The generator incoming line end can be connected to the leakage protector, which helps provide leakage protection to power generation equipment. Leakage protector is a safety device used to detect leaks and cut off power supply, which can effectively protect personal safety and equipment.
When the incoming line of the leakage protector is connected to the generator, it will monitor the current flow. Once excessive leakage current or leakage is detected, the leakage protector immediately cuts off the power supply to prevent. the escape. Avoid electric shock or other dangerous situations caused by electric leakage.
It is important to ensure that parameters such as current and voltage match the RCD ratings when connecting the RCD to the generator, and to follow the installation instructions andinstructions from the equipment manufacturer. In addition, power generation systems equipped with leakage protection devices also require regular inspection and maintenance to ensure their normal operation and reliable protection. If you have any questions during installation and wiring, it is recommended to consult a professional electrician or contact the equipment manufacturer for correct operating instructions.
This is a three-phase four-wire power supply method. In rural areas and small and medium-sized towns, this method of power supply is also used by many people. Construction sites and small generators must be grounded, and the neutral line and ground wire share the same line.
The TN system, in a three-phase four-wire low voltage electrical network of 380/220 V where the neutral pointe of the transformer or generator is directly grounded, connects the metal shell of the electrical equipment that is not loaded during normal operation through the public protection line Direct electrical connection to the neutral point of the power supply. That is, the protection of the old three-phase four-wire power system was connected to zero.
The neutral point of the TN system power supply is directly grounded and has an exiting neutral wire. According to its protection line form, the TN system is divided into three types: TN-C system, TN-S system and TN-C-S system.
(1) TN-C system (three-phase four-wire system), the neutral line (N) and protection line (PE) of this system are integrated, and this line is also called protected neutral Line line (PEN). Its advantage is that it saves one wire, but its disadvantage is that when the three-phase load is unbalanced oIf the protective neutral line is disconnected, the metal shell of all electrical equipment will be charged with dangerous voltage.
(2) The TN-S system is a three-phase, five-wire system. The N line and PE line of this system are separated and the five-wire power supply is used from the transformer. . Its advantage is that no current flows through the PE line under normal circumstances, so it will not cause electromagnetic interference to other equipment connected to the PE line. In addition, since the N line is separated from the PE line, disconnecting the N line will not affect the protective effect of the PE line.
(3) TN-C-S system (three-phase four-wire and three-phase five-wire hybrid system). This system has a four-wire system from the transformer to the user's distribution box. the neutral wire and the protective earth wire are in one; distribution boxution to the user's neutral line and protective ground wire are separated, so it has the characteristics of TN-C system and TN-S system. It is often used in poor environments. environment at the end of the distribution system or with electromagnetic interference. Locations with strict anti-interference requirements.