HRW11-10KV Outdoor Drop-out Fuse Cutout

HRW11-10KV Outdoor Drop-out Fuse Cutout

Short Description:

Ⅰ.Summary Drop-out fuse and pull load fuse are outdoor high voltage protection appliances.It is installed on the high voltage side of power distribution transformer or on the main line of the power line, which is used as a short circuit, overload protection and load current of transformer and line.The drop-out fuse is composed of two parts: insulated bracket and fuse tube. The static contact head is installed on both ends of the insulation bracket, and the moving contact is installed on both ...


  • FOB Price: US $0.5 - 9,999 / Piece
  • Min.Order Quantity: 100 Piece/Pieces
  • Supply Ability: 10000 Piece/Pieces per Month
  • Port: Ningbo
  • Payment Terms: L/C,D/A,D/P,T/T
  • Product Detail

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    Ⅰ.Summary

    Drop-out fuse and pull load fuse are outdoor high voltage protection appliances.It is installed on the high voltage side of power distribution transformer or on the main line of the power line, which is used as a short circuit, overload protection and load current of transformer and line.The drop-out fuse is composed of two parts: insulated bracket and fuse tube. The static contact head is installed on both ends of the insulation bracket, and the moving contact is installed on both ends of the fuse tube.The fuse tube consists of an inner tube with an arc suppression tube and a phenolic paper tube or epoxy glass tube.The pull drop -out fuse is used to enhance the flexible auxiliary contact and the extinguishing cap, which is used to separate the load current.

    When drop-out fuse are in normal operation,The fuse tube forms a closed position after the fuse tensioning,When the system failure occurs, the fault current causes the fuse fusing rapidly, and form the arc, arc suppression tube is heated by the arc tube ,decomposition out large amounts of gas, forming high pressure in the embassy, and blew vertically along the pipe ,arc is quickly elongated and put out, the fuse is fused, the lower moving contact head lose tension and turned down, locking mechanism, release the fuse tube, fuse tube drops, form a clear open position, when the load is needed, it starts moving contact with insulation stick, the active, static contact is still contact, continue to pull insulation stick contact with contact, the auxiliary contact separates, between the auxiliary contact comes into being an arc,. The arc is elongated in the inclosure slit , at the same time arcing shield produces gas , when the current is over zero, the arc is extinguished.

    Ⅱ.Purpose: outdoor high-voltage fuse is suitable for below 35 kw and voltage frequency 50 hz in the power system only used as transmission lines, power transformer overload and short circuit protection,Mechanical life is greater than 2,000 times.

    . Use Conditions

    1, apply to the environmental temperature ceiling 40 ℃, the lower limit to -30 ℃.

    2. The elevation is not exceeding 1000m and the wind speed is not greater than 35m/s

    The fuse is not suitable for the following premises

    A place where there is a danger of fuel or explosion

    A place of intense vibration or shock

    There are different electrochemical gases and severe air pollution, smoke areas.

    Iv. Introduction Of Structure

    The fuse is made up of two parts, the base and the arc suppression device.The bottom of the arc extinguishing tube is equipped with movable spring stents, keep the fuse in a state of tension,To ensure that the arc tube is locked in the lock position,when Circuit and transformer overload or short circuit,The fuse is fused and quickly drawn out of the arc tube.The extinguishing tube is designed for progressive exhaust to solve the contradiction of the current on the same fuse.

    Ⅴ.Model Specification

    1

    .Main Technical Parameters

    666

    TYPE

    Rated voltage KV

    Rated current A

    Breaking voltage kA

    IMPUSE VOLTAGE BIL

    Power-frequency withstand voltage KV

    RW11-10/100

    10

    100

    6.3

    110

    42

    RW11-10/200

    10

    200

    12.5

    110

    42

    .Appearance And Mounting Dimensions

    3 4

    NO

    PART NAME

    NO

    PART NAME

    1

    Back plate

    7

    Upper contacts

    2

    Long bolts

    8

    attachment hook

    3

    Mounting Brackat

    9

    Operation ring

    4

    Porcelain Insulator

    10

    Fuse tube

    5

    Connect

    11

    toggle joint

    6

    Upper housing

    12

    Lower housing

    Ⅷ. Ordering Instructions

    The order must be noted

    1) Product name and model specifications

    2) Order quantity

    3)Rated current of fuse

    4)Do you need spare parts or accessories 

    Ⅸ. Payment Term

    .Online trade assurance order,all is up to you

    .More payment terms could be provided(T/T.,L/C)

    Ⅹ. Shipping

    5

    Delivery time:10-20working days after payment receipt confirmed(based on actual quantity)

    Packing:standard export packing,or customized packing as your request

    Professional goods shipping forwarder.

     


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