Phase Tracking Discriminator Equipment with Cable Connector for Ground Transformer with Hollow Pipe Having Larger Inner Diameter and Longer Length than Probe Pin

Abstract

The phase tracking discriminator equipment and usage method equipped with a cable connector for a ground transformer according to the present invention is characterized by being easy to install by connecting a clip connection part (15) to which a transmitter clip (20) that sends pulses from a transmitter (30) is attached through a probe pin contact plate (13) at one end of a cable connector (10) which has a hollow structure made of an external insulating material, thereby being inserted into the probe pin inside the ground transformer elbow, and also easy to install the transmitter clip using an insertion opening, and in particular, the external insulating material of the cable connector makes it possible to prevent safety accidents to workers caused by the maximum instantaneous current of 100A of the transmitter.

Description

Technology Field

[0001] The present invention relates to a cable connector for a phase tracking discriminator, and more specifically, to a phase tracking discriminator equipment and a method of use equipped with a cable connector for a ground transformer that is easy to install by being inserted into a probe pin inside the elbow of a ground transformer. Background Technology

[0002] In general, construction work involving the cutting of extra-high voltage underground cables is required to use phase tracking identifiers to prevent erroneous cutting of underground lines.

[0003] To this end, the phase tracking discriminator applies a method of connecting the pulse signal transmitter to the underground cable using a cable connector for switchgear lines.

[0004] Therefore, the above-mentioned phase tracking discriminator is composed of equipment including a transmitter, a receiver, a cable connector, a clamp sensor, and a transmitter clip, etc.

[0005] For example, the transmitter generates a pulse current of up to 100A in a sequence of 1 time / 2 seconds, the receiver receives the signal in 10 steps for 3dB to 24dB, the cable connector connects the transmitter to the switchgear cable, the clamp sensor detects the electric field around the underground cable, and the transmitter clip is a lead clip that connects the pulse of the transmitter to the cable connector. Prior art literature

[0006] Korean Patent Publication KR 10-2024-0086120 (June 18, 2024) The problem to be solved

[0007] However, currently, the cable connectors for the phase tracking discriminator are provided only for ground switches, resulting in a problem where connectors for ground transformers are missing.

[0008] As a result, a transmitter clip is currently connected to the probe pin conductor inside the ground transformer elbow; however, this connection is prone to detachment due to weak fastening force, and there is inevitably a risk of safety accidents caused by arbitrary connections resulting from the absence of dedicated diagnostic equipment.

[0009] As such, the absence of a cable connector for the above-ground transformer results in the failure to perform and reduced utilization of the phase tracking detector for the transformer line (e.g., 60 mm²). This leads to a decline in construction quality as workers connect the phase tracking detector to the underground cable in an arbitrary manner when using the transformer line, and the detachment of the cable connection point during use due to the absence of a standardized cable connector causes safety accidents for workers due to the maximum instantaneous current of 100A generated when the transmitter operates.

[0010] Accordingly, the present invention, taking into account the above points, aims to provide a phase tracking discriminator device and a method of use equipped with a cable connector for a ground transformer that is easy to install by being inserted into the probe pin inside the elbow of the ground transformer and easy to install the transmitter clip using the insertion port, and in particular, can prevent worker safety accidents caused by the maximum instantaneous current of 100A of the transmitter through the external insulating material of the cable connector. means of solving the problem

[0011] The cable connector for a ground transformer according to the present invention for achieving the above-mentioned purpose is characterized by having a probe pin contact plate at one end and a clip connection part at the other end, and having a hollow structure made of an external insulating material through which a pulse is sent from a transmitter clip, which is water, to the clip connection part.

[0012] Preferably, the cable connector is made of a hollow pipe having a length longer than the probe pin of the ground transformer elbow that contacts the probe pin contact plate.

[0013] Preferably, the hollow pipe is provided with the probe pin contact plate in its inner diameter, and the clip connection is formed at the end of the pipe to extend the pipe length, the probe pin contact plate forms a contact state with the probe pin as a protrusion, and the clip connection has a structure with an insertion opening through which the clamp of the transmitter clip is gripped.

[0014] Furthermore, the phase tracking discriminator equipment for a ground transformer according to the present invention for achieving the above-mentioned purpose is characterized by comprising: a hollow cable connector made of an external insulating material having a probe pin contact plate at one end and a clip connection part at the other end; a transmitter clip that is engaged with the clip connection part and sends a pulse from a transmitter to the cable connector; a transmitter connected to the transmitter clip and generating a pulse current; a receiver that receives signals in multiple stages; and a clamp sensor that detects an electric field around an underground cable.

[0015] In addition, the method of using the phase tracking discriminator equipment equipped with a cable connector for a ground transformer according to the present invention for achieving the above-mentioned purpose is characterized by the following steps: identifying a ground transformer elbow that requires the use of a phase tracking discriminator; selecting a cable connector for a probe pin of the ground transformer elbow; fitting a hollow pipe of the cable connector onto the probe pin; connecting a transmitter clip that transmits a pulse to the end of the hollow pipe; and installing any one of a transmitter that generates the pulse, a receiver that receives the signal, and a clamp sensor that detects an electric field.

[0016] Preferably, the hollow pipe forms a fixing force as a probe pin contact plate provided inside contacts the probe pin, and the clamp of the transmitter clip is connected by being gripped in an insertion hole drilled in the clip connection part provided at the end. Effects of the invention

[0017] The phase tracking discriminator equipment equipped with a cable connector for a ground transformer according to the present invention and the method of use provide standardization and construction methods for the phase tracking discriminator equipment using a cable connector tailored to the ground transformer line, thereby improving construction quality and ensuring worker safety through the provision of standardized phase tracking discriminator equipment. Brief explanation of the drawing

[0018] FIG. 1 is a configuration diagram of a phase tracking discriminator equipment equipped with a cable connector for a ground transformer according to the present invention, and FIG. 2 is a procedure for using the phase tracking discriminator equipment equipped with a cable connector for a ground transformer according to the present invention. Specific details for implementing the invention

[0019] Embodiments of the present invention will be described in detail below with reference to the attached illustrative drawings. Since these embodiments are merely examples and can be implemented in various different forms by those skilled in the art to which the present invention pertains, the embodiments described herein are not limited to the examples described herein.

[0020] Referring to FIG. 1, the phase tracking discriminator equipment (1) includes a cable connector (10), a transmitter clip (20), a transmitter (30), a receiver (40), and a clamp sensor (50).

[0021] Specifically, the above cable connector (10) is a cable connector for a ground transformer made of an external insulating material and consists of a hollow pipe (11), a probe pin contact plate (13), and a clip connection part (15).

[0022] In particular, the above cable connector (10) can be manufactured in various sizes to fit the probe pin (110) of the ground transformer elbow (100).

[0023] For example, the hollow pipe (11) has a diameter that fits into the probe pin (110) of the ground transformer elbow (100), and is formed with an inner diameter larger than the probe pin (110) and a long length, and the probe pin contact plate (13) is attached to the inner diameter at one end of the hollow pipe (11) and contacts the probe pin (110), and the clip connection part (15) is attached to the other end of the hollow pipe (11) to extend the pipe length and provide a part where the transmitter clip (20) is gripped.

[0024] In particular, the probe pin contact plate (13) has elastic force to maintain contact with the probe pin (110) by applying a circular plate spring that forms a contact state with the probe pin (110) through a protrusion that protrudes into the inner diameter while attached to the inner diameter of the hollow pipe (11).

[0025] In addition, the clip connecting part (15) is formed as a cylindrical structure with an insertion opening (15a) so that the clip portion at the tip of the transmitter clip (20) can be easily engaged.

[0026] For example, the above transmitter clip (20) is a lead clip and has a wire with a clamp structure at its end that is clamped to the clip connection part (15) of the cable connector (10), thereby clamping to the insertion port (15a) and sending the pulse of the transmitter (30) toward the cable connector (10).

[0027] And the transmitter (30) generates a pulse current of up to 100A in a sequence of 1 time / 2 seconds, the receiver (40) receives the signal in 10 steps for 3dB to 24dB, and the clamp sensor (50) detects an electric field around the underground cable.

[0028] Meanwhile, FIG. 2 is a method of using a phase tracking discriminator equipment (1) equipped with a cable connector (10) for a ground transformer, which is performed in the following steps: S1, a step of verifying the ground transformer elbow (100); S2, a step of selecting the cable connector (10); S3, a step of connecting the cable connector (10) and the probe pin (110); S4, a step of connecting the cable connector (10) and the transmitter clip (20); and S5, a step of installing other equipment.

[0029] For example, the above ground transformer elbow verification (S1) is performed on a ground transformer elbow (100) in a construction area involving the cutting of extra-high voltage underground cables, where erroneous cutting of the underground line must be prevented by verifying the phase tracking discriminator. Therefore, the above cable connector selection (S2) selects a cable connector suitable for the probe pin (110) of the corresponding ground transformer elbow (100) from among various types of cable connectors (10).

[0030] Next, the probe pin connection (S3) is completed by inserting one end of the cable connector (10) with the probe pin (110) to make contact with the probe pin contact plate (13), and the transmitter clip connection (S4) is completed by clamping the clip of the transmitter clip (20) into the insertion hole (15a) of the clip connection part (15) on the other end.

[0031] Finally, the installation of the above other equipment (S5) is completed by connecting a transmitter (30) that generates a pulse current of up to 100A in a sequence of 1 time / 2 seconds to the transmitter clip (20) while the cable connector (10) and the transmitter clip (20) are connected, and by installing a receiver (40) that receives signals in 10 steps for 3dB to 24dB and a clamp sensor (50) that detects an electric field around the underground cable.

[0032] As described above, the phase tracking discriminator equipment and usage method equipped with a cable connector for a ground transformer according to the present embodiment is connected to a probe pin (110) of a ground transformer elbow (100) through a probe pin contact plate (13) via one end of a cable connector (10) which is a hollow structure made of an external insulating material, and a clip connection part (15) to which a transmitter clip (20) that sends a pulse of a transmitter (30) is attached via the other end, thereby being inserted into the probe pin inside the ground transformer elbow, making installation easy, and installation of the transmitter clip using an insertion port is also easy, and in particular, due to the external insulating material of the cable connector, it is possible to prevent worker safety accidents caused by the maximum instantaneous current of 100A of the transmitter. Explanation of the symbols

[0033] 1 : Image tracking discriminator equipment 10 : Cable connector 11: Hollow pipe 13: Probe pin contact plate 15 : Clip connector 15a : Insertion port 20 : Transmitter clip 30 : Transmitter 40 : Receiver 50 : Clamp sensor 100 : Ground transformer elbow 110 : Probe pin

Claims

Claim 1 A cable connector for a ground transformer having a hollow pipe made of an external insulating material having a larger inner diameter and a longer length than the probe pin, wherein the probe pin contact plate is provided at one end and the clip connection part is provided at the other end, and a pulse is sent from a transmitter clip, which is water, to the clip connection part; wherein the probe pin contact plate is attached to the inner diameter at one end of the hollow pipe and contacts the probe pin, and the probe pin contact plate has elastic force to maintain the contact state with the probe pin by applying a circular plate spring that forms a contact state with the probe pin through a protrusion protruding into the inner diameter while attached to the inner diameter of the hollow pipe, and the hollow pipe has a longer length than the probe pin of the ground transformer elbow that contacts the probe pin contact plate, and the hollow pipe has a diameter that fits into the probe pin of the ground transformer elbow and is formed with an inner diameter larger than the probe pin, and the cable connector is manufactured in various sizes to fit the probe pin of the ground transformer elbow.

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