HEP-12/1250/1600-25B

Rated voltage

额定电压

kV

12

Rated current

额定电流

A

1250/1600

Rated frequency

额定频率

Hz

50/60

Short time power frequency withstand voltage (1min)

额定短时(1min)工频耐受电压

kV

48

Rated lightning impulse withstand voltage

额定雷电冲击耐受电压

kV

85

Rated short circuit breaking current

额定短路开断电流

kA

25

Rated short circuit making current(peak)

额定短路关合电流（峰值）

kA

63

Breaking operations of rated short circuit breaking current

额定短路开断电流开断次数

Times

30

Rated breaking current of capacitor bank

额定电容器组开断电流

A

630

Rated short time withstand current

额定短时耐受电流

kA

25

Rated peak withstand current

额定峰值耐受电流

kA

63

Rated duration of short circuit

额定短路持续时间

s

4

Mechanical endurance

机械寿命

Times

20000

Closing force due to bellow and atmosphere

触头自闭力

N

140±50

Force required to hold contaCTs open at full stroke

触头额定开距时的反力

N

230±50

Circuit resistance at minimum contact force

额定触头压力下限时的回路电阻

μΩ

≤25

Storage time

贮存期

Years

20

Contact limit erosion

触头允许磨损厚度

mm

3

1.

触头开距 Clearance between opening contacts

mm

9±1

2.

触头接触行程 Contacts travel

mm

3.5±0.5

3.

平均分闸速度 Average opening speed

m/s

1.0±0.2

4.

平均合闸速度 Average closing speed

m/s

0.6±0.1

5.

额定触头压力 Rated contacts pressure

N

2500±200

6.

触头合闸弹跳时间 Contacts bouncing duration at closing operation

ms

≤ 2

7.

触头合闸及分闸不同期性

Closing and opening non-simultaneity of three phase contacts

ms

≤ 1