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Thermal change self-early warning type mutual inductor

A transformer and pre-sinking technology, applied in the field of transformers, can solve problems such as service life impact, potential safety hazards, and low heat dissipation, and achieve the effects of reducing the impact of service life, reducing potential safety hazards, and improving early warning effects.

Inactive Publication Date: 2022-03-18
邢程
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When the transformer is in use, generally when the shell temperature is lower than 60°C, its safe and stable operation can be guaranteed. However, when it is used for a long time, the internal epoxy resin layer has low heat dissipation due to oxidation and other problems, resulting in the presence of transformers. Excessive heating, but it is difficult to detect excessive heating in time, and when the transformer is overheated, it is easy to affect its service life, and even has certain safety hazards

Method used

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  • Thermal change self-early warning type mutual inductor
  • Thermal change self-early warning type mutual inductor
  • Thermal change self-early warning type mutual inductor

Examples

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Embodiment 1

[0036] see figure 1 , a heat-changing self-warning transformer, including a magnetic core 2, a casing 1 located outside the magnetic core 2, and an epoxy resin layer 3 poured between the casing 1 and the magnetic core 2, and a double variable transformer is attached to the upper end of the casing 1 Precautionary note 4.

[0037] see figure 2 The double variable warning strip 4 includes a bottom adhesive sheet 41 attached to the shell 1, an outer flat layer 42 outside the bottom adhesive sheet 41, and a plurality of evenly distributed inner supports are arranged between the bottom adhesive sheet 41 and the outer flat layer 42 The hemispherical rod 5 and the plurality of heat sink variable rods 6, the plurality of heat sink variable rods 6 and the inner support hemispherical rods 5 are spaced apart from each other, and the upper ends of the plurality of heat sink variable rods 6 are fixed through the outer flat layer 42 and extend to Outside the outer leveling layer 42, the c...

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Abstract

The invention discloses a thermal change self-early-warning type mutual inductor, and belongs to the field of mutual inductors, according to the thermal change self-early-warning type mutual inductor, through the arrangement of a double-variable early-warning strip, after the mutual inductor is excessively heated, the lower end of a heat sink variable rod is hot-melted gradually, the upper end of the heat sink variable rod sinks gradually, and then the upper surface of the double-variable early-warning strip is driven to sink; the double-variable early warning strip is integrally of a multi-concave structure, the effect of timely early warning on workers is achieved, the problem of excessive heating is solved in time, the influence on the service life of the mutual inductor is reduced, meanwhile, potential safety hazards are reduced, in addition, along with the prolonging of the overheating phenomenon, colored liquid at the lower end of the heat sink variable rod overflows and gradually ascends along the colored liquid, and the working efficiency is improved. Therefore, the double-variable early warning strip is discolored at the sunken part, and the early warning effect is further improved.

Description

technical field [0001] The invention relates to the field of transformers, in particular to a heat-changing self-warning transformer. Background technique [0002] Electric energy metering device is a measuring instrument used to measure and record power generation, power supply (mutual supply), plant power consumption, line loss power and user power consumption. Electric energy metering device refers to an electric energy meter (active and reactive energy meter, maximum demand meter, multi-rate electric energy meter, etc.), metering transformers (including voltage transformers and current transformers) and secondary connecting wires. overall. [0003] The transformer for power system is a special transformer that transmits the information of high voltage and high current of the power grid to the secondary side of low voltage and small current for metering, measuring instruments, relay protection and automatic devices. The contact element, its primary winding is connected ...

Claims

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Application Information

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IPC IPC(8): H01F27/24H01F27/02H01F38/20
CPCH01F27/24H01F27/02H01F38/20
Inventor 邢程
Owner 邢程
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