CN218824453U - Simple detector for electric meter on site - Google Patents

Abstract

The utility model discloses a simple detector for an ammeter site, which comprises a shell; a mutual inductor, an ammeter, a voltmeter, a power meter, a load and a display are arranged in the shell; an electric heat insulation piece for insulating heat of each device in the shell is also arranged in the shell; a window for checking the ammeter data information displayed by the display is formed in the surface of the shell; the surface of the shell is also provided with a meter pen interface for detecting the electric meter to be detected; the meter pen interface is used for accessing a meter pen; the mutual inductor is connected with a to-be-tested electric meter through a meter pen interface, the load is connected with the mutual inductor, and the ampere meter, the voltmeter and the power meter are respectively used for measuring current, voltage and power on a load line. The utility model discloses can portable, easy and simple to handle, improve the detection efficiency that the electricity was stolen to the ammeter.

Description

Simple detector for electric meter on site

Technical Field

The utility model relates to an ammeter detection area, concretely relates to simple and easy detector of ammeter scene.

Background

At the present stage, electricity stealing users often adopt no electricity in the daytime and use electricity in the meter for electricity stealing at night, and when line loss management personnel check electricity stealing prevention in a transformer area, the electricity stealing users are not at home in the daytime because the electricity stealing electric meters do not have loads, and the electricity stealing users cannot judge whether the electricity meters are abnormal or not through electricity loads.

At present, aiming at electricity stealing through in-meter shunt, the existing electricity stealing detection mode generally adopts a bulb as an auxiliary load to check the electricity stealing behavior, and each electricity meter is externally hung with an incandescent lamp to check the electricity stealing users in a household-by-household meter checking mode. However, the detection mode has the problem that the external hanging load increases the carrying difficulty, so that the operation by a single person is inconvenient. Therefore, in order to solve the above problems, a simple detector for detecting electricity stealing of an electricity meter is needed.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at overcoming the defect among the prior art, provide the on-spot simple and easy detector of ammeter, can portable, easy and simple to handle, improved the detection efficiency that the electricity was stolen to the ammeter.

The utility model discloses a simple detector for ammeter site, which comprises a shell;

a mutual inductor, an ammeter, a voltmeter, a power meter, a load and a display are arranged in the shell; an electric heat insulation piece for insulating heat of each device in the shell is also arranged in the shell;

the surface of the shell is provided with a window for checking the ammeter data information displayed by the display; the surface of the shell is also provided with a meter pen interface for detecting the electric meter to be detected; the meter pen interface is used for accessing a meter pen;

the mutual inductor is connected with a to-be-tested electric meter through a meter pen interface, the load is connected with the mutual inductor, and the ampere meter, the voltmeter and the power meter are respectively used for measuring current, voltage and power on a load line.

Further, the shell is of a T-shaped structure.

Further, the mutual inductor adopts a core-through current mutual inductor.

Further, the load employs a heating element.

Further, the ammeter, the voltmeter and the wattmeter respectively adopt a digital ammeter, a digital voltmeter and a digital wattmeter.

Furthermore, the meter pen is made of a silica gel material.

Further, the surface of casing still is provided with power indicator.

The utility model has the advantages that: the utility model discloses a simple and easy detector of ammeter on-spot through the less load of built-in volume for the load is as an organic whole with the display instrument combination that shows electric current, voltage, power, has formed a convenient to carry and single simple and easy detector that can carry out ammeter electricity stealing detection operation. Compared with the existing external incandescent lamp meter calibration method, the portable electric meter is convenient to carry and simple and convenient to operate, and the detection efficiency of electricity stealing of the electric meter is improved.

Drawings

The invention will be further described with reference to the following figures and examples:

FIG. 1 is a schematic view of the internal structure of the present invention;

the device comprises a shell, a transformer, a power meter, a current meter, a voltmeter, a power meter, a load, a display and an electric heat insulation piece, wherein the shell is 1, the transformer is 2, the ammeter is 3, the voltmeter is 4, the power meter is 5, the load is 6, the display is 7, and the electric heat insulation piece is 8.

Detailed Description

The invention is further described below with reference to the accompanying drawings, as shown in the drawings:

the utility model discloses a simple detector for ammeter site, which comprises a shell 1; a mutual inductor 2, an ammeter 3, a voltmeter 4, a power meter 5, a load 6 and a display 7 are arranged in the shell 1; the shell 1 is also internally provided with an electric heat insulation piece 8 for insulating each device in the shell 1; by arranging the mutual inductor 2, the large current on the primary side is converted into the small current on the secondary side in an equal proportion, namely, the large current of the tested electric meter is converted into the small current, so that the detection of a detector is facilitated; meanwhile, the line isolation between the tested electric meter and the detector is realized, and the reliability and the stability of the detection of the detector are ensured; by arranging the electric heat insulation piece 8, each device in the detector is not influenced by heat dissipation of other devices, so that a stable working state is kept;

a window for checking the electric meter data information displayed by the display 7 is formed on the surface of the shell 1; the surface of the shell 1 is also provided with a meter pen interface for detecting a tested electric meter; the meter pen interface is used for accessing a meter pen; the display 7 is an existing electronic display device, and is not described herein again.

The mutual inductor 2 is connected with a to-be-tested electric meter through a meter pen interface, the load 6 is connected with the mutual inductor 2, and the ammeter 3, the voltmeter 4 and the power meter 5 are respectively used for measuring current, voltage and power on a line of the load 6. The ammeter 3, the voltmeter 4 and the wattmeter 5 are arranged at the same time to form comparison and calculation of detection data, so that the detection accuracy is improved. According to the existing meter internal shunt electricity stealing detection principle, the mutual inductor 2, the built-in load 6, the ammeter 3, the voltmeter 4 and the power meter 5 are connected through lines, and the details are not repeated; the detected electric meter data is sent to a controller or a singlechip after passing through preprocessing circuits such as filtering circuits, the controller or the singlechip analyzes and calculates the electric meter data, outputs processed current values, voltage values and power values and finally sends the processed current values, voltage values and power values to a display 7 for displaying.

In this embodiment, the housing 1 has a T-shaped structure. In the detection process by using the detector, the T-shaped shell 1 can be held by one hand; through the structure, the detector is tightly held by a single hand, the use is convenient and fast, and the electricity stealing detection efficiency of the electric meter is improved.

In this embodiment, the transformer 2 is a feedthrough current transformer. Through adopting the core-through current transformer, the wiring is simple, and the installation and the arrangement are convenient.

In this embodiment, the load 6 is a heating element. The heating element can adopt a small heating load 6, compared with the existing externally hung bulb as the load 6, the heating element can be conveniently arranged in the detector, in addition, the stability of the heating element is good, and the bulb is easy to break.

In this embodiment, the ammeter 3, the voltmeter 4, and the wattmeter 5 respectively adopt a digital ammeter, a digital voltmeter, and a digital wattmeter. Through the arrangement, the digital electric meter is more visual in display and higher in metering accuracy. The ammeter 3, the voltmeter 4 and the power meter 5 which have proper sizes and panel opening sizes can be selected to be arranged inside the detector according to the size of the detector.

In this embodiment, the meter pen is made of a silica gel material. According to the requirement that a circuit is required to form a loop, two meter pens are naturally adopted, namely a red meter pen and a black meter pen, and each meter pen occupies a meter pen interface; by adopting the silica gel material, the lead of the meter pen can be effectively prevented from being hardened in winter, so that the meter pen can better adapt to a harsh detection environment, and the service life of the meter pen is prolonged.

In this embodiment, the electric insulating element 8 may be a conventional insulating material, such as rock wool, glass fiber, and rock wool, or a novel insulating material, such as a vacuum panel and an aerogel felt; in particular, the type of insulation material and the low consumption may be selected according to the actual conditions.

In this embodiment, a power indicator is further disposed on the surface of the housing 1. The power indicator is used for displaying the power-on detection state of the detector; if the power indicator lamp is lightened, the power indicator lamp indicates that the detector is electrified and is in a detection state, and if the power indicator lamp is lightened, the power indicator lamp indicates that the detector is not electrified and is not in the detection state. Through above-mentioned structure, can in time know and make clear the detection state of detector. The power indicator lamp adopts the existing circuit device and the existing light-emitting device, and is not described in detail herein.

In order to understand better the utility model discloses, now utilize the utility model discloses the detection that divides the electricity stealing scene in the pair table is further explained as follows:

the display 7 displays the current value, the voltage value and the power value after the calculation processing; and judging whether the ammeter is abnormal or not by comparing the current value with the current value displayed on the tested ammeter. For example, if the current value is obviously larger than the current value displayed by the ammeter, an internal shunt electricity stealing behavior exists; if the current value is obviously similar to or equal to the current value displayed by the electric meter, no internal shunt electricity stealing behavior exists. Similarly, the similar comparison can be performed through the voltage value or the power value, and is not described herein again.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims (7)

1. The utility model provides an on-spot simple and easy detector of ammeter which characterized in that: comprises a shell;

a mutual inductor, an ammeter, a voltmeter, a power meter, a load and a display are arranged in the shell; an electric heat insulation piece for insulating heat of each device in the shell is also arranged in the shell;

a window for checking the ammeter data information displayed by the display is formed in the surface of the shell; the surface of the shell is also provided with a meter pen interface for detecting the electric meter to be detected; the meter pen interface is used for accessing a meter pen;

the transformer is connected with the to-be-tested electric meter through the meter pen interface, the load is connected with the transformer, and the ammeter, the voltmeter and the power meter are respectively used for measuring current, voltage and power on a load circuit.

2. The simple meter field detector of claim 1, wherein: the shell is of a T-shaped structure.

3. The simple meter site detector of claim 1, wherein: the mutual inductor adopts a core-through current mutual inductor.

4. The simple meter site detector of claim 1, wherein: the load adopts a heating element.

5. The simple meter site detector of claim 1, wherein: the ammeter, the voltmeter and the wattmeter respectively adopt a digital ammeter, a digital voltmeter and a digital wattmeter.

6. The simple meter site detector of claim 1, wherein: the meter pen is made of a silica gel material.

7. The simple meter site detector of claim 1, wherein: the surface of the shell is also provided with a power indicator lamp.

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