HV Switchgear
KYN61-40.5 AC Metal-enclosed Withdrawable Switchgear (40.5kV)
35kV indoor withdrawable switchgear for medium-voltage distribution, compliant with IEC 62271-200.
KYN61-40.5 is a 35kV indoor AC metal-enclosed withdrawable switchgear designed for substations and large industrial power systems. It offers arc-proof compartments and vacuum breaking with spring or permanent-magnet mechanism.
Key Technical Parameters
| Rated voltage | 40.5 kV |
|---|---|
| Rated frequency | 50 Hz |
| Rated current (busbar) | 1250 / 1600 / 2000 / 2500 A |
| Rated short-time withstand current | 25 kA (4s) |
| Rated peak withstand current | 63 kA |
| Breaking capacity | 25 kA |
| Protection degree | IP4X |
| Standards | GB/T 3906-2020, IEC 62271-200 |
Structure & Features
- Three-phase, indoor, metal-enclosed with withdrawable vacuum breaker.
- Independent busbar and cable compartments with pressure-relief channels.
Application Scenarios
- 35kV substations of industrial parks, mines and utilities.
Model Designation & Variants
- 61 = 35kV design series; 40.5 = rated voltage 40.5kV.