OUTDOOR HIGH VOLTAGE MEASURING COMBINED TRANSFORMER

Three-in-one 10kv 15kv combined transformer

Ⅰ. Use and scope of application
This type of high-voltage dry-type combined transformer is improved on the basis of similar products, and is made of vacuum casting of imported special insulating resin. It has the characteristics of arc resistance, ultraviolet resistance, aging resistance, and long life. It is suitable for active and reactive energy metering in AC power system with rated frequency of 50/60Hz and rated voltage of 15kV. Particularly suitable for unattended, oil-free small substations, product performance meets the requirements of IEC61869 standard.

Ⅱ. Service conditions:
2.1 Installation site: Outdoor and indoor dual use.
2.2 Ambient temperature: -15~+55℃, average daily temperature does not exceed 35℃.
2.3 Altitude: ≤1000m
2.4 Air relative humidity: The monthly average relative humidity is not more than 90%; The daily average relative humidity is not more than 95%.
2.5 Wind speed: ≤ 35m/s.
2.6 Atmospheric conditions: The place where there is no explosion, no violent vibration, and no dust or vapor that can corrode metals and damage insulation.

Ⅲ. Structure introduction:
The combined transformer is a three-in-one products. The secondary winding of the current transformer has taps to obtain different current ratios.
There is a wiring protection box at the secondary outlet end, and there is a outlet hole under it, which is convenient, safe and reliable for wiring and can realize anti-theft measures. There are four mounting holes on the base channel steel for installation.

Ⅳ. General technical specifications:
4.1 Rated voltage: 15kV.
4.2 Accuracy class: 0.2, 0.2S
4.3 Rated voltage ratio: 13200/√3/120/√3V.
Rated primary current: 5~800 A.
Rated secondary current: 5A.
4.4 Rated capacity:
Voltage part: Class 0.2, 10VA.
Current part: Class 0.2S, 10VA.
4.5 Rated short thermal current (Ith) multiple: 60In.
Rated dynamic current (Idyn) multiple: 2.5Ith.