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.

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 |
Hot Tags: high voltage protection device, China high voltage protection device manufacturers, suppliers, factory, european standard vacuum circuit breaker, hand operated vacuum circuit breaker, Low Tension Circuit Breaker, transformer protection vacuum breaker, vacuum circuit breaker, vacuum interrupter circuit breaker electrical

