How to wire a diesel generator
The engine starts first, and the motor drives the electric ball through the flywheel to generate electricity, then transmits it to the load. A 24 V battery is required to start the engine. After starting, it can work normally after continuous fuel supply. There is a start relay on the motor with 4 terminals. The left and right ends are connected to the positive and negative poles, and the upper and lower ends are connected to the start signal circuit. Can you understand what I'm saying? The black thing in the middle of the diesel generator in the link below is the starter and starting relay. You need two for high power and one for low power.
Nowadays, many people buy diesel generators but don't know how to use the generator. As the Internet Growse more and more people are starting to buy things instead of buying them directly from nearby. from the manufacturer. But the more you buy online, the more problems you encounter. We have already met some customers who cannot connect the plug wires. In fact, the generator plug wiring method is very simple. Now I will briefly talk about the method of wiring the generator whether it is a gasoline generator or a diesel generator. . The methods of wiring generators are all the same. The first step is to purchase a plug. The power of the socket depends on the power of the device you want to carry. First, use a razor blade to open the plug cover that came with the generator. Remove the cover again and you will see that there are three pillars inside the generator plug, two of which are the same length, and one pillar is much longer than the twox other pillars. Next, our wiring is connected to two pillars of the same length. Since the socket has two wires, one is the neutral wire and the other is the hot wire, for now we just need to replace the plug of the regular socket with the special plug of our generator. At this point we just need to connect the wire from the socket we purchased to the generator plug. The two wires are connected to the two pillars circled in red. The final step is to use the two screws on the pillar to secure the wire. If you want to connect the generator power to the mains, you need to connect the generator plug wire to your mains. If you go up above the wires, you don't need to buy a socket at this time.
Should the diesel generator ground wire be connected?
The light will not come on in either case.
Because the lamp does not form a current loop. The neutral point of the windinggenerator is not connected to ground. The live wire from the generator passes through the lamp to the neutral wire of the transformer and cannot return to the neutral point of the generator winding.
Typically, the generator produces three-phase wires and a neutral wire. Send it to the electrical distribution panel and connect it to the busbar. At this time, the neutral line of the generator is connected to the neutral line of the transformer and grounded, and then delivered to the load. ?
Edit: Take a closer look to see if the generator output neutral line is truly isolated from the transformer neutral line or ground. Using a single live wire from the generator will definitely not form a loop. Is there an electrical device or instrument that conducts the neutral wire of the transformer to the neutral wire of the generator?
What the person above said is false. The meter that steals electricity must always beconnected to the neutral wire. Simply connect the meter's live wire and find another ground wire as neutral. thread. The counter will always run. Unless the meter's neutral wire is not connected, the meter will not spin.
Mandatory
Grounding of diesel generator sets has three purposes
To ensure personal safety and the need to operate the electrical system, there are certain requirements for grounding the generator set. There are three types of grounding methods: working grounding, protective grounding and protective grounding. The purpose of grounding is:
1. Working grounding is: The purpose of neutral point grounding is:
1) Reduce electric shock voltage. For a system with an ungrounded neutral point, when one phase is grounded and the body huhand touches one of the other two phases, the electric shock voltage is more than 1.7 times the phase voltage while for a system with grounded neutral point, the electric shock; voltage It drops to a level close to or equal to the phase voltage
voltage.
2) Promptly shut off defective equipment. For a system with an ungrounded neutral point, when one phase is grounded, due to the capacitance and insulation resistance between the wires and ground, a current path can form and The grounding current is very small, which is not enough to cause the protection device to work. Cutting off the power supply
cannot guarantee personal safety. For systems with a grounded neutral point, when a phase is grounded and the earth current is large, the protective device will act quickly to disconnect the fault point.
3) Reduce the level of insulation of electrical equipment to earth. In a system with an ungrounded neutral point, when one phase is grounded, the ground voltage of the other two phases rises to the line voltage. For systems with a grounded neutral point, when one phase is grounded, the voltage to ground of the other two phases is only close to the phase voltage, so the insulation level electrical equipment and transmission lines can be reduced.
2. Protective Earthing
Protective earthing is often used in low voltage systems where the neutral point is not earthed. Its function is: when the insulation junction of a certain winding of the. motor
If protective earthing is used, when the human body touches the shell, 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 greater than the resistance of the earth, current passes through the human body. will be very weak and there will be no risk of electric shock.
3. Protective zero connection
The protective zero connection is often used in low voltage systems where the neutral point is grounded. Its function is: to protect the insulation structure from a certain winding. of the motor
When damaged and connected to the hull, due to the use of a zero protection connection, a single-phase short circuit is formed and the fuse of this phase quickly blows , and the hull is no longer charged. Even when the human body touches the case before the fuse blows, the resistanceistance of the human body being much greater than the resistance of the circuit, the current passing through the human body is very low and there is no risk of electric shock.