Fengnan District, Tangshan City, public change - site two

Product Name: Three-phase load unbalance automatic adjustment device


Model: YDK-SPC-100


Rated capacity: 100KVAR


Manufacturer: Zhejiang Yide Technology Co., Ltd.


Installation location: Barbarian 坨 2nd change JP cabinet outlet side


Installation time: 10:00 on August 6, 2017


Data collection time: 11:00, August 6, 2017


The transformer in this area is a public transformer with a capacity of 315KVA. The users mainly use electricity for local residents. The load is mainly for single-phase lighting, air conditioning, and heating equipment. The three-phase load imbalance phenomenon is serious, and the single-phase overload of the transformer causes overheating of the winding and the transformer oil, which poses a great hidden danger to the long-term stable operation of the transformer.

Actual data：

The three-phase load imbalance before installation is:


(207.4-97.3) / 207.4 = 53%


The three-phase load imbalance after installation is:


(138.2-135.5) / 138.2 = 1.9%


Conclusion: The three-phase load imbalance is more serious. The device accurately adjusts the three-phase unbalanced load, which not only adjusts the balance of the three-phase load, but also ensures the balance of the three-phase voltage. It guarantees the residents' production and living electricity, and at the same time ensures the safe and reliable operation of the transformer. The temperature rise normally solves the problem of long-term three-phase unbalance of the transformer outlet side. The reactive power compensation power factor is good, the transformer loss is reduced, the operation is stable, the power consumption is low, and the effect is obvious.