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> PRODUCT > Switchgear > MCSG
Seojeon’s Metal Clad Switchgear rated from 12 to 25.8 kV designed for indoor and outdoor use.
Our traditional and arc resistant switchgear technology is designed for easy access,
Cut operation cost, and maintenance and space savings in an environmentally responsible package.
Fully type-tested according to IEC 62271-200
power plant (hydroelectric. thermoelectric, cogeneration), industrial plant (semiconductor, petro chemistry, steel manufacturing)
and social overhead capital facility (subway, railway, airport), etc.
We provide safety to customer whose first priority is safety and drastically reduce installation area.
Removed explosion or spread effect to neighboring device in case of internal Arc accident as the MCSB with the best IP
protection ratings among air insulation metal enclosed switchgear
MCSB of Seojeon Electric Machinery Co. is approved by Korea Electro technology Research Institute (KERI) in terms of its reliability and safety.
Prevention and maintenance of facility are required for all switchgears,
so Seojeon Electric Machinery Co. Ltd. conducts comprehensive prevention
and maintenance activity from continuous repairing and inspection to expecting
and rationalizing residual life.
Extra-high tension metal closed switchgear (MCSG) of Seojeon provides structural convenience
in maintenance and inspection.
With electronic distribution panel adopting the digital power protection monitoring device, supervisory control and data acquisition (SCADA) and data link are available.
Form | Specification | |||||
---|---|---|---|---|---|---|
Designation | SJP-M-R12 | SJP-M-R24 | ||||
Rated Voltage (kV) | 12 | 24/25.8 | ||||
Rated frequency (Hz) | 50, 60 | 50, 60 | ||||
Power frequency withstanding voltage (kV/1min) | 28 | 50/60 | ||||
Impulse withstanding voltage (kV[12x50㎲) | 75 | 125 | ||||
Rated short time current (kA/s) | 25/3 | 40/3 | 25/3 | |||
Protection grade | IP4X | IP4X | ||||
Internal arc current (kA/s) | - | 40/1 | 25/1 | |||
Rated current (A) | 630/1250/2000 | 1250/2000 | 3150 | 630/1250 | 2000 | |
Size (mm) | W | 600 | 650 | 850 | 800 | 1000 |
H | 2250 | 2250 | 2250 | 2250 | 2250 | |
D | 1800 | 1900 | 1900 | 2000 | 2000 | |
Certification | KERI | |||||
Standard | IEC 62271-2000 |
Form | Vacuum circuit breaker | ||
---|---|---|---|
Rated Voltage (kV) | 12 | 24/25.8 | |
Rated current (A) | 630, 1250, 2000, 3150 | 630, 1250, 2000 | |
Rated frequency (Hz) | 50, 60 | ||
Rated breaking current (kA) | 20/25/31.5/40 | 12.5/25 | |
Rated short time current (kA/3sec) | 20/25/31.5/40 | 12.5/25 | |
Rated making current (kA) | 2.5XRated breaking current(50Hz), 2.6XRated breaking current(60Hz) |
||
Specification shutoff time (Cycle) | 3 | ||
Specification opening time (sec) | ≤0.04 | ||
no-load closing time (sec) | ≤0.06 | ||
With standing voltage (kV) | Power frequency (1min) | 28 | 50/60 |
impulse (1.2x50㎲) | 75 | 125 | |
U duty | High-speed reclosing | O-0.3x-CO-3min-CO | |
Switching test grade | Mechanical | M2 | |
Electrical | E2 | ||
Phase interval current switching | C2 | ||
Auxiliary contact | 4a4b, 10a10b(in ordering) | ||
Installation method | Lead-out type | ||
Classfication | IEC-62271-100 | ||
Development time point | KERI |
Form | Epoxy mold | ||
---|---|---|---|
Rated Voltage (kV) | 12 | 24 | |
Specification current ratio (primary/secondary, A) | 25 ~ 2,000/5 | ||
Precision | more than 5P10 | ||
Specification load (VA) | 5 ~ 30 | ||
Insulation voltage (kV) | Power frequency (1min) | 28 | 50 |
Lightning impulse (1.2x50㎲) | 75 | 125 |
Form | Epoxy mold | ||
---|---|---|---|
Specification current ratio (V) | Primary | 11,000/√3 | 22,900/√3 |
Secondary | 110 | ||
Precision | 1.0 | ||
Insulation voltage (kV) | Power frequency (1min) | 28 | 50 |
Lightning impulse (1.2x50㎲) | 75 | 125 |
Form | Epoxy mold | ||
---|---|---|---|
Rated Voltage (kV) | 12 | 24 | |
Specification short current (kA/3초) | 12.5/25 | ||
Insulation voltage (kV) | Power frequency (1min) | 28 | 50 |
Lightning impulse (1.2x50㎲) | 75 | 125 |
With electronic distribution panel adopting the digital power protection monitoring device, supervisory control and data acquisition (SCADA) and data link are available.
Form | Epoxy mold | |
---|---|---|
Specification input / Specification load | Voltage | 110/0.5VA |
Current | 5A/0.1VA | |
Control power | Voltage | DC 11V |
load (A) | Less than 30W (ordinary time) | |
Less than 70W (in operation) | ||
Measurement is possible | Measured amount | Voltage |
Current | ||
Active, reactive power | ||
Amount of active, reactive power | ||
Power factor | ||
Frequency | ||
High frequency | ||
Precision | 1.0 이상 * | |
Protection function | Excess current | |
Grounding and current | ||
Excess voltage | ||
Under voltage | ||
Grounding and voltage | ||
Directional grounding | ||
Communication function | Communication method | I-Net |
RS-485 | ||
TCP/IP | ||
Optic fiber | ||
Protocol | Modbus | |
DNP 3.0 | ||
TCP/IP | ||
IEC 61850 | ||
* It is changed according to applied device which is selected based on specification of customer's requirement |
MCSG of Seojeon secures specification of short-time current 3 seconds and internal arc 1 second as the distribution panel applied to up to 24/25.8kV.
Specification | IC (lead-out type PT Built) | FD | BT | BR | RP (lead-out type PT Built) | BP | |||
---|---|---|---|---|---|---|---|---|---|
Rated Voltage (kV) | 12 | 24/25.8 | |||||||
Rated current (A) | 630 | 630 | |||||||
1,250 | 1,250 | ||||||||
2,000 | 2,000 | ||||||||
3,150 | |||||||||
Rated frequency (Hz) | 50/60 | ||||||||
Rated breaking current (kA/3s) | 20/25/ 31.5/40 |
12.5/25 | |||||||
Specification insulation grade (kV) |
Power frequency withstanding voltage(1min) |
28 | 50/60 | ||||||
Impulse withstand voltage (1.2X50㎲) |
75 | 125 | |||||||
IP Protection Ratings | Out | IP41 | |||||||
Inside | IP2X | ||||||||
ALTS | LBS | MOF | IC (lead-out type PT built) | FD | |
---|---|---|---|---|---|
Diagram | |||||
Internal structure | |||||
For distribution panels except major incoming and feeder panel, apply general distribution panel. |