220KV Inductive Voltage Transformer

Liugao is a voltage transformer manufacturer with 15 years of professional experience. This voltage transformer is designed and manufactured based on IEC 61869-1/3. 220kV Inductive Voltage Transformer is for Turnkey Substation use,outdoor rated distribution class inductive voltage transformers are of compact single-phase designs and intended for connection between phase and ground (single bushing) to provide critical voltage measurement information. Hermetic sealing of the design is accomplished using a gas cushion above the oil to prevent free-breathing outside moisture-laden air.

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Product Description

Liugao is a voltage transformer Suppliers with 15 years of professional experience

Liugao recognized as a Famous Trademark of China.

Our voltage transformer is designed and manufactured based on IEC 61869-1/3. 220kV Inductive Voltage Transformer is for Turnkey Substation use,outdoor rated distribution class inductive voltage transformers are of compact single-phase designs and intended for connection between phase and ground (single bushing) to provide critical voltage measurement information. Hermetic sealing of the design is accomplished using a gas cushion above the oil to prevent free-breathing outside moisture-laden air.

Operating Environment

Installation elevation does not exceed 2000 meters

Ambient temperature: -5°C-40°C; The average temperature is not higher than +35°C

The installation site should be dry and ventilated; The relative humidity of the air is not greater than 80%, and there is no aggressive explosive media around

Product Characteristics

It is oil/paper insulation structure. The main insulation is wound by high voltagecable paper, and is placed several capacitor screen of voltage division in the primaryinsulation,which can improve electric field distributing and decrease theconsumption of insulation material, immersed with voltage transformer oil after desiccatingunder vacuum. It has advantages of stable and reliable performance of insulation. rich operated experience, long service time. Perfect fluidity performance of voltage transformer oil is good for heat dissipation, it alsohas self recover ability for the failure of partial discharge caused by air bubble

and dust.

Hermetically sealed stainless steel metallic bellows is installed on the top, whichprotect the voltage transformer oil from moisture and extend the life time. also there is a oillevel gauge on the bellows for observing the changing of oil volume. There is a multi function oil drain valve on the base, which make it more convenientfor oil sampling, drainingThe current ratio can be adjusted easily by changing the connecting plate to seriesor parallel connection.

All adopted insulation parts are environmental protection materialsSecondary terminal board is made of epoxy casting, the sealing performance ismore reliable.

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

Fasteners and nameplate are stainless steel

Specification

Product Name	220kV Voltage Transformer
Origin	Dalian, CN (Mainland)
Phase	Single
Coil Structure	Toroidal
Coil Number	1月4日
Color	Brown/Grey
Frequency	50/60Hz
Certification	ASTA/CTQC/IEC/SGS/ISO9001
Package	Wooden Carton
Delivery Time:	30 days

Rated primary voltage, kV	220 or 230/√3
Highest voltage for equipment, kV	245/252
Rated frequency, Hz	50；60
Rated power frequency withstand voltage, kV	460
Rated lightning impulse voltage, kV	1050
Flashover distance, mm	2000
Cree. distance, mm	W1:5040
	W2:6300
	W3:7820
Mechanical load, N	1250
Rated secondary voltage, kV	0.115/√3 or 0.11/√3 or 0.1/√3
Secondary terminal marks	1a-1n	2a-2n	da-dn
Accuracy class	0.2	0.5	3P
Rated output, VA	100	250	300
	150	150	300
	150	-	300
Thermal limiting output, VA	2000
Rated voltage factor	1.2continuous; 1.9/8h (66kV)
	1.2continuous; 1.5/30s(110~230kV)
Dielectric dissipation factor tgδ, under 10kV	Product tgδ≤0.02; frame tgδ≤0.05