Tool for measuring shaft voltage and shaft current of shaft of generator

Abstract

The utility model relates to the technical field of generator equipment, in particular to a shaft voltage and shaft current measuring tool of a generator. A section of bare copper wire is arranged in one end of the insulating rod, a lead terminal is led out of the rear end of the bare copper wire on the insulating rod, the front end of the bare copper wire is a contact surface in contact with a generator shaft, a measuring wire is connected between a digital multimeter and the lead terminal, and the digital multimeter is grounded. The tool is simple in structure and convenient to carry. Usage is safe and measurement is accurate. Cost is low and efficiency is high. The device is suitable for operation in narrow space and meets field operation requirements.

Description

TECHNICAL FIELD

[0001] The utility model relates to generator equipment technical field, namely the shaft voltage shaft current measuring tool of generator. BACKGROUND

[0002] In the operation process of large generator, shaft voltage and shaft current are important monitoring parameters. Excessive shaft voltage and shaft current can cause bearing damage, equipment failure and even shutdown, so it needs to be detected. There is no simple shaft voltage shaft current measuring tool of the same type generator in the market, and there is no finished product that can be purchased to meet this function. The previous such measuring equipment is cumbersome and inconvenient to carry. The measuring process is complex and needs professional operation. The price is too high. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at the above -mentioned insufficient and provides a shaft voltage shaft current measuring tool of generator simple structure, convenient to use.

[0004] The technical solution of the utility model is: a shaft voltage shaft current measuring tool of generator, it includes an insulating rod, the insulating rod one end built -in a section of bare copper wire, bare copper wire rear end draws out lead terminal on the insulating rod, bare copper wire front end is the contact surface that contacts with generator shaft, measuring line is connected between digital multimeter and lead terminal, digital multimeter has the ground.

[0005] The bare copper wire is composed of the end face contact plane of multiple bare copper wires.

[0006] The utility model has the advantages of: 1. the tool is simple in structure, convenient to carry. 2. safe, accurate. 3. low cost, high efficiency. 4. suitable for operation in narrow space, meet the needs of field operation.

[0007] The embodiments of the utility model will be described in further detail below with reference to the drawings. DRAWINGS

[0008] Figure 1 It is the structural diagram of the utility model. CONCRETE IMPLEMENTING METHOD

[0009] Referring to Figure 1 , the names of parts are as follows: insulating rod 1, bare copper wire 2, lead terminal 3, contact surface 4, measuring line 5, digital multimeter 6, generator shaft 7.

[0010] Referring to Figure 1A shaft voltage and current measuring tool of a generator, which comprises an insulating rod 1, a section of bare copper wire 2 being built in one end of the insulating rod 1, and the length of the bare copper wire 2 being one third of the length of the insulating rod 1. The rear end of the bare copper wire 2 is provided with a lead terminal 3 on the insulating rod 1, and the front end of the bare copper wire 2 is provided with a contact surface 4 for contacting the shaft 7 of the generator. The bare copper wire 2 is composed of a plurality of bare copper wires, and the contact surface 4 is provided with a contact plane. The measuring wire 5 is connected between the digital multimeter 6 and the lead terminal 3, and is made of rubber wire. The other terminal of the digital multimeter 6 is connected to the ground, thereby forming a loop for measurement.

[0011] Specifically,

[0012] (1) The insulating rod 1 is made of insulating material. The left end of the insulating rod 1 is held by a measurement personnel, and the measurement personnel wears insulating boots and gloves and stands on an insulating pad for measurement.

[0013] (2) The bare copper wire 2 is built in the insulating rod 1 and serves as a conductor for transmitting shaft voltage and current.

[0014] (3) The lead terminal 3 is used for leading out the shaft voltage and current in the bare copper wire 2 in the insulating rod 1 to the outside through the lead terminal 3, thereby playing a role of fastening the wire.

[0015] (4) The contact surface 4 is composed of a plurality of bare copper wires, and the contact surface 4 is provided with a contact plane. The contact surface 4 is more stable, reliable and safe in contact with the shaft 7 of the generator during measurement.

[0016] (5) The measuring wire 5 is made of rubber wire and is used for leading out the shaft voltage and current to the measuring meter.

[0017] The self-made shaft voltage and current measuring tool of the generator is safe, convenient, stable and reliable, and can eliminate safety hazards, shorten operation time, improve work efficiency, save manpower investment, reduce engineering cost, reduce the risk of on-site operation, and measure the shaft voltage and current of the generator in time.

[0018] (6) The digital multimeter 6 is selected according to the measurement requirement.

[0019] The above description is only a specific embodiment of the present application, and various examples do not limit the essential content of the present application.

Claims

1. A shaft voltage shaft current measurement tool for a generator characterized by It includes an insulating rod (1), one end of which is internally provided with a bare copper wire (2), the rear end of which is provided with a lead terminal (3) on the insulating rod (1), the front end of the bare copper wire (2) is a contact surface (4) for contacting a generator shaft (7), a measuring wire (5) is connected between a digital multimeter (6) and the lead terminal (3), and the digital multimeter (6) is provided with a ground.

2. A shaft voltage and current measuring tool for an electrical generator as defined in claim 1, characterized in that The bare copper wire (2) is composed of a plurality of bare copper wires and an end surface contact plane.

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