Basic Info.
Model NO.
TYD
Production Capacity
10000
Product Description
Capacitor voltage transformer (CVT) is intended for voltage measurement, power measurement, auto control and relay protection in effectively earthed neutral system or non-effectively earthed neutral system, and intended to be a coupling capacitor in carrier coupling device in power line.
CVT consist of a capacitor divider and an electromagnetic unit. Capacitor divider comprises one or several coupling capacitors in series. Capacitor divider and electromagnetic unit are connected between intermediate terminal and low-voltage terminal. An electromagnetic unit contains an intermediate voltage transformer, a compensation reactor, a protective device and a damper which are assembled in an oil filled tank. Secondary winding is lead out through terminal box in tank front.
"C" type iron core is more stable and reliable.
Rapid-saturated reactor can effectively suppress ferro-resonannce and keep open-delta residual voltage below 1V.
In 0.02s following primary short circuit to ground, the secondary residual voltage can drop to below 5% of the peak voltage before short-circuit, which meets the requirements of quick relay protection device.
The quality is reliable for good dielectric and insulation material, advanced design and vacuum impregnation, and excellent partial discharge
