QCB-101 Relay

Product Overview

Phase and ground (E)/ fault (F) overcurrent protection
Transformer high-temperature/over-temperature protection
Records: Faults (200), Events (200), Operation Records (200), Logs (200)
Three setting groups (HMI/ upper computer /RS485)
Second harmonic surge louckout
Circuit breaker control is carried out via RS485/HMI/ USB Type-C input and local/remote mode
USB Type-C: program upgrade
RS485 interface: Modbus,IEC60870-101 , IEC60870-103
Various optional functions can be selected in different situation:

Low-temperature screen: AC/DC auxiliary voltage selection
More additional local or remote control input amounts (up to 8)

Product Features

High reliability and adaptability

Robust design, the protection level of front panel can reach IP54

Can keep stable operating under 40A and 540V situation

Wide power supply voltage support: D1 type :18-75VDC; D2 type: AC/ DC universal 85-305 VAC/120-430VDC

Beijing Qingchang Power Technology Co., Ltd. was established in 2005 with a registered capital of 103.8 million yuan.

It is an innovative enterprise on the Beijing Stock Exchange, with stock code 430057 and 300 employees. The Company's headquarters is located in the Shangdi Information Industry Park in Zhongguancun, Beijing, where high-tech enterprises gather. The intelligent manufacturing base is adjacent to the beautiful Yanqi Lake and within the national development zone "Huairou Science City", in Huairou District, Beijing, covering an area of 26,600 square meters.

The Company focuses on technical research and intelligent manufacturing in the field of medium voltage, centering on the core technology of ring main unit (RMU) products. It continues to expand in the fields of 10-35kV Eco-friendly Gas insulated switchgear, new energy pre-installed substations, distribution automation terminals, and other products, providing high-quality products and services for power grids, new energy, railways, and other industries in all provinces in China and multiple international regions. The Company is a China's SRDI (Specialized, Refinement, Differential and Innovation) "little giant" enterprise, as well as a national high-tech enterprise. It is also a cooperative unit of Beijing Enterprise Technology Center, North China Electric Power University Graduate Workstation, and Zhejiang University. The Company's manufacturing base has first-class intelligent manufacturing production lines, and is equipped with material analysis professional laboratories, EMC electromagnetic compatibility laboratories, high-voltage electrical temperature rise laboratories, X-ray inspection laboratories, high-voltage electrical comprehensive laboratories, etc. We have international-class testing methods and advanced testing equipment.

The Company takes serving the global power industry as its responsibility and has always adhered to the business philosophy of "serving the global market and building a world brand", making unremitting efforts to achieve the goal of becoming a "well-known brand in the global power sector"!