Shinsung Industrial Electric Co., Ltd.
5 1

Ring Main Circuit Breaker

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Shinsung Industrial Electric Co., Ltd.
[Korea]

Address
190-4, Soohyang-ri, Sungwhan-eup, Cheonan-si, Chungcheongnam-do
Phone
82-41-5825029
Contact name
Jung-seok Park

Quick Information

  • Place of Origin: Republic of Korea
  • Model Number : SMCB

Description

Outstanding Features

SMCB Ring Main Circuit Breaker is pad mounted fully deadfront switchgear for up to 25.8kV, 630A underground system, combining puffer load break switches and vacuum fault interrupters. SMCB series switchgear incorporates grounding switches in every ways to provide safety and faster operation.

Every bushing in this switchgear is installed with one set of CT and voltage sensor each, so all the electrical values of connected distribution system can be measured. And, combined with SCADA-mate control based on SEL-551 relay or SEL-501-2 relay and RTU, this switchgear can be remotely operated from system control center.

  • Field proven vacuum Interrupter ensures the safety and life- long interruption
  • SF6 Gas Insulation Media which is enclosed in stainless steel tank sealed for life and maintenance free with less than 0.2% leakage rate per year
  • Normal insulation and interruption performance even at an atmospheric gas pressure
  • Unique and field proven puffer and heavy duty tulip-shaped contacts
  • Internal power source through integrated capacitor-potential transformer combination for the control circuit's power
  • Three phase group-operated mechanism offers regular close-open speed regardless of operating speed or method (manual or electrical)
  • Front ground circuit bushings in every way offer easy cable testing
  • Deadfront design and mechanical interlock between main and earth switch provides a high level of safety and efficient maintenance.
  • Spring charge mechanism for fault interrupters ensures rapid O-CO performance

Specifications

Description
SMCB-16
SMCB-26
Maximum System Voltage
15 Kv
25.8kV
Rated Continuous Current
630 A
630 A
Electrical Operating Time of CB (Close/Open)
60/25ms
60/25ms
Electrical Operating Time of LBS (Close/Open)
700 ms each
700 ms each
Minimum Clearing Time of CB
2.7 cycle
2.7cycle
Number of Mechanical Operations of CB
Number of Mechanical Operations of LBS
Number of Mechanical Operations of Ground
2,000 times
5,000 times
1,000 times
2,000 times
5,000 times
1,000 times
Short Time Withstand Current ( rms)
20 kA (4 sec)
12.5 kA (3sec)
Breaking Capacity of CB
20 kA
12.5kA
Insulation Level
Lightning Impulse Withstand Voltage
95 kV BIL
125 kV BIL
Power Frequency Withstand Voltage
50 kV
60 kV
DC Voltage Withstand Voltage
53 kV
78 kV
Partial Discharge Extinction Level
19 kV
19 kV
Weight without Outer Enclosure
670 Kg (2CB 2SW)


Packaging & Delivery

  • Packing :Wood packing
  • Minimum Order : 3units

Product Image

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