Introduction

The Siemens outdoor vacuum circuit breaker type 3AG01/ 3AF01 are structure-mounted, easy-to-install for use in 12/36 kV systems. They are porcelain- clad, three-pole circuit-breakers fitted with reliable and well- proven vacuum interrupters from Siemens. Adequate phase clearances and heights have been provided to meet standard safety requirements. They are suitable for direct connection to overhead line and cables.

The design of 3AG01/3AF01 incorporates a minimum number of moving parts and a simple assembly which ensures a long electrical and mechanical service life. It has all the advantages inherent to the use of vacuum interrupters like low drive and arc energy, light weight, shock-free performance and many more.

Standards

• 1. IEC 62271-100.
• 2. IEC 62271-200.
• 3. IEC 62271-1.

Personnel safety:

• 1. All switching operations performed with front door closed.
• 2. Earthed metal partitions and shutters prevent contact with live parts.

Typical users

The safety oriented design & rugged construction of 3AG01/3AF01 makes it suitable for use in the toughest of conditions. It can be used for Transformer substations and switching substations operation in the following industries :

• 1. Automobile
• 2. Cement
• 3. Chemical
• 4. Electrochemical plants
• 5. Iron and steel works
• 6. Lignite open-cast mines
• 7. Mining
• 8. Petrochemical plants
• 9. Petroleum
• 10. Pipeline installations
• 11. Power supply utilities
• 12. Rolling mills
• 13. Distribution network
• 14. Shipbuilding
• 15. Textile, paper and food

Features & Benefits

• 1. Fully type-tested
• 2. Conforms to IEC / IS standards.
• 3. Suitable for auto-reclosing duty.
• 4. Perfect harmony between vacuum interrupter and operating mechanism.
• 5. Highly reliable & safe operation - No fire hazard.
• 6. Low cost of ownership.
• 7. -High electrical and mechanical service life.
• 8. -Negligible maintenance.

Field Applications

3AG01 and 3AF01 are suitable for following field applications:

• 1. Short circuit protection.
• 2. Switching of transformers.
• 3. Switching of motors.
• 4. Switching of cables.
• 5. Switching of overhead lines.
• 6. Switching of capacitor circuit.
• 7. Synchronisation.
• 8. Rapid load transfer.
• 9. Auto-reclosing.