MEDIUM VOLTAGE SWITCHGEAR SYSTEM NES-H18
Draw-out type switchgear for indoor installation, type-tested, factory-assembled, air-insulated, metal-enclosed with a fourfold compartment.
Circuit breaker in truck types starting at 3.150 A.
Application as a single bus system or as a duplex system.
Optional: motor operated withdrawable units and earthing switches.
The following variations are possible for the conduction of hot gases that result from arc faults:
- deflector plate
- pressure release duct
Technical Data
| Rated values | up to | up to | |
| rated voltage | 12 | 17,5 | kV |
| rated power-frequency withstand voltage | 28 | 38 | kV |
| rated lightning impulse withstand voltage | 75 | 95 | kV |
| rated busbar current | 4.000 | 4.000 | A |
| rated short-time withstand current | 55 | 50 | kA |
| rated peak withstand current | 137,5 | 125 | kA |
| rated short-circuit duration | 3 | 3 | s |
| internal arc fault test 1s | 50 | 50 | kA |
| Dimensions | |||||
| cubicle width* | 1.000 | 1.000 | 800 | mm | |
| cubicle depth** | 1.800 | 1.800 | 1.800 | mm | |
| cubicle height | 2.300 – 2.500incl. control compartment H = 600 up to 800 | mmmm | |||
| rated voltage | 17,5 | 17,5 | 17,5 | kV | |
| rated voltage switchgear | 3.150 | 4.000 | — | A | |
| rated branch current up to: (natural-/air cooled) | 3.150 | 3.400 | 2.500 | A | |
| rated branch current up to:(forced ventilation) | 4.050 | 4.200 | 3.300 | A | |
* plus 77mm for front door and back wall
Further values upon request.