Drop Out Surge Arrester

Drop Out Surge Arrester Overview

Drop Out Surge Arrester is the distribution of zinc oxide arrester modified after cleverly installed in the drop-type fuse drop mechanism, in the case of uninterruptible power, you can use the insulation pull lever to facilitate the detection of arrester, maintenance And replacement, not only to ensure the smooth flow of the line, but also greatly reduces the power maintenance staff work intensity and time, especially suitable for substandard places such as post and telecommunications, airport stations, hospitals, bustling business district. Other performance with the distribution of lightning arrester. The second generation of drop arrester increased the disengagement device, arrester in the event of an abnormal failure, the use of frequency short-circuit current let the detachment action, so that the detachment of the ground automatically disengaged, arrester components fall, exit operation to prevent further expansion of the accident, And easy to maintain the maintenance of personnel in time to carry out maintenance and replacement, the fall principle of fuse fuse similar to the fuse caused by rolling down.

I use the current international company’s most advanced RW12-type drop body, reliable contact, flexible integration, and the use of composite pillars of stainless steel cover of advanced accessories, with anti-fouling and other advantages. The detachment is simple and economical. Product performance to meet the national standard GB11032-2000 (eqc IEC60099-4: 199) “AC gapless metal oxide surge arresters”, JB / T8952-2005 “AC system with composite jacket without metal oxide surge arresters,” GB311.1-1997 “High voltage power transmission equipment with the insulation.”

The Drop Out Surge Arrester of electrical parameter table

User note

1, The arrester in the installation before use, please store in a clean, dry room.

2, The arrester should be put into operation before the preventive test should be;

A, test the insulation resistance b, measure the arrester DC 1mA voltage; c, measuring 0.75 times the DC 1mA leakage current.

3, Please specify when ordering models, arrester parameters and quantity. If there are special requirements, please specify in the contract.

4, The product from the date of delivery, two years in the normal operating environment due to quality problems can not be used my company is responsible for repair and replacement.

Drop Out Surge Arrester installation instructions

1, The product should be installed in the rated voltage and the rated voltage of the arrester matches the system voltage and equipment line rating.

2. Check the tightness between the arrester and the drop mechanism before installation to ensure good contact and flexibility.

3, Adjust the method: turn the arrester on the copper contact (with pull ring), so that sub-gate tension in the 6-10kg or less, and keep the copper contact pull the ring side is outward, and then pin the next nut, Turn.

4, Install the arrester at an angle of 15° to 30° from the vertical axis. Ensure a minimum clearance of 200 mm from grounded structures and at least 350 mm spacing between adjacent phases.

5, Connect the arrester’s top terminal to the high-voltage line and the bottom terminal to the ground or equipment side. Ensure all connections are secure and terminals are not reversed.

6, Before commissioning, verify the connection with the system’s distribution-class surge protection scheme and check for any loose or unsecure components.

7, When the arrester needs to be repaired or replaced, can be in the case of uninterruptible power supply, anti-insulation gate lock bar on the lightning arrester unit to facilitate the operation, as the replacement of the drop-type melting pipe.

8, The operation of the arrester unit fall, should be replaced by lightning arrester unit to restore the protection of the system, and drop-type institutions do not need to replace. Our company can provide the corresponding arrester unit.

Drop Out Surge Arrester structural drawings and product photos