CN210982674U

CN210982674U - Residual current circuit breaker test equipment

Info

Publication number: CN210982674U
Application number: CN201921538783.3U
Authority: CN
Inventors: 王佑兵
Original assignee: Shanghai Lingyi Automation Equipment Co ltd
Current assignee: Shanghai Lingyi Automation Equipment Co ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-07-10
Anticipated expiration: 2029-09-17

Abstract

The utility model discloses a leakage circuit breaker testing device, which comprises a fixed bottom plate, a storage battery is fixedly arranged on the left side of the upper surface of the fixed bottom plate, a power supply negative terminal and a power supply positive terminal are respectively arranged on the left side and the right side of the upper part of the storage battery, the power supply positive terminal passes through a terminal a at one end of a wire connection switch, the switch is arranged on the upper surface of the fixed bottom plate, a terminal b at the other end of the switch is connected with a motor positive terminal through a wire, a transformer is fixedly arranged on the fixed bottom plate at the right side of the motor, the transformer consists of a silicon steel sheet group, a coil a and a coil b, a first terminal, a second terminal, a third terminal and a fourth terminal are led out above the transformer, a lamp holder is fixedly arranged on the fixed bottom plate at the right side of the transformer, an electric bulb is arranged, and the third wiring terminal is connected with the alligator clip b through a wire. The utility model discloses simple structure, the principle is understandable.

Description

Residual current circuit breaker test equipment

Technical Field

The utility model relates to a test equipment technical field specifically is a leakage circuit breaker test equipment.

Background

The leakage circuit breaker is a switching element which can automatically break off when the leakage current exceeds a preset value in a circuit, the common leakage circuit breaker is divided into a voltage type and a current type, the voltage type leakage circuit breaker is used for a low-voltage power grid with a transformer neutral point not grounded, when a person gets an electric shock, a higher voltage appears on the ground by a zero line, the action of a relay is caused, a power switch trips, and the structure and the principle of the existing equipment are complex. Accordingly, a person skilled in the art provides an electrical leakage breaker testing apparatus to solve the problems set forth in the above background art.

Disclosure of Invention

An object of the utility model is to provide a residual current circuit breaker test equipment to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a leakage circuit breaker testing device comprises a fixed bottom plate, a storage battery is fixedly arranged on the left side of the upper surface of the fixed bottom plate, a power supply negative terminal and a power supply positive terminal are respectively arranged on the left side and the right side above the storage battery, the power supply positive terminal passes through a terminal a at one end of a wire connection switch, the switch is arranged on the upper surface of the fixed bottom plate, a terminal b at the other end of the switch is connected with a motor positive terminal through a wire, a transformer is fixedly arranged on the fixed bottom plate on the right side of the motor and consists of a silicon steel sheet group, a coil a and a coil b, a first terminal, a second terminal, a third terminal and a fourth terminal are led out above the transformer, the motor negative terminal is connected with the second terminal through a wire, the power supply negative terminal is connected with the first terminal through a wire, a lamp holder is fixedly arranged on the fixed, no. four terminals pass through connection of electric lines lamp stand left end terminal c, and lamp stand right-hand member terminal d passes through the connection of electric lines alligator and presss from both sides a, and No. three terminals pass through the connection of electric lines alligator and press from both sides b.

In operation, press from both sides alligator clip a at earth leakage circuit breaker's positive terminal, alligator clip b presss from both sides at earth leakage circuit breaker's negative terminal, put through the motor through the electric wire in proper order, the transformer, the motor plays the inverter effect, change 12V direct current into 12V alternating current, the purpose of transformer is to rise the 12V alternating current to 220V, open the switch, the motor rotates, the bulb is luminous, press earth leakage circuit breaker's button, if earth leakage circuit breaker tripping operation, the bulb extinguishes earth leakage circuit breaker normal operating promptly, if earth leakage circuit breaker does not trip then earth leakage protector inefficacy.

As a further aspect of the present invention: and the output voltage of the storage battery is 12V.

In operation, a 12V lead storage battery supplies power to the entire circuit.

As a further aspect of the present invention: the rated voltage of the motor is 12V.

In operation, a motor with a rated voltage of 12V is selected, if the motor is too high in rated voltage and cannot rotate normally, the motor cannot function as an inverter, and if the motor is too low in rated voltage, the motor may be burnt out.

As a further aspect of the present invention: the turn ratio of the coil a to the coil b in the transformer is 1:26, two ends of the coil a are respectively connected with the first binding post and the second binding post, and two ends of the coil b are respectively connected with the third binding post and the fourth binding post.

The purpose of the transformer is to boost 12V AC to 220V, since

Therefore, the turn ratio of the coil a to the coil b is 1:26, and the boosting effect is realized through inductance.

As a further aspect of the present invention: the rated power of the electric bulb is 40W, and the rated voltage is 220V.

Compared with the prior art, the beneficial effects of the utility model are that:

1. by selecting a motor and designing a transformer, low-voltage direct current is converted into high-voltage alternating current by using a simple structure, and the leakage circuit breaker can be directly tested.

2. The device uses 12V low-voltage power, and is safer compared with 220V household power.

3. The equipment elements are widely used and can be directly bought, and the transformer can be wound according to the ratio and is simple to manufacture.

Drawings

Fig. 1 is a schematic structural diagram of an electrical leakage breaker testing device.

Fig. 2 is a schematic structural diagram of a transformer in the residual current circuit breaker testing device.

Fig. 3 is a schematic diagram of a residual current circuit breaker testing device.

In the figure: 1. fixing the bottom plate; 2. a battery cell; 3. a power supply negative terminal; 4. a power positive terminal; 5. a motor; 6. a transformer; 7. an electric bulb; 8. a lamp socket; 9. a crocodile clip a; 10. a crocodile clip b; 11. a switch; 12. silicon steel sheet group; 13. a first wiring terminal; 14. a second wiring terminal; 15. a third wiring terminal; 16. a fourth binding post; 17. a coil a; 18. and a coil b.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, in the embodiment of the present invention, a testing apparatus for a residual current circuit breaker includes a fixing base plate 1, a battery 2 is fixedly installed on the left side of the upper surface of the fixing base plate 1, a negative power terminal 3 and a positive power terminal 4 are respectively installed on the left and right sides of the upper surface of the battery 2, the positive power terminal 4 is connected to a terminal a at one end of a switch 11 through a wire, the switch 11 is installed on the upper surface of the fixing base plate 1, a terminal b at the other end of the switch 11 is connected to a positive terminal of a motor 5 through a wire, a transformer 6 is fixedly installed on the fixing base plate 1 at the right side of the motor 5, the transformer 6 is composed of a silicon steel sheet set 12, a coil a17 and a coil b18, a first terminal 13, a second terminal 14, a third terminal 15 and a fourth terminal 16 are led out from the upper side of the transformer 6, the negative, fixed mounting lamp stand 8 on 6 right side PMKD 1 of transformer, installation bulb 7 on the lamp stand 8, both ends are equipped with terminal c and terminal d respectively about lamp stand 8, and No. four terminal 16 passes through 8 left end terminal c of connection of electric lines lamp stand, and 8 right-hand member terminal d of lamp stand pass through the connection of electric lines alligator clip a9, and No. three terminal 15 passes through the connection of electric lines alligator clip b 10.

In operation, press from both sides alligator clip a9 at earth leakage circuit breaker's positive terminal, alligator clip b10 presss from both sides at earth leakage circuit breaker's negative terminal, switch on motor 5, transformer 6 in proper order through the electric wire, motor 5 plays the inverter effect, change 12V direct current into 12V alternating current, transformer 6's purpose is to rise the 12V alternating current to 220V, open switch 11, motor 5 rotates, bulb 7 is luminous, press earth leakage circuit breaker's button, if earth leakage circuit breaker tripping operation, bulb extinguishes and is earth leakage circuit breaker normal work, if earth leakage circuit breaker does not trip then earth leakage protector inefficacy.

And the output voltage of the storage battery 2 is 12V.

In operation, a 12V lead storage battery supplies power to the entire circuit.

The rated voltage of the motor 5 is 12V.

In operation, the motor 5 with a rated voltage of 12V is selected, and if the motor 5 with an excessively high rated voltage cannot normally rotate, the motor 5 cannot function as an inverter, and if the motor 5 with an excessively low rated voltage may be burned out.

The turn ratio of the coil a17 to the coil b18 in the transformer 6 is 1:26, two ends of the coil a17 are respectively connected with the first binding post 13 and the second binding post 14, and two ends of the coil b18 are respectively connected with the third binding post 15 and the fourth binding post 16.

The purpose of the transformer 6 is to boost the 12V AC to 220V, since

Therefore, the turn ratio of the coil a17 to the coil b18 is 1:26, and the boosting effect is realized through inductance.

The rated power of the electric bulb 7 is 40W, and the rated voltage is 220V.

The utility model discloses a theory of operation is: the crocodile clip a9 is clipped on a positive terminal of the leakage breaker, the crocodile clip b10 is clipped on a negative terminal of the leakage breaker, the motor 5 and the transformer 6 are sequentially connected through wires, the motor 5 plays the role of an inverter and converts 12V direct current into 12V alternating current, and the transformation is carried outThe purpose of the device 6 is to boost 12V AC to 220V, since

Therefore, the turn ratio of the coil a17 to the coil b18 is 1:26, the two ends of the end of the coil a17 are respectively connected with the first terminal 13 and the second terminal 14, the two ends of the end of the coil b18 are respectively connected with the third terminal 15 and the fourth terminal 16, and the electric bulb 7 is used as an electric appliance access circuit to prevent short circuit. Switch 11 connects at 2 positive poles of storage battery, opens switch 11, and motor 5 rotates, and bulb 7 is luminous, presses earth leakage circuit breaker's button, if earth leakage circuit breaker tripping operation, and the bulb extinguishes promptly earth leakage circuit breaker normal work, if earth leakage circuit breaker does not trip then earth leakage protector inefficacy.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a leakage circuit breaker test equipment, including PMKD (1), a serial communication port, PMKD (1) upper surface left is fixed has installed storage battery (2), be equipped with power negative terminal (3) and power positive terminal (4) about storage battery (2) top respectively, the terminal a of wire connection switch (11) one end is passed through in power positive terminal (4), and install in PMKD (1) upper surface switch (11), switch (11) other end terminal b passes through the forward terminal of connection of electric lines motor (5), fixed mounting transformer (6) are gone up in motor (5) right side PMKD (1), transformer (6) are by silicon steel sheet group (12), coil a (17), coil b (18) are constituteed, transformer (6) top has been drawn forth terminal (13), No. two terminal (14), No. three terminal (15), Terminal (16) No. four, motor (5) negative terminal passes through No. two terminals of connection by wire (14), power negative terminal (3) are through terminal (13) of connection by wire, fixed mounting lamp stand (8) are gone up in transformer (6) right side PMKD (1), installation bulb (7) are gone up in lamp stand (8), both ends are equipped with terminal c and terminal d respectively about lamp stand (8), No. four terminal (16) are through left end terminal post c of connection by wire lamp stand (8), lamp stand (8) right-hand member terminal d passes through the connection by wire alligator clip a (9), No. three terminal (15) are through connection by wire alligator clip b (10).

2. A residual current circuit breaker testing device according to claim 1, characterized in that the battery cell (2) outputs a lead accumulator with a voltage of 12V.

3. Residual current circuit breaker testing device according to claim 1, characterized in that the rated voltage of the electric motor (5) is 12V.

4. The residual current circuit breaker testing device according to claim 1, wherein the turn ratio of the coil a (17) to the coil b (18) inside the transformer (6) is 1:26, two ends of the coil a (17) are respectively connected with the first terminal (13) and the second terminal (14), and two ends of the coil b (18) are respectively connected with the third terminal (15) and the fourth terminal (16).

5. Residual current circuit breaker testing device according to claim 1, characterized in that said electric light bulb (7) is rated at 40W and rated at 220V.