High Voltage Protection Device

High Voltage Protection Device

Our High Voltage Protection Device is a comprehensive protection solution designed for medium and high-voltage power systems. It integrates multiple functions including overcurrent, instantaneous overcurrent, overload, and earth fault protection. This product uses advanced microelectronic detection technology combined with a highly reliable operating mechanism. It can accurately identify fault types and cut off fault current in the shortest possible time, effectively protecting transformers, motors, and cables. Compared with traditional electromagnetic protection devices, our product offers significantly improved protection accuracy, operating speed, and functional flexibility.
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Description

Comprehensive Protection for Medium Voltage Systems

 

Our High Voltage Protection Device is a comprehensive protection solution designed for medium and high-voltage power systems. It integrates multiple functions including overcurrent, instantaneous overcurrent, overload, and earth fault protection. This product uses advanced microelectronic detection technology combined with a highly reliable operating mechanism. It can accurately identify fault types and cut off fault current in the shortest possible time, effectively protecting transformers, motors, and cables. Compared with traditional electromagnetic protection devices, our product offers significantly improved protection accuracy, operating speed, and functional flexibility.
product-536-512

 

Military-Grade Reliability and Intelligence

 

In terms of reliability and durability, our High Voltage Protection Device follows the strict standards of military products. Core sensors and actuators are selected from high-quality, fully validated components. Each unit undergoes complete functional testing and aging tests before shipping. Our product has comprehensive self-diagnosis and status monitoring functions. It displays operating parameters and fault records in real time, which greatly facilitates daily inspection and fault diagnosis for maintenance personnel. Our devices are already operating stably in many substations, power plants, and large industrial distribution systems.

 

Built for Critical Power Infrastructure

 

You can rely on this High Voltage Protection Device for your most important power infrastructure. Our engineers have deep knowledge of protection systems. We have designed this device to meet the needs of modern power grids. It provides the accuracy and speed you need to protect valuable assets. We are committed to delivering a solution that ensures the safety and reliability of your power system. When you choose our High Voltage Protection Device, you are choosing a partner with decades of expertise.

 

Specifications

 

Parameter

Specification

Rated Voltage Level

3.6kV, 7.2kV, 12kV, 40.5kV

Rated Current

5A - 1250A

Protection Functions

Overcurrent, Instantaneous, Overload, Earth Fault, Undervoltage (Combinable)

Operating Accuracy

≤±5%

Operating Time

Instantaneous ≤40ms, Overcurrent adjustable

Operating Power Supply

AC/DC 220V

Communication Interface

RS485 (Optional)

Protection Degree

IP3X - IP4X

Applicable Standards

GB/T 14598, DL/T 624, IEC 60255

 

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