Tavrida Electric Three-Phase Vacuum Circuit Breakers

Tavrida VCB Three-Phase VCB Single-Phase VCB Withdrawable VCB Fundamentals

Three-Phase VCB Series - Technical Details

Rated Data ISM15_LD_1 ISM25_LD_1 ISM15_Shell_2 ISM25_Shell_2 ISM15_MD_1 ISM15_HD_1
Rated voltage (Ur), up to 15.5kV 27kV 15kV 27kV 15kV 15.5kV
Rated continuous current (Ir) to 1000A to 800A 2000A 2000A 1250A 3150A
Rated power frequency withstand voltage (Ud) 36kV 60kV 36kV 60kV 36kV 36kV
Rated lightning impulse withstand voltage (peak) (Up) 95kV 125kV 95kV 125kV 95kV 95kV
Rated short-circuit breaking current (Isc) 20kA 16kA 31.5kA 25kA 31.5kA 31.5kA
Rated peak withstand current (Ip, close and latch) 52kA 42kA 82kA 65kA 82kA 82kA
Rated short-time withstand current, 4s (Ik) 20kA 16kA 31.5kA 25kA 31.5kA 31.5kA
Rated frequency 50-60Hz
Switching Performance ISM15_LD_1 ISM25_LD_1 ISM15_Shell_2 ISM25_Shell_2 ISM15_MD_1 ISM15_HD_1
Mechanical life (CO cycles) 50 000 30 000 30 000 30 000 30 000 30 000
Operating cycles, rated current (CO cycles) 50 000 30 000 30 000 30 000 30 000 30 000
Electrical endurance, breaking current (O-CO cycles) 100 50 50 25 50 50
Closing time1 <30ms1 <35ms1 20ms1 35ms1 20ms1 25ms1
Opening time1 <15ms1 <15ms1 8ms1 8ms1 8ms1 8ms1
Rated operating sequence at rated normal current O-0.3s-CO-10s-CO-10s-CO
Rated operating sequence at rated short-circuit breaking current O-0.3s-CO-15s-CO
1 Switching module closing, opening and break times excluding control module recognition time.
Standards ISM15_LD_1 ISM25_LD_1 ISM15_Shell_2 ISM25_Shell_2 ISM15_MD_1 ISM15_HD_1
Design class with regard to severity of service conditions in accordance with IEC 60932 Class 1 Class 1 Class 1 Class 1 Class 0 Class 0
International testing standards IEC 62271-100, GB 1984-2003, ANSI C37.09
Mechanical vibration withstand capability according to IEC 60271, IEC 60068 Class 4M4
Other Data ISM15_LD_1 ISM25_LD_1 ISM15_Shell_2 ISM25_Shell_2 ISM15_MD_1 ISM15_HD_1
Resistance of main circuit <40µOhm <40µOhm <18µOhm <17µOhm <17µOhm <15µOhm
Available pole center distances 150mm, 210mm
(5.91inch, 8.27 inch) 		210mm, 275mm
(8.27inch, 10.83inch) 		150mm, 210mm, 275mm
(5.91inch, 8.27 inch, 10,83 inch) 		210mm, 275mm
( 8.27 inch, 10,83 inch) 		150mm, 210mm
(5.91inch, 8.27 inch) 		210mm, 274mm
(8.27inch, 10.83inch)
Type of driving mechanism Monostable magnetic actuator
Weight 34-36kg
(74.96lbs-79.37lbs) 		35-38kg
(77.16lbs-83.78lbs) 		51-55kg
(112.44lbs-121.25lbs) 		53-55kg
(116.84lbs-121.25lbs) 		35-35kg
(72.75lbs-77.16lbs) 		70-72kg
(154.32lbs-158.73lbs)
Auxiliary contacts ISM15_LD_1 ISM25_LD_1 ISM15_Shell_2 ISM25_Shell_2 ISM15_MD_1 ISM15_HD_1
Number of available auxiliary contacts 6NO + 6NC
Rated power frequency test voltage 2kV

Three-Phase VCB Series – Weight and Dimensions

VCB ISM15_LD_1

15,5 kV Light Duty VCB ISM15_LD_1 Series

Tavrida VCB ISM15_Ld1 full dimentions
1 Dimensions for Pole Distance 150mm
2 Dimensions for Pole Distance 210mm

Tavrida VCB ISM25_LD_1

27 kV Light Duty VCB ISM25_LD_1 Series

Tavrida VCB ISM25_Ld1 full dimentions
1 Dimensions for Pole Distance 210mm
2 Dimensions for Pole Distance 275mm
Tavrida three-phase VCB ISM15_Shell_2 Series

15,5 kV High Duty VCB ISM15_Shell_2 Series

Tavrida VCB ISM15_shell_2 dimensions
1 Dimensions for Pole Distance 150mm
2 Dimensions for Pole Distance 210mm
3 Dimensions for Pole Distance 275mm
Tavrida 3 phase VCB ISM25_shell

27 kV High Duty VCB ISM25_Shell_2 Series

VCB_ISM25_shell_2 dimensions
Tavrida three-phase VCB ISM15_MD Series

15,5 kV Medium Duty VCB ISM15_MD_1 Series

Tavrida VCB ISM15_MD_1 dimensions
1 Dimensions for Pole Distance 150mm
2 Dimensions for Pole Distance 210mm
Tavrida three-phase VCB ISM_15_HD Series

15,5 kV High Duty VCB ISM15_HD_1 Series

Tavrida VCB ISM15_HD_1 dimensions
1 Dimensions for Pole Distance 210mm
2 Dimensions for Pole Distance 275mm

 

Tavrida VCB Series - Documentation

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