CN214278383U

CN214278383U - Leakage current test system

Info

Publication number: CN214278383U
Application number: CN202022739232.2U
Authority: CN
Inventors: 余锐; 郭小庆; 汪子霞; 邵凯良; 赵旗伟; 宋红志
Original assignee: Suzhou Epin Quality Technology Services Co ltd
Current assignee: Suzhou Epin Quality Technology Services Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-09-24
Anticipated expiration: 2030-11-24

Abstract

The utility model discloses a leakage current test system, its technical scheme is: the tester comprises a tester, wherein a tester power line is arranged at the input end of the tester, the tester power line is electrically connected with an input power supply, a test line is arranged at the output end of the tester, the test line is electrically connected with equipment to be tested, a power supply socket is arranged at the connecting end of the equipment to be tested, a power meter and a phase changer are arranged at the connecting end of the power supply socket, and a transformer module is also arranged at the connecting end of the power supply socket; the transformer module includes isolation transformer one, isolation transformer a connection end and power supply socket electric connection, the beneficial effects of the utility model are that: through the design of tester isotructure, make the utility model discloses to leakage current's measurement simpler, also fairly simple when the operation moreover, required time is less, has improved the efficiency to leakage current's measurement, convenient to use person's use.

Description

Leakage current test system

Technical Field

The utility model relates to a leakage current tests technical field, concretely relates to leakage current test system.

Background

The leakage current is very small current generated between a live wire and a zero line of the electric appliance when the electric appliance works normally, and is equivalent to static electricity of a common electric appliance, and a leakage current tester is used for mainly testing an L pole and an N pole of the electric appliance during testing.

The prior art has the following defects: when the leakage current detection device is used, the detection process is complicated, so that the time consumed by the leakage current during detection is long, and meanwhile, the leakage current of a patient with an F-shaped application part cannot be detected in the prior art.

Therefore, it is necessary to develop a leakage current testing system.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a leakage current test system, through the design of tester isotructure, makes the utility model discloses to leakage current's measurement simpler, also fairly simple when the operation moreover, required time is less, has improved the efficiency to leakage current's measurement, convenient to use person's use to solve the longer problem of time that leakage current consumes when detecting.

In order to achieve the above object, the present invention provides the following technical solutions: a leakage current test system comprises a tester, wherein a tester power line is arranged at the input end of the tester, the tester power line is electrically connected with an input power supply, a test line is arranged at the output end of the tester, the test line is electrically connected with equipment to be tested, a power supply socket is arranged at the connecting end of the equipment to be tested, a power meter and a phase changer are arranged at the connecting end of the power supply socket, and a transformer module is further arranged at the connecting end of the power supply socket;

the transformer module comprises a first isolation transformer, and a connection end of the first isolation transformer is electrically connected with the power supply socket.

Preferably, the transformer module comprises a second isolation transformer and a third isolation transformer, and the connection ends of the second isolation transformer and the third isolation transformer are electrically connected with the power supply socket.

Preferably, the tester front plate is provided with a mounting plate, and the mounting plate is provided with a stop switch, a start switch and a power switch.

Preferably, be equipped with the LED display on the tester front bezel, mounting panel one side is located to the LED display, LED display one side is equipped with a plurality of function keys.

Preferably, a fixing plate is arranged on a front plate of the tester and is arranged on one side of the LED display, a number key is arranged on the fixing plate, a function key is arranged at the bottom of the number key, a locking key, a clearing key, a canceling key and a confirmation key are respectively arranged on one side of the number key, a test indicating lamp, a test qualified indicating lamp and an alarm indicating lamp are sequentially arranged on one side of the locking key, and a test rod PL input end and a test rod PH input end are arranged at the bottom of the confirmation key.

Preferably, the tester back plate is provided with an MD analog impedance network box, and one side of the MD analog impedance network box is sequentially provided with a test power supply input, a test power supply output and a working power supply socket.

Preferably, the testing power supply input bottom is provided with an instant fuse seat, a communication port, an expansion port PLC input port, a PLC output port, a fuse seat and a grounding terminal.

The utility model has the advantages that:

1. the utility model has the advantages that through the design of the structure of the tester and the like, the measurement of the leakage current is simpler, the operation is simpler, the required time is less, the efficiency of the measurement of the leakage current is improved, and the use of a user is convenient;

2. the utility model discloses a design of two and three isolation transformer of isolation transformer can be to carrying out equipotential connection with two and three isolation transformer of isolation transformer for the detection to the patient leakage current of F type application part is more accurate and quick.

Drawings

Fig. 1 is a schematic structural diagram of a control system provided by the present invention;

fig. 2 is a schematic view of a front plate of the tester provided by the present invention;

fig. 3 is a schematic view of a rear plate of the tester provided by the present invention;

FIG. 4 is a network diagram of human body simulation provided by the present invention;

fig. 5 is a schematic structural diagram of a control system according to embodiment 2 of the present invention;

in the figure: 1 input power supply, 2 tester power lines, 3 transformer modules, 4 isolation transformer I, 5 testers, 6 test lines, 7 devices to be tested, 8 power supply sockets, 9 power meters, 10 phase changers, 11 isolation transformer II, 12 isolation transformer III, 13 stop switches, 14 start switches, 15 power switches, 16LED displays, 17 function keys, 18 number keys, 19 locking keys and 20 ongoing test indicator lamps, 21 test pass indicator light, 22 alarm indicator light, 23 clear key, 24 cancel key, 25 test bar PH input end, 26 test bar PL input end, 27 confirm key, 28 function key, 29MD analog impedance network box, 30 test power input, 31 test power output, 32 working power socket, 33 instant fuse holder, 34 communication port, 35 expansion port, 36PLC input port, 37PLC output port, 38 fuse holder and 39 grounding terminal.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Embodiment 1, referring to fig. 1-4, the utility model provides a leakage current test system, including tester 5, its characterized in that: the input end of the tester 5 is provided with a tester power line 2, the tester power line 2 is electrically connected with an input power supply 1, the output end of the tester 5 is provided with a test line 6, the test line 6 is electrically connected with a device 7 to be tested, the connecting end of the device 7 to be tested is provided with a power supply socket 8, the connecting end of the power supply socket 8 is provided with a power meter 9 and a phase changer 10, and the connecting end of the power supply socket 8 is also provided with a transformer module 3;

the transformer module 3 comprises a first isolation transformer 4, and the connection end of the first isolation transformer 4 is electrically connected with the power supply socket 8.

Further, the tester 5 front plate is provided with a mounting plate, and the mounting plate is provided with a stop switch 13, a start switch 14 and a power switch 15.

Further, be equipped with LED display 16 on the tester 5 front bezel, LED display 16 locates mounting panel one side, LED display 16 one side is equipped with a plurality of function keys 17.

Further, a fixing plate is arranged on a front plate of the tester 5, the fixing plate is arranged on one side of the LED display 16, a numeric key 18 is arranged on the fixing plate, a function key 28 is arranged at the bottom of the numeric key 18, a locking key 19, a clearing key 23, a cancel key 24 and an acknowledge key 27 are respectively arranged on one side of the numeric key 18, a test indicator light 20, a test qualified indicator light 21 and an alarm indicator light 22 are sequentially arranged on one side of the locking key 19, and a test rod PL input end 26 and a test rod PH input end 25 are arranged at the bottom of the acknowledge key 27.

Further, the tester 5 back plate is provided with an MD analog impedance network box 29, and one side of the MD analog impedance network box 29 is sequentially provided with a test power input 30, a test power output 31 and a working power socket 32.

Further, the bottom of the test power input 30 is provided with a quick-dissolving fuse holder 33, a communication port 34, an expansion port 35, a PLC input port 36, a PLC output port 37, a fuse holder 38 and a ground terminal 39.

The utility model discloses a use as follows: use the utility model discloses the time, through PH, PL test terminal internal connection be simulation human network MD integrated circuit board and measurement system, the measurement of leakage current is carried out at two epitaxial test cable connection equipment for awaiting measuring's both ends, can carry out the leakage current test according to the standard better, and the convenience is to live wire, zero line commutation operation, through the design of tester 5 isotructures, makes the utility model discloses to leakage current's measurement simpler, also fairly simple when the operation moreover, required time is less, has improved the efficiency to leakage current's measurement, convenient to use person's use.

Embodiment 2, refer to fig. 5, the utility model provides a pair of leakage current test system, transformer module 3 includes two 11 and three 12 isolation transformers of isolation transformer, two 11 and three 12 links of isolation transformer all with 8 electric connection of power supply socket.

The utility model discloses a use as follows: use the utility model discloses the time, to having F type application portion's patient leakage current, the external net electricity of introducing uses another independent isolation transformer to supply power, isolation transformer 1 carries out equipotential with isolation transformer 2 and connects, comes the supplementary measurement, through the design of isolation transformer two 11 and isolation transformer three 12, can carry out equipotential to two 11 and three 12 isolation transformers with isolation transformer, make the detection to F type application portion's patient leakage current more accurate and quick.

The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent replacements made according to the technical solution of the present invention belong to the scope of the claimed invention as far as possible.

Claims

1. A leakage current testing system comprising a tester (5), characterized in that: the tester comprises a tester body (5), a tester power line (2) and a transformer module (3), wherein the tester power line (2) is arranged at the input end of the tester body (5), the tester power line (2) is electrically connected with an input power supply (1), a test line (6) is arranged at the output end of the tester body (5), the test line (6) is electrically connected with a device to be tested (7), a power supply socket (8) is arranged at the connecting end of the device to be tested (7), a power meter (9) and a phase changer (10) are arranged at the connecting end of the power supply socket (8), and the transformer module (3) is further arranged at the connecting end of the power supply socket (8);

the transformer module (3) comprises a first isolation transformer (4), and the connecting end of the first isolation transformer (4) is electrically connected with the power supply socket (8).

2. A leakage current testing system according to claim 1, wherein: the transformer module (3) comprises a second isolation transformer (11) and a third isolation transformer (12), and the connection ends of the second isolation transformer (11) and the third isolation transformer (12) are electrically connected with the power supply socket (8).

3. A leakage current testing system according to claim 1, wherein: the tester (5) front panel is equipped with the mounting panel, be equipped with stop switch (13), starting switch (14) and switch (15) on the mounting panel.

4. A leakage current testing system according to claim 3, wherein: be equipped with LED display (16) on tester (5) front bezel, mounting panel one side is located in LED display (16), LED display (16) one side is equipped with a plurality of function keys (17).

5. A leakage current testing system according to claim 4, wherein: be equipped with the fixed plate on tester (5) front bezel, LED display (16) one side is located to the fixed plate, be equipped with numeric key (18) on the fixed plate, numeric key (18) bottom is equipped with function button (28), numeric key (18) one side is equipped with locking key (19), clear away key (23), cancel key (24) and enter key (27) respectively, locking key (19) one side is equipped with in proper order and is testing pilot lamp (20), test qualification pilot lamp (21) and warning pilot lamp (22), enter key (27) bottom is equipped with test bar PL input (26) and test bar PH input (25).

6. A leakage current testing system according to claim 1, wherein: the tester (5) back plate is provided with an MD (machine direction) analog impedance network box (29), and one side of the MD analog impedance network box (29) is sequentially provided with a test power supply input (30), a test power supply output (31) and a working power supply socket (32).

7. A leakage current testing system according to claim 6, wherein: the testing power supply input (30) bottom is equipped with fast dissolving fuse seat (33), communication port (34), expansion port (35) PLC input port (36), PLC delivery outlet (37), fuse seat (38) and ground terminal (39).