CN209373054U

CN209373054U - Breaker detector

Info

Publication number: CN209373054U
Application number: CN201822007121.5U
Authority: CN
Inventors: 李刚
Original assignee: Shenzhen Tongyida Mechanical And Electrical Equipment Co Ltd
Current assignee: Shenzhen Tongyida Mechanical And Electrical Equipment Co Ltd
Priority date: 2018-11-30
Filing date: 2018-11-30
Publication date: 2019-09-10
Anticipated expiration: 2028-11-30

Abstract

The utility model discloses a kind of breaker detector, including AC power source, voltage regulating module, electric current gear setting module, current detection module, timing module；The output end of the AC power source is connect with the input terminal of the voltage regulating module, the voltage regulating module has cathode output end and inverse output terminal, for connecting controller switching equipment to be measured, the electric current gear setting module, the current detection module and the timing module are series between the cathode output end and inverse output terminal for the cathode output end and inverse output terminal；The electric current gear setting module, for setting the electric current gear for flowing through the controller switching equipment to be measured；The current detection module, for detecting the electric current for flowing through the controller switching equipment to be measured；The timing module, for detecting the operating time of the controller switching equipment to be measured under setting electric current gear.The utility model provides a kind of breaker detector that breaker detector is used for quickly detecting for low-voltage distribution apparatus.

Description

Breaker detector

Technical field

The utility model relates to detection device technical field, in particular to a kind of breaker detector.

Background technique

At present in industry centering high-voltage power distribution equipment protective relaying device by dedicated relay-protection tester carry out after Check test is protected, such equipment can effectively detect the protective relaying device of high-voltage power distribution equipment, but for low pressure The protective relaying device of controller switching equipment can not carry out effectively quickly detection.Mainly since high-voltage relay protective device is cabinet door peace What is filled is universal, and input signal is all made of the mode that electric wire connects with output feedback, so the detection of protective device can use market On relay protection check instrument detected, the mode to be combined together when low-voltage variation with Switch main body, so when detection, tradition The output signal of relay protection check instrument can not be connected by electrical wiring to low-voltage distribution apparatus, lead to not detect.

Utility model content

The main purpose of the utility model is to provide a kind of breaker detector, it is desirable to provide one kind is set for low-voltage distribution The standby breaker detector being used for quickly detecting.

To achieve the above object, the utility model proposes a kind of breaker detector, including AC power source, pressure regulation mould Block, electric current gear setting module, current detection module, timing module；

The output end of the AC power source is connect with the input terminal of the voltage regulating module, and the voltage regulating module has anode defeated Outlet and inverse output terminal, the cathode output end and inverse output terminal are for connecting controller switching equipment to be measured, the electric current gear Setting module, the current detection module and the timing module are series between the cathode output end and inverse output terminal；

The electric current gear setting module, for setting the electric current gear for flowing through the controller switching equipment to be measured；The electric current Detection module, for detecting the electric current for flowing through the controller switching equipment to be measured；

The timing module, for detecting the operating time of the controller switching equipment to be measured under setting electric current gear.

Preferably, the electric current gear setting module includes first resistor, the first relay, second resistance and third electricity Resistance；

The first end of the first resistor be the electric current gear setting module input terminal and with first relay First end connection, the first of the second end of first relay and the first end of the second resistance and the 3rd resistor End connection, the second end of the first resistor be the output end of the electric current gear setting module and with the second resistance the Two ends are connected with the second end of the 3rd resistor.

Preferably, the breaker detector further includes the second relay and third relay, the third relay packet Include first group of normally opened contact of third relay and second group of normally opened contact of third relay；

First group of normally opened contact of second relay and the third relay be parallel to the cathode output end and Between inverse output terminal；

The second group of normally opened contact and the controller switching equipment to be measured of the third relay are parallel to the cathode output end Between inverse output terminal.

Preferably, the breaker detector further includes power module, four times of buttons and four times of indicator lights, the power supply Module includes positive terminal and negative pole end, and first relay includes the control coil of the first relay；

Four times of buttons are series at the control coil of first relay and four times of indicator lights described respectively Between positive terminal and the negative pole end.

Preferably, the breaker detector further includes pre-set button, testing button, default indicator light and test instruction Lamp；

Second relay includes the control coil of the second relay and the normally opened contact of the second relay, and described second The control coil of relay is series at the positive terminal and the cathode with the testing button and the test indicator light respectively Between end, the normally opened contact of second relay and the testing button be parallel to the positive terminal and the negative pole end it Between；

The third relay further includes the control coil of third relay, the pre-set button respectively with the third after The control coil of electric appliance and the default indicator light are series between the positive terminal and the negative pole end.

Preferably, the breaker detector further includes the 4th relay and reset button, and the 4th relay includes The control coil of 4th relay and the normally-closed contact of the 4th relay；

The input terminal of the normally-closed contact of 4th relay is connect with the positive terminal, the pre-set button, the survey Between the output end and the negative pole end of the normally-closed contact that examination button and four times of buttons are parallel to the 4th relay；

The control coil of reset button and the 4th relay is series between the positive terminal and the negative pole end.

Preferably, the breaker detector further includes change-over switch, the output end of the current detection module with it is described The input terminal of change-over switch connects, and the output end of the change-over switch is connect with the input terminal of the controller switching equipment to be measured.

Preferably, the breaker detector further includes that the input connecting with the input terminal of the current detection module connects Mouth and the output interface connecting with the output end of the change-over switch, the input interface are two core interfaces, the output interface For seven core interfaces.

Preferably, the change-over switch is fourth gear change-over switch.

Preferably, the voltage regulating module is pressure regulator, and the pressure regulator is equipped with adjusting pressuring knob.

In technical solutions of the utility model, this breaker detector, which passes through, is arranged the electricity that voltage regulating module exports AC power source Pressure signal is adjusted and is exported by default size, which exports corresponding electric current after electric current gear setting module Signal is to controller switching equipment to be measured, and controller switching equipment to be measured initially enters test, and timing module starts timing, and is detecting wait be measured When electric equipment trips, controller switching equipment to be measured is obtained from the duration for starting test and being spent up to tripping process, together by timing module When, by the way that current detection module is arranged, the size of current of controller switching equipment to be measured is flowed through in real time inspection test process, therefore, originally Application technical solution can be verified effectively for the protection curve of low-voltage distribution apparatus, realize quickly detection.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.

Fig. 1 is the structural schematic diagram of one breaker detector of the utility model embodiment；

Fig. 2 is the circuit diagram of one breaker detector of the utility model embodiment；

Fig. 3 is the circuit diagram of the timing module in Fig. 2.

Drawing reference numeral explanation:

The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise Under every other embodiment obtained, fall within the protection scope of the utility model.

It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment It is only used for explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, such as When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.

In the present invention unless specifically defined or limited otherwise, term " connection ", " fixation " etc. should do broad sense reason Solution, for example, " fixation " may be a fixed connection, may be a detachable connection, or integral；It can be mechanical connection, it can also To be electrical connection；It can be directly connected, the connection inside two elements can also be can be indirectly connected through an intermediary Or the interaction relationship of two elements, unless otherwise restricted clearly.It for the ordinary skill in the art, can be with The concrete meaning of above-mentioned term in the present invention is understood as the case may be.

In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and cannot manage Solution is its relative importance of indication or suggestion or the quantity for implicitly indicating indicated technical characteristic.Define as a result, " the One ", the feature of " second " can explicitly or implicitly include at least one of the features.In addition, the skill between each embodiment Art scheme can be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when technical solution It will be understood that the combination of this technical solution is not present in conjunction with there is conflicting or cannot achieve when, also not in the utility model It is required that protection scope within.

The utility model proposes a kind of breaker detectors.

It please refers to Fig.1 to Fig.3, in an embodiment of the present invention, which includes AC power source, pressure regulation mould Block 12, electric current gear setting module 13, current detection module 14, timing module 15；

The output end of AC power source is connect with the input terminal of voltage regulating module 12, and voltage regulating module 12 is with cathode output end and instead To output end, cathode output end and inverse output terminal are for connecting controller switching equipment 20 to be measured, electric current gear setting module 13, electric current Detection module 14 and timing module 15 are series between cathode output end and inverse output terminal；

Electric current gear setting module 13, for setting the electric current gear for flowing through controller switching equipment 20 to be measured；Current detection module 14, for detecting the electric current for flowing through controller switching equipment 20 to be measured；

Timing module 15, for detecting the operating time of controller switching equipment 20 to be measured under setting electric current gear.In the present embodiment, Current detection module 14 can be ammeter, for showing current value；Timing module 15 can be various timers.

In the present embodiment, AC power source 220V, controller switching equipment 20 to be measured is breaker, is detected for breaker, Voltage regulating module 12 is pressure regulator, and pressure regulator is equipped with adjusting pressuring knob 121, and user can be carried out by the adjusting pressuring knob 121 on pressure regulator Voltage is effectively adjusted to the voltage value for being used to detect by pressure regulation.

Technical solutions of the utility model are big by presetting by the way that the voltage signal that voltage regulating module 12 exports AC power source is arranged Small to be adjusted and export, which exports corresponding current signal to wait be measured after electric current gear setting module 13 Electric equipment 20, controller switching equipment 20 to be measured initially enter test, and timing module 15 starts timing, and are detecting that distribution to be measured sets When standby 20 tripping, controller switching equipment 20 to be measured is obtained from the duration for starting test and being spent up to tripping process by timing module 15, Meanwhile the size of current of controller switching equipment 20 to be measured is flowed through by the way that current detection module 14 is arranged, in real time inspection test process, because This, technical scheme can be verified effectively for the protection curve of low-voltage distribution apparatus, realize quickly detection.

In one embodiment, electric current gear setting module 13 includes first resistor R1, the first relay K1, second resistance R2 and 3rd resistor R3；

The first end of first resistor R1 be electric current gear setting module 13 input terminal and with the first relay K1 first End connection, the second end of the first relay K1 are connect with the first end of the first end of second resistance R2 and 3rd resistor R3, and first The second end of resistance R1 be electric current gear setting module 13 output end and with the second end of second resistance R2 and 3rd resistor R3 Second end connection.

When the first relay K1 is disconnected, electric energy will play the role of adjusting electric current by first resistor R1, effectively be directed to Breaker is detected；

In this breaker detector checking process, breaker, which continues for some time, not to trip, and the first relay K1 is connected Logical, by the first relay K1 while electric energy passes through first resistor R1, electric energy also passes through second resistance R2 and 3rd resistor R3, High current effectively is adjusted out, so that circuit breaker trip, stops stopping electric current conduction while timing, detection is finished, then pressed Reset button SR4, timer reset zero, to detect next time.

In one embodiment, further, breaker detector further includes the second relay K2 and third relay K3, and Three relay K3 include first group of normally opened contact K31 of third relay and second group of normally opened contact K32 of third relay；

First group of normally opened contact K31 of the second relay K2 and third relay is parallel to cathode output end and reversed output Between end；

Second group of normally opened contact K32 of third relay and controller switching equipment 20 to be measured are parallel to cathode output end and reversed defeated Between outlet.

It should be understood that this breaker detector carries out detection behaviour by controlling the second relay K2 and third relay K3 Make；

When third relay first group of normally opened contact K31 and third relay second group of normally opened contact K32 close a floodgate, Third relay K3 is powered, and when the second relay K2 is disconnected, breaker will be short-circuited, be effectively pre-adjusted the size of voltage to Definite value；And in second group of normally opened contact K32 separating brake of first group of normally opened contact K31 of third relay and third relay, Three relay K3 are disconnected, and when the second relay K2 is powered, breaker normally starts detection and timing, the protection of breaker After unit takes off mouth, circuit breaker trip, feedback signal is input to book breaker detector, and power-off while stops timing, detects After press reset button SR4, timer reset zero is conducive to detect, improves detection accuracy.

In one embodiment, further, breaker detector further includes 11, four times of button SR1 and four of power module Times indicator light HR1, power module 11 include positive terminal and negative pole end, and the first relay K1 includes the control line of the first relay Circle；

Four times of button SR1 are series at positive terminal respectively and are born with the control coil of the first relay and four times of indicator light HR1 Between extreme.

Four times of button SR1 are self-holding button, it is possible to understand that, user controls the first relay by four times of button SR1 K1 is powered or disconnects, and is conducive to the size for adjusting electric current；Power module can be 24V, effective protection human-body safety；

When pressing four times of button SR1, the control coil of the first relay and four times of indicator light HR1 will turn on power module 11, the control coil of the first relay generates magnetic force and controls the first relay K1 combined floodgate, and four times of indicator light HR1 are lighted, effectively mentioned High current prompts four times of button SR1 of user to be used；

When unclamping four times of button SR1, the control coil of the first relay and four times of indicator light HR1 will be switched off electric energy, the The control coil magnetic force of one relay disappears, the first relay K1 separating brake, and four times of indicator light HR1 turn off the light, and effectively restores initial electricity Stream prompts four times of button SR1 of user to stop using, and realizes that operation is convenient.

Preferably, breaker detector further includes pre-set button SR3, testing button SR2, default indicator light HR3 and surveys Try indicator light HR2；

Second relay K2 includes the control coil of the second relay and the normally opened contact K21 of the second relay, second after The control coil of electric appliance respectively with testing button SR2 and test indicator light HR2 be series between positive terminal and negative pole end, second after The normally opened contact K21 and testing button SR2 of electric appliance are parallel between positive terminal and negative pole end；

Third relay K3 further includes the control coil of third relay, pre-set button SR3 respectively with third relay Control coil and default indicator light HR3 are series between positive terminal and negative pole end.

In the present embodiment, pre-set button SR3 is self-holding button, and testing button SR2 is inching button, it is possible to understand that, Before this breaker detector detects circuit breaker short circuit or overload, the first relay K1 separating brake, the second relay K2 separating brake, user Pre-set button SR3 is pressed, the control coil of third relay and default indicator light HR3 power on module 11, third relay Control coil generate magnetic force control third relay first group of normally opened contact K31 and third relay second group of normally opened touching Point K32 closes a floodgate, and default indicator light HR3 is lighted, so that circuit breaker short circuit, user can carry out pressure regulation by adjusting pressuring knob 121, has Effect is pre-adjusted specific voltage；

When having reconciled voltage and finishing, pre-set button SR3 is unclamped, so that the control coil magnetic force of third relay disappears, First group of normally opened contact K31 of third relay and second group of normally opened contact K32 of third relay preset separating brake simultaneously Indicator light HR3 turns off the light.

In the present embodiment, breaker detector is additionally provided with the 5th relay K5, and the 5th relay K5 includes the 5th relay Control coil, 15 low level signal input terminal of timing module；

In one embodiment, breaker includes main contact J1 and from contact J2, and the first end and positive terminal of main contact J1 connects It connects, the first end of the control coil of the 5th relay is connect with from contact J2, the control coil second end of the 5th relay and negative Extreme connection, the first end of the 5th relay K5 are connect with the first end of timing module 15, the second end of the 5th relay K5 and Inverse output terminal connection, wherein the 5th relay K5 and the and relay K2 are electrically connected to the low level signal input of timer End；

When breaker closing connection, circuit breaker trip or circuit power off, control main contact J1 is closed a floodgate with from contact J2 Or separating brake, the corresponding feedback signal of effective Feedback；Work as breaker closing, main contact J1 closes a floodgate with from contact J2, the 5th relay The control coil of device generates magnetic force and the 5th relay K5 is driven to close a floodgate, and when pressing testing button SR2, timer receives breaker The feedback signal connected of closing a floodgate will start timing, and effectively while breaker closing is connected, timer synchronization starts timing, and In circuit breaker trip, with from contact J2 separating brake, the 5th relay K5 separating brake, test terminates main contact J1.

When needing to carry out short-circuit test, killer switch closes a floodgate, and main contact J1 closes a floodgate with from contact J2, the 5th relay Control coil generate magnetic force drive the 5th relay K5 close a floodgate, the first relay K1 keep separating brake, the first of third relay Second group of normally opened contact K32 separating brake of group normally opened contact K31 and third relay, user press testing button SR2, the second relay The control coil of device generates the normally opened contact K21 closure that magnetic force drives the second relay, so that the second relay K2 of control is powered, Test indicator light HR2 is lighted, and breaker conducting carries out short-circuit detecting, and timer starts timing, effectively realizes that operation is convenient, Push-botton operation effectively reduces the quantity of control loop relay, reduces the fault point of switching, keeps equipment more durable；

Short-circuit finish test scenario one: the protection mechanism triggering of breaker, so as to cause circuit breaker trip, main contact J1 with From contact J2 separating brake, the magnetic force of the control coil of the 5th relay disappears, so that the 5th relay K5 separating brake, breaker detector Receiving the feedback signal of breaker, timing module 15 will stop timing, meanwhile, current detection module 14, which would indicate that, to be detected Current value may know that whether relay protection is effective according to current value, and user presses testing button SR2, the second relay again Control coil magnetic force disappear so that the normally opened contact K21 of the second relay is disconnected, thus control the second relay K2 disconnection, It tests indicator light HR2 to turn off the light, key resets.

Short-circuit finish test scenario two: breaker does not trip, and user presses testing button SR2 again, the second relay Control coil magnetic force disappears, so that the normally opened contact K21 of the second relay is disconnected, so that the second relay K2 of control is disconnected, surveys It tries indicator light HR2 to turn off the light, breaker power-off.

When needing to carry out overload measurement, four times of button SR1, the control coil of the first relay and four times of indicator lights are pressed HR1 will turn on power module 11, and the control coil of the first relay generates magnetic force and controls the first relay K1 combined floodgate, four times of instructions Lamp HR1 is lighted, and four times of button SR1 of user is prompted to be used, and then killer switch closes a floodgate, and main contact J1 is closed with from contact J2 Lock, the control coil of the 5th relay generate magnetic force and the 5th relay K5 are driven to close a floodgate, first group of normally opened touching of third relay Second group of normally opened contact K32 of point K31 and third relay keeps separating brake, and user presses testing button SR2, the second relay Control coil generates the normally opened contact K21 closure that magnetic force drives the second relay, so that the second relay K2 of control is powered, test Indicator light HR2 is lighted, and breaker conducting carries out the overload detection of high current, and timer starts timing, effectively realizes operation Convenient, push-botton operation effectively reduces the quantity of control loop relay, reduces the fault point of switching, keeps equipment more prolonged resistance to With.

When overload finish test scenario one, the protection mechanism triggering of breaker, so as to cause circuit breaker trip, breaker inspection The feedback signal that instrument receives breaker is surveyed, timing module 15 will stop timing, meanwhile, electric current

Detection module 14 would indicate that the current value detected, may know that whether relay protection is effective according to current value, Meanwhile user unclamps four times of button SR1, and the control coil of the first relay and four times of indicator light HR1 will be switched off electric energy, and first The control coil magnetic force of relay disappears, the first relay K1 separating brake, and four times of indicator light HR1 turn off the light, and presses testing button again The control coil magnetic force of SR2, the second relay disappear, so that the normally opened contact K21 of the second relay is disconnected, thus control second Relay K2 is disconnected, and test indicator light HR2 turns off the light, and key resets.

When overload finish test scenario two, breaker does not trip, and user unclamps four times of button SR1, the control of the first relay Coil processed and four times of indicator light HR1 will be switched off electric energy, and the control coil magnetic force of the first relay disappears, and the first relay K1 points Lock, four times of indicator light HR1 turn off the light, restore low current, press testing button SR2, the control coil magnetic force of the second relay again It disappears, so that the normally opened contact K21 of the second relay is disconnected, so that the second relay K2 of control is disconnected, tests indicator light HR2 It turns off the light, breaker power-off.

Preferably, breaker detector further includes the 4th relay K4 and reset button SR4, and the 4th relay K4 includes the The normally-closed contact K41 of the control coil of four relays and the 4th relay；

The input terminal of the normally-closed contact K41 of 4th relay is connect with positive terminal, pre-set button SR3, testing button SR2, And between the output end and negative pole end of four times of button SR1 normally-closed contact K41 for being parallel to the 4th relay；Reset button SR4 and The control coil of 4th relay is series between positive terminal and negative pole end.

In one embodiment, timing module 15 has the timer power supply 151 of connection power supply, and current detection module 14 has The electric current apparent source 141 of power supply is connected, timer power supply 151 and electric current apparent source 141 are parallel between positive terminal and negative pole end, Power module 11 is persistently powered to timer power supply 151 and electric current apparent source 141；Timing module 15 also has to be calculated for resetting The timer reset end of parameter, the 4th relay K4 are additionally provided with the 5th normally opened contact and are connected to timer reset end.

After short circuit or overload measurement, user presses reset button SR4, and the control coil of the 4th relay generates magnetic Power drives the normally-closed contact K41 separating brake of the 4th relay, so that pre-set button SR3, testing button SR2 and four times of button SR1 are disconnected Electricity, four times of indicator light HR1, test indicator light HR2 and default indicator light HR3 turn off the light；Also, the 5th normally opened contact closure, touching Timer reset calculating parameter is sent out, further, in the case that short-circuit test terminates, presses testing button SR2, key resets； In the case that overload measurement terminates, four times of button SR1 and testing button SR2 are pressed, key resets；When pressing reset button again When SR4, the magnetic force of the control coil of the 4th relay disappears, and the normally-closed contact K41 of the 4th relay closes a floodgate, so that pre-set button SR3, testing button SR2 and four times of button SR1 normal uses effectively start by reset button SR4 or close this breaker The control button function of detector.

In the present embodiment, timing module 15 also has the homing light 152 for prompting timers value to be zeroed, When breaker detector starts to check, electric energy passes through breaker and timer, and timer starts timing, and 152 points of homing light It is bright, when circuit breaker trip or after continue for some time after tripping, will examine

It measures breaker to need to verify protection curve, under 152 illuminating state of homing light, effectively prompts user It needs to press reset button SR4, the numerical value of timer is zeroed, to detect next time.

Preferably, breaker detector further includes change-over switch 16, the output end and change-over switch of current detection module 14 16 input terminal connection, the output end of change-over switch 16 are connect with the input terminal of controller switching equipment 20 to be measured.

In the present embodiment, change-over switch 16 is fourth gear change-over switch 16, and change-over switch 16 is used for A, B, C, N of breaker The current signal of four phases is shifted gears, and when user presses pre-set button SR3, user reverses change-over switch 16, so that switching is connected to One of tetra- phase of A, B, C, N of breaker effectively detects each phase protection of breaker.

In one embodiment, breaker detector further includes the input interface connecting with the input terminal of current detection module 14 101 and the output interface 102 that is connect with the output end of change-over switch 16, input interface 101 be two core interfaces, output interface 102 For seven core interfaces.

In the present embodiment, seven core interfaces, the guarantor of the other end insertion breaker of data line are inserted by one end of data line Unit interface is protected, two core interfaces are inserted by one end of feedback signal line, the other end of feedback signal line is inserted into the same of breaker Terminal next time in phase, realizes foolproof wiring, effectively prevent detection operator's wrong plug interface, leads to equipment damage.

The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model, It is all under the inventive concept of the utility model, equivalent structure made based on the specification and figures of the utility model becomes It changes, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.

Claims

1. a kind of breaker detector, which is characterized in that including AC power source, voltage regulating module, electric current position setting module, electric current inspection Survey module, timing module；

The output end of the AC power source is connect with the input terminal of the voltage regulating module, and the voltage regulating module has cathode output end And inverse output terminal, the cathode output end and inverse output terminal are for connecting controller switching equipment to be measured, the electric current gear setting Module, the current detection module and the timing module are series between the cathode output end and inverse output terminal；

The electric current gear setting module, for setting the electric current gear for flowing through the controller switching equipment to be measured；

The current detection module, for detecting the electric current for flowing through the controller switching equipment to be measured；

2. breaker detector as described in claim 1, which is characterized in that the electric current gear setting module includes the first electricity Resistance, the first relay, second resistance and 3rd resistor；

The first end of the first resistor be the input terminal of the electric current gear setting module and with first relay the The first end of one end connection, the second end of first relay and the first end of the second resistance and the 3rd resistor connects It connects, the second end of the first resistor is the output end of the electric current gear setting module and the second end with the second resistance It is connected with the second end of the 3rd resistor.

3. breaker detector as claimed in claim 2, which is characterized in that the breaker detector further includes the second relay Device and third relay, the third relay include third relay first group of normally opened contact and third relay second Group normally opened contact；

First group of normally opened contact of second relay and the third relay is parallel to the cathode output end and reversed Between output end；

Second group of normally opened contact of the third relay and the controller switching equipment to be measured are parallel to the cathode output end and instead To between output end.

4. breaker detector as claimed in claim 3, which is characterized in that the breaker detector further includes power supply mould Block, four times of buttons and four times of indicator lights, the power module include positive terminal and negative pole end, and first relay includes the The control coil of one relay；Four times of buttons control coil with first relay respectively；

Four times of buttons are series at the anode with the control coil of first relay and four times of indicator lights respectively Between end and the negative pole end.

5. breaker detector as claimed in claim 4, which is characterized in that the breaker detector further include it is default by Button, testing button, default indicator light and test indicator light；

Second relay includes the control coil of the second relay and the normally opened contact of the second relay, second relay The control coil of device be series at respectively with the testing button and the test indicator light positive terminal and the negative pole end it Between, the normally opened contact and the testing button of second relay are parallel between the positive terminal and the negative pole end；

The third relay further includes the control coil of third relay, the pre-set button respectively with the third relay Control coil and the default indicator light be series between the positive terminal and the negative pole end.

6. breaker detector as claimed in claim 5, which is characterized in that the breaker detector further includes the 4th relay Device and reset button, the 4th relay include the control coil of the 4th relay and the normally-closed contact of the 4th relay；

The input terminal of the normally-closed contact of 4th relay is connect with the positive terminal, and the pre-set button, the test are pressed Between the output end and the negative pole end of the normally-closed contact that button and four times of buttons are parallel to the 4th relay；

7. such as breaker detector described in any one of claims 1 to 6, which is characterized in that the breaker detector is also Including change-over switch, the output end of the current detection module is connect with the input terminal of the change-over switch, the change-over switch Output end connect with the input terminal of the controller switching equipment to be measured.

8. breaker detector as claimed in claim 7, which is characterized in that the breaker detector further includes and the electricity The input interface of the input terminal connection of stream detection module and the output interface being connect with the output end of the change-over switch, it is described Input interface is two core interfaces, and the output interface is seven core interfaces.

9. breaker detector as claimed in claim 7, which is characterized in that the change-over switch is fourth gear change-over switch.

10. such as breaker detector described in any one of claims 1 to 6, which is characterized in that the voltage regulating module is pressure regulation Device, the pressure regulator are equipped with adjusting pressuring knob.