FTr(III)/ITr series traction substation circuit breakers
27.5kV 630A~3150A
Specifications
| Model | FTr(III)/ITr |
|---|---|
| Standard | GB/T 1984 (HV AC circuit breakers), GB/T 11022and traction power equipment technical conditions |
| Rated Voltage | 12kV / 27.5kV / 40.5kV (perModel) |
| Rated Current | 630A~3150A |
| Operating Temperature | -40℃~+70℃ |
| Altitude | <4000m |
| Materials | vacuum interrupter, spring/permanent-magnet operating mechanism, hot-dip galvanized tank |
| Installation | pole-mounted outdoor/indoor switchgear/Traction substation:-mounted installation |
FTr(III)/ITrThis circuit breaker series serves electrified railway traction substations with a wide parameter coverage; some types include an earthing switch, meeting all protection needs of traction power supply systems.
| voltage | 27.5kV / 2×27.5kV |
| current | 630A ~ 3150A |
| Short-time withstand current | 20kA ~ 40kA |
| Key features | Traction substation:for , wide parameter coverage, some types include an earthing switch |

Product Overview
The FTr(III)/ITr series traction substation circuit breakers produced by Henan Chuangwit Railway Equipment Co., Ltd. are rated 27.5kV/2×27.5kV, 630A to 3150A, with short-time withstand current 20kA to 40kA; some types include an earthing switch.
Key Features
- indoor, outdoor and pole-mounted types available
- intelligent types support telecontrol and protection integration
- load switch-fusecomposite apparatus optional
- proven reliable vacuum arc extinction technology
Compliance & Quality Control
Complies with GB/T 1984 (HV AC circuit breakers), GB/T 11022 and traction power equipment technical conditions; vacuum arc extinction is maintenance-free with a mechanical life of 10000 operations; intelligent types with controllers support telecontrol and fault recording.Rated short-circuit breaking current and short-time withstand current satisfy system short-capacity verification; insulation level complies with GB/T 11022. The company holds CRCC railway product certification and ISO9001 quality management system certification; every piece (batch) is delivered only after passing factory inspection.
Operating Conditions & Typical Applications
For traction substations, switching stations and 10kV distribution systems under frequent operation and short-circuit breaking duty. Typical applications include traction substations, switching stations, 10kV distribution systems and industrial private lines.
Selection & Service
We provide selection verification and non-standard customization based on line conditions and operating parameters, Products follow CRCC railway product certification and ISO9001 quality management system requirements; key parameters are verified by factory inspection and type tests. For selection consulting and quotations, please call 0375-6051688.
Performance
Operating Conditions
for traction substations, switching stations and 10kV distribution systems under frequent operation and short-circuit breaking duty.
Mechanical Performance
vacuum arc extinction is maintenance-free with a mechanical life of 10000 operations; intelligent types with controllers support telecontrol and fault recording.
Electrical Performance
Rated short-circuit breaking current and short-time withstand current satisfy system short-capacity verification; insulation level complies with GB/T 11022.
Applications
Traction substation:
FTr(III)/ITr series traction substation circuit breakers enable fast fault clearance on traction substation feeder lines.
Switching station:
FTr(III)/ITr series traction substation circuit breakers create flexible operating arrangements for switching-station lines.
10kV distribution system:
FTr(III)/ITr series traction substation circuit breakers are pole-mounted for 10kV line distribution; intelligent types support remote monitoring.
Industrial private lines:
FTr(III)/ITr series traction substation circuit breakers are supplied as matched sets for industrial private lines.


