
Manager Zhou
Leave a messagesummary
This product is designed for single-phase use in three-phase line systems, with a simple structure, economy, and convenient use.
This product is a single break vertical open structure, with single isolation switch post insulators installed on their respective chassis. It mainly consists of a base, post insulators, main electrical circuit parts, self-locking devices, etc. Adopting a knife type structure to open and close the circuit. Each phase switch blade is composed of two conductive blades, and compression springs are installed on both sides of the blades. Adjusting the height of the springs can obtain the contact pressure required for the switch blade. When opening and closing the switch, use an insulated hook rod to operate the mechanism part, and the switch blade has a self-locking device.
working principle
When opening and closing the isolation switch, use an insulation hook rod to operate it. The insulation hook rod grips the isolation switch lock hook, pulls the lock hook towards the opening direction, releases the self-locking device, and drives the connected conductive plate to rotate to achieve the opening action. When closing, the insulation hook rod presses against the isolation switch lock hook to drive the rotating shaft to rotate, causing the connected conductive plate to rotate to the closing position. At this time, the self-locking device locks the isolation switch in the closing position.
This type of isolation switch can be installed on pillars, walls, ceilings, horizontal frames or metal frames, and can also be installed vertically or diagonally, but the installation position should be such that when the contact blade is opened, it tends downwards.
Technical Parameter
Name | Unit | Data | |||||
rated voltage | kV | 10 | 15 | ||||
maximum working voltage | kV | 12 | 7.5 | ||||
Rated Absolute Edge level | 1-minute power frequency withstand voltage (effective value) | to ground | kV | 40 | 40 | ||
fracture | kV | 47 | 47 | ||||
Lightning impulse withstand voltage (peak value) | to ground | kV | 105 | 105 | |||
fracture | kV | 120 | 120 | ||||
Rated frequency | Hz | 50 | |||||
Rated current | A | 200 | 400 | 630 | 1250 | ||
4-second thermal stability current (effective value) | kA | 6.3 | 12.5 | 20 | 31.5 | ||
Dynamic stability current (peak value) | kA | 16 | 31.5 | 50 | 80 | ||
Creepage distance | mm | 300 | 380 | ||||
mechanical life | times | 2000 | 2000 |
Oil&Gas exploited
Automotive Manufacturing
Transportation & Dlistrlbutlon
Manufacture
Industrial Construction
Green Energy
Copyright ? 2024 All Rights Reserved
Back to top
Comment
(0)