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Head Office : No. 27 Dongxing Road ,Weinan High Technology Industrial Zone ,Shaanxi
Factory address: West Dongfeng Dajie Road ,Weinan High Technology Industrial Zone ,Shaanxi
P.C. : 714000
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Outdoor High-voltage Wireless Automatic Sectionalizer

Outdoor High-voltage Wireless Automatic Sectionalizer
1.Rot proof, reliable operation for all-weather, all metal parts are made from copper and stainless steel.
2.It can isolate fault line automatically to ensure healthy line operating normally.
3.Isolates temporary faults preventing extensive outages.
4.Easy installation just like drop down fuse, reliable operation.
Product Details


1.OVERVIEW 

The sectionalizer is applied in three phase power system with AC 50Hz and rated voltage 10-40.5kV. It is installed on distribution overhead line to isolate fault when corporate with recloser or circuit breaker. When fault occurs on the line, the faults current reaches or exceed preset threshold value, the sectionalizer can memorize the tripping times of upstream recloser. When it reaches preset times, it drops down to trip automatically.

Sectionaliser will drop down to trip automatically on the condition as given below:First,the faults current exceeds presetting pickup current. Next, the counting time reaches presetting value (1, 2, 3 or 4). Third, the circuit loses voltage and the current is lower than 300mA. And then the Sectionlizer will trip automatically when the aforesaid conditions occur simultaneously. If any of aforesaid conditions doesn’t occur, the Sectionlaizer will not trip automatically.This sectionalizer uses micro-computer and operating trip mechanism and does not require external auxiliary supply.

2.ENVIRONMENTAL CONDITION
   2.1Ambient temperature:-40℃ - +60℃

   2.2Altitude:3000m
   2.3Wind pressure: not more than 700Pa
3.TECHNICAL DATA
 

S/N

Name

Unit

FDK10-15/D200

FDK10-27/D200-10

FDK10-40.5/D200

  1

  Rated voltage

KV

15

27

40.5

  2

  Rated current

A

200

200

200

  3

  Rated frequency

Hz

50

50

50

  4

  Pickup current rating

A

8~400A

8~400A

8~400A

  5

  Short time withstand current(RMS)

KA

10

10

10

  6

  Short circuit withstand time

s

1

1

1

  7

  Short time withstand current (PEAK)

KA

16

16

20

  8

  Operability of operation counts

times

1, 2, 3,4

1, 2, 3,4

1, 2, 3,4

  9

  Max memory time

S

20

20

20

  10

  Max reset time

S

20

20

20

  11

Permissible deviation of pick  up  current for memory rest time

%

±10

±10

±10

  12

  Opening time

ms

≤200

≤200

≤200

  13

  Main circuit resistance

μ Ω

≤400

≤400

≤400

  14

  Mechanic life

Time

500

500

500

  15

  Horizontal pulling force of terminal

N

250

250

250

16

  Manual open force

N

≤120

≤120

≤120

17

  BIL(phase to ground)

kV

110

150

185

18

  BIL(between gap)

kV

110

150

220

19

  PFWV(phase to ground)

dry

kV

55

60

95

wet

45

50

80

20

  PFWV(between gap)

dry

kV

55

60

110

wet

45

50

95

21

  PFWV of control circuit

kV

2

2

2

22

  Dirty proof grade

Class

23

  Ice proof thickness

mm

≤1

≤1

≤1

24

  Pickup current (four classes) and     Counting time can be set


yes

yes

yes

25

  Mechanical interlocking for 3   phase  devices and automatic reset


yes

yes

yes

 


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