In December 2020, TYD765/0.005H capacitive voltage transformer produced by Shandong Taikai Instrument Transformer Co., Ltd. successfully passed the seismic test in China Academy of Building Research Co., Ltd. (National Center for Quality Supervision and Test of Building Engineering). The transformer is divided into two structural types: porcelain bushing and composite bushing. Both types have passed 8-degree intensity seismic test required by the standard at one time. Among them, the composite bushing product passed 9-degree (0.5g) intensity allowance test，which is the highest level in China.

TYD765/0.005H is an ultra-high voltage capacitive voltage transformer independently developed by our company. The product is designed with domestic leadership as the goal. While ensuring excellent electrical performance, the R&D team uses professional software to accurately simulate and optimize the force and seismic performance of the product. Through the bushing strength segmented control technology and new metal damping devices application, major breakthroughs have been made in improving the seismic performance of ultra-high voltage units. The transformer has passed all seismic tests at one time, and its seismic performance is better than GB 50260 " Code for design of seismic of electrical installations", Q/GDW11391 "Technical Regulations for Seismic Test of High-Voltage Pillar Electrical Equipment". The technical indicators of the transformer have reached the leading domestic industry level.

The outstanding performance of 765kV capacitive voltage transformer on seismic test demonstrates the company's consistent quality strength, and also enhances brand awareness and products’ market competitiveness.

Fig.1- Site test and test report of porcelain bushing structure product

Fig.2- Site test and test report of composite bushing structure product