The following should be considered when using diesel generator sets:
1. Pay attention to the occasions of use
1) The generator should be placed outdoors or in a well-ventilated place in the engine room when using, not near doors, windows and vents to prevent carbon monoxide from entering the room.
2) Do not use generators near flammable and explosive materials.
3) The generator must be placed in a dry place. If it must be installed and used in the open air, it must be protected by a canopy type building to avoid contact accidents due to humidity.
2. Pay attention to fuel storage and use
1) Generator fuel should be stored in a dedicated warehouse, and the warehouse facilities should comply with fire department regulations.
2) The tType of fuel used must comply with the requirements listed on the generator's instruction manual or label.
3) Before adding fuel, the generator should be turned off first, then added after the generator has cooled to prevent the fuel from gradually reaching the higher temperature parts and taking fire, causing disaster.
3. Pay attention to the connection of the generator wiring
1) The specifications of the outdoor wiring should meet the requirements of the electrical load used.
2) When using an extended wire, make sure it is well insulated from earth.
3) The generator output wire cannot be directly plugged into the residence's original electrical outlet to supply electricity. This will cause feedback and could cause electric shock to users powered by the same transformer. The correct connection is for an electrician to ininstall a power transfer switch.
4. Keep diesel fuel clean.
Before using oil barrels to fill diesel fuel, the diesel fuel must undergo sufficient sedimentation, and the sedimentation time is preferably more than 3 days. When refueling, it must also be carefully filtered to avoid mixing of mechanical impurities. The oil storage container and refueling tools should also be kept clean during operation.
5. Other fuels cannot be mixed with the unit's diesel.
If there are other fuels in the diesel, the combustion performance will be significantly worse, resulting in starting difficulty or even starting failure. Any other fuel entering the cylinder will also remove the lubricating oil film from the cylinder and accelerate cylinder wear.
6. Try to use high quality dieselity.
Diesel quality is directly related to the ability of the diesel engine to operate normally. If you use poor quality diesel, on the one hand, it will reduce the power of the diesel engine due to poor combustion, making it insufficient in power, on the other hand, if used for a long time, this will speed up the engine; wear of various parts of the fuel system and reduce the life of the diesel engine. Therefore, try to choose a diesel of good quality and appropriate brand.
Diesel generators must be grounded. There must be a suitable ground wire. Once a leak occurs, a loop will occur with the earth, seriously affecting human safety.
Protective earthing of diesel generators is used in ungrounded three-phase power neutral point systems. Its function is that once the insulation of electrical equipmentique is damaged and a leak occurs, the human body comes into contact with the energized hull. At this time, the resistance of the human body is much greater than the resistance of the body to the ground (40). , and a large amount of point current escapes to the ground through the metal shell, and the ground voltage may drop below the safety voltage of 36V.
Its function is the following: When the insulation structure of a certain winding of the motor has been damaged and the shell is charged, if it is not grounded and the human body touches the shell, it is equivalent to electric shock single phase. , and there may be a risk of electric shock.
If protective grounding is used, when the human body touches the hull, the resistance of the human body is connected in parallel with the resistance of the earth since the resistance of the human body is much higher to the resistance of the earth. , the neckrant passing through the human body will be very small and no danger of electric shock will occur.
Detailed Information
The following points should be noted when wiring the diesel generator set:
1. The ground wire connection point. is usually at The chassis end of the diesel generator set should be connected to a suitable ground wire location when installing the ground wire.
2. The alternator neutral ground wire connection is usually determined by the user during installation. When the diesel generator set is used as the sole power source, the neutral wire must be directly connected to the factory ground. thread.
3. For more complex installations, the grounding midpoint should be selected to ensure proper operation of the diesel generator set or protective equipment, such as detection ofEarth faults and minimization of earth circulation current.
4. The ground wire should be arranged in accordance with the recommendations of the user and local authorities.
5. Ensure equipment wiring is effectively maintained at all times. Maintenance of the wiring system must be carried out in strict accordance with the instructions.
Baidu Encyclopedia-Diesel Generator