Transformer temperature measurement resistor apparatus

Transformer temperature measurement resistor apparatus

  • CN 105,390,235 A
  • Filed: 11/30/2012
  • Published: 03/09/2016
  • Est. Priority Date: 11/30/2012
  • Status: Active Application
First Claim
Patent Images

1. a transformer temperature detecting resistance device, comprises transformer case (3), temperature detecting resistance (4) and rubber seal (5);

  • Transformer case (3) is provided with housing main body (30), temperature detecting resistance installs stake (31) and temperature measuring box (32);

    The housing main body (30) of transformer case (3) is provided with the temperature-measuring port of a circular opening upwards, and temperature detecting resistance installs stake (31) cylindrical shape in up/down perforation, and the center through hole that temperature detecting resistance installs stake (31) is inner bolt hole;

    Temperature detecting resistance is installed stake (31) and to be sealedly and fixedly connected the temperature-measuring port place of the housing main body (30) in transformer case (3), and be positioned at housing main body (30) outward, the top of the temperature-measuring port of housing main body (30);

    Temperature measuring box (32) cylindrical shape in opening upwards, temperature measuring box (32) is sealedly and fixedly connected the temperature-measuring port place of the housing main body (30) in transformer case (3), and is positioned at housing main body (30), and is positioned at the below of the temperature-measuring port of housing main body (30);

    The inner chamber that temperature detecting resistance installs the center through hole of stake (31), the temperature-measuring port of housing main body (30) and temperature measuring box (32) is mutually through;

    Transformer oil (6) is had in temperature measuring box (32);

    Temperature detecting resistance (4) comprises binding post (41), be connected to the hollow hex bolts (42) of binding post (41) lower end and be connected to the resistor rod (43) of hex bolts (42) lower end;

    Hex bolts (42) is steel integral piece, by being positioned at the hollow hexagon-head (42-1) of upside and the threaded portion (42-2) below being positioned at is formed, the internal thread that the external screw thread of the threaded portion (42-2) of hex bolts (42) and temperature detecting resistance install the center through hole of stake (31) matches;

    Rubber seal (5) is horizontally disposed with, and the temperature detecting resistance being positioned at transformer case (3) is installed in stake (31);

    The head (42-1) being positioned at upside of the hex bolts (42) of temperature detecting resistance (4) is oppositely arranged by the upper side of its lower surface and rubber seal (5);

    It is characterized in that;

    also comprise protective cover (10);

    Protective cover (10) comprises shell (1) and is connected to the installation sheet (2) on shell (1);

    The edge that installation sheet (2) is positioned at the bottom of shell (1) is positioned at the sagittal middle part of shell (1);

    Shell (1) is in the spherical crown shape that Open Side Down;

    Installation sheet (2) in tabular, along left and right to being horizontally disposed with;

    Installation sheet (2) be provided be positioned at its central authorities axis vertically to arrange installation through hole (24);

    Installation sheet (2) is fixed together by the bottom outer-edge of its outer ledge and shell (1);

    And the center of circle of circle that the bottom outer-edge of shell (1) surrounds is positioned on the axis of the upward and downward of the installation through hole (24) of installation sheet (2);

    Protective cover (10) is positioned at the top of rubber seal (5), and contacted by the upper side of its installation sheet (2) with rubber seal (5), and the center through hole that the center through hole of the installation through hole (24) of installation sheet (2), rubber seal (5) and temperature detecting resistance install stake (31) aligns;

    Temperature detecting resistance (4) stretches in the transformer oil (6) in the temperature measuring box (32) of transformer case (3) after passing the installation through hole (24) of installation sheet (2) and the center through hole of rubber seal (5) successively from the top down by its resistor rod (43), and rotate the hex bolts (42) of temperature detecting resistance (4), the internal thread making its threaded portion (42-2) and temperature detecting resistance install stake (31) is meshed and screws, thus makes temperature detecting resistance (4) be fixed on transformer case (3) by rubber seal (5) sealing;

    The installation sheet (2) of described protective cover (10) comprises rectangular slab portion (21), is connected to the first cambered plate portion (22) in left side, rectangular slab portion (21) and is connected to the second cambered plate portion (23) on right side, rectangular slab portion (21) from right from left;

    Through hole (24) is installed vertically to the central part being arranged on rectangular slab portion (21), and the dead in line of the upward and downward of this installation through hole (24) is in the axis of the upward and downward in the axis of the upward and downward in the first cambered plate portion (22) and the second cambered plate portion (23);

    The radius in the first cambered plate portion (22) and the second cambered plate portion (23) is all equal with the radius of the circle that the bottom outer-edge of shell (1) surrounds;

    By the first cambered plate portion on the left of it, (the left side central portion seal welding of the bottom outer-edge of the left side edge of 22 and shell (1) is fixed together installation sheet (2), and is fixed together by the right side central seal welding of the right side edge in the second cambered plate portion (23) on the right side of it and the bottom outer-edge of shell (1).

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×