Your Professional High Voltage Divider Supplier
Founded in 1992 and formally incorporated as Wuhan Moen Intelligent Electrical Co., Ltd. on November 12, 2012, with a registered capital of RMB 36 million, we are a professional technology company specializing in the research, development, and production of high-voltage test equipment. Our 8,000 m² facility in Wuhan East Lake High-Tech Development Zone houses dedicated production lines, R&D centers, and administrative facilities. With an experienced technical and production team, Moen focuses on core products including test transformers, series resonance systems, and other high-voltage testing equipment. Backed by years of industry experience, the company is committed to reliable manufacturing, continuous technical improvement, and providing practical solutions for global power utility and industrial customers.
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High Voltage Divider (Peak Meter)The MOEORW-WPAD-50kV high-voltage divider (peak meter) is a high-precision AC/DC high-voltage measurement and protection device . It adopts DSP digital processing and EMC-resistant design, can -
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Resistive Capacitive Voltage DividerHigh Precision:±0.5% DC & ±1.0% AC accuracy.Anti-Interference:Equipotential shielding blocks noise.Digital Readout:Clear display from a safe distance. -
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200 KV AC DC Voltage DividerSpecialized for 200kV AC high-voltage testing that requires true RMS, peak, and average values in one machine, the MOEORW-WGX200 provides dedicated AC accuracy, stable display, and strong -
![300kV AC DC Digital Voltage Divider]()
300kV AC DC Digital Voltage DividerDesigned exclusively for 300kV UHV measurement where safety and distance matter most, the MOEORW-WGF300 features a 10m remote cable, full metal shielding, and industrial-grade stability to protect -
![200kV AC DC Digital Voltage Divider]()
200kV AC DC Digital Voltage DividerEngineered for 200kV ultra-stable high-voltage measurement, the MOEORW-WGF200 uses dual shielding and precision resistive-capacitive design to produce report-grade data, eliminate interference, and -
![150kV AC DC Digital Voltage Divider]()
150kV AC DC Digital Voltage DividerBuilt for 150kV high-voltage testing in complex electromagnetic environments, the MOEORW-WGF150 combines true RMS measurement, multi-mode display, and equipotential shielding to keep readings stable -
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100kV AC DC Digital Voltage DividerWhen you need 100kV measurement with excellent linearity, strong anti-interference, and long-lasting stability, the MOEORW-WGF100 delivers consistent, trustworthy data for substation handover tests, -
![50kV AC DC Digital Voltage Divider]()
50kV AC DC Digital Voltage DividerFor 50kV AC/DC high-voltage measurement that demands stable readings, zero drift, and field-safe operation, the MOEORW-WGF50 is the compact, reliable solution built to eliminate interference, avoid
Why choose us
Our Certificate
We are certified in ISO 9001 (Quality), ISO 45001 (Health & Safety), and ISO 14001 (Environment), ensuring high standards in all aspects of our operations.
Strong R&D Capability
Committed to technological breakthroughs, including investments to develop 750kV reactor solutions.
Experienced Technical Team
A growing team of 61 employees supporting product development, production, and customer service.
Complete Pre & After-Sales Service
From solution design and technical support to installation, maintenance, and fast response service.
The active part of the RC divider consists of capacitive and parallel connected resistive dividing elements. The length of the active part extends along the entire insulator length, which results in linear voltage distribution. Both elements are calibrated to each other and provide accurate transient voltage signals from the high-voltage side to the low-voltage side. The RC divider enables very high frequency bandwidth; even direct voltages (DC) can be measured.
Product Parameter (specification)
|
Product Standard |
DL/T846.1-2004 |
|
AC measurement methods |
True RMS measurement, peak value, mean value |
|
Accuracy |
AC |
|
1.0%rdg±0.1 DC |
0.5%rdg±0.1 |
|
Insulating medium |
Dry dielectric material |
|
Environmental conditions |
Temperature |
|
-10℃～40℃; Humidity |
≤70%RH |
|
Voltage divider ratio |
AC N=10000 |
|
1 Frequency range |
30Hz-500Hz |
|
DC N=1000 |
1 |
Wide Frequency Bandwidth
The RC divider can operate from DC to high-frequency MHz ranges. It can accurately measure DC voltage, power-frequency voltage, and fast transient signals in one device.
Low Power Loss
At 50/60 Hz, the capacitive part mainly controls the voltage division. Since capacitors consume very little real power, the overall power loss of the RC divider is very low.
Good DC Measurement Capability
Unlike a pure capacitive divider, the RC divider can also measure DC voltage. The resistor branch works at DC and low frequencies, ensuring accurate voltage measurement.
Uniform Voltage Distribution
The resistor and capacitor elements are distributed along the insulator length, creating a uniform voltage gradient. This reduces electric field distortion and improves insulation performance.
High Accuracy and Stability
The RC divider provides high measurement accuracy and stable performance under different temperature and operating conditions, making it suitable for metering and protection systems.
Types of Resistive Capacitive Voltage Divider
Analog-Digital Mixed Voltage Dividers
Combines analog signal conditioning with digital processing to handle high-voltage inputs with precision. These systems use analog components for initial voltage scaling and filtering, followed by digital conversion and analysis.
High-Resolution Digital Voltage Dividers
Engineered for applications requiring sub-millivolt precision, these dividers use high-bit ADCs (16-bit to 24-bit) and temperature-compensated resistors to detect minute voltage changes.
Real-Time Digital Voltage Dividers
Designed for fast dynamic response, these dividers process voltage data with minimal latency using high-speed ADCs and FPGA-based processing units.
Low Power Consumption Digital Voltage Dividers
Optimized for energy efficiency, these dividers use low-power microcontrollers, sleep modes, and efficient voltage scaling techniques to minimize energy use.
High Isolation Digital Voltage Dividers
Featuring galvanic isolation (optical, magnetic, or capacitive), these dividers safely measure high voltages by electrically separating input and output circuits, protecting both equipment and users.
Application of Resistive Capacitive Voltage Divider
Industrial Automation & Power Monitoring
Requires wide input voltage ranges, electrical isolation (e.g., galvanic isolation), and robustness against surges and transients. Accuracy within ±1% is often sufficient.
Semiconductor Testing & Calibration
Demands ultra-high precision (±0.01% or better), excellent temperature stability, and high resolution (16-bit or higher ADCs).
Renewable Energy Systems (Solar/Wind)
Needs high-voltage handling (up to 1000V DC), long-term stability, and resistance to environmental fluctuations.
Data Acquisition & IoT Devices
Prioritizes compact size, low power consumption, and digital communication protocols (I²C, SPI, UART).
Power Rating of Resistive Capacitive Voltage Divider
Calculate Power Dissipation: Determine the total current through the divider (I = Vin / (R₁ + R₂)) and compute power in each resistor (P = I²R).
Safety Margin: Select resistors with a power rating at least 1.5 to 2 times the calculated dissipation to ensure reliability and longevity.
High-Voltage Applications: Use resistors rated for high voltage and consider derating at elevated temperatures.
Low-Power Applications: In signal-level circuits (e.g., sensor biasing), standard 0.25W or 0.125W resistors are typically sufficient.
Components of Resistive Capacitive Voltage Divider
Active Part (High-Voltage Section)
The active part extends along the insulator and includes a capacitor stack connected in series and a parallel resistor chain. This design ensures uniform voltage distribution and reduces electric field distortion.
Hermetic Sealing and Expansion Bellows
The internal components are hermetically sealed to prevent moisture and contamination. An expansion bellows compensates for oil volume changes caused by temperature variation and helps maintain stable operating pressure.
Shielding Electrode
For systems rated 420 kV and above, a shielding electrode is installed in the divider head. It improves electric field distribution and ensures accurate voltage measurement under high-voltage conditions.
Terminal Box (Low-Voltage Sectio
The terminal box contains the secondary measurement and protection components. It provides division ratio adjustment, over-voltage protection, and easy maintenance access through a side-opening cover.
Operating Principle of Resistive Capacitive Voltage Divider
Operation at Power Frequency (50/60 Hz)
At 50/60 Hz, the capacitor impedance is relatively low, allowing most of the voltage to be distributed across the capacitor stack. As a result, only a very small amount of power is dissipated within the divider.The resistor divider carries only a small correction current and is mainly used to improve low-frequency and DC measurement accuracy.
Operation at DC (0 Hz)
Under DC conditions, the capacitors behave as open circuits with theoretically infinite impedance. Therefore, the capacitive branch no longer conducts current, and the entire voltage distribution is achieved solely by the resistor divider.
Certificates
FAQ
As one of the most professional high voltage divider manufacturers in China, we're featured by quality products and good price. Please rest assured to buy high quality high voltage divider in stock here and get quotation from our factory. Customized orders are welcome.
200kV AC DC Digital Voltage Divider, 5kV Turn to turn Impulse Withstand Voltage Tester, Capacitive Voltage Divider
