Power Quality (Thailand) Co., Ltd. (PQT) was founded in 1986 by professionals with more than +30 years of experience in the power quality industry to offer engineering services and products worldwide.

We offer a wide range of power quality products and services, including electrical system power analysis, testing, monitoring, trouble analysis, fault diagnostics, ground current testing, leakage current testing, power quality sensitive testing, design advice for power quality and power quality training for end user and utility customer engineers.


Power Quality Inc. 
642 E. 39th Place, Suite 5 Yuma, Arizona.

Business Phone: 928 344 9008

Power Quality (Thailand) Co., Ltd. 
52/44 Moo.1 Ramkhamhaeng Soi 90, Ramkhamhaeng Rd., Sapansoong Sub-District, Bangkok 10240 Thailand.

Business Phone: +662 373 6340

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