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Oil Immersed Filled Industrial Inductive Voltage Transformer IVT VT PT Manufacturer Factory Price ISO9001 Inductive Voltage Transformers

PRODUCT INTRODUCTION

Oil Immersed Inductive Voltage Transformer 110kV, shall be suitable for measurement control and relay protection in the outdoor AC power system of nominal voltage 40.5~252kV, and frequency of 50 or 60Hz.

PRODUCT DETAILS

Inductive instrument transformer of JDX series shall be suitable for measurement control and relay protection in the outdoor AC power system of nominal voltage 40.5~252kV, and frequency of 50 or 60Hz, this type voltage transformers are oil immersed electromagnetic voltage transformer. The core was used cold-rolled silicon steel strip to folded single-column and three pairs of the same potential with the ground. High voltage coil main insulation chose sheet paper, small oil clearance and large structures. It was wounded as pagoda-shaped segments. High-voltage leads were insulated by a condenser bushing. We select corrugated metal expander as oil temperature variation compensator and can inspect the oil level through window. Fuel tank and the lower tank welded together, and all the other seals are made of sealed limit, effectively preventing the leakage of oil. Outline dimensions drawing and structure shown in Figure 1

SH Brand Industrial Voltage Transformers

一、Service Conditions

a. Ambient air temperature: maximum 40℃, minimum -40℃, average value of the ambient air temperature does not exceed 30℃ measured during a period of 24h.

b. Altitude: The altitude does not exceed 1000m (this is the routine requirement, if there is any different requirement, we can provide the products with 2000m, 3000m, 4000m or 5000m altitude according to the clients’ requriments).

c. The average value of the relative humidity does not exceed 95% at 25℃ measured during a period of one month.

d. The maximum wind speed does not exceed 34m/s.

e. Eerthquake intensity does not exceed 8 degree.

f. There have to be no gas that may seriously affect the insulation and conductive ability of electric equipments, steam,  ash, salt, chemical deposit, pollution and corrosive or explosive material.

二、Main Technical Parameters

  1. Rated frequency: 50Hz or 60Hz
  2. Rated primary voltage:35/√3, 66/√3, 110/√3, 132 /√3, 150 /√3, 220 /√3kV
  3. Secodary voltage for metering cores:100/√3, 110 /√3, 120 /√3, 150 /√3kV
  4. Secondary voltage for protective cores:100/√3, 110 /√3, 120 /√3, 150 /√3kV
  5. Residual voltage winding: 100,110,120,150 V
  6. Accuracy class for metering cores: 0.2,0.5
  7. Accuracy class for protective cores: 3P,6P
  8. Accuracy class for residual cores: 3P,6P
  9. Rated output for metering: 50,100,150,200 VA
  10. Rated output for protective cores: 50,100,150,200 VA 
  11. Rated output for residual winding: 100,200,300 VA
  12. Thermal limited burden: 1000VA 
  13. Ambient air temperature: -40 ℃~40 ℃
  14. Altitude: 1000m, if need to design exceed 1000m, please declare in the order.

三、Arcing distance and creepage distance of outer insulation please see table 1.

Rated voltage

(kV)

Arcing distance

(mm)

Creepage Distance (mm)

Pollution Level Ⅱ (W1)

Pollution Level Ⅲ (W2)

Pollution Level (W3)

35

≥410

≥810

≥1013

≥1256

66

≥720

≥1450

≥1813

≥2248

110

≥1010

≥2520

≥3150

≥3906

132

≥1160

2900

3625

4495

150

≥1350

3400

4250

5270

220

≥2010

≥5040

≥6300

≥7812

四、Insulation requirements for the primaries please see table 2.

Rated voltage (kV)

35

66

110

132

150

220

Power-frequency withstand voltage (r.m.s)   (kV)

95

160

230

275

325

460

The wet   test for the current transformer of power-frequency withstand (r.m.s) (kV)

95

160

230

275

325

460

Rated   switching impulse withstand voltage (peak) (kV)

Rated   lightning impulse withstand voltage (peak) (kV)

200

325

550

650

750

1050

Chopped   ligtning impulse voltage (peak) (kV)

230

373

635

750

865

1208

Partial discharge level

Prestressing performed voltage (r.m.s) (kV)

76

112

184

220

260

368

Test   voltage 1.2Um or Um (kV) PD≤10pC

49

87

126

145

170

252

Test   voltage 1.2Um/√3 (kV) PD≤5pC

28

50

87

100.5

118

174

 五、Mechanical requirements for the primary terminals please see table 3.

Rated voltage (kV)

35

66

110

132

150

220

Mechanical requirements (horizontal of two   directions and vertical) (N)

Load

500

1000

1000

1000

1250

Applied   to the primary terminals with duration (s)

60

60

60

60

60

六、Dimensions of Inductive Voltage Transformer

1.The outline and installation dimensions please see drawing 1.

The demonstration of the vt transformer

2. The dimensions of the primary termanils please see table 4.

Rated   Voltage (kV)

A (mm)

B (mm)

C (mm)

D (mm)

E (mm)

35

1230

550

650

400

16

66

1850

700

670

500

20

110

2250

850

810

550

20

132

2450

900

860

600

20

150

2690

960

900

700

24

220

3520

1050

950

850

24

 Note: There may be any change of the dimensions for the inductive voltage transformer because of renewing, the clients must basis on the updated drawings.

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