Summary
        Three phase outdoor dry type high-voltage power metering box (without watt hour meter called combined transformer) is suitable for 50Hz and 60Hz three-phase AC, used for power metering on the power grid with rated voltage of 3KV, 6kV and 10kV, and installed on the high-voltage side of the power supply transformer. The instrument box is equipped with three-phase active watt hour meter and reactive watt hour meter, which is used for direct measurement Electrical equipment for active and reactive electric energy in high voltage lines. It plays an important role in preventing power stealing, saving energy and strengthening power supply management.
        This product replaces the traditional oil immersed combined transformer, can be installed in any direction, long-term maintenance free operation, oil-free online.

Structural features
        This type of product is composed of voltage and current combined transformer and measuring instrument box. Two independent voltage and current transformers are installed in phase A and phase C respectively in the transformer. Active and reactive watt hour meters and joint junction boxes for test are installed on the outer wall of the combined transformer. During operation, the meter box is covered to prevent electric theft.
        The inner core of the product is cast with epoxy resin, single piece combination, easy to replace. The shell is made of steel barrel to avoid the damage of epoxy resin castable caused by ultraviolet rays in the sun. The double ratio and the three ratio are adjusted at the secondary terminal to avoid stealing electricity from the primary; the secondary terminal is sealed with lead screws to avoid stealing electricity from the secondary.

Model meaning


Summary
        Jlszv-35, 10, 6, 3 (W, g) dry type combined transformer is a fully sealed structure cast by outdoor epoxy resin, which is used for current measurement, energy measurement and relay protection in power system with rated frequency of 50Hz or 60Hz and rated voltage of 35kV and below. This type of transformer has the advantages of high precision, light weight, wide load, convenient installation, anti pollution, anti ultraviolet, anti stealing and so on. It is an ideal equipment suitable for the current power grid transformation, realizing high-precision measurement and cooperating with the power management reform.

Structural features
Jlszv-35, 10, 6, 3 (W, g) combined transformer is made of special outdoor epoxy resin (Ciba cw5837) imported from Switzerland by vacuum casting. It is UV proof and fully sealed. Its surface creepage distance is large. Umbrella group adopts rain and snow proof and pollution proof design. The secondary terminal shall be provided with a metal protective cover and sealed with a sealing ring inside. The external screws shall be nickel plated brass to prevent rain, rust and corrosion. In the past, the structure of oil immersed transformer is single, the metal layer is easy to be oxidized, heated and leaked, which is difficult to maintain; jlszv-35, 10, 6, 3 (W, g) combined transformer replaced the traditional oil immersed combined transformer, which can be installed in any direction, maintenance free operation for a long time, and oil-free Internet access. The product can be equipped with 2-3 current ratios at the same time, which will bring great convenience for AC capacity increase in the future.

Model meaning