20KV Neutral Current Transformer
Boerstn Electric Co.,Ltd is one of the toppest 20KV Neutral Current Transformer in China.During these years of exporting , Boerstn Electric Co.,Ltd now has rich experience in the worldwide markets
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  • PRODUCT DETAILS
This type of transformer is applicable to electric power systems of 5oHz and 11ok,used for current, electric energy measuring and replayingprotection.
This type of product is equipped with metal expander, ful-sealed structure, primary winding has U-shaped capacitor type insulation structure, hasadvantages of uniform electric field distribution, low dielectric dissipation rate, low partial discharge quantity, secondary winding usually has 3-6windings, class can be combined at random, we could produce urrent transtormers of measurement class accuracy of 0.2S for special purposesaccording to user's requirements.
This type of product is of outdoor type, ambient temperature -30°C ~+40°C.

LB6-110(LCWB6-110)is suitable for areas of altitude up to 1000m;LB6-110W2(LCWB6-110W2) is suitable for polluted areas of altitude up to 1000m;LB6-110GY(LCWB6-110GY) is suitable for plateau areas of altitude up to 3500m;LB6-110GYW2(LCWB6-110GYW2) is suitable for polluted plateau areas of altitude up to 3500m.

No.

Item

Unit

Guaranteed value

1

Model


LB-24

2

Type


Outdoor、single phase、oil immersed

3

Manufacturer


Boerstn Electric Co.,Ltd

4

Origin


China

5

Applicable standard


IEC 61869-2

6

Applicable altitude

m

≤1000

7

Applicable ambient temperature

-40~+45

8

Insulation level

kV

24/65/125

9

Rated frequency

Hz

50

10

System rated primary voltage

kV

20

11

System max voltage

kV

24

12

Rated primary current

A

800-1600

Rated secondary current

A

1

Winding


rated primary current ratio (A)

Accuracy class

rated secondary output


(VA)

1S1,1S2,1S3


800-1600/1A

5P20

30






13

power frequency withstand voltage of primary terminal

kV

65

14

lightning impulse (peak value)

kV

125

15

switching impulse (peak value)

kV

/

16

Partial discharge level

PC

1.2Um/√3

≤5

Um

≤10

17

Dielectric loss


10

680.21PF

0.18%

18

Winding temperature rise

K

30

19

Primary winding material


Copper

20

Secondary winding material


Copper

21

Primary terminal pulling force

N

2000

22

External insulation type


High-strength porcelain/Brown

23

Pollution class


E

24

Mininum creepage distance

mm

1150

25

Minimum dry arc distance

mm

≥780

26

Seismic resistance level


≥0.3g

27

Radio inferference

μV

≤1000

28

Insulation oil type/oil weight


45# transformer oil/60kg

29

Transportation weight/N.W

kg

320/260

30

Transportation dimension(L×W×H)

mm

820×820*1820

Note: 1. Measurement class and protection class full-tap products are available at request.

2. Digts in()in the column of ol weight and gross weligtht mean the oil welight and sross welght of LCwB6- 11oCWW2 products, digits in ()of ratedoutput mean the rated output when the rated secondary currentis 1A, digits in()of rated primary current mean the tapping current.

1. Expander
2. Oil level window hole
3. Primary outgoing terminal
4. Connecting plate
5. Porcelain sleeve
6.Fuel tank
7. Secondary junction box
8. Nameplate
9.Grounding
10.Oildrainvalve
11. Secondary outlet hole O thirty

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