Indoor High Voltage Ground Switch
Introduction: Indoor High Voltage Ground Switch [Vacuum Circuit Breaker]MZD81-40.5/31.5 Indoor High Voltage Ground Switch (hereinafter refers to ground switch) is an advanced product with high technical parameters developed by Xi’an High Voltage Electrical Appliances Research Institute. Through comprehensive assessment, its performance meets the national standards GB1985"AC High Voltage Isolated Switch and Ground Switch" . It is applied to 40.5kV AC 50Hz power system and can be used with KYN□-45 and many other modelsHigh Voltage Electric Components. It also can be used as ground protection for high voltage electrical equipment maintenance.
Chief Features and Terms of Use - Indoor High Voltage Ground Switch
1. Advanced design, indoor load switch
2. Simple structure, easy to install and adjust
3. Rapid part and close speed
4. Altitude: Lower than 1000m
5. Environmental temperature: maximum temperature +40°C, minimum temperature -10°C
6. Earthquake intensity smaller than 8 degree.
7. Away from flood, explosion hazard, serious dust, chemical corrosion and dramatic shake.
Order Information
1. please state product model, rated voltage, thermal stable current and inter-distance.
2. If the auxiliary axis actuator is needed please annotate the left one or the right one referring to the above diagram.
3. If sensor charged display device is needed please point out the type.
PS: Special requirements please consult with our company.
Model Meaning
Main Technical Parameters - Indoor High Voltage Ground Switch
| Item | Unit | Data | ||
| Rated voltage | KV | 12 | ||
| Maximum voltage | KV | 40 | ||
| Thermal stable voltage tolerance | KA | 4 | ||
| Thermal stable current tolerance time | S | 100 | ||
| Short circuit closing current | KA | |||
| Dynamic stable current | KA | |||
| Inter-electrode central distance | Mm | |||
| Rated insulation level | Rated short term work frequency voltage tolerance | KV | Towards the ground and inter-electrode | 95 |
| Rated lightening impact voltage tolerance |
185 | |||
| Inter-electrode distance B | H | A (installation hole at the back of the steel channel) |
| 300 | 790 | 3holes-15*400*14(diameter) |
| 350 | 890 | 3holes-15*400*14 (diameter) |
| 400 | 990 | 3holes-15*400*14(diameter) |
MZD81-40.5 Indoor High Voltage Ground Switch Back
Complete set switchgear-Power Control System
