The method of connecting the power line with the anti-connection bushing of the power lead wire of the transformer
A power lead and bushing connection technology, applied in the direction of connection, connection, connection insulation, etc. where permanent deformation works, can solve the problems of poor contact, affecting the accuracy of measurement, easy oxidation, etc., to avoid damage, avoid oxidation, Measure the effect of numerically accurate
Active Publication Date: 2016-11-23
STATE GRID HEBEI RAOYANG COUNTY POWER SUPPLY
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Problems solved by technology
The power supply of the transformer is generally obtained through the main power line. The power line is generally an aluminum wire with an insulating layer, and the power lead of the transformer is generally a plastic copper wire. The copper-aluminum contact is more likely to oxidize and cause poor contact, and the binding is easy to loose. Or fall off, affecting the accuracy of measurement
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[0034] The following is a further description of the anti-false bushing for transformer power lead wires proposed by the present invention in conjunction with the accompanying drawings.
[0035] Such as figure 1 , image 3 , Figure 4 and Figure 5 As shown, the schematic diagram of the structure of the anti-connection bushing for the power lead wire of the transformer. The anti-connection bushing for power supply leads of the transformer includes a copper pipe body 1 , and a connection gap 2 is arranged at the end of the copper pipe body 1 . Select the copper pipe body 1 with an inner diameter slightly larger than the outer diameter of the power cord insulation layer, insert the copper pipe body from the end of the power cord, and first place the copper pipe body under the opening of the power cord, and wind the transformer power supply After lead wires; snap the transformer power lead wires into the wiring gap, press the copper pipe body tightly with hydraulic pliers, an...
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The invention belongs to the technical field of wiring devices for mutual inductors, and discloses a virtual connection prevention sleeve for a power lead of a mutual inductor and a method for connecting a power cord. The sleeve is mainly and technically characterized by comprising a copper tube body, wherein a wiring nick is formed in the end part of the copper tube body. The method comprises the following steps of selecting the copper tube body of which the internal diameter is slightly larger than the external diameter of an insulating layer of the power cord; sleeving the power cord with the copper tube body from the end part of the power cord, wherein the copper tube body is arranged below a wiring opening of the power cord at first; clamping the power lead into the wiring nick after the power lead of the mutual inductor is wound, tightly pressing the copper tube body by virtue of a hydraulic clamp, and winding an insulating tape on the outer side of the copper tube body, wherein the two ends of the copper tube are preferably sealed by an insulating sealant before the insulating tape is wound, so that the power lead of the mutual inductor and the power cord can be prevented from being loosened and separated, and a measurement numerical value is more accurate.
Description
technical field [0001] The invention belongs to the technical field of transformer wiring devices, and in particular relates to an anti-connection bushing for power lead wires of transformers and a method for connecting power wires. Background technique [0002] In the power supply line, the current and voltage are very different. In order to facilitate the secondary instrument measurement, it needs to be converted into a relatively uniform current. In addition, the voltage on the line is relatively high. It is very dangerous to measure it directly. The current transformer plays the role of current conversion and electrical isolation. Most of the display instruments are pointer-type current and voltmeters, so most of the secondary currents of current transformers are ampere-level. Therefore, transformers are used a lot on power supply lines. The power supply of the transformer is generally obtained through the main power line. The power line is generally an aluminum wire w...
Claims
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IPC IPC(8): H01R4/14H01R4/20H01R4/70H01R4/60H01R4/62H01R43/00
CPCH01R4/14H01R4/20H01R4/60H01R4/62H01R4/70H01R43/00
Inventor 靳晓锴李萌杨瑞霞
Owner STATE GRID HEBEI RAOYANG COUNTY POWER SUPPLY