Standard: | IEC | Rated Current: | 630A,1250A |
---|---|---|---|
Rated Voltage: | 11KV | Mechanical Life: | 10000 |
Keywords: | Indoor H.v. Load Breaking Switch | Port: | NINGBO |
High Light: | load break isolator,high voltage isolator switch |
Load brake switch (LBS) - this is a switching device in the power distribution network, which is capable to switch off the power lines under nominal load. It is used to divide the power line into smaller sections, hence its second designation as a sectionalizer. If reclosers and LBSs are remotely operated, then during the short circuit, a manipulation (LBS switching off and on) is done in cooperation with a recloser in non-voltage pauses (when recloser is off) to protect the LBS from higher currents than nominal. When the LBS is manipulated in standard conditions with nominal load, they occur the arc discharges. Therefore, load break switches are mostly equipped with various types of arc discharges extinguishers (spring, oil, vacuum, etc.).
Indicator - it is a device indicating the states of voltage and current at a given location. The power line is not manipulated and therefore it is a cheaper device designed to mark an affected area as accurately as possible, so a repair can be done in the shortest time.
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 |
Q1. Can we have our logo or company name to be printed on your products or the package?
Yes,you can.Logo and company name can be printed on our products by silk screen printing.You can send us the artwork by email in JPEG or TIFF format.
Q2. What is lead time?
Usually 3-15 working days, On-Time delivery
Q3. Why us?
All products comply with the requirements of GB national standards, IC, ANSI and other international standards, and the requirements of company's technology standards.
Q4. How do you make our business long-term and good relationship?
1. Our high quality and competitive price are the most important factors to maintain long-term and good relation -ship with our customers.
2. Good service is our basic principle for every customers.
Q5. Can I have a visit to your factory before the order?
Sure,welcome to visit our factory.