With the improvement of people’s living standards and the continuous increase of household appliances, in the process of using electricity, due to the defects of the electrical equipment itself, improper use, and inadequate safety technology measures, the people’s electric shock and fire accidents cause people’s lives and property belts. Unnecessary loss. The emergence of leakage protectors, to prevent the occurrence of various types of accidents, cut off power in a timely manner, protect the safety of equipment and people, provided a reliable and effective technical means. Then, the following Xiaobian introduces the principle of the leakage protector and the method of wiring the leakage protector. Leakage protector principle 1, when the line occurs "overload" failure, "overload current" so that "hot bimetal" heat bending and pushing "lever" makes the "mechanical locking mechanism" reset, "moving contact" quickly leave the "static contact", In order to achieve the function of breaking the line; 2. When a “short-circuit†fault occurs on the line, the “short-circuit current†causes the “instantaneous release†to act, and the plunger pushes the lever to reset the locking mechanism to achieve the breaking function; 3. When a “residual current†(leakage current) or “electric shock†fault occurs in the line, the signal output by the “zero sequence transformer†triggers the conduction of the thyristor, so that the residual current operated circuit breaker cuts off the power in a very short time. Realize the residual current protection function. Leakage protector wiring method 1, according to different electrical equipment power supply methods choose different leakage protection Single-phase 220V power supply of electrical equipment, should use two-pole or two-pole unipolar leakage protection device. Three-phase three-wire 380V power supply of electrical equipment, should use three-pole leakage protection. Three-phase four-wire 380V power supply of electrical equipment or single-phase equipment and three-phase equipment sharing circuit, should use three-pole four-wire or four-pole four-wire leakage protection. 2. According to the normal leakage current of the electric circuit, select the rated leakage current of the leakage protection device When selecting the rated leakage action current value of the leakage protector, full consideration shall be given to the normal leakage current value of the protected line and equipment. The rated leakage current of the selected leakage protector shall be less than 2 times the maximum value of the normal leakage current of the electrical line and equipment. The rated voltage, rated current, short-circuit breaking capacity, rated leakage current, and breaking time of the leakage protector shall meet the requirements of the protected power supply line and electrical equipment. Leakage protector use 1. Leakage protectors can be used to protect personal safety. They can also be used to supervise the insulation status of low-voltage systems or equipment. 2. After the installation point of the leakage protector, the line should be insulated from the ground, and the line should be well insulated. 3, lighting and other single-phase power load should be evenly distributed to the three-phase power line, when the deviation is large to be adjusted, and strive to make the leakage current is roughly equal. 4. During the use of the leakage protector, routine maintenance shall be strengthened, and the test button shall be pressed periodically under power-on condition to check whether it is sensitive and reliable to ensure its good performance. Editor's summary: The principle of the leakage protector and the method for wiring the leakage protector are introduced here. I hope to help everyone. If you want to know more related information, you can pay attention to this website information. Leakage protection switch small leakage protector
1.Dimension: Customized dimension, OEM & ODM
2.Material: A7000 and other series alu alloy
OD
OD Tolerance
ID
Tolerance
Roundness
Straightness
Circular
run-out
φ16-20
±0.02
±0.02
0.01↓
0.015↓
0.05↓
φ20-30
±0.02
±0.02
0.01↓
0.015↓
0.05↓
φ30-50
±0.05
±0.05
0.02↓
0.020↓
0.08↓
φ50-80
±0.15
±0.10
0.05↓
0.025↓
0.10↓
6. Trade Terms 7000 Series Aluminium Bar,Aluminium Rod,Aluminum T Bar,Aluminum Z Bar Changzhou YiFei Machinery Co., Ltd. , https://www.yifeialu.com
3.Suface treatment: Anodizing, polishing, turning ,power coating, mill finish etc
4.Equipment: CNC ,extruding machine, cold drawn machine, heating oven, straightening machine, cutting machine
5. STANDARD PACKING:Wooden case/carton
1. Payment: 30% T/T in advance, 70% balance pay before delivery. L/C at sight.
2. Delivery time: 20 days after deposit receiverd. If opening mould, plus 7-10 days.
3. Trade Term can be chosen depending on your requirements.
4. FOB Port: Shanghai
Leakage protector principle Leakage protector wiring method