How to Easily Identify Cable Fault Points Without Cable Fault Tester

The identification of cable fault points has always been a difficulty. Once common problems occur in cables and wires, it will cause large-scale power-off of the whole line or part of the line, and immediately cause economic losses to power consumers. Therefore, the faster to find out the detailed address and causes of safety production accidents, eliminate safety risks, reduce the level of power-off of safety production accidents, and repair the plug-in wires as soon as possible, It can reduce the mutual economic losses of power supply and consumption consumers. How to find out some simple cable faults without cable fault tester: 1. The common problems of the line are stopped, and the maintenance attitude is skillfully identified; 2. Check the front-end Engineer for quick break attitude, which is about half of the total length; 3. The over circulation value is small, and the common problems are far behind; 4. The fast short overcurrent is the same as the power tripping, and the common problem is in the middle of the line. 5. Due to the different regions of the line caused by the safety production accident, the posture of the relay protection device is different. Power tripping in the maintenance attitude of power flow cut-off: power flow cut-off generally causes short-circuit fault under the system operation mode. In case of common faults, the maintenance level is large, accounting for about 50% of the total length of the line. When the line is in small operation mode, the maintenance level is small, accounting for 15% 20% of the total length of the line. Therefore, if the attitude of the power output water cut-off protection device trips, it indicates that the common problem point is generally located in the front development of the line (near the distribution station). 6. Over current flow maintenance: the maintenance level of the total over current flow maintenance is 100% of the maintained line. However, generally, the over current flow maintenance machine and equipment is provided with a time delay relay. When it is used in cooperation with the quick break protection device, the attitude trip is generally caused when common problems are caused in the rear section of the line. 7. Maintenance of power output and over-current flow. In addition, power tripping: this kind of situation generally indicates that the common problem points are located at the mutual level of quick break maintenance and over-current flow maintenance, and most of the common problem points are located in the middle of the line. After the knife switch of the distribution station trips, the posture of the relay protection device shall be investigated immediately. According to the attitude types and characteristics of relay protection equipment, the characteristics and levels of common problems are preliminarily agreed.

How to Easily Identify Cable Fault Points Without Cable Fault Tester 1

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How to Easily Identify Cable Fault Points Without Cable Fault Tester
The identification of cable fault points has always been a difficulty. Once common problems occur in cables and wires, it will cause large-scale power-off of the whole line or part of the line, and immediately cause economic losses to power consumers. Therefore, the faster to find out the detailed address and causes of safety production accidents, eliminate safety risks, reduce the level of power-off of safety production accidents, and repair the plug-in wires as soon as possible, It can reduce the mutual economic losses of power supply and consumption consumers. How to find out some simple cable faults without cable fault tester: 1. The common problems of the line are stopped, and the maintenance attitude is skillfully identified; 2. Check the front-end engineer of quick break attitude, which is about half of the total length; 3. The over circulation value is small, and the common problems are far behind; 4-speed short overcurrent is the same as power tripping, and the common problem is in the middle of the line. 5. Safety production accidents are caused by different regions of the line, and the posture of relay protection equipment is different. Power tripping in the maintenance attitude of power flow cut-off: power flow cut-off generally causes short-circuit fault under the system operation mode. In case of common faults, the maintenance level is large, accounting for about 50% of the total length of the line. When the line is in small operation mode, the maintenance level is small, accounting for 15% 20% of the total length of the line. Therefore, if the attitude of the power output cut-off protection device trips, it indicates that the common problem point is generally located in the front development of the line (close to the distribution station). 6. Over current flow maintenance and machine equipment attitude tripping: the maintenance level of total over current flow maintenance is 100% of the maintained line. However, the general overcurrent maintenance machinery and equipment are also equipped with time-delay relay. When it is used in cooperation with the quick break protection device, it usually trips when common problems are caused in the rear section of the line. 7. Maintenance of power output and over-current flow. In addition, power tripping: this kind of situation generally indicates that the common problem points are located at the mutual level of quick break maintenance and over-current flow maintenance, and most of the common problem points are located in the middle of the line. Do not use the cable fault tester to solve the difficult problems. After the knife switch of the distribution station trips, immediately investigate the posture of the relay protection device. According to the attitude types and characteristics of relay protection equipment, the characteristics and levels of common problems are preliminarily agreed.
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