NXSAFE Movable-type indoor AC metal-enclosed switchgear
NXSAFE removable enclosed switchgear is mainly intended for primary distribution system including transformer substation, and also available for switching station and other secondary distribution system, or user terminal power supply system.
- Hertzman
- China
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NXSAFE
Movable-type indoor AC metal-enclosed switchgear
| Name | Unit | Value | |
| Rated voltage | kV | 12 | |
| Rated frequency | Hz | 50 | |
| Rated currency | A | ≤4000 | |
| Rated currency | 1.1Ir | ||
| Rated power frequency withstand voltage (1min) | kV | 42 | |
Rated lightning impulse withstand voltage (peak value) | kV | 75 | |
| Rated short-circuit breaking current | kA | 40 | |
| Rated short-circuit close current | kA | 100 | |
| Rated short-time withstand current and duration time | kA/s | 40/4 | |
| Rated peak withstand current | kA | 100 | |
| Auxiliary and control circuit short-duration power-frequency withstand voltage | kV | 2 | |
| Partial discharge | Test voltage | kV | 1.1×12 |
Single insulator | pC | ≤3 | |
| Protection grade | Housing | IP4X | |
| Compartment | IP2X | ||
| Creepage distance | Porcelain material (to earth) | mm | ≥216 |
| Organic materials (to the ground) | mm | ≥240 | |
Phase-to-phase and phase-to-earth clearance (air insulation) | Test voltage | mm | ≥125 |
| Lost running continuity category | Single insulator | mm | LSC2 |
| Minimum clearance between SMC partition (is any) and charged conductor | Housing | mm | ≥30 |
| SMC partition thickness | Compartment | mm | ≥5 |
| Cooling method | Porcelain material (to earth) | Self cooling 1) | |
| Allowable duration of internal arc | Organic materials (to the ground) | s | ≥0.5 |
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