About

Our History

TESIENT Instrument was established in 2000. Right from its start we have been insisting on continuous technical innovation and consistently pursuing a high-quality, hich-tech professional brand to provide our worldwide customers with better products and solutions.

Our First Relay Tester

2001
The M2000 protection relay tester was launched, which was the first to offer a free three-year warranty.

International Marketing

2004
We began to explore the international market and have won good reputation on the world mark

First IEC61850 Test Set

2008
We launched our MF3000, which is specially designed for testing protective relays with optical interface in modern IEC61850 type digital substations.

All-in-One Protection Tester

2013
The MP3000F digital-analog integrated test system was successfully launched, which can test all type of convenstional protective relays and also digital substations (IEC61850 sampled value and GOOSE).

Merging Unit Test Set

2015
TMU-1000 was launched for testing Mergin Unit in digital substations.

Automated Test Sytstem

2019
2019年，公司成功推出TS200继电保护自动测试系统和TS210智能远动机自动测试系统。

We have the ability to produce more than 1,230 sets of various types of electrical test equipment annually and we are happy to work together with our partners to satisfy their customers with our substation and protection relay solution, current and voltage amplifiers, and flexible current and voltage power sources.