AIS (SF6) Circuit Breaker Up To 800 kV
EHV Switchgear
AIS (SF6) Circuit Breaker Up To 800 kV
SF6 Insulated Dead Tank Breaker (DTB). CG has supplied its High Voltage DTB to various utilities spread across different climatic conditions in LATAM, ARFICA. Our DTB adhere to the requirements of the National and International Quality, Environment and Safety Standards including ISO 9001–2015, ISO 14001 and ISO 18001. The performance and reliability of DTB has been verified through Type tests at renowned international testing laboratories like VEIKI-VNL Hungary, including Short Circuit Making and breaking, Switching Tests, Dielectric Tests including Power Frequency Withstand, Lightning Impulse and Partial Discharge test etc as per IEC 62271-100
Features
Technical Specification
Application
Features
Features
- Fully Compliant to IEC standards
- Up to Three CT Cores per Phase
- Aluminum enclosures result in low enclosure losses, are light weight and corrosion free
- Low maintenance requirement, high availability and long service life
Technical Specification
Technical Specification
| Sr. No. | RATING | UNIT | 72.5KV DTB |
| 1 | TYPE DESIGNATION | DTB72-40 | |
| 2 | APPLICABLE STANDARD | IEC62271-100 | |
| 3 | HIGHEST SYSTEM VOLTAGE | kV | 72.5 |
| 4 | RATED FREQUENCY | Hz | 50 |
| 5 | RATED NORMAL CURRENT | A | 3150 |
| 6 | RATED POWER FREQUENCY WITHSTAND VOLTAGE (1 min) | kV | 140 |
| 7 | RATED LIGHTNING IMPULSE WITHSTAND VOLTAGE | kVp | 325 |
| 8 | RATED SHORT CIRCUIT BREAKING CURRENT (3 SEC) | kA | 40 |
| 9 | RATED PEAK WITHSTAND CURRENT | kAp | 100 |
| 10 | RATED BREAK TIME | ms | 60 |
| 11 | AMBIENT TEMPERATURE | ° C | 40 |
Application
ADVANTAGES:
- Less space Requirement
- Compact design
- More sustainable solution
- Lower Maintenance
- High Reliability