Overview
Model Definition
Classification
- According to the installation mode: fixed, drawer type
- According to the number of poles: three-pole, four-pole
- According to the operation mode: electric operation, manual operation (overhaul, maintenance)
Types of disconnectors
Intelligent controller, undervoltage instantaneous (or delayed) release, shunt excitation release.
Intelligent controller performance
- Intelligent controller is divided into: H-type (for communication), M-type (general intelligent), L-type (economic);
- It has the functions of overload long delay anti-time limit, short delay anti-time limit, fixed time limit and instantaneous. Can be set by the user to compose the required protection characteristics;
- Single-phase grounding protection function;
- Display function: setting current display, action current display, the main display of each line voltage (voltage display should be proposed at the time of ordering);
- Alarm function: overload alarm;
- Self-test function: overheating self-test, microcomputer self-diagnosis;g. Test function: test the action haracterist ics of the controller.
The normal working conditions and installation conditions
- Air temperature:
Ambient air temperature is -25℃～+70℃ (LC low temperature product is -45℃～+70℃), the average value of 24h is not more than +35℃, higher than +40℃ should be used with reduced capacity. Please refer to the table of coefficient of capacity reduction. - Atmospheric conditions:
The relative humidity of the atmosphere in the surrounding air temperature of +40 ℃ does not exceed 50%, at lower temperatures can have a higher relative humidity, the wettest month of the average maximum relative temperature of 90%. The monthly average maximum relative temperature of the wettest month is 90%, while the average minimum temperature of the month is +25℃, taking into account the condensation that occurs on the surface of the product due to temperature changes. - Altitude:
The altitude of the installation site should not exceed 2000m, and above 2000m, it should be used with reduced capacity.
