Product Description
FZN25-12 indoor high voltage vacuum load switch is a three-phase Ac 50Hz, rated voltage 12kV indoordevice, used with industrial and mining enterprise power distribution stations and substations and otheioccasions, as the protection and control of electrical facilities, used to divide load current, closed-loopcurrent,no-load transformer and cable charging current.
FZRN25-12 indoor high voltage vacuum load switch fuse combination electrical appliance is a three-phase AC 50Hz, rated voltage 12kV indoor device, suitable for industrial and mining enterprise powerdistribution stations and substations and other occasions, for load control and short circuit protectionEquipped with a grounding switch that can withstand short-circuit currents. The operating mechanismcan be manually closed electrically, which is convenient to realize the three remote control reguirementsof the power system.
FZN25-12, FZRN25-12 series load switches and combination electrical appliances are suitable forthree-phase ring network or terminal power supply urban distribution stations and industrial powerequipment, for load control and short circuit protection. Because the protective effect of combinedelectrical appliances on electrical equipment such as transformers is more reliable and economical thanopen circuits, it is especially suitable for ring, networks, dual-radiation power supply units and box-typesubstations.




Product Parameters
Environmental conditions of use
Altitude: not more than 2000m;
Ambient temperature: maximum temperature + 40°c :Minimum temperature: -15°c.
Relative humidity:<95%;
Earthquake intensity: 8 magnitude;
Installation site: no dripping, fire, no explosion risk, serious pollution, chemical corrosion and severe vibration in the place of use
Technical parameters
project |
unit |
FZN25-12 |
FZRN25-12 |
Rated voltage |
kV |
12 |
Rated frequency |
Hz |
50 |
Rated current |
A |
|
|
Rated insulation level |
1min power frequency withstand voltage |
kV |
Arc extinguishing chamber break 30 |
Valid values |
kV |
to M phase 42;Isolation break 48 |
Lightningimpulse withstand voltage(peak) |
|
Earth X phase 75;Isolation break 85 |
Rated dynamic stabilization current(peak) |
kA |
50 |
|
4S thermally stable current |
kA |
20 |
|
Rated active load breaking current |
A |
630 |
|
Rated closed-loop breaking current |
A |
630 |
|
Rated cable charging and breaking current |
A |
10 |
|
Rated open and break no-load transformer capacity |
kV |
1250 |
Rated transfer current |
A |
|
2000 |
Dissolver model |
|
|
SDLAJ-20 SFLAJ-12 |
The impactor outputs energy |
J |
|
2-5 |
Rated short-circuit closing current |
kA |
|
80(expected peak) |
The grounding switch is rated to stabilize the current |
kA |
50 |
Grounding switch 2s thermally stabilized current |
kA |
20 |
Auxiliary circuit voltage rating |
V |
~220~110 |
Mechanical life |
Time |
10000 |
The opening time triggered by the fuse |
ms |
|
30-40 |
The opening time triggered by the tripper |
ms |
40-50 |
Company Profile


Certifications

company workshop

Packaging & Shipping




1. Are you a trading company or manufacturer ?
We are a professional factory with 10 years experience in the field of High and Low voltage switchgears,Substation,transformers,cable distribution box and various electrical equipment, such as vacuum circuit breaker , load break switch etc.
Our factory is the excellent supplier of State Grid Corporation of China.
2. Do you accept customized serveice ?
We offer OEM/ODM service , can print your logo on product . our professional technical and quotation team can provice a satisfied project according to your drawing and parameters.
3. What is your MOQ?
Our MOQ is 1 piece.
4. How long is your delivery lead time ?
It depends on your product requirement and quantity . Generally , 5~10 working days is available
5. How do you solve quality problems?
Please porvide detailed photoes of quality problems. our technical and quality testing department will analyse.we will make a satisfied soluton within 2 days .
6. What is your payment terms ?
30%T/T in advance,70% before shipment . West union , L/C are also acceptable .