1, short circuit. The main reason for the short circuit of electrical equipment is that the insulation no longer has the ability to insulate, and triggered by the emergence of this situation lies in the insulation layer of moisture or wear and tear, and some of the line is used for too long a time there is an aging of the insulation layer, coupled with the electrical equipment is in disrepair will also occur short-circuit.
2, the temperature is too high. For electrical equipment, in the operation of the wire must be needed, but each wire has its own maximum withstand current load range, if the current load is abnormal, beyond the original capacity of the wire, will instantly increase the temperature of the wire, and then the wire burned.
The reason for this situation may be related to the lack of lubricating oil after a long period of equipment operation, at the same time, it may also be that the equipment operating space is too small, and can not be timely heat will be emitted, will also appear in this case. In addition, there is no timely cleanup of dust and debris for the equipment, which can also lead to high temperature, which in turn threatens the safety of electrical equipment.
3, arc and electric sparks. In the operation of electrical equipment, it is easy to wire insulation damage and other electric arc and electric sparks, once this happens, will directly threaten the overall safety of the power plant, especially electric sparks can easily lead to electric fires, dealing with the great difficulty.
4, harmonic failure. In the operation of electronic equipment, will inevitably produce harmonics, these harmonics on electronic equipment has a great impact, more will trigger malfunction, easy to bring the threat of safe operation of electrical equipment, more will threaten the current operation, not conducive to the enhancement of the quality of the power grid.
Expanded information:
Operation management of electrical equipment:
1, reasonable adjustment of the peak hours of electricity load:
Normal circumstances should try to make the transformer load rate control in about 60%, when the transformer loss is lower. Therefore, in the peak hours of electricity consumption, should optimize the equipment operation program, choose to unload certain relatively unimportant mechanical and electrical loads and lighting loads, so that the peak load reduction.
2, public **** lighting and office equipment operation and management:
In the case of not affecting the office, should try to lower the illumination or timely closure of lamps and lanterns, no special needs, decorative lamps and lanterns as far as possible do not open for a long time.
The less mobile area, the lamps and lanterns control switch should be used inductive, voice-activated, touch delayed closure and other control methods, conditions can be real-time monitoring of the public **** lighting system. Office equipment such as computers not used for a long time should be cut off in time to reduce standby losses.
3, air-conditioning system operation and management:
Summer air-conditioning set temperature value will be adjusted downward by 1 ℃, will increase the energy consumption by 9%; winter will be set up 1 ℃, will increase the energy consumption by 12%. Therefore, the appropriate adjustment of the air conditioning set temperature value, is the air conditioning energy saving effective measures.
At the same time, the use of equipment monitoring system to strengthen the air conditioning system unit equipment operation management, and according to the changes in the system load and the meteorological environment, timely adjustment of the air conditioning system operation program, reduce the total power of the equipment operation, and control the optimal start and stop time of the air conditioning equipment can be in the premise of ensuring a comfortable environment to shorten the air conditioning unnecessary running time, in order to achieve energy-saving operation.
Baidu Encyclopedia - Electrical Equipment
Baidu Encyclopedia - Electricity