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    Epoxy Resin Outdoor Combined Transformers Indoor or Outdoor Combined Transformers

    PRODUCT INTRODUCTION

    JLSGW1-10A this combined instrument transformer is for use with electrical measuring instruments and electrical protective devices

    PRODUCT DETAILS

    JLSGW1-10A this combined instrument transformer is for use with electrical measuring instruments and electrical protective devices. It consists of two current transformers and two voltage transformers in the same case.

    Our combined instrument transformer is especially suitable for HV metering, to do so, two voltage transformers shall be connected in V type, while two current transformers connect serially to phase A and C. The instrument transformer can be fixed on the post of transmitting line. The secondary output connects directly to an independent HV metering box. Users can choose certain connection in accordance with different conditions.

    Combined Instrument Transformer Main Technical Parameters

    Items

    Frequency50Hz      No. of phase3

    VT

    Rated voltage ratiokV/kV

    10/0.1

    Connection method for three   phase metering

    Two voltage transformers shall be connected in V   type

    Accuracy class

    0.2

    Rated secondary outputVA

    15

    Limited outputVA

    500

    Secondary load power factor

    0.8lag

    CT

    Rated current ratioA/A

    10~600/5

    Connection method for three phase metering

    2 CTs connected   to A,C in primary side in serial.

    Accuracy class

    0.2S

    Rated outputVA

    15

    Secondary load power factor

    0.8lag

    Rated short-time thermal current(r.m.s) IthkA

    100I1n

    Rated dynamic current (Peak) IdynkA

    2.5Ith

    Product Feature

    This HV measurement set consists of 2 single phase VTs, 2 single phase CTs and 1 surge arresters. The instrument transformers are insulated by outdoor epoxy resin which is suitable for outdoor use. This measurement set is with compact structure, small volume, high accuracy and excellent performance.

    In order to meet the requirement of outdoor high voltage metering usage, 2 VTs are in V style connection and 2 CTs are connected serially to phase A and C. There are 2 surge arresters in the power inlet terminal. The voltage loop adopts anti-resonance design, which is rated to increase the primary current by 200% and has strong overload capacity.

    Outline drawing and installation dimensions 

     

    Electrical Schematic Diagram

     

     

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