Installation and adjustment of GN19-12 Indoor High Voltage Disconnector
Preparations before installation
1. Open the packaging box and check whether the product spare parts and the accompanying technical documents are complete according to the packing list, and check whether the product is damaged during transportation.
2. Remove dust and dirt from the product, and carefully wipe the surface of the porcelain insulator and the chassis.
3. Apply industrial vaseline to all mechanical friction parts.
4. The disconnector and the manual operating mechanism can be installed vertically, horizontally or tilted in the switch cabinet or on the wall.
5. The installation height of the disconnector is generally 2.5-6 meters (the distance from the rotating shaft of the disconnector to the ground) The installation position of the manual mechanism. The distance from the handle fulcrum to the ground is 1-1.3 meters.
After installation
The rotation angle of the handle of the CS6-1 manual mechanism should match the rotation angle of the main shaft when the GN19-12GN19-12C type disconnector is opened and closed. The adjustment process is carried out in the following way:
1. The connecting rod connecting the disconnector manual mechanism consists of a connecting piece and a 3/4 water-gas pipe (prepared by the user). The two ends of the rod are connected to the connecting piece. The connecting piece at one end can adjust the length of the connecting rod through bolts. The length of the pipe is determined by the position of the manual mechanism and the disconnector. If the output arm of the manual mechanism is determined by the position of the disconnector. If the output arm of the manual mechanism and the crank arm on the main shaft of the disconnector are not on the same plane, the length of the bolt can be adjusted.
2. Determine the initial angle of the crank arm of the main shaft of the disconnector according to the adjustment requirements, and then punch the positioning pin to fix the crank arm.
3. The CS6-1 manual mechanism is adapted to the start and end positions of the disconnector stop from the closing position to the opening position, which can be adjusted through different connection holes on the fan-shaped plate in the manual mechanism.
4. After adjusting the isolating switch, operate it 3-5 times. No abnormal phenomenon that may get stuck or hinder its operation is allowed.
5. When the handle of the manual operating mechanism is upward, the isolating switch should be in the closed position, and when the handle is downward, it should be in the open position. When in the open and close position, the positioning pin of the mechanism should reliably lock the handle to avoid misoperation.
6. The short distance of the same pole break after the disconnector is opened shall not be less than 150mm.
7. When the auxiliary switch action does not meet the requirements, the position of the hole on the linkage arm can be adjusted to make the auxiliary switch contact accurately closed. Even when the manual mechanism reaches the opening position, the normally open contact of the auxiliary switch should be in the closed position.
8. The auxiliary switch indicates that the disconnector is open and closed. The signal should be given after the contact knife of the disconnector passes 75% of its full stroke. The signal indicating the closing of the disconnector should be given after the contact knife of the disconnector contacts the contact.
9. The grounding wire contact must be good, and the grounding loop resistance must not exceed 3 ohms. 10. The connection terminal and the busbar must be in good contact and fixed reliably to avoid mechanical stress on the disconnector from the busbar. 11. The insertion depth of the screws fixing the isolating switch on the wall should not be less than:
90mm for brick wall and 75mm for cement wall
12. The contact between the contact blade and the static contact should be good, and the positive pressure of the pressure spring on the contact surface of the contact should reach the following values:
| 400A | 392±29N | 630A | 431±39N |
| 1000A | 441±44N | 1250A | 441±44N |
Common Problem Solving
| Problem | Possible Cause | Solution |
|---|---|---|
|
Switching stuck |
Loose or rusted connecting rod |
Lubricate the shaft and adjust the connecting rod length |
|
Contact heating |
Insufficient contact pressure |
Adjust the spring pressure or clean the contact surface |
| Low insulation resistance | Moisture or dirt | Clean with anhydrous alcohol and dry |
Contact us
📧 Email: pannie@hdswitchgear.com.
🌐 Official website: www.hdswitchgear.com
🏢 Factory address: No1. of hight-tech development zone, Bayu town, Weibin district, baoji city, Shannxi province,China.
Welcome to consult! Let us help you with high-quality GN19-12 switches, customized solutions, and reliable after-sales service!
