Product Description
Load break switch
A load break switch is a disconnect switch that has been designed
to provide making or breaking of specified currents.
This is accomplished by addition of equipment that increases the
operating speed of the disconnect switch blade and the addition of
some type of equipment to alter the arcing phenomena and allow the
safe interruption of the arc resulting when switching load
currents.
SF6 Insulated Load Break Switch for the use in medium voltage
switchboards for secondary distribution networks.
SF6 Insulated Load Break Switch for the use in medium voltage
switchboards for secondary distribution networks.
| ltem | Unit | Data |
| Rated voltage | KV | FN12-12D/630 | FN12-12(R)D/125 |
| Rated frequency | HZ | 12 |
| Rated current | A | 50 |
| 1min power frequency withstand voltage | KV | 42 to ground and phases fracture 48 |
| Lightning impulse withstand voltage | KV | 75 to ground and phases fracture 85 |
| Rated thermal stable current | KA | 630 | 100 |
| Rated dynamic stable current | KA | 50 |
| Rated switching current(peak) | KA | 50 | 50 |
| Rated short-circuit current(expected) | KV | | 31.5 |
| Maximum breaking current threshold | HZ | Fuse characteratic curve accorting |
| Minimum breaking current | A | Fuse characteratic curve accorting |
| Rated transfer current | KV | 50 | 1.5 |
| Maximum breaking current | KV | 1.8 |
| Breaking OFF-load transformer capacity | KV/A | 1250 |
| Rated cable charging current | A | 10 |
| Rated active load current breaking times | Times | 10000 |
| Opening time when striker strikes | S | <0.06 |
| Earth switch thermal current switch | KA | 20(2S) |
| Thermal stable current of earth switch | KA | 50 | 50 |
| Motor operating power supply voltage | V | AC/DC 110/220 |
| ltem | Unit | Data |
| FN12-10D/630 | FN12-10(R)D/125 |
| The total traveling distance of moving contact | mm | 200+8-2 |
| Phase center distance (Before energy storage) | mm | 210±15 |
| Moving contact overtravel distance | mm | 40±2 |
| Auxiliary contact opening distance | mm | >150 |
| Opening/Closing time difference among three phase | ms | <3 |
| Opening speed | m/s | >2.8 | >2.8 |
| Closing speed | m/s | >3.8 |
| Distance between metal flexible door and torch | mm | >125 |
| Fracture distance of earth switch | mm | >150 |
| Main circuit resistance | Ω | <120 | <300 |
| Maximum operating torque | NM | >160 |
Company Information
INTRODUCTION
Zhejiang Xinkou Power Equipment Co.,Ltd, is a high-tech enterprise
specializing in developping, design, manufacture, sales, import and
export of low voltage and high voltage electrical products.
Company main products: indoor and outdoor high voltage vacuum
circuit breaker, load break switches, disconnecting switches, drop
out fuse cutour, lightning arrester, etc. All products comply with
the requirements of GB, IEC, ANSI and other international standard.
SERVICE
We have a very professional sales team which can offer you the best
service and answer you very professional questions, so you can feel
very comfortable before you buy machine from us. As is known to all
of us, after-sale service is the most important to all industries.
Our company has been trying our best to build a very professional
and high-caliber after-sale service team which can solve all
problems efficiently in the future.
