MEDIUM VOLTAGE SWITCHGEAR SYSTEM NES-HD
Draw-out type switchgear system for indoor installation, type-tested, factory-assembled, air-insulated, metal-enclosed with an eightfold compartment, double busbar system.
Optional: motor operated withdrawable units, circuit breaker/disconnector and earthing switches.
For the conduction of hot gases that result from arc faults, the switchgear system is equipped with internal pressure release ducts. Optional: conduction out of the control room or a release in the control room with an accumulative absorber.
Technical Data
| Rated values | up to | |
| rated voltage | 12 | kV |
| rated power-frequency withstand voltage | 28 | kV |
| rated lightning impulse withstand voltage | 75 | kV |
| rated busbar current | 4.000 | A |
| rated short-time withstand current | 50 | kA |
| rated peak withstand current | 125/130 | kA |
| rated short-circuit duration | 3 | s |
| internal arc fault test 1s | IAC AFLR 50 | kA |
| Dimensions | ||||||
| cubicle width | 1.000 | 800 | ||||
| cubicle depth* | 2.000 | 2.000 | ||||
| cubicle height | 3.350 | 3.300 | ||||
| rated branch current: | 4.000 | 1.250 | ||||
* plus 77mm for doors
Further values upon request