Oil Immersed OLTC Power Transformer Control System

Voltage quality is an important indicator of power quality. It is closely related to the development of the national economy and the improvement of national living standards. The range of voltage variation directly affects the efficiency, operating performance and service life of power equipment. In order to ensure the voltage quality, the allowable range of power grid voltage at all levels is clearly defined. And the qualified rate of voltage is taken as the main review index reached by the power sector. Due to the small reserved capacity after the power supply and the weak structure of the power grid, the voltage variation range is greatly affected by the load. Using the on-load switch to automatically adjust the on-load switch according to the voltage requirements is an important measure to improve the voltage quality.

Now, many load-adjusted OLTC oil-immersed transformers are also manually adjusted. Due to improper adjustment, deviation and errors of manual adjustment, it is difficult to guarantee the quality of the voltage. Domestic automatic control controllers have problems such as low intelligence, poor measurement accuracy, poor product quality, and low reliability, and it is difficult to meet the actual needs of the field. The performance and quality of the imported automatic controller can basically meet the requirements, but due to the foreign language description of its parameters and specifications, the display part of the display part is still displayed by a digital tube. This brought great difficulty to the operation and maintenance of the on-site staff, and some of the imported controllers were not used for a long time, which had an impact on the voltage. quality improvement.