The JLSZY-35W combined transformer (also known as an electric energy metering box) is used for measuring active and reactive energy in three-phase power lines with AC 50Hz and rated voltage of 35kV. Suitable for outdoor substations in rural areas, as well as small substations and distribution stations in industrial enterprises. This product can replace the JLS-35 oil immersed energy metering box.

Structural characteristics:
This type of combination transformer is an outdoor epoxy resin cast, fully enclosed, pillar type structure. Due to the use of outdoor epoxy resin casting, the product has the characteristics of arc resistance, UV resistance, aging resistance, long service life, and maintenance free. This product consists of three single-phase grounded voltage transformers connected in a "Y" shape. Two current transformers are connected in series on phases A and C, and the secondary winding of the current transformers has taps to obtain different current ratios.
The secondary outlet is led out through a metal hose, which is easy to wire, safe and reliable, and can achieve anti-theft measures. There are four mounting holes on the base channel steel for installation.

Technical parameters of JLSZY-35W combined transformer:
Pollution level: Level IV;
This type of combination transformer consists of three single-phase grounded voltage transformers and two single-phase current transformers combined into three phases, with Y/Y wiring for the voltage transformers;
This type of combination transformer meets the requirements of GB1208 "Current Transformers", GB1207 "Electromagnetic Voltage Transformers", and GB17201 "Combination Transformers";
The rated voltage ratio of the voltage transformer is 35000/100 (V), and the rated secondary output is 0.2 level 30VA;
Load power factor: COS Φ=0.8 (lag)
Security factor of current transformer instrument: FS ≤ 10;
Environmental temperature: between -30 ℃ and 40 ℃. The daily average temperature does not exceed 30 ℃;
Altitude: ≤ 4000m;

Technical parameters of JLSZY-35W combined transformer

JLSZY-35W Combination Transformer