Ring Main Fuse-switch Combination
- Company Name:EN Technologies Inc.
- Membership:Free Member
- Member Since:2007. 08.31
- Country/Region:Korea
- City:Gyeonggi-do
- Contact:Yang-gyun Kim
- Related Keywords:fuse switch
EN Technologies Inc.
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Contact us
EN Technologies Inc.
[Korea]
- Address
- 102-1101, SK Ventium, 522, Dangjeong-dong Gunpo-si Gyeonggi-do
- Phone
- 82-2-4203810
- Contact name
- Yang-gyun Kim
Quick Information
- Model Number : EN RMF series
Description
Typical uses
- Simple outdoor substation, customer transfer substations and distribution
substations
- Industrial plants and underground stations
Highly Reliability
- At atmospheric gas pressure, it ensure the rated insulation and interruption
capabilities.
- Pure puffer techniques, no leakage current path between open contacts.
- Switchgear vessel made of stainless steel
- Maintenance-free concept
- SF6 gas insulation and interruption.
- Sealed pressure system
- Climate-independent
Safety
- Operation interlock with manual shutter
- Safe-to-touch and hermetically sealed enclosure
- HV parts are only accessible when outgoing feeders are earthed
- Overpressure relief device
- Pad lock
- Easy installstion and operation
- The speed of close/open is independent of the speed of lever movement.
Specification
|
Ambient temperature
|
-25~70°C
|
|
Relative humidity
|
0~95%
|
|
Maximum altitude
|
2000m
|
|
Rated voltage
|
12kV
|
|
Rated frequency
|
50Hz
|
| Mechanical endurance | |
|
Switch manual
|
5,000CO
|
|
Earthing Switch
|
1,000CO
|
| Dielectric tests | |
|
Lighting impulse
|
85/95kV
|
|
Power frequency 1mm
|
42/49kV
|
| Short-circuit tests | |
|
Main circuit switch
|
25kA 2sec(63kA peak)
|
|
Earthing Switch
|
25kA 1sec(63kA peak)
|
| Make-break tests | |
|
Active load
|
630A
|
|
Closed loop
|
630A
|
|
Cable charging
|
25A
|
|
Line charging
|
2.5A
|
|
Earthing fault
|
30A
|
|
Transfer current
|
1550A
|
| Making tests | |
|
Switch
|
63kA peak, 3C
|
|
Fuse-switch combination
|
31.5kA
|
| Temperature rise test | |
|
Main circuit switch
|
630A
|
|
Fuse-switch combination
|
125A
|
| Gas leak test | |
|
Leak rate
|
less than 0.1% per year
|
|
Rated filling pressure
|
0.3kgG/cm2
|
| Protection class | |
|
Tank
|
IP67
|
|
Fuse Door, Cable compartment
|
IP3X
|
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