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OEM 50Hz 630A 24kv VMD4 Vacuum range industrial Circuit Breaker for 12kv Switchgears

Categories Indoor Vacuum Circuit Breaker
Place of Origin: Zhejiang
Brand Name: ELECS
Certification: CE, QS, CCC
Model Number: VMD4
MOQ: 1 Set/Sets
Packaging Details: Standard Packaging
Delivery Time: 30 Days
Payment Terms: L/C,T/T,Western Union,MoneyGram,Paypal Escrow
Supply Ability: 2000pcs/year
Price: Negotiable
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    OEM 50Hz 630A 24kv VMD4 Vacuum range industrial Circuit Breaker for 12kv Switchgears

    OEM 50Hz 630A 24kv VMD4 Vacuum range industrial Circuit Breaker for 12kv Switchgears


    NO

    Item

    Unit

    Technical Date

    1

    Rated voltage

    kV

    24

    2

    Rated insulating level

    Rated short time power

    frequency withstand voltage

    (1min)

    65

    Rated lighting inpulse

    withstand voltage

    (peak value)

    125

    3

    Rated Frequency

    Hz

    50

    4

    Rated current

    A

    630

    5

    Rated short circuit breaking current

    kA

    20

    6

    Rated short time withstand current

    20

    7

    Rated peak withstand current

    50

    8

    Rated short-circuit closing current (peak value)

    50

    9

    4S rated short-time withstand current 4s

    20

    10

    Rated Dynamic Current

    50

    11

    Rated making surge current of capacitor bank

    12.5(The frequency is

    less than 1000Hz)

    12

    Rated breaking current of single/symmetrical capacitor bank

    A

    630/400

    13

    Duration of rated short-circuit current

    S

    4

    14

    Power frequency withstand voltage of secondary circuit

    V

    2000

    15

    Rated operationl voltage

    Making coil

    AC110/220 DC110/220

    Breaking coil

    AC110/220 DC110/220

    Energy-storage motor

    AC110/220 DC110/220

    16

    Making time (under Rated voltage)

    ms

    ≤60

    17

    Breaking time(under Rated voltage)

    ≤45




    18

    Permitted abrasion thickness of moving and fixed contacts

    mm

    3

    19

    Energy storage times

    S

    ≤15

    20

    Contactor clearance

    mm

    13± 1

    21

    Contacting travel

    4±1

    22

    Bounce time of Contactor during making

    ms

    ≤2

    23

    Different time of breaking / making of 3 phases

    ≤2

    24

    Average breaking speed

    1.1-1.7

    25

    Average making speed

    0.6-1.1

    26

    Rebound amplitude of contact breaking

    mm

    ≤3

    27

    Conductance circuit resistance

    µΩ

    ≤45 (630A)

    28

    Rated operating sequence

     

    O- θ -CO-180s-CO

    29

    Mechanical life

    times

    10000


    Outline Demension Drawing

    Dear friends, pls contact us for the outline demension drawing,

    we will give you quick reply.

    Summary

    The VMD4 series indoor circuit-breaker is our independent developed new generation 24 kv vacuuum circuit breaker.

    Its main characters as follows: the conductance circuit is installed in an three-phase insulating sleeve ,

    its mechanism and conductance circuit adopts front and rear layout.

    And the mechanism is our deveoped new design, with simple construction,

    reliable operation, and rich manufacturing experiences of thousands sets ,

    used and studied by many high-end vacuum circuit breaker manufacturers.

    Circuit Breaker’s Overall Structure

    Spring drive mechanism and circuit breaker main parts adopt integration design,

    primary conductance circuit and mechanism adopt front and rear layout,

    conductance circuit locates behind of circuit break, driving mechanism is front of circuit breaker,

    handcart pushing. Mechanism is under circuit breaker, and possess compact construction and small size.


    VMD4 series indoor VCB’s spring drive mechanism is plane layout,

    holding hand energy storing and motor energy storing function, compact outside size,

    good overall rigidity, reliable operation.

    VMD4 series indoor VCB’s drive mechanism is the extension version on matured 12kv VMD series drive mechanism,

    to assure circuit breaker whole machine’s reliability and stability.


    Technical standards


    All the technical parameters of breaker completely satisfy the Standards Of GB1984 AC Highvoltage Breaker,

    GB/T 11022 -1999 Common Specifications For High-Voltage Switchgear And Controlgear Standards,

    China Power Sector Standards DL403.

    Also meet the requirements of IEC62271-100, IEC56 and other main industrialized country’s similar standards


    Scope of application

    It is universally used in power plant , electric network ,

    metallurgy industry petrochemical industry and infrastructures, such as airport , subway, building.

    VMD4 circuit breaker can be applied to control and protect cable , trolly wire , transformer,

    generator and capacitor bank in distribution system. .

    Quality OEM 50Hz 630A 24kv VMD4 Vacuum range industrial Circuit Breaker for 12kv Switchgears for sale
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