CN220584356U - Intelligent circuit breaker calibration device - Google Patents
Intelligent circuit breaker calibration device Download PDFInfo
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- CN220584356U CN220584356U CN202322351618.XU CN202322351618U CN220584356U CN 220584356 U CN220584356 U CN 220584356U CN 202322351618 U CN202322351618 U CN 202322351618U CN 220584356 U CN220584356 U CN 220584356U
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- circuit breaker
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- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 abstract description 4
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- 230000000007 visual effect Effects 0.000 description 2
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Abstract
The utility model relates to an intelligent circuit breaker checking device. The traditional checking device has simple current output, and three-phase current and voltage signal output which is not accurate and stable is not suitable for the production of intelligent circuit breakers. The three-phase standard electric energy meter comprises a shell, a touch industrial computer, a clamp, a circuit breaker, a three-phase standard power source and a three-phase standard electric energy meter, and is characterized in that the touch industrial computer, the clamp and the circuit breaker are arranged in the shell, the output of the three-phase standard power source is connected with the three-phase standard electric energy meter, the touch industrial computer is connected with the circuit breaker, the three-phase standard power source and the three-phase standard electric energy meter through RS485 communication, the touch industrial computer reads the measured value of the three-phase standard electric energy meter, and data are sent to the circuit breaker through RS485 communication to calibrate the measured value. The utility model can accurately calibrate the electric parameter measurement of the circuit breaker and meet the production debugging, calibration and detection requirements of intelligent circuit breakers such as metering type circuit breakers, measuring switches and the like.
Description
Technical Field
The utility model relates to the field of piezoelectric devices, in particular to an intelligent circuit breaker checking device.
Background
The plastic shell circuit breaker is used as a basic component of basic power transmission and transformation, and plays a very important role in ensuring safe and reasonable operation of a power distribution system and electrical equipment. The molded case circuit breaker can automatically cut off the current after the current exceeds the trip setting.
Along with the development of intelligent power grids and Internet of things in China, the requirements on the circuit breaker are also higher and higher. At present, the circuit breaker is developed towards an intelligent communication direction, has an electricity consumption parameter sensing function, and accurately measures three-phase current, voltage, power, electric energy and other electrical parameters.
The intelligent development of the circuit breaker brings higher requirements to the checking device in the production process of the circuit breaker, the traditional checking device only has simple current output, and three-phase current and voltage signal output which is not accurate and stable is not suitable for the production of the intelligent circuit breaker.
Disclosure of Invention
Aiming at the problems, the utility model provides the intelligent circuit breaker checking device which can accurately calibrate the electric parameter measurement of the circuit breaker and meet the production debugging, calibration and detection requirements of intelligent circuit breakers such as metering type circuit breakers and measuring switches.
The utility model adopts the following technical scheme: the utility model provides an intelligent circuit breaker verifying attachment, includes casing, touch industrial computer, anchor clamps, circuit breaker, three-phase standard power source, three-phase standard electric energy meter, its characterized in that touch industrial computer, anchor clamps and circuit breaker install inside the casing, the output and the three-phase standard electric energy meter of three-phase standard power source are connected, touch industrial computer and circuit breaker, three-phase standard power source, three-phase standard electric energy meter adopt RS485 communication to be connected, touch industrial computer reads three-phase standard electric energy meter measured value to send data for the circuit breaker through the RS485 communication and carry out the measured value calibration.
Preferably, the three-phase standard power source is a test signal source and comprises voltage terminals UA, UB and UC, current terminals IA+, IA-, IB+, IB-, IC+, IC-and an alternating current contactor KM1, wherein two ends of a main contact KM1_1 of the alternating current contactor KM1 are respectively connected with the current terminals IA+, IA-of the three-phase standard power source; two ends of the main contact KM1_2 are respectively connected with current terminals IB+ and IB-; the main contact KM 1-3 is connected at both ends to the current terminals ic+, IC-.
Preferably, the clamp is provided with main contacts K2 and K3, AN auxiliary contact K1 and a button AN, wherein the main contact K2 is connected with AN upper wiring pile of the circuit breaker, the main contact K3 is connected with a lower wiring pile of the circuit breaker, one end of the auxiliary contact K1 is connected with a zero line N, the other end of the auxiliary contact K1 is connected with one end of AN alternating current contactor KM1 coil, and the other end of the alternating current contactor KM1 coil is connected with a phase line L.
Preferably, the three-phase standard power source voltage terminals UA, UB and UC are respectively connected with the current terminals IA+, IB+ and IC+; the voltage terminal UA, UB, UC, N of the three-phase standard power source is connected with the voltage terminal UA, UB, UC, N of the three-phase standard electric energy meter, the current terminals IA+, IB+ and IC+ of the three-phase standard power source are connected with the current terminals IA+, IB+ and IC+ of the three-phase standard electric energy meter, and the current terminals IA-, IB-and IC-of the three-phase standard electric energy meter are respectively connected with the upper end of the main contact K2 of the clamp; the current terminals IA-, IB-, IC-of the three-phase standard power source are connected with the lower end of the main contact K3 of the clamp.
Preferably, the voltage and current output precision of the three-phase standard power source reaches 0.05%, and the three-phase standard electric energy meter can measure three-phase voltage, current and power parameters, and the measurement precision reaches 0.02%.
The utility model can accurately calibrate the electric parameter measurement of the circuit breaker and meet the production debugging, calibration and detection requirements of intelligent circuit breakers such as metering type circuit breakers, measuring switches and the like. The visual parameter display can be realized by touching the industrial computer, and the operation is simple and convenient. Through setting up alternating current contactor KM1, guaranteed the circuit breaker change in-process, three-phase standard power source is in the switch-on state all the time, has avoided open circuit warning.
Drawings
FIG. 1 is a schematic diagram of the present utility model.
Fig. 2 is an electrical schematic of the present utility model.
Detailed Description
The utility model will be further illustrated with reference to specific examples.
As shown in fig. 1, an intelligent circuit breaker calibration device comprises a casing 1, a touch industrial computer 2, a clamp 3, a circuit breaker 4, a three-phase standard power source 5 and a three-phase standard electric energy meter 6, and is characterized in that: the touch industrial computer 2, the clamp 3 and the circuit breaker 4 are arranged inside the shell 1, and the output of the three-phase standard power source 5 is connected with the three-phase standard electric energy meter 6.
As shown in fig. 2, the three-phase standard power source 5 is a test signal source, and the voltage and current output precision can reach 0.05%. Has voltage terminals UA, UB, UC, and current terminals IA+, IA-, IB+, IB-, IC+, IC-. The three-phase standard power source 5 is operated with current directions of IA + & gtIA-, IB + & gtIB-, IC + & gtIC-.
The three-phase standard electric energy meter 6 can measure three-phase voltage, current, power and other parameters, and the measurement accuracy can reach 0.02%. The three-phase standard electric energy meter 6 has three-phase voltage input terminals UA, UB, UC, and current terminals ia+, IA-, ib+, IB-, IC-. Current flows in from IA+, IB+, IC+, and out from IA-, IB-, IC-.
The voltage terminals UA, UB and UC of the three-phase standard power source 5 are respectively connected with the current terminals IA+, IB+ and IC+; the voltage terminal UA, UB, UC, N of the three-phase standard power source 5 is connected with the voltage terminal UA, UB, UC, N of the three-phase standard electric energy meter 6, the current terminals IA+, IB+, IC+ of the three-phase standard power source 5 are connected with the current terminals IA+, IB+, IC+ of the three-phase standard electric energy meter 6, and the current terminals IA-, IB-, IC-of the three-phase standard electric energy meter 6 are respectively connected with the upper end of the main contact K2 of the clamp 3; the current terminals IA-, IB-, IC-of the three-phase standard power source 5 are connected with the lower end of the main contact K3 of the clamp 3;
the clamp 3 is provided with main contacts K2 and K3, AN auxiliary contact K1 and a button AN, wherein the main contact K2 is connected with AN upper wiring pile of the circuit breaker, and the main contact K3 is connected with a lower wiring pile of the circuit breaker. When the button AN is pressed, the main contacts K2 and K3 are connected, and the output current of the three-phase standard power source 5 passes through the three-phase standard electric energy meter 6 from IA+, IB+ and IC+ and returns to IA-, IB-and IC-terminals through the main contacts K2 and K3 of the clamp 3 to form a loop. At this time, the three-phase standard electric energy meter 6 measures parameters such as three-phase current, voltage, power and the like in real time.
The touch industrial computer 2 is connected with the circuit breaker 4, the three-phase standard power source 5 and the three-phase standard electric energy meter 6 by adopting RS485 communication. The touch industrial computer 2 reads the measured value of the three-phase standard electric energy meter 6 and sends the data to the circuit breaker 4 for measuring value calibration through RS485 communication.
When the circuit breaker 4 is calibrated, another circuit breaker needs to be replaced for calibration. At this point the user opens the button AN of the clamp 3 to open the main contacts K2, K3 for replacing the circuit breaker. Since the three-phase standard power source 5 current loop cannot be opened or otherwise an alarm can be generated, the utility model also provides an alternating current contactor KM1 for solving the problem.
Two ends of a main contact KM1_1 of the alternating-current contactor KM1 are respectively connected with a current terminal IA+ and IA-of a three-phase standard power source 5; two ends of the main contact KM1_2 are respectively connected with current terminals IB+ and IB-; two ends of the main contact KM1_3 are respectively connected with a current terminal IC+ and IC-; one end of an auxiliary contact K1 of the clamp 3 is connected with a zero line N, the other end of the auxiliary contact K1 is connected with one end of an alternating current contactor KM1 coil, and the other end of the alternating current contactor KM1 coil is connected with a phase line L;
when the breaker is replaced, a button AN is disconnected, AN auxiliary contact K1 of a clamp 3 is connected, AN alternating current contactor KM1 is electrified, the alternating current contactor KM1 is attracted, and current terminals IA+, IA-, IB+, IB-, IC+ and IC-of a three-phase standard power source 5 are short-circuited by contacts KM1_1, KM1_2 and KM1_3 of the alternating current contactor KM 1; after a delay, the main contacts K2, K3 of the clamp 3 are opened and the user can replace the circuit breaker.
After the user changes the breaker, the button AN is turned on, at the moment, the main contacts K2 and K3 are firstly turned on, then the auxiliary contact K1 is turned off after a period of time, the alternating current contactor KM1 is powered off, the alternating current contactor KM1 is switched off, and the current terminals of the three-phase standard power source 5 are not shorted.
The three-phase standard power source 5 is always in the on state in the replacement process of the circuit breaker, and the open-circuit alarm is avoided.
The utility model adopts the three-phase standard power source and the three-phase standard electric energy meter to accurately calibrate the electric parameter measurement of the circuit breaker, the calibration precision can reach two ten thousandths, the production debugging, calibration and detection of the intelligent circuit breaker such as the metering circuit breaker, the measuring switch and the like can be satisfied, and simultaneously, the utility model adopts the touch industrial computer, thereby having the advantages of visual parameter display, simple operation and the like.
It is to be understood that these examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model. Further, it is understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the present utility model, and such equivalents are intended to fall within the scope of the claims appended hereto.
Claims (5)
1. The utility model provides an intelligent circuit breaker verifying attachment, includes casing (1), touch industrial computer (2), anchor clamps (3), circuit breaker (4), three-phase standard power source (5), three-phase standard electric energy meter (6), its characterized in that touch industrial computer, anchor clamps and circuit breaker install inside the casing, the output and the three-phase standard electric energy meter of three-phase standard power source are connected, touch industrial computer and circuit breaker, three-phase standard power source, three-phase standard electric energy meter adopt RS485 communication to be connected, touch industrial computer reads three-phase standard electric energy meter measured value to carry out the measured value calibration with data transmission for circuit breaker (4) through the RS485 communication.
2. The intelligent circuit breaker checking device according to claim 1, wherein the three-phase standard power source is a test signal source, and has voltage terminals UA, UB, UC, current terminals ia+, IA-, ib+, IB-, ic+, IC-, and ac contactor KM1, wherein the two ends of main contact KM1_1 of ac contactor KM1 are respectively connected with three-phase standard power source current terminals ia+, IA-; two ends of the main contact KM1_2 are respectively connected with current terminals IB+ and IB-; the main contact KM 1-3 is connected at both ends to the current terminals ic+, IC-.
3. The intelligent circuit breaker checking device according to claim 2, wherein the clamp comprises main contacts K2 and K3, AN auxiliary contact K1 and a button AN, the main contact K2 is connected with AN upper wiring pile of the circuit breaker, the main contact K3 is connected with a lower wiring pile of the circuit breaker, one end of the auxiliary contact K1 is connected with a zero line N, the other end is connected with one end of a coil of AN alternating current contactor KM1, and the other end of the coil of the alternating current contactor KM1 is connected with a phase line L.
4. An intelligent circuit breaker checking device according to claim 3, wherein the three-phase standard power source voltage terminals UA, UB, UC are respectively connected with the current terminals ia+, ib+, ic+; the voltage terminal UA, UB, UC, N of the three-phase standard power source is connected with the voltage terminal UA, UB, UC, N of the three-phase standard electric energy meter, the current terminals IA+, IB+ and IC+ of the three-phase standard power source are connected with the current terminals IA+, IB+ and IC+ of the three-phase standard electric energy meter, and the current terminals IA-, IB-and IC-of the three-phase standard electric energy meter are respectively connected with the upper end of the main contact K2 of the clamp; the current terminals IA-, IB-, IC-of the three-phase standard power source are connected with the lower end of the main contact K3 of the clamp.
5. The intelligent circuit breaker checking device according to claim 1 or 4, wherein the voltage and current output precision of the three-phase standard power source is up to 0.05%, and the three-phase standard electric energy meter can measure three-phase voltage, current and power parameters with the measurement precision up to 0.02%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322351618.XU CN220584356U (en) | 2023-08-30 | 2023-08-30 | Intelligent circuit breaker calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322351618.XU CN220584356U (en) | 2023-08-30 | 2023-08-30 | Intelligent circuit breaker calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220584356U true CN220584356U (en) | 2024-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322351618.XU Active CN220584356U (en) | 2023-08-30 | 2023-08-30 | Intelligent circuit breaker calibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220584356U (en) |
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2023
- 2023-08-30 CN CN202322351618.XU patent/CN220584356U/en active Active
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