CULTIVATION OF TALENTS

DTSF881 electronic three-phase four-wire multi-rate electric energy meter


The company uses 5% of the annual sales revenue for the center's scientific research and development, and has developed 28 series of new products with low-voltage electrical appliances, instruments, complete sets of equipment, etc., with independent intellectual property rights of Huanyu. 2 patents, 2 national-level new products, 32 provincial-level new products, HUM8-250S won the national torch plan project.

People-oriented, product-oriented


Carry out research on smart grids, the intelligence of the grid, which is based on an integrated, high-speed two-way communication network, through advanced sensing and measurement technology, advanced equipment technology, advanced control methods and advanced decision support system technology Applications.

PART OF THE RESEARCH RESULTS

Mini Circuit Breaker(MCB)

EXB3 series Mini Circuit Breaker

Leakage Circuit Breaker (RCOB)

Explorer EXB3LE-125 series RCBO is working for Overload protection, short circuit protection, isolation, residual current operation.

Moulded Case Circuit Breaker (MCCB)

EXM3 series MCCB is mainly used for AC 50 Hz (or 60 Hz) and rated voltage up to 690V.

The moulded case circuit breaker will provide protection for the circuit and equipment in case of overload, short circuit and under voltage condition occurred in the power distribution circuit. Besides, it can also provide protection of overload, short circuit and under voltage for the non-frequent start of motor.

AC Contactor

Qizhi cjx2n series AC contactor is mainly used for AC 50 Hz (or 60 Hz) and rated voltage up to 690V.

In the circuit with rated working current up to 95A under AC-3 usage category, it is mainly used to start and control AC motor frequently, connect and break the circuit remotely, and form an electromagnetic starter with appropriate thermal overload relay to protect the circuit from possible overload.

Compliance criteria:GB/T 14048.1/IEC 60947-1、GB/T 14048.4/IEC 60947-4-1

Air Circuit Breaker(ACB)

Explorer series Air Circuit Breaker is mainly used for AC 50 Hz (or 60 Hz) and rated voltage up to 690V.

In the circuit with rated working current up to 95A under AC-3 usage category, it is mainly used to start and control AC motor frequently, connect and break the circuit remotely, and form an electromagnetic starter with appropriate thermal overload relay to protect the circuit from possible overload.

Compliance criteria:GB/T 14048.1/IEC 60947-1、GB/T 14048.4/IEC 60947-4-1

Earth Leakage Circuit Breaker(ELCB)

Qizhi EXM3L series residual current circuit breakers are mainly used for AC 50 Hz (or 60 Hz) and rated voltage up to 415V. And provide protection against leakage current which may cause insulation failure, electric shock to equipment and human body irrespective along with the standard protection against over load&short circuit condition.

RESULTS SHOW

Leakage Circuit Breaker (Type 4P)

Appearance patent certificate
Patent No:ZL 02 3 14276.6
Authorization date:October 30, 2002

Leakage Circuit Breaker (Type 4P)

Appearance patent certificate
Patent No:ZL 02 3 14276.6
Authorization date:October 30, 2002

Leakage Circuit Breaker (Type 4P)

Appearance patent certificate
Patent No:ZL 02 3 14276.6
Authorization date:October 30, 2002

Leakage Circuit Breaker (Type 4P)

Appearance patent certificate
Patent No:ZL 02 3 14276.6
Authorization date:October 30, 2002

Leakage Circuit Breaker (Type 4P)

Appearance patent certificate
Patent No:ZL 02 3 14276.6
Authorization date:October 30, 2002

Leakage Circuit Breaker (Type 4P)

Appearance patent certificate
Patent No:ZL 02 3 14276.6
Authorization date:October 30, 2002