BKE Electric Company
manufactures the state-of-the-art 
Pad-mounted for 12kV electric distribution
system. These switches can be integrated
into a modern electric distribution
network to provide loop power, isolate
faulted area automatically and sectionalize
cable lines. When equipped with FTU
and communication devices, these switches
can be controlled remotely by a Distribution
Automation master station. |
|
·Utilizing
as the insulating and arch-extinction
medium.
·Utilizing 5 mm stainless steel tank
for small volume, lightweight, short
arch-extinction time, durable contacts
and free from maintenance.
·Equipped with view window to provide
intuitive viewing of the cut-off point.
·Both loadbreak and grounding switches
are housed in a sealed casing and the
terminals can be connected to separable
cable accessories, conforming to all
protection requirements.
·The compartment is compact, small
volume, easy to access, convenient for
operation and free of maintenance.
·Manual and motor operations are available
options. Can be integrated into a Distribution
Automation system by adding RTU/FTU.
·Manually operated switches are upgradeable
to motor (automatic) operated in system
expansion. |
|
·Utilizing
as the insulating and arch-extinction medium.
·Utilizing
5 mm stainless steel tank for small volume,
lightweight, short arch-extinction time,
durable contacts and free from maintenance.
·Applying
3-phase integrated, compressed-air structure,
reducing arch-extinction time and down time.
·The main
and grounding switches are independently
operated, ensuring high service reliability
and safe operation.
·Every circuit
breaker is independently protected by its
own relay. Relay operations are triggered
through the secondary current of the CT
inside. Operators can modify the opening/closing
criteria by adjusting the control on the
panel based upon the TCC.
·The protective
circuits have back up batteries to prevent
overcharge and discharge.
·The compartment
is compact, small volume, easy to access,
convenient for operation and free of maintenance.
·Each switch
is equipped with motor operating mechanism
to operate the circuit-breaker.
·The control
source of motor control box is 24 V, DC,
through output PT. The DC source is obtained
from converting an AC source. The configuration
of the charging line is two-way input and
one single way output. The two way input
sources are interlocked to ensure the reliability
of operation source.
·Manually
operated switches are upgradeable to motor
(automatic) operated in system expansion.
·Operating
counts indicating opens/closes are can be
viewed by the operator.
·Utilizing
as the insulating and arch-extinction
medium.
·Utilizing 5 mm stainless steel tank
for small volume, lightweight, short
arch-extinction time, durable contacts
and free from maintenance.
·Applying 3-phase integrated, compressed-air
structure, reducing arch-extinction
time and down time.
·The compartment is compact, small
volume, easy to access, convenient for
operation and free of maintenance.
·Conforming to all protection requirements.
·The operating device and fuse chamber
are interlocked. When the door is opened,
the close operation cannot be initiated,
ensuring safe and reliable operation. |
|
| Rated
Voltage |
12kV
|
| Rated
Current |
630A
|
| Rated
Frequency |
50Hz
|
| Rated
Breaking Current |
630A
|
| Rated
Short-time Withstand Current |
20/3s
|
| Peak
Withstand Current |
50kA
|
| Frequency
Insulation Feature of Phase- to -phase
and Phase-to-earth |
42kV
|
| Frequency
Insulation Feature of Insulation Breaker |
48kV
|
| Impulse
Insulation Feature of Phase- to -phase
and Phase-to-earth |
95kV
|
| Impulse
Insulation Feature of Insulation Breaker |
110kV
|
| Mechanical
Operation Times |
＞5000
|
| Operation
Times In Full Load-break |
＞200
|
| Rated
Gas Pressure(20℃) |
7PSI.G
|
| Yearly
Leakage Rate of |
＜0.1%
|
| Rated
Voltage |
12kV
|
| Rated
Current |
630A
|
| Rated
Frequency |
50Hz
|
| Rated
Short-time Withstand Current |
20/4s
|
| Rated
BIL |
75kV
|
| AC
Withstand Voltage (1min) |
42/48kV
|
| Rated
Load-break Current |
630A
|
| Magnetic
Current |
21A
|
| Cable-charging
Current |
25A
|
| Closing-loop
Breaking Current |
630A
|
| Breaking
Current |
20kA
|
| Making
Current |
50kA
|
| Mechanical
Operation Times |
10000
|
| Operation
Times In Full Load-break |
2000
|
| Rated
Gas Pressure(20℃) |
7PSI.G
|
| Yearly
Leakage Rate of |
＜0.1%
|
| Rated
Voltage |
12kV
|
| Rated
Frequency |
50Hz
|
| Peak
BIL of Phase- to -phase and Phase-to-earth |
75kV
|
| Peak
BIL of Insulation Breaker |
85kV
|
| AC
Withstand Voltage of Phase- to -phase
and Phase-to-earth |
42kV
|
| AC
Withstand Voltage of Insulation Breaker |
48kV
|
| Load-break
Switch |
Rated Current |
630kA
|
| Rated
Short-time Withstand Current(2S) |
20kA
|
| Rated
Peak Withstand Current |
50kA
|
| Rated
Short-circuit Making Current |
50kA
|
| Rated
Current Opening Times |
＞200
|
| Grouding
Switch |
Rated
Short-time Withstand Current(2S) |
20kA
|
| Rated
Peak Withstand Current |
50kA
|
| Rated
Short-circuit Making Current |
50kA
|
| Fuse |
Rated
Current |
125A
|
| Rated
Breaking Current |
31.5kA
|
| Service
Life |
＞5000
|
| Protective
Rate of Cable Connector |
IP67
|
| Rated
Gas Pressure(20℃) |
7PSI.G
|
| Yearly
Leakage Rate of |
＜0.1%
|
|
