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33kV-220kV Capacitor Voltage Transformer

66kV Capacitor Voltage Transformer

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66kV Capacitor Voltage Transformer

TYD66/√3-0.001H

Category

33kV-220kV Capacitor Voltage Transformer

Keyword:

Capacitor

Voltage transformer

Outdoor

Single phased

 Domestic Sales： 0086-0411-83199993

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66kV Capacitor Voltage Transformer

Product description

Scope

It is outdoor, single phase and oil immersed capacitive voltage transformer, which is used for metering and relay protection of 33~230kV, 50 or 60Hz system. Capacitive voltage divider could be also used as coupling capacitor for the electric power line carrier communication.

Standards

◆IEC 61869-1; IEC 61869-5

Service conditions

◆Ambient temperature：-40~+45℃

◆Altitude：≤1000m (If above 1000m,the product will be customized according to user’s request)

◆Pollution level：Ⅱ, Ⅲ, Ⅳ

Design features

◆It consists of capacitor voltage divider and electromagnetic unit.

◆The capacitor divider is made up of one or several coupling capacitors in series.

◆H.V. terminal is at top of capacitor divider. Medium and low voltage terminal are in electromagnetic unit leading from porcelain housing onto electromagnetic unit.

◆The electromagnetic unit consists of neutral transformers, compensation reactor and damper which are sealed by oil in the tank, volume of oil and internal pressure are adjusted by air at top of tank. The regulating coil alongside the primary coil can regulate voltage error. Compensation reactor’s regulating coil can regulate error of phase. Secondary winding come out from terminal box in front of tank.

◆The products in filled with oil and sealed, it needn’t filter oil or change oil. Keep in mind not to destroy sealing of capacitor divider. If it has to sample oil, please refill equivalent oil in time. It needn’t sample oil as normal operating, otherwise it will cause harmful effect.

◆The capacitor divider can bear most of high voltage impulse with high insulation level.

◆The capacitor divider could be also used as coupling capacitor for the electric power line carrier communication.

◆The product is a capacitive type that won’t produce the power frequency resonance and ferro-resonnance in power system.

◆Advanced fast-saturable reactor damping technology. It could restrain the ferro-resonnance quickly and efficiently, and also ensure the transient response performance.

◆All adopted insulation parts are environmental protection material.

◆Secondary terminal board is made of epoxy casting, the seal performance is more reliable.

◆The base uses spray painting or hot galvanizing, which gives a high degree of corrosion resistance.

◆Fasteners and nameplate are stainless steel.

额定一次电压 Rated primary voltage, kV
设备最高电压 Highest voltage for equipment, kV
额定频率Rated frequency, Hz		50; 60
额定工频耐受电压 Rated power frequency withstand voltage, kV		95		140/160		230		275		325		460
额定雷电冲击耐受电压 Rated lightning impulse voltage, kV		200		325/350		550		650		750		1050
弧闪距离Flashover distance, mm		385		780		1050		1300		1300		2000
爬电距离Cree. distance, mm		W1:810 W2:1020 W3:1260		W1:1450 W2:1820 W3:2250		W1:2520 W2:3150 W3:3910		W1:2900 W2:3630 W3:4500		W1:3400 W2:4250 W3:5270		W1:5040 W2:6300 W3:7820
机械载荷Mechanical load, N		1250
额定二次电压Rated secondary voltage, kV
额定输出Rated output, VA	1a-1n:0.2	50	100		100		100		100		100
	2a-2n:0.5	50	100		150		150		150		150
	da-dn:3P	100	100		100		100		100		100
热极限输出 Thermal limiting output, VA		1000
额定电压因数Rated voltage factor		1.2/连续continuous; 1.9/8h (66kV) 1.2/连续continuous; 1.5/30s(110~220kV)
介质损耗因数tgδ，在10kV下 Dielectric dissipation factor tgδ, under 10kV		tgδ≤0.005