This combined transformer (Metering kit) which is combined by current transformer and potential transformer. It can measure the active and reactive electricity directly for the high voltage power line. It suits to the 50/60Hz electricity measurement for the active and reactive energy and relay protection. It can be used in the outdoor electric utility substation and power transformer substation, which can instead of the oil-immersed type combined transformer.

The JLS-3/6/12/36 combined instrument transformers have four versions with different voltages 3/6/12/36 kV. The transformers are designed for three phase electric systems of rated frequency of 50/60Hz. The products are used in metering electric energy, voltage controlling and relay protection applications.

The JLSZ-6/12/36(W) are combined voltage and current instrument transformers. The combination set of combined instrument transformer and measuring meter is called electric measuring tank. The product is used in three-phase systems of rated frequency of 50/60Hz. They are mounted in outdoor service conditions. The rated primary voltage is respectively 6kV, 12kV and 36kV, with rated current ranging from 1A to 1kA. The rated secondary voltage is 100V. And the instrument transformers have four version s with different voltages 6/12/36 kV.

The JLSZW-6/12 are fitted with voltage and current instrument transformers. The product is used in three-phase systems of rated frequency of 50/60Hz and rated voltage of 12kV. The product is alternative to JLSJW-12 oil-immersed combination transformer. The products are used in metering electric energy, voltage controlling and relay protection applications. The products are suitable for outdoor transformer substations in rural areas, as well as for industrial services. It is alternative to JLS-12 oil immersed combination transformer.

The JLSZV-12(W) is combined voltage and current instrument transformers. The product is used in three-phase systems of rated frequency of 50/60Hz and rated voltage of 12kV. The product is alternative to JLSJW-12 oil-immersed combination transformer.