Insulating Material
Divider Voltage Ratio	1000：1
Coaxial Cable Length	5m
Ambient Temperature	0~40℃
Humidity	≤85%RH

Product feature and application

1. Excellent precision

The device has high input impedance, low test current, low power consumption, and improved measurement accuracy and stability thanks to the use of precision high-voltage film capacitors and precision high-voltage glass-glazed resistors.
Using the most recent dual-integrating AD sampling technology, the signal processing section amplifies signals using high-performance operational amplifiers. It is the next generation of high-voltage electrostatic voltmeters, with a 4.5-digit LCD display and a maximum resolution of 0.001kV.

2. Superior Anti-Interference Capability

It uses specialized shielding technologies. The aluminum alloy equalizing sphere's glossy, smooth surface significantly optimizes measurement data immunity to interference, reduces corona discharge, and improves the surrounding electric field distribution. The metal shielding structure of the low-voltage display meter is completely encased. The low-voltage display meter and high-voltage divider are connected by premium coaxial cables, which reduce high-voltage interference on readings to provide good linearity and stability.

3. Secure and Dependable

A low-voltage display meter and a high-voltage divider make up this device. The high-voltage divider is enclosed using specific procedures and uses DuPont filler material from the United States. It is more dependable, has a lighter weight, a smaller structure, and less internal partial discharge. Oil leaks are not a possibility. Coaxial cable is used to connect the high-voltage divider and low-voltage meter during operation, maintaining a safe distance between the high and low voltage portions for dependable and secure operation.

4. Easy to Use

DIP switches are used to quickly and conveniently switch between AC/DC and high/low voltage modes. On-site testing is made much easier by a four-and-a-half-digit LCD that directly shows measurement findings in an easy-to-understand manner.

5. Design for Portability

The complete machine is contained in an aluminum alloy box enabling simple assembly and disassembly, and it has a portable structure. It is very portable and easy to use due to its small size and light weight.

Prodection details

The MEFRC-W300kV AC/DC Digital Voltage Divider is intended for use in substations, power plants, testing labs, and high-voltage electrical equipment manufacturing facilities. It is used to measure power frequency high voltage, lightning high voltage, and pulse high voltage.

Company Qualifications

FAQ

1)What preparatory steps are required before measuring with the MEFRC-300kV AC/DC Digital Voltage Divider?

Answer: Three preparatory steps must be completed before measurement: First, select an open area for testing, as the instrument is high-voltage equipment and an open environment ensures operational safety. Second, confirm the operating environment meets requirements: ambient temperature must be 0~40℃ and humidity ≤85% RH. Third, inspect the low-voltage display meter status. After powering on the instrument, verify the LCD display digits are clear. If display is blurred or absent, promptly check the internal battery.

2)What are the key structural components of the high-voltage divider section in the MEFRC-300kV AC/DC Digital Voltage Divider?

Answer: The high-voltage divider comprises five key structural components: ① Equalizing sphere, ② Divider insulating cylinder, ③ Grounding post, ④ Signal sampling output interface, ⑤ Divider base. These components work together to ensure stable and reliable high-voltage division and signal sampling.

3)Can the high-voltage divider section of the MEFRC-300kV AC/DC Digital Voltage Divider be used independently? If so, how is measurement performed?

Answer: The high-voltage divider of this product can be used independently. During operation, a standard multimeter available on the market can replace the original low-voltage display meter. Since the high-voltage divider has a voltage division ratio of 1000:1, multiplying the multimeter reading by 1000 yields the measured high-voltage value (alternatively, the multimeter reading can be directly converted to kV).

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