Pay attention to the environmental conditions of soft starting, and prevent it from running under the condition that it is permitted. Check that there is any object around the soft starter that prevents ventilation and heat dissipation, and that there is sufficient space (greater than 150mm) around the soft starter.
Check whether the distribution line terminal is loose or not, whether the components in the cabinet have overheated, discolored, Jiao Chouwei and other abnormal phenomena.
Regular cleaning of dust, so as not to affect the heat dissipation, to prevent the thyristor due to temperature rise is too high damage, but also avoid dust caused by leakage and short circuit accidents.
Dust cleaning can be done with dry hair brush, and can also be used for leather tiger blowing and vacuum cleaners. For large pieces of dirt, they can be removed by insulating rods. If conditions permit, about 0.6MPa compressed air can be used.
Usually pay attention to observe operation of fan, once found the fan speed slow or abnormal, should be promptly repaired (such as removing dust, grease, lubricating oil, the replacement of damaged or deteriorated capacitor). Change the damaged air gear in time. If a soft starter is not used in the absence of a fan, the thyristor will be damaged.
If the soft start using the environment is humid or easy to dew, should often use infrared bulbs or hair dryer drying, dispel moisture, in order to avoid leakage or short circuit accident.
