Combined current and voltage transformers: Combined transformer combination of current and voltage transformers made more attached to the high-pressure metering box, cabinet, or for use as electrical energy metering device power protection devices. Combined current and voltage transformers are the two or three current transformer primary and secondary windings and iron core and a voltage transformer secondary winding and high voltage transformer core Harbin Which is better? Fixed on steel body frame, oil immersed transformer cabinets equipped with high-voltage transformer Qinhuangdao Which is better? One secondary windings are qualifying leads, connected to the box outside the high voltage insulator on high voltage transformer, forming an insulating closed whole. The primary and high-voltage power line transformers connected Jilin Which is better? The secondary side of the metering device or protection devices connected. Depending on the needs of current and voltage transformer combined into V / V wiring and Y / Y junction of two to three-phase energy metering when load balanced or unbalanced. Voltage transformer: Measuring current transformers and measuring instruments mainly cooperate in the line of normal working condition, used to measure current, voltage, power, etc. Measured using a micro-current transformer main requirements: 1, insulation reliability; 2, a sufficiently high measurement accuracy; 3, when a large current is measured line failure occurs when the transformer should be saturated (e.g. 500% within the appropriate range of the nominal current) to protect the measuring instruments. Protecting the current transformer and relay device with the main current transformers, when the line short-circuit or overload fault relay device provides a signal to cut off the fault circuit, in order to protect the security of the power supply system. Micro current transformer protection and working conditions measuring transformer is completely different, just the beginning of an effective protection of transformers work only when the current is several times larger than normal several times the current. Shenyang high-voltage transformer Which is better? | High voltage transformers | Huayi electricity provided by Xian Huayi power plant. Xian Huayi power plant (www.xahy.com) strong, credible, in Xi'an high-voltage circuit breakers and other industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Huayi power and you hand into the brilliant, for a better future!