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Switchgear and control gear – SCG

of Series HVDS up to 10 kV
Switchgear and control gear – SCG

Request price on «HVDS» or contact our manager a convenient way for you

Description

Switchgear and control gear (SCG) of Series HVDS (high-voltage distribution switch) are designed for operation in 3-phase 50 Hz and 60 Hz, 6 kV and 10 kV rated AC voltage electric installations for a system with a neutral insulated or earthed via arc suppression coil, in moderate (N) climate, placement category 1 according to GOST 15150.

SCG are used for power supply connection and protection of high power mining electrical consumers’ electric equipment. Their operation principle is determined by an aggregate of circuitry of the main and auxiliary circuits.

Specifications

Parameter designation Parameter value
High-voltage (HV) side rated voltage, kV 6; 10
High-voltage (HV) side maximum operating voltage, kV 7,2; 12
Rated current of main circuits, A 630; 1000; 1600
Rated breaking current of the chamber SUM with vacuum circuit breaker, kA
20; 31,5
Peak withstand current of cells with vacuum circuit breaker, kA 32; 51
Rated voltage of auxiliary circuits, V:
– AC and DC protection, control and alarm circuits
– voltage measuring transformers circuits
– lighting

220
100
36

 

Symbol structure

SCG Х - ХХХ - Х - Х / Х - Х ХХ

SCG is a switchgear and control gear manufactured by Chelyabinsk Electric Equipment Plant LLC

O – outdoor installation

Modification: 2-12P; HVDS; 2HVDC

Rated voltage, kV

Classification of lead-out on incoming line side:

  • C – cable;
  • O – overhead

Classification of lead-out on outgoing line side:

  • C – cable;
  • O – overhead

Rated current, A (630; 1000; 1600; 2000; 2500; 3150)

Climatic modification and placement category according to GOST15150-69

 

  • Come - we will pay

    Travel expenses, airfare, hotel at our expense

    The promotion is valid until December 1, 2016

  • Delivery at our expense

    When ordering the equipment in the amount of 5 mln. rub.

    The promotion is valid until December 1, 2016

  • Design classification

    SUM classification attributes Design
    Insulation level according to GOST 1516.3 Normal, level "b"
    Insulation type Air insulation
    Busbar insulation
    With non-insulated buses
    With insulated buses
    n terms of type of high-voltage line connections
    Cable;
    Overhead
    In terms of servicing conditions
    With bilateral maintenance;
    With unilateral maintenance
    In terms of installation method For outdoor installation
    In terms of climatic modifications and placement category
    Placement category 1, climatic modification N according to GOST 15150, GOST 15543.1

     

    Structural design

    The high-voltage distribution switch is a metal structure made of sheet roll-formed sections. The housing components manufacturing process starts in the design engineering department, then the drawings are sent to the laser machine shop where future housing parts are being cut from sheet metal. Upon completion of the cutting process, fabricated materials are sent to the bending machine, and then welding and surface preparation for powder coating occur. Metal thickness of the housing parts varies from 1 to 5 mm.

    Structural design
    Structural design

    Equipment of the main and auxiliary circuits is located inside HVDS. Handles of driving units and control switches, protection and alarm relays, metering and accounting instruments are installed in the relay protection and automation (RPA) compartment at the front of HVDS.

    Doors located at the front and rear side of HVDS provide access to the equipment.The number of doors depends on HVDS design features.

    Provisions are made in the HVDS design for separation of the compartment with auxiliary circuits devices from highvoltage equipment. HVDS also provides the possibility of cable assembly compartment separation from the vacuum circuit breaker compartment by means of the fixed metal partition. Interior lighting of 36 V is provided in the high-voltage distribution switches.

    All the devices and instruments installed in HVDS which shall be earthed, are connected to earth. Special earthing points intended for HVDS housing connection to the earthing device and for temporary earth arrangement, are located at the HVDS housing. Metal-on-metal connection of all the HVDS parts is accomplished through the use of cut-in washers in bolted connections.

    The following locks are activated to avoid erroneous actions in case of routine switching during maintenance and repair in the HVDS:

    • lock preventing line- and bus-isolating switches switching on and off when the high-voltage circuit breaker is activated;
    • lock preventing earthing blades switching on when the disconnecting switch operating blades are activated;
    • lock preventing disconnecting switches switching on when earthing blades are activated;
    • access lock to the high-voltage equipment compartment when the incoming breaker operating blades are activated.

    The possibility of block locks and earthing switch position arresters installation for implementation of other types of locks (operational security, etc.) according to the auxiliary circuits schemes is provided on request.

    HVDS design allows for its mounting on skids. Skids are produced and supplied separately.

    Structural design
    Structural design

    Reviews

    Нашим предприятием - МП «ГЭС» г. Ханты-Мансийск после обзора изготовителей щитового оборудования 6кВ был размещен заказ на изготовление 2 ячеек карьерных наружной установки (ЯКНО) на ООО «ЧЗЭО». В пользу выбора данного производителя было: наличие на предприятии конструкторского отдела, возможность изготовления металлоконструкций по индивидуальным чертежам на высококачественном оборудовании, а также при необходимости и сертификация новой продукции в кратчайшие сроки.

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  • Come - we will pay

    Travel expenses, airfare, hotel at our expense

    The promotion is valid until December 1, 2016

  • Delivery at our expense

    When ordering the equipment in the amount of 5 mln. rub.

    The promotion is valid until December 1, 2016