Three-phase leakage protector is a necessary device used to protect the safety of electrical equipment, it can detect leakage in the electrical equipment, once the leakage occurs, can quickly cut off the power supply, so as to avoid the harm caused by leakage. In the installation and maintenance of electrical equipment, three-phase leakage protector plays a very important role. The following will introduce several common three-phase leakage protector models and their operating procedures.
Model 1: DZ47LE series three-phase leakage protector
DZ47LE series three-phase leakage protector is a commonly used three-phase leakage protector, which has the following characteristics:
1. The use of high sensitivity leakage transformer, can detect a weak leakage signal;
2. The use of electronic fast trigger, short cut-off time, good protection performance;
2. Good protection performance;
3. With overload and short-circuit protection function, it can effectively protect the safety of electrical equipment.
Operating steps:
1. First, install the DZ47LE three-phase leakage protector in the circuit of the electrical equipment to ensure that the line is connected correctly;
2. Turn on the power supply, so that the electrical equipment works normally;
3. When the electrical equipment leakage occurs, the DZ47LE three-phase leakage protector will automatically cut off the power supply to protect the safety of the electrical equipment. The safety of electrical equipment is protected.
Model 2: DZ158 series three-phase earth leakage protector
DZ158 series three-phase earth leakage protector is a high-performance three-phase earth leakage protector, which has the following features:
1. Adopting the digital microprocessor control technology, it has high precision and reliability;
2. It has various protection functions, including earth leakage protection, overload protection, short circuit protection, etc.
3. protection, overload protection, short-circuit protection, etc.
3. With automatic recovery function, it can automatically restore power supply.
Operating steps:
1. Install DZ158 three-phase earth leakage protector in the circuit of electrical equipment, make sure the line is connected correctly;
2. Turn on the power supply, so that the electrical equipment works normally;
3. When the electrical equipment occurs in the event of leakage, overloading, short-circuiting, and other abnormalities, DZ158 three-phase leakage protector will automatically cut off the power supply and send an alarm signal to alert the operator. And send an alarm signal to remind the operator to deal with the fault;
4. After dealing with the fault, press the reset button, DZ158 three-phase earth leakage protector will automatically restore power supply.
Model III: DZ30LE series three-phase earth leakage protector
DZ30LE series three-phase earth leakage protector is a miniaturized three-phase earth leakage protector, which has the following features:
1. small size, light weight, suitable for the protection of small electrical equipment;
2. adopts the electronic fast trigger, short cut-off time, good protective Good performance;
3. With overload and short-circuit protection function, it can effectively protect the safety of electrical equipment.
Operating steps:
1. Install DZ30LE three-phase earth leakage protector in the circuit of electrical equipment, make sure the line is connected correctly;
2. Turn on the power supply, so that the electrical equipment is working normally;
3. When the leakage of electricity occurs in the electrical equipment, DZ30LE three-phase earth leakage protector will cut off the power supply automatically to protect the safety of electrical equipment.
4.