Porcelain Clad Vacuum Circuit Breakers (PCVCB)
BHEEM Series of porcelain clad vacuum circuit breakers are structure mounted, easy to use devices for outdoor applications in 12kV and 36kV systems. They come with well proven vacuum interrupters from Megawin with adequate phase clearances and heights, suited for overhead lines and cables. Bheem series of VCB come with non-parallel performance by incorporating current sensors and voltage sensors on to the terminal pads.
Embedded Current and Voltage Sensors
Current sensors and voltage sensors are a direct replacement to current and potential transformers. When incorporated into Metal clad switchgear it makes your switchgear failure free.
Embedded Current and Voltage Sensors
Current and voltage sensors are designed for both metering and protection, covering all your specification in one design with added benefits.
Protection Class: 5P40
Metering: 0.2s
Hydrophobic cycloaliphatic epoxy bushing (HCEP)
FEATURES AND BENEFITS
Parameters | 12kV | 36kV |
---|---|---|
Number of poles | 3 | 3 |
Rated Voltage | 12kV | 36kV |
Rated Current | 630A/800A/1250A | 630A/800A/1250A |
Short time current withstand capacity | 25kA | 25kA |
Rated Frequency | 50Hz. | 50Hz. |
Power frequency withstand voltage | 28kV(rms) | 70kV(rms) |
Lightning impulse withstand voltage | 75kV peak | 170kV peak |
Short circuit breaking capacity | 25kA/3sec | 25kA/3sec |
Short circuit making capacity | 62.5kA | 62.5kA |
Short time withstand current | 25kA/3sec | 25kA/3sec |
Operating sequence | O-0.3 Sec- CO-3 min CO | O-0.3 Sec- CO-3 min CO |
Degree of protection for switching unit | IP54 | IP54 |
Degree of protection for control cabinet | IP54 | IP54 |
Design temperature | 50̊C | 50̊C |
Auxiliary voltage | 24V DC/110V DC | 24V DC/110V DC |
Circuit breaker type | Pedestal/substation mounted | Pedestal/substation mounted |
Interrupting medium | Vacuum | Vacuum |
Insulation medium | Solid | Solid |
Operating Mechanism | Spring/ Magnetic Actuator | Spring/ Magnetic Actuator |
Mechanical life | 10,000 Operations | 10,000 Operations |
Electrical life at rated current | 100 operation | 100 operation |
Relevant standards | IEC 62271-100 | IEC 62271-100 |