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Oil Filled Immersed Insustrial Inductive Voltage Transformer VT IVT PT Manufacturer factory price ISO9001 Inductive Voltage Transformers

PRODUCT INTRODUCTION

Oil Immersed Inductive Voltage Transformer 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.

Sihui Low Voltage to High 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:66/3, 110/3, 132/3, 150/3 kV
  3. Secondary voltage for metering:100/3, 110/3, 120/3, 150/3V                      
  4. Secondary voltage for protection: 100/3, 110/3, 120/3, 150/3V
  5. Residual winding voltage: 100,110,120,150 V
  6. Accuracy class for metering: 0.2,0.5
  7. Accuracy class for protction: 3P,6P
  8. Accuracy class for residual winding: 3P,6P
  9. Rated output for metering: 50,100,150,200 VA
  10. Rated output for protaction: 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.

Note:System earthing conditions: Non-effectively earthed neutral system and effectively earthed neutral system.

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

140

230

275

325

460

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

95

140

230

275

325

460

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/ (kV) PD≤5pC

28

50

87

100.5

118

175

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

1000

Applied   to the primary terminals with duration (s)

60

60

60

60

60

六、Dimensions Of The Inductive Voltage Transformer

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

 

The demonstration of the voltage transformer

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

Rated Voltage

kV

H1

mm

H2

mm

A

mm

B

mm

C

mm

D

mm

35

1340

410

550

700

450

20

66

1720

720

550

700

450

20

110

2090

1010

670

710

450

20

132

2240

1160

670

710

450

20

150

2430

1350

670

710

450

20

220

3860

2010

680

900

600

24

Notes: 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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