Email:i-trade1@lnjldq.com Liaoning Jinli Electric Power Electrical Appliance Co.,Ltd

Liaoning Jinli Electric Power Electrical Appliance Co.,Ltd

Neutral Point Linear Tap-changer

N eutral P oint L inear T ap-changer Tap changing can be effected when a) the transformers is on no- load and b) the load is still remains connected to the transformer. These are called off load tap changing and on load tap changing. The Off load tap changing relatively costs less. The tap...

Product Details

Neutral Point Linear Tap-changer 

Tap changing can be effected when a) the transformers is on no- load and b) the load is still remains connected to the transformer. These are called off load tap changing and on load tap changing. The Off load tap changing relatively costs less. The tap positions are changed when the transformer is taken out of the circuit and reconnected. The on-load tap changer on the other hand tries to change the taps without the interruption of the load current. In view of this requirement it normally costs more. A few schemes of on-load tap changing are now discussed.

With the quality range of Linear Type Tap Changer, we fulfill the demands of our respected customers. As we can understand the needs of the market, we offer the product at reasonable prices, in addition to this, we produce the desiring product on time. Further, we are an admired supplier and manufacturer of the market.

Today, Jinli company has become Dandong key scientific and technological enterprises and National high and new technology enterprise. The brand “JINLI” is famous brand of Liaoning Province. “Seek Survival with Quality, Seek development with innovation”. With advanced technology, strict management, high quality product, Jinli tap changer has achieved good public praise, customer’s recognition and trust in the market.

Model Explanation
 WST □ - □/□-□╳□
    W:  off-circuit
    S :  three-phase or D for single phase
    T :  linear type tap chager
    □:  voltage regulation model
    □:  rated current
    □:  rated voltage
    □:  number of tapping heads
    □:  number of tapping position

Voltage Regulation Model
    I  :  terminal point
    II :   central point
    III :  neutral point
   IV :  Y-△ conversion
   V :  series-parallel connection

Samples Technical Data

Specifications

WST 30

WST 63

WST 125

WST 250

WST 400

WST 500

Phase number

three-phases

Connection mode

Central point(Ⅱ) Neutral Point(Ⅲ) Terminal Point(Ⅰ)

Rated through current(A)

30

63

125

250

400

500

Short-circuit capacity

Heat stableness current(KA/2s)

0.7

1.6

2.5

3.75

4

5

Dynamic stableness current(KA)

1.8

4

6.25

9.375

10

12.5

           Rated frequency

50~60

Insulation level(KV)

Rated Voltage

10KV

20KV

35KV

Power-frequency withstand Voltage(50Hz/1min)

42KV

55KV

95KV

Impulse(1.2/50μs)

75KV

125KV

250KV

Sealing Performance(KPa/24h)

60

Machine life(Thousands of times)

2

Samples Installation Dimension

No.

Model No.

Regulating

position

Install dimension ( mm )

L

L1

L2

L3

L4

L5

H

H1

ΦD1

1

WSTⅢ63/10-3×3

Neutral

point

362

139

122

59

99

24

100

78

 

 

90

2

WSTⅢ125/10-3×3

394

149

133

59

107

29

100

78

3

WSTⅢ250/10-3×3

394

149

133

59

112

29

100

78

4

WSTⅢ63/20-3×3

362

139

122

59

99

24

120

98

5

WSTⅢ125/20-3×3

394

149

133

59

107

29

120

98

6

WSTⅢ250/20-3×3

446

169

144

59

112

34

120

98

7

WSTⅢ63/35-3×3

362

139

122

59

103

24

140

118

8

WSTⅢ125/35-3×3

424

159

143

59

107

34

140

118

9

WSTⅢ250/35-3×3

424

159

143

59

112

34

140

118

10

WSTⅢ63/10-5×5

506

187

170

59

99

24

100

78

11

WSTⅢ125/10-5×5

568

207

191

59

107

29

100

78

12

WSTⅢ250/10-5×5

568

207

191

59

112

29

100

78

13

WSTⅢ300/10-5×5

628

227

211

69

112

34

106

78

105

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