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VHA PANEL WITH HPA12 CIRCUIT BREAKER

VHA PANEL WITH HPA12 CIRCUIT BREAKER. PRODUCT PRESENTATION. VHA 12 PANEL. Designed and type tested to meet requirements of IEC 298 & 694 / IS:3427 Air insulated indoor switchgear Metal clad construction Internal arc tested IP4X degree of protection externally and IP2X between compartments

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VHA PANEL WITH HPA12 CIRCUIT BREAKER

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  1. VHA PANEL WITH HPA12 CIRCUIT BREAKER PRODUCT PRESENTATION

  2. VHA 12 PANEL • Designed and type tested to meet requirements of IEC 298 & 694 / IS:3427 • Air insulated indoor switchgear • Metal clad construction • Internal arc tested • IP4X degree of protection externally and IP2X between compartments • Independent exhaust vents for all HT compartments

  3. VHA 12 PANEL • Integral Earthing Switch optional • Normal service conditions: Min ambient temp:-5oC, Max ambient temp:+40oC • Up to 3000A in panel without forced cooling • Quality System Certification- ISO 9001 • Environmental Management System- ISO 14001

  4. BREAKER COMPARTMENT • Cassette mounted breaker with isolated position on cubicle front door • Racking in/out of breaker from test to service position and vice-versa with cubicle door closed only • Mechanical interlock to prevent racking in/out of breaker, when breaker is in closed position • Live parts covered by automatic shutters when breaker is racked out

  5. METERING COMPARTMENT • Metering compartment with numerical/static/electro-magnetic relays, indicating meters, lamp and control switches • Protection and measuring apparatus customized as per requirement

  6. CABLE AND CT COMPARTMENT • Spacious construction to accommodate 1 set of CTs and 2 runs of cables • Option of rear extension to accommodate extra CTs or cables • Adequate height for cable termination

  7. PT COMPARTMENT • Withdrawable line PT provided in the breaker panel • Removable fuses mounted on the PT • Safety shutters between PT & Cable compartment close automatically on PT withdrawal

  8. BUSBAR COMPARTMENT • Spacious busbar compartment for adequate air clearances • Option for busbar insulation available • Option for shrouds on joints available

  9. HPA BREAKER • The HPA type circuit breaker is designed and tested to meet requirements of IEC 56 / IS : 13118 • SF6 gas used as insulation and arc interruption medium • Arc control and extinction achieved by puffer principle • Capable of interrupting small magnetizing and capacitive currents

  10. HPA BREAKER • Features of operating mechanism • O-C-O operation without recharging • Closing spring charged by motor in less than 15secs • Electrical anti-pumoing • Provision for manual recharging • Synchronisation and fast auto reclosure duty

  11. HPA BREAKER • The HPA series of CB are designed and type tested to meet the requirements of IEC-60056 / IS:1318 • The HPA series of CB use SF6 gas as insulating and arc interruption medium • Arc interruption and control are achieved by puffer principle • Short arc duration followed by rapid dielectric recovery • Long electrical life, as the interruption system develops low arc energy and contact wear is minimal • Long mechanical life with study and proven operating mechanism - 10000 operations at no load - 10000 operations at rated current

  12. HPA BREAKER • Operationally safe and reliable in wide range of operating temperature-5o to +40o c • Capable of interrupting small magnetizing and capacitive currents • Compact design with relatively light weight construction • Features of operating mechanism • O-C-O operation without recharging • closing spring charged by motor in less than 15 secs. • electrical anti-pumping • provision for manual recharging • synchronization and fast auto-reclosure duty

  13. VHA PANEL CROSS SECTIONAL DWG

  14. VHA 12 PANEL TECHNICAL DETAILS Description Unit Rating Voltage kV 12 Frequency Hz 50 Current A 630, 1250, 1600, 2000, 2500, 3000, 4000 Short time withstand kA 40 current (for 3 secs) Peak withstand current kAp 100 Insulation level kVrms/kVp 28/75 WidthxDepthxHeight mm 800x1370x2340 Weight with breaker (approx.) kg 1000 Degree of Protection-Enclosure IP4X

  15. HPA12 CIRCUIT BREAKER TECHNICAL DETAILS Description Unit Rating Voltage kV 12 Frequency Hz 50 Current A 1250, 1600, 2000, 2500, 3150 Breaking capacity kA 40 Short time withstand kA 40 current (for 3 secs) Peak withstand current kAp 100 Insulation level kVrms/kVp 28/75 Operating sequence O-3min-CO-3min-CO/ O-0.3secs-CO-3min-CO Weight (approx.) kg 190-225

  16. INSTALLATIONS OVER 25,000 PANELS INSTALLED MAJOR INSTALLATIONS AT: • POWER PLANTS • DISTRIBUTION UTILITIES • STEEL PLANTS • CEMENT PLANTS • REFINERIES • VARIOUS INDUSTRIES & IN-FRASTRUCTURE PROJECTS

  17. SUCCESFULL INSTALLATIONS IN GENEARATIONS Major installations of VHA 12S +HPA POWER PLANT LOCATION SF6 SWGR INSTALLED • MSEB ( CHANDRAPUR UNIT IV V &VII ,KORADI) (1989,95,99)- 593 • NTPC ( VINDHYACHAL 500MW)(1995) - 248 • NTPC ( TALCHER 4 X 500MW) (1999) - 451 • APSEB ( RAYALSEEMA 2 X 210 MW) (1998) - 235 • BSES DAHANU ( 2 X 250MW) (1994) - 163 • MPEB SGTPS (1997) - 179 • GIPCL (2 X 125 MW) (1996) - 110 Total SF6 panels installed in Generations in India - 4100Nos ABB’s market share in Generation is 70% !!!

  18. HPA – Arc Interruption principle BBBBBBBB

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