Inquiry
Form loading...
Products Categories
Featured Products

vacuum load break switch 12kv 24kv 36kv FZN25-12D/T630-20 Indoor Medium Voltage Swith

FZN25-12D/T630-20 Type Indoor AC high voltage load switch is three-phase AC 50Hz, rated voltage of 12kV and indoor installations, for industrial and mining enterprises for distribution in clinics and substations and other occasions, as electrical protection and control facilities for the division and load current, loop current, no load transformer and cable charging current.

    Product Description

    FZN25-12D/T630-20 Indoor load break  switch

    Product Description

    FZN25-12D/T630-20 Type Indoor AC high voltage load switch is three-phase AC 50Hz, rated voltage of 12kV and indoor installations, for industrial and mining enterprises for distribution in clinics and substations and other occasions, as electrical protection and control facilities for the division and load current, loop current, no load transformer and cable charging current.

           As the combination of electrical transformers and other electrical equipment on the protective effect than the circuit more reliable, more economical, especially for rings, double radiation power supply units and box-type substation.

           Product overall structure in the form of operator arrangement in the primary loop on the side.(according to user requirements to provide the primary loop right and left side or the form of positive).Leading electrical part by insulation cover, static contact, coils, vacuum arcing chamber, such as flow fuse combination also electrical appliances co., LTD., with short circuit protection function.

     Environment condition

    1. The altitude: under 1000M.

    2. The ambient temperature: -25℃-+40℃.

    3. The relative humidity of air: monthly≤90%, daily≤95%.

    4. Amplitude: Earthquake degree 8.

    5. Application occasions should free from fire, inflammables, explosives, corrosives and severe vibration.

    Structural features

    1. load switch, grounding switch, fuse and instructions in a framework that can be flexibly combined, compact, convenient and easy to install a small volume.

    2. the fracture is direct acting arrangement. dynamic and thermal stability current parameters is high, time to complete the operation. 

    3. with static contact insulation cover, so RMU in the structure to achieve the isolation, eliminating the phase insulating spacer, fracture insulation boards that can prevent internal arc short circuit accident.

    4. has a unique valve structure, load switch after opening the shutter automatically fracture isolation, good protective properties. 

    5. load switch and grounding switch, a reliable mechanical locking device between the fuse. to meet the "Five Anti requirements.

    Two forms of electric operations 6, with manual operation and AC and DC operating power supply, easy to implement power system, "three remote' requirements.

    Technical parameter

    No.

    Item

    Unit

    Value

    1

    Rated voltage

    kV

    12

    2

    Rated frequency

    Hz

    50

    3

    Rated current

    A

    630

    4

    Rated insulation level

    1min power frequency withstand voltage

    kV

    Arc-quenching chamber fracture 30

    Effective value

    Earth ,phase 42, insulating fracture 48

    Lightning impulse withstand voltage (peak)

    Earth ,phase 75, insulating fracture 85

    5

    Rated dynamic current (peak)

    kA

    50

     

    6

    4S thermal current

    kA

    20

     

    7

    Rated power load breaking current

    A

    630

     

    8

    Rated closed-loop breaking current

    A

    630

     

    9

    Rated cable charge breaking current

    A

    10

     

    10

    Rated breaking no-load transformer capacity

    kV

    1250

    11

    Rated transfer current

    A

     

    2000

    12

    Fuse model

     

     

    SDLAJ-12

    13

    Striker output energy

    J

    2~5

    14

    Rated short-circuit closed current

    kA

    50

    80(predictive value)