Capacitor Voltage Transformer (CVT)

36~765kV Capacitor Voltage Transformer are installed on 36~765kV earthed neutral electrical systems whose rated frequency is 50Hz or 60Hz to meter Voltage energy and provide relay protection signal.  Additionally, Capacitor Voltage Transformer serves as a coupling capacitor. Voltage Transformer consists of two assemblies: the capacitor sections and the electromagnetic components; It doesn’t subject to Ferro resonance oscillations with the network. At the same time, it has capability to control its own Ferro resonance oscillations; the capacitor has a small value of tanδ and temperature coefficient.

Standards
Voltage transformers are designed in accordance with IEC, DIN, ANSI, BS or other agreed standards.

Main technical parameters
Highest voltage for equipment: 36～765kV
Power frequency: 50 or 60 Hz
Rated secondary voltage：100/√3V, 110/√3V
Rated secondary voltage for the earthing core:100/3 V, 110/3 V or 100 V, 110V
Output of the metering class：100VA/0.2 ，150 VA /0,5
Output of the protection class：300VA/3P, 6P
Residual windings output：3P, 6P output: 200 VA
Ambient temperature: -40℃ to +40℃
Creepage distance: 25mm or 31mm/kV
Partial discharge level: <10pC

Main Parameter

Type	Highest system voltage	power frequency withstand voltage	lighting impulse test voltage	Capacitive divider capacitance
	kV (r.m.s)	kV(r.m.s)	kV (peak)	μF
TYD-36	36	70	170	20000 or 10000
TYD-72.5	72.5	140	325	20000 or 10000
TYD-123	123	230	550	20000 or 10000, 7000
TYD-145	145	275	650	20000 or 10000, 7000
TYD-170	170	325	750	10000 or 7000，5000
TYD-245	245	395	950	10000 or 7000, 5000
TYD-362	362	510	1175	5000
TYD-420	420	680	1550	5000
TYD-550	550	740	1675	5000
Indicatives values only- All indicated dimensions must be confirmed with order.