Description:
Type ZW7-36 outdoor high-voltage vacuum circuit breaker is a kind of outdoor high-voltage switchgear under three-phase AC 50Hz, 36kv rated voltage and below. It can be used to switch on and off the loading, overloading and short-circuit current.
Features:
1. Storage, making and breaking by motor, It can operating by handle.
2. Breaking short-circuit current up to 25kA.
3. Mini motor spring mechanism (about 30W).
4. Installation method: adopt two type installation method.
5. Sealing performance: adopt reliable sealing technical.
6. Incoming & Outgoing method: adopt silicon bushing to make enough insulate distance.
7. Safe operating: there is an equipment to protect explosion.
Techincal data:
|
No.
|
Item
|
Unit
|
Data
|
|
1
|
Rated voltage
|
KV
|
36
|
|
2
|
Rated current
|
A
|
1250,1600,2000
|
|
3
|
Rated short-circuit breaking current
|
KA
|
20,25,31.5
|
|
4
|
Rated insulation level
|
Power frequency withstand voltage
|
Dry
|
KV
|
95
|
|
Wet
|
KV
|
80
|
|
Lightning impulse withstand voltage (peak value)
|
KV
|
185
|
|
5
|
Rated operating sequence
|
|
O-0.3s-CO-180s-CO
|
|
6
|
Rated capacitor group breaking current
|
A
|
400
|
|
7
|
Rated short-circuit breaking current
|
Time
|
20
|
|
8
|
Rated peak withstand current
|
KA
|
50,63,80
|
|
9
|
Rated short - time withstand current
|
KA
|
20,25,31.5
|
|
10
|
Rated Short-circuit Continuing Time
|
S
|
4
|
|
11
|
Machinery life
|
Time
|
10000
|
|
12
|
Permissible gross wearing thickness for dynamic/static contacts
|
mm
|
3
|
|
