A new high-voltage nuclear phase meter

Abstract

This utility model belongs to the technical field of phase comparison equipment, and relates to a novel high-voltage phase comparison instrument. It includes a base with casters on both sides, a protective plate at the front end, side plates on both sides of the top, a vertical plate at the front end of the top, and a phase comparison column at the top. A contact is located at the bent end of the phase comparison column. A high-voltage fuse and a resistor are installed inside the phase comparison column. The contact connects the high-voltage fuse and the resistor. The rear end of the resistor is connected to a voltmeter via a test lead. The voltmeter is mounted on the outer wall of the vertical plate. This utility model automatically displays the phase comparison results on an instrument after the voltage is reduced at the test position by the built-in resistor, eliminating the need for manual operation and making it safer and more convenient.

Description

Technical Field

[0001] This utility model belongs to the technical field of phase comparison equipment, specifically relating to a new type of high-voltage phase comparison instrument. Background Technology

[0002] In power system operation and maintenance, high-voltage phase comparison is a crucial step in ensuring line phase consistency, directly impacting the safety and stability of grid loop closure. Traditional high-voltage phase comparators typically employ a handheld insulated rod structure, requiring operators to hold the insulated rod close to the comparator contacts near energized high-voltage lines, usually above 10kV, to perform phase detection.

[0003] Insulating rods may leak electricity due to prolonged use, moisture, or damage. If this leakage occurs while the operator is holding the rod, it can lead to electric shock, seriously threatening the operator's life. Therefore, a novel high-voltage phase comparator is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a new type of high-voltage phase comparator with a safe high-voltage phase comparator function, which solves the problem that the handheld operation of the existing technology is prone to electric shock to the operator, which seriously threatens the operator's life safety.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a novel high-voltage phase comparator, including a base, with movable wheels on the left and right sides of the base, a protective plate at the front end of the base, side plates on both sides of the top of the base, a vertical plate at the front end of the top of the base, and at least one phase comparator column at the top of the base. A phase comparator head is installed on the phase comparator column, with the axis of the phase comparator head perpendicular to the axis of the phase comparator column. The outer end of the phase comparator head is configured as a contact, and a high-voltage fuse and a resistor are installed inside the phase comparator head. The contact connects the high-voltage fuse and the resistor, and the rear end of the resistor is connected to a voltmeter through a test lead. The voltmeter is installed on the outer wall of the vertical plate.

[0006] Preferably, the number of nuclear phase columns is multiple and they are arranged at equal intervals in the horizontal direction. At least two nuclear phase heads are installed at equal intervals in the vertical direction on each nuclear phase column to form a multi-level detection structure.

[0007] Preferably, the phase core column and the phase core head are connected by an insulating sleeve, and a rotating connection mechanism is provided at the connection between the phase core head and the phase core column. The bottom of the phase core column is fixed to the top of the base.

[0008] Preferably, the resistor is a non-inductive wire-wound resistor with a resistance range of 200MΩ–500MΩ.

[0009] Preferably, the voltmeter is a dual-channel digital display voltmeter, and a transient suppression diode is connected in parallel at the input terminal of the voltmeter.

[0010] Preferably, the contact is a tungsten-copper alloy probe.

[0011] Preferably, the outer wall of the side plate is provided with a side guard plate.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. This utility model automatically displays the phase comparison results on the instrument after the voltage is reduced by the built-in resistor at the connection test position, which is safer and more convenient as it does not require manual handling;

[0014] 2. This utility model has a safe high-voltage phase-matching function, which solves the problem that the existing technology is prone to electric shock to operators when operated by hand, which seriously threatens the life safety of operators. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a novel high-voltage phase comparator according to one embodiment;

[0017] In the above diagram, 1. base, 2. protective plate, 3. side plate, 4. side protective plate, 5. upright plate, 6. phase column, 7. contact, 8. high voltage fuse, 9. resistor, 10. test lead, 11. voltmeter. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Example 1, as Figure 1As shown, a novel high-voltage phase comparator includes a base 1 with casters on both sides. The base 1 supports the entire device, and the casters enable flexible positioning, replacing manual handling. This allows the operator to safely move the device and avoids the risk of direct contact with high voltage due to aging insulation rods. A protective plate 2 is located at the front end of the base 1 to prevent accidental collisions. The protective plate 2 is made of an engineering plastic and metal composite structure, combining lightweight and impact resistance to reduce the risk of damage to the equipment in complex field environments.

[0021] The base 1 has side plates 3 on both sides of the top, and a vertical plate 5 at the front end of the top. The base 1 has at least one phase-reinforcing column 6 on the top. A phase-reinforcing head is installed on the phase-reinforcing column 6. The axis of the phase-reinforcing head is perpendicular to the axis of the phase-reinforcing column 6. The outer end of the phase-reinforcing head is set as a contact 7. The contact 7 contacts the high-voltage conductor to collect voltage signals. The phase-reinforcing column 6 supports the phase-reinforcing head and ensures insulation strength. The phase-reinforcing head carries the contact 7 and protective elements, which facilitates contact with the conductor.

[0022] The phase measurement head is internally equipped with a high-voltage fuse 8 and a resistor 9. The high-voltage fuse 8 is a core component for overcurrent protection, cutting off the circuit to prevent high voltage from entering the low-voltage side and damaging the instrument. The resistor 9 reduces the kilovolt-level high voltage to a safe voltage, ensuring the accuracy of phase measurement. The contact 7 connects the high-voltage fuse 8 and the resistor 9. The rear end of the resistor 9 is connected to the voltmeter 11 via a test lead 10. The test lead 10 transmits the safe voltage signal, after being stepped down by the resistor 9, to the voltmeter 11. The voltmeter 11 is installed on the outer wall of the vertical plate 5. The voltmeter 11 displays the phase difference and voltage value, directly reading the "in-phase / out-of-phase" result, avoiding human error.

[0023] The specific design of the aforementioned key components will be discussed in detail below:

[0024] The phase detection columns 6 are multiple and arranged horizontally at equal intervals. Each phase detection column 6 has at least two phase detection heads installed at equal intervals along the vertical direction, forming a multi-level detection structure. Three phase detection columns 6 are arranged horizontally at equal intervals, with each column carrying 2 to 3 phase detection heads, forming a detection matrix that can simultaneously detect three-phase lines: column 1 → phase A, column 2 → phase B, and column 3 → phase C, completing a redundancy design. Even in the event of a single column failure, phase detection can still be completed through other phase detection columns 6.

[0025] The phase nucleation column 6 and the phase nucleation head are connected by an insulating sleeve. A rotating connection mechanism is provided at the connection between the phase nucleation head and the phase nucleation column 6. The rotating connection mechanism is a connecting shaft + ceramic bearing, and the locking mechanism adopts a ratchet positioning to prevent loosening. The bottom of the phase nucleation column 6 is fixed to the top of the base 1.

[0026] The resistor 9 is a non-inductive wire-wound resistor 9, with a winding method of two wires in parallel, a resistance range of 200MΩ–500MΩ, and a packaging process of vacuum-encapsulated alumina ceramic tube.

[0027] The voltmeter 11 is a dual-channel digital display voltmeter 11. A transient suppression diode is connected in parallel at the input terminal of the voltmeter 11. The transient suppression diode is bidirectional clamping, and the preferred model is SMBJ15CA. The contact 7 is a tungsten copper alloy probe.

[0028] The outer wall of the side plate 3 is provided with a side guard plate 4. The rear end of the side guard plate 4 is provided with a spring buckle, and the front end is provided with a guide rail groove with a reserved M6 threaded hole for the installation of a laser positioner.

[0029] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A novel high-voltage phase comparator, comprising a base, with casters on both the left and right sides of the base, characterized in that, The base has a protective plate at the front end, side plates on both sides of the top of the base, and a vertical plate at the front end of the top of the base. At least one phase-reinforcing column is provided on the top of the base, and a phase-reinforcing head is installed on the phase-reinforcing column. The axis of the phase-reinforcing head is perpendicular to the axis of the phase-reinforcing column. The outer end of the phase-reinforcing head is set as a contact. A high-voltage fuse and a resistor are provided inside the phase-reinforcing head. The contact is connected to the high-voltage fuse and the resistor. The rear end of the resistor is connected to a voltmeter through a test lead. The voltmeter is set on the outer wall of the vertical plate.

2. The novel high-voltage phase comparator according to claim 1, characterized in that, The number of nuclear phase columns is multiple and they are arranged at equal intervals in the horizontal direction. At least two nuclear phase heads are installed at equal intervals in the vertical direction on each nuclear phase column to form a multi-level detection structure.

3. The novel high-voltage phase comparator according to claim 1, characterized in that, The phase core column and the phase core head are connected by an insulating sleeve. A rotating connection mechanism is provided at the connection between the phase core head and the phase core column. The bottom of the phase core column is fixed to the top of the base.

4. A novel high-voltage phase comparator according to claim 1, characterized in that, The resistor is a non-inductive wire-wound resistor with a resistance range of 200MΩ–500MΩ.

5. A novel high-voltage phase comparator according to claim 1, characterized in that, The voltmeter is a dual-channel digital display voltmeter, and a transient suppression diode is connected in parallel at the input terminal of the voltmeter.

6. A novel high-voltage phase comparator according to claim 1, characterized in that, The outer wall of the side panel is provided with a side guard plate.

7. A novel high-voltage phase comparator according to claim 1, characterized in that, The contact is a tungsten-copper alloy probe.

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