CN104749455B - A kind of circuit or Electrical Testing, monitoring device - Google Patents
A kind of circuit or Electrical Testing, monitoring device Download PDFInfo
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- CN104749455B CN104749455B CN201310745387.9A CN201310745387A CN104749455B CN 104749455 B CN104749455 B CN 104749455B CN 201310745387 A CN201310745387 A CN 201310745387A CN 104749455 B CN104749455 B CN 104749455B
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Abstract
The present invention is a kind of circuit or Electrical Testing, monitoring device, including：Phase line detects circuit manually, power circuit, the ground wire grounded resistance of equipment and leakage switch detection circuit, ground wire detects circuit manually, ground wire automatic detection/observation circuit, zero line detects circuit manually, zero line automatic detection/observation circuit and warning circuit, described power circuit is powered for whole device, and then circuit is detected by the ground wire grounded resistance of equipment and leakage switch, ground wire automatic detection or observation circuit and zero line automatic detection or observation circuit are detected and monitored to the electrical equipment used in residing power circuit and the circuit, when power supply environment or abnormal power utilization environment, send sound, people are by power-off or avoid contact with equipment for warning, warning circuit meeting alert, belong to the field of electrical application technology.Purpose is to provide a form by alarm and reaches warning people by power-off or avoid contact with equipment effect.
Description
Technical field
The present invention relates to one kind detection or monitoring device, particularly a kind of circuit or Electrical Testing, monitoring device.
Background technology
Along with developing rapidly for industry, constantly occur new electronic equipment in all trades and professions, and its corresponding electronics
Detection device or detecting instrument are to need professional to be maintained and use mostly, but one among practical work
As attendant mostly simply be periodically maintained, it is generally the case that be typically all some users either make temporarily
User does shirtsleeve operation to it, especially relates to the equipment in production line water operation inside some factories, its valency
Lattice be mostly costly, once because power on production line environment or power utilization environment are abnormal, be likely to that equipment paralysis can be caused
Paralysis or thoroughly scrap.
Furthermore, for some general small companies, engage the use of some professional maintenance electrician's service companies
Electric equipment and its circuit are also and unrealistic, and power supply environment once occur or power utilization environment is abnormal, and cause company local or
Whole office equipment instruments are paralysed or scrap or even involve Zheng Dong mansions.
It is specifically in all parts of the country annual because power supply environment and power utilization environment are lack of standardization, cause human electric shock, fire incident
Emerged in an endless stream with the phenomenon such as device damage.To avoid similar accident, people it must be understood that detecting and monitoring itself residing ring
Whether the power supply environment and power utilization environment in border are safe.
The content of the invention
The purpose of the present invention is to be to solve power supply environment and power utilization environment of the non-professional electrician personnel to residing circuit
Whether normal a kind of simple and convenient detection and monitoring, and provide a kind of circuit or Electrical Testing, monitoring device.
The present invention to achieve these goals and the technical scheme that uses for：A kind of circuit or Electrical Testing, monitoring device,
Described device includes：
Power circuit：Normally opened contact including power supply phase line plug XPL1, fuse FU1 and linkage key switch SB1
SB1-1, zero-power line plug XPN1, zero line checkout button SBTN and linkage key switch SB1 normally opened contact SB1-2, respectively
It is connected to linkage key switch SB1 normally opened contacts SB1-1 and SB1-2 voltmeter PV and transformer TR, rectifier stack UR, power supply
Ground wire plug XPPE1, ground wire checkout button SBTPE and linkage key switch SB2 normally opened contact SB2-2, friendship is provided for device
Stream or DC loop power supply.
The ground wire grounded resistance of equipment and leakage switch detection circuit：It is including power circuit and defeated with power circuit transformer TR
Enter end relay K1 coils in parallel, be connected in series with power circuit rectifier stack UR positive poles and test socket XS2 between hole
Fuse FU2, relay K2 coils, relay K1 normally opened contact K1-1, DC ammeter PA1, linkage key switch SB2
Normally-closed contact SB2-1.Another branch road：Linkage button is connected in series between DC ammeter PA1 and power ground plug XPPE1
Switch SB2 normally opened contact SB2-2, ground wire checkout button SBTPE.Power circuit rectifier stack UR negative poles difference connecting detection is inserted
Seat XS2 left hole, right hole and detection line socket XS1, detection line plug XP1, detection harness clip JZ.It is connected in parallel on relay K1 coils
Two ends are connected with relay K2 normally opened contacts K2-1, dimmer switch TG, electrical appliance E, alternating current ammeter PA2 and linkage key switch
SB3 normally-closed contact SB3-1.Another branch road：Connection is connected in series between alternating current ammeter PA2 and power ground plug XPPE1
Dynamic key switch SB3 normally opened contact SB3-2, linkage key switch SB2 normally opened contact SB2-3, ground wire is picked up and tests button
SBTPE.Specifically：The ground wire grounded resistance of equipment and leakage switch detection circuit：Include detection electricity inside device again respectively
Road, equipment detection circuit, ground wire grounded resistance detecting circuit and leakage switch four kinds of circuit of detection, wherein：
Device internal detection circuitry：Including power circuit and the relay K1 in parallel with power circuit transformer TR inputs
On coil, power circuit rectifier stack UR positive poles and test socket XS2 fuse FU2, relay K2 are connected in series between hole
Coil, relay K1 normally opened contact K1-1, DC ammeter PA1, linkage key switch SB2 normally-closed contacts SB2-1.Power supply electricity
Detection line socket XS1, detection line plug XP1 are connected in series between road rectifier stack UR negative poles and detection harness clip ZJ；It is in parallel
Relay K2 normally opened contacts K2-1, dimmer switch TG, electrical appliance E, alternating current ammeter PA2 are connected with relay K1 coils two ends
And linkage key switch SB3 normally-closed contact SB3-1；
Equipment detects circuit：Including power circuit and the relay K1 coil in parallel with power circuit transformer TR inputs
, fuse FU2, relay K2 lines are connected in series between hole on power circuit rectifier stack UR positive poles and test socket XS2
Circle, relay K1 normally opened contact K1-1, DC ammeter PA1, linkage key switch SB2 normally-closed contacts SB2-1.Power circuit
Rectifier stack UR negative poles distinguish connecting detection socket XS2 left hole, right hole and connecting detection line socket XS1, detection line plug
XP1, detection harness clip JZ；
Ground wire grounded resistance detecting circuit：Including power circuit and the relay in parallel with power circuit transformer TR inputs
Device K1 coils, be connected in series between power circuit rectifier stack UR positive poles and power ground plug XPPE1 fuse FU2,
Relay K2 coils, relay K1 normally opened contact K1-1, DC ammeter PA1, linkage key switch SB2 normally opened contacts SB2-
2nd, ground wire checkout button SBTPE.Detection line is connected in series between power circuit rectifier stack UR negative poles and detection harness clip JZ
Socket XS1, detection line plug XP1；
Leakage switch detects circuit：Including power circuit and the relay K1 in parallel with power circuit transformer TR inputs
Coil, fuse FU2, relay are connected in series between power circuit rectifier stack UR positive poles and power ground plug XPPE1
Device K2 coils, relay K1 normally opened contact K1-1, DC ammeter PA1, linkage key switch SB2 normally opened contacts SB2-2,
X -ray inspection X button SBTPE.Detection line socket is connected in series between power circuit rectifier stack UR negative poles and detection harness clip JZ
XS1, detection line plug XP1；It is connected in series between linkage key switch SB1 normally opened contacts SB1-1 and power ground plug XPPE1
There are relay K2 normally opened contacts K2-1, dimmer switch TG, electric E, alternating current ammeter PA2, linkage key switch SB3 normally opened contacts
SB3-2, linkage key switch SB2 normally opened contacts SB2-3, ground wire checkout button SBTPE.
Ground wire automatic detection/observation circuit：Power supply phase line plug XPL1, fuse FU1 pass through sensing device GY2 connecting resistances
R9, resistance the R9 other end connect respectively ground wire checkout button SBTPE, power ground plug XPPE1 and with grounding wafer PEJ
Between be serially connected with resistance R5, resistance R6 and LED 5；
Zero line automatic detection/observation circuit：Power supply phase line plug XPL1, fuse FU1 pass through sensing device GY1 connecting resistances
R8, resistance the R8 other end connect zero line checkout button SBTN, zero-power line plug XPN1 and between grounding wafer NJ respectively
It is serially connected with resistance R3, resistance R4 and LED 4；
Warning circuit：Include the photo resistance RL1 of the control of LED 4 by zero line automatic detection/observation circuit
With the photo resistance RL2 of the control of LED 5 by ground wire automatic detection/observation circuit, and by photo resistance RL1
With photo resistance RL2 warning circuit, the warning circuit also includes：The main control chip OTP20-08 and external changed for signal
Sound-controlled apparatus, described external sound-controlled apparatus uses loudspeaker in this programme, and display is also provided with certainly, will report
Alert information is shown by display, while the warning circuit is from provided with fixed independent current source；Furthermore in main control chip
Provided with the resistance R1 and electric capacity C1 being connected in parallel at OTP20-08 signal input part PIN1；Simultaneously in main control chip OTP20-08
Signal input part PIN2 at provided with the resistance R2 and electric capacity C2 that are connected in parallel；And in main control chip OTP20-08 output end
Electric capacity C3 is provided between PIN5 and PIN7, electric capacity C3 two ends are connected with input and the output of the power supply of warning circuit simultaneously
End, is provided with loudspeaker B between PIN6 and PIN8.
Further, it is additionally provided with phase line and detects circuit manually, described phase line detects circuit by grounding wafer LP, resistance manually
R7 and LED 1 are constituted, and resistance R7 and light-emitting diodes are serially connected between power supply phase line plug XPL1 and grounding wafer LP
Pipe LED1.
Further, it is additionally provided with ground wire and detects circuit manually, described ground wire detects circuit by grounding wafer PEP, electricity manually
Resistance R11 and LED 3 are constituted, and resistance R11 and light emitting diode are serially connected between resistance R9 and grounding wafer PEP
LED3。
Further, it is additionally provided with zero line and detects circuit manually, described zero line detects circuit by grounding wafer NP, resistance manually
R10 and LED 2 are constituted, and resistance R10 and LED 2 are serially connected between resistance R8 and grounding wafer NP.
Further, described power supply phase line plug XPL1 and circuit connecting end（Place）Provided with fuse FU1.
Further, being provided between described resistance R5 and ground wire plug XPPE1 is used to disconnect ground wire automatic detection/monitoring electricity
The ground wire checkout button SBTPE on road.
Further, being provided between described resistance R3 and zero line plug XPN1 is used to disconnect zero line automatic detection/monitoring electricity
The zero line checkout button SBTN on road.
Further, the LED 4 of the zero line automatic detection/observation circuit with by the LED 4
The photo resistance RL1 of control is packaged as a whole.
Further, the LED 5 of the ground wire automatic detection/observation circuit with by the LED 5
The photo resistance RL2 of control is packaged as a whole.
It is using the beneficial effect of above-mentioned technical proposal：First, the device described in this programme be applied to 380V/220 and
Following power supply environment and power utilization environment（Factory, hotel, restaurant, office building, public place, residential quarter etc.）, can be timely
Accurate quick plays detection to the power utilization environment residing for electrical equipment or instrument and monitoring is acted on, when power supply environment or electricity consumption ring
When border occurs abnormal, and by the form of audio alert, people are by power-off or avoid contact with equipment for warning, and behaviour is reminded in time
Make personnel or user, and then comprehensive detection can be played to residing partial electric grid and electrical equipment and monitoring is made
With.
Brief description of the drawings
Fig. 1 is the theory diagram of patent of the present invention；
Fig. 2 is the circuit diagram of patent of the present invention.
Embodiment
Present disclosure is further described below in conjunction with accompanying drawing and currently preferred specific embodiment.Lifted
Embodiment is served only for explaining the present invention, is not intended to limit the scope of the present invention.
As shown in Fig. 1 to Fig. 2, the present invention includes：Phase line detects the ground wire grounded electricity of circuit, power circuit, equipment manually
Resistance and leakage switch detection circuit, zero line detect manually circuit, zero line automatic detection/observation circuit, ground wire detect manually circuit,
Ground wire automatic detection/observation circuit and warning circuit：
Described power circuit：Including power supply phase line plug XPL1, fuse FU1 and the normally opened of key switch SB1 of linking
Contact SB1-1, zero-power line plug XPN1, zero line checkout button SBTN and linkage key switch SB1 normally opened contact SB1-2,
Linkage key switch SB1 normally opened contacts SB1-1 and SB1-2 voltmeter PV and transformer TR, rectifier stack UR are connected to,
Power ground plug XPPE1, ground wire checkout button SBTPE and linkage key switch SB2 normally opened contact SB2-2, are that device is carried
For AC or DC ring current.Described transformer TR uses 220V/12V there is provided 12V voltages to whole in this programme
Component UR is flowed, the device predominantly described in this programme provides dc source.
The ground wire grounded resistance of described equipment and leakage switch detection circuit, include device internal detection circuitry, equipment again
Detect circuit, ground wire grounded resistance detecting circuit and leakage switch four kinds of circuit of detection.Wherein：
Device internal detection circuitry：Including power circuit and the relay K1 in parallel with power circuit transformer TR inputs
On coil, power circuit rectifier stack UR positive poles and test socket XS2 fuse FU2, relay K2 are connected in series between hole
Coil, relay K1 normally opened contact K1-1, DC ammeter PA1, linkage key switch SB2 normally-closed contacts SB2-1.Power supply electricity
Detection line socket XS1, detection line plug XP1 are connected in series between road rectifier stack UR negative poles and detection harness clip ZJ；It is in parallel
Relay K2 normally opened contacts K2-1, dimmer switch TG, electrical appliance E, alternating current ammeter PA2 are connected with relay K1 coils two ends
And linkage key switch SB3 normally-closed contact SB3-1.
Above-mentioned device internal detection circuitry is mainly for detection of relay K2 coils DC current and for detecting electrical equipment E
Alternating current.
Concrete operation step and operation principle：Installation's power source plug is inserted in normal power outlet, line plug is examined
XP1 insertions examine line socket XS1, examine harness clip ZJ to clamp hole on inspection socket XS2, press linkage key switch SB1, linkage
Key switch SB1 normally opened contacts SB1-1, SB1-2 are connected, and installation's power source is connected, relay K1 coil energized actions, relay K1
Normally opened contact K1-1 is closed, and relay K2 wire loops are connected, the positive best fuse FU2 of power circuit rectifier stack UR, relay
Device K2 coils, relay K1 normally opened contact K1-1, DC ammeter PA1, linkage key switch SB2 normally-closed contacts SB2-1, inspection
Survey hole on socket XS2, detect that harness clip ZJ, detection line plug XP1, detection line socket XS1 and power circuit rectifier stack UR are born
Pole forms loop, and relay K2 coil energized actions, relay K2 normally opened contacts K2-1 closures, electric E loops are connected, power supply from
Phase line is to relay K2 normally opened contacts K2-1, dimmer switch TG, electrical appliance E, alternating current ammeter PA2, linkage key switch SB3
Normally-closed contact SB3-1 and zero line formation loop, electrical equipment E are bright.Now, the electric current that DC ammeter PA1 is shown is relay K2 lines
DC current is enclosed, the electric current that alternating current ammeter PA2 is shown is electrical equipment E alternating currents, and is recorded respectively.Explanation：In device
Circuit is detected in portion, predominantly detects relay K2 coil DC currents, inside device the relay K2 coils DC current of detection and
Detect the relay K2 coils DC current contrast of the grounding body grounding resistance of ground wire connection, it can be determined that the ground connection of ground wire connection
Whether body grounding resistance is normal.And detection electrical equipment E alternating currents, detection electrical equipment E alternating current and leakage switch setting action
Current value is equal or slightly bigger.
Equipment detects circuit：Including power circuit and the relay K1 coil in parallel with power circuit transformer TR inputs
, fuse FU2, relay K2 lines are connected in series between hole on power circuit rectifier stack UR positive poles and test socket XS2
Circle, relay K1 normally opened contact K1-1, DC ammeter PA1, linkage key switch SB2 normally-closed contacts SB2-1.Power circuit
Rectifier stack UR negative poles distinguish connecting detection socket XS2 left hole, right hole and connecting detection line socket XS1, detection line plug
XP1, detection harness clip JZ.
Above-mentioned equipment detection circuit mainly for detection of the phase line of single-phase three-wire electrical equipment, zero line, electric elements with
Ground wire, metal shell whether direct short-circuit.
Concrete operation step and operation principle：Installation's power source plug is inserted in normal power outlet, will be detected
Single-phase three-wire electrical equipment attaching plug insertion apparatus test socket XS2, presses linkage key switch SB1, and link key switch
SB1 normally opened contacts SB1-1, SB1-2 are connected, and installation's power source is connected, relay K1 coil energized actions, relay K1 normally opened contacts
K1-1 is closed, and relay K2 wire loops are obstructed, the positive best fuse FU2 of power circuit rectifier stack UR, relay K2 coils,
Relay K1 normally opened contact K1-1, DC ammeter PA1, linkage key switch SB2 normally-closed contacts SB2-1, test socket XS2
Upper hole, tested measurement equipment ground wire plug, equipment ground wire, equipment metal shell and tested measurement equipment electric elements, phase line, zero line,
Phase line plug and zero line plug, test socket XS2 left hole and right hole and power circuit rectifier stack UR negative loops are obstructed, relay
Device K2 coils are failure to actuate, and ammeter PA1 no currents are shown, outside phase line, zero line, electric elements and the ground wire of electrical equipment, metal
Shell does not have direct short-circuit.Otherwise it is abnormal.
Mainly for detection of single-phase three-wire electrical equipment three-pin plug ground wire latch connect ground wire to metal shell be
In no connection.
Concrete operation step and operation principle：Installation's power source plug is inserted in normal power outlet, will be detected
Single-phase three-wire electrical equipment attaching plug insertion apparatus test socket XS2, examines line plug XP1 insertions to examine line socket XS1, inspection
Test harness clip JZ and clamp equipment metal shell.Linkage key switch SB1 is pressed, the key switch SB1 normally opened contacts SB1-1 that links,
SB1-2 is connected, and installation's power source is connected, relay K1 coil energized actions, relay K1 normally opened contacts K1-1 closures, relay K2
Wire loop is connected, and the positive best fuse FU2 of power circuit rectifier stack UR, relay K2 coils, the normally opened of relay K1 touch
Hole, tested measurement equipment on point K1-1, DC ammeter PA1, link key switch SB2 normally-closed contacts SB2-1, test socket XS2
Ground wire plug, equipment ground wire, equipment metal shell, inspection harness clip JZ, inspection line plug XP1, inspection line socket XS1 and power supply
Circuit rectifies component UR negative loops are connected, relay K2 coil energized actions, and ammeter PA1 shows electric current, electrical equipment three
The ground wire of the ground wire latch connection of n pin package n is normal to metal shell connection.Otherwise it is abnormal.
Ground wire grounded resistance detecting circuit：Including power circuit and the relay in parallel with power circuit transformer TR inputs
Device K1 coils, be connected in series between power circuit rectifier stack UR positive poles and power ground plug XPPE1 fuse FU2,
Relay K2 coils, relay K1 normally opened contact K1-1, DC ammeter PA1, linkage key switch SB2 normally opened contacts SB2-
2nd, ground wire checkout button SBTPE.Detection line is connected in series between power circuit rectifier stack UR negative poles and detection harness clip JZ
Socket XS1, detection line plug XP1.
Whether the grounding body grounding resistance connected mainly for detection of hole ground wire on power supply Three-hole socket is normal.Concrete operations
Step and operation principle and following leakage switch detect that the concrete operation step and operation principle of circuit are consistent（Relay K2
Wire loop first works, and this part is identical, and this part that worked behind electrical appliance E loops is used for leakage switch and examines circuit）.
Leakage switch detects circuit：Including power circuit and the relay K1 in parallel with power circuit transformer TR inputs
Coil, fuse FU2, relay are connected in series between power circuit rectifier stack UR positive poles and power ground plug XPPE1
Device K2 coils, relay K1 normally opened contact K1-1, DC ammeter PA1, linkage key switch SB2 normally opened contacts SB2-2,
X -ray inspection X button SBTPE.Detection line socket is connected in series between power circuit rectifier stack UR negative poles and detection harness clip JZ
XS1, detection line plug XP1；It is connected in series between linkage key switch SB1 normally opened contacts SB1-1 and power ground plug XPPE1
There are relay K2 normally opened contacts K2-1, dimmer switch TG, electrical equipment E, alternating current ammeter PA2, linkage key switch SB3 normally opened contacts
SB3-2, linkage key switch SB2 normally opened contacts SB2-3, ground wire checkout button SBTPE.
Mainly for detection of the power outlet controlled by leakage switch, when the equipment simulating electric leakage on socket, Leakage Current
When setting working value equal to or slightly greater than leakage switch, whether detection leakage switch trips.And ground wire grounded resistance detecting circuit
Detect that circuit concrete operation step and operation principle are consistent with leakage switch（Relay K2 wire loops first work this part phase
Together, this part is worked behind electrical appliance E loops for leakage switch inspection circuit）.
Concrete operation step and operation principle：Installation's power source plug is inserted on the power supply Three-hole socket to be detected, determined
Jack connector is normal, power supply is normal, and test wire clip JZ is connected with water pipe（Metallic water pipe, metal blow-off pipe, gold can also be selected
Category fire extinguisher canvas hose, lightning conduction etc. and the earth are completely embedded and do in grounding resistance very low metal object or certainly grounding body, it is ensured that inspection
The metal object grounding resistance that survey line clip JZ is connected is normal）, detection line plug XP1 insertion detection line socket SX1, press linkage
Key switch SB1, linkage key switch SB1 normally opened contacts SB1-1, SB1-2 are connected, and installation's power source is connected, relay K1 coils
Energized action, relay K1 normally opened contacts K1-1 closures, then linkage key switch SB2 is pressed, link key switch normally opened contact
SB2-2, SB2-3 are connected, relay K2 wire loops are connected, the positive best fuse FU2 of power circuit rectifier stack UR, relay
K2 coils, relay K1 normally opened contact K1-1, DC ammeter PA1, linkage key switch SB2 normally opened contacts SB2-2, ground wire
Checkout button SBTPE, power ground plug XPPE1, power ground socket XSPE1, ground wire, grounding body, the earth, metallic water pipe connect
Ground body, metallic water pipe, detection harness clip JZ, detection line plug XP1, detection line socket XS1 return to power circuit rectifier stack UR
Negative pole.Relay K2 wire loops are connected, relay K2 coil energized actions, relay K2 normally opened contacts K2-1 closures, electric E
Loop is connected, and now, the electric current that DC ammeter PA1 is shown is relay K2 coil DC currents, and is recorded and device
Internal measurement relay K2 coil currents are contrasted, if than surveying the few 3mA of electric current, the grounding body ground connection of ground wire connection inside device
Resistance is normal.If than surveying few more than the 3mA of electric current inside device, but relay K2 coils have reached starting current, ground wire again
The grounding body grounding resistance of connection increases a little, if relay K2 coils are not reaching to starting current, the ground connection of ground wire connection
Body grounding resistance increases.Connect above-mentioned electric E loops to connect, continue to operate：Press linkage key switch SB3, linkage key switch
SB3 normally opened contact SB3-2 closures, power supply is normal to linkage key switch SB1 normally opened contact SB1-1, relay K2 from phase line
Open contact K2-1, dimmer switch TG, electrical appliance E, alternating current ammeter PA2, linkage key switch SB3 normally opened contact SB3-2, connection
Dynamic key switch SB2 normally opened contact SB2-3, ground wire checkout button SBTPE, power ground plug XPPE1, power ground socket
XSPE1, ground wire, grounding body, the earth return to power end zero point（If hole is using protection zero line in power outlet, electric current is straight
Connect from protection zero line and return to power end）.Such as electric leakage switch tripping, power outlet connection leakage switch is normal, leakage switch
Normally, it is otherwise abnormal.
Integration unit internal detection circuitry；Equipment detects circuit；Ground wire grounded resistance detecting circuit；Leakage switch detection electricity
Described in road etc., only after the grounding body grounding resistance that ground wire is connected is normal, relay K2 coils can be only achieved starting current,
Relay K2 normally opened contacts K2-1 is closed, and just can turn on leakage switch detection circuit loop, and relay K2 coil DC currents are main
If detecting whether the grounding body grounding resistance of ground wire connection is normal.It is advanced when detecting the grounding body grounding resistance of ground wire connection
Luggage puts internal detection circuitry detection, relay K2 coil current numerical value, is recorded from ammeter PA1.Then detect ground
During the grounding body grounding resistance of line connection, recorded relay K2 coil current numerical value, then from ammeter PA1, then again
The relay K2 coil currents contrast detected with device internal detection circuitry, it is possible to judge the grounding body ground connection of ground wire connection
Whether resistance is normal.If than surveying the few 3mA of electric current inside device, the grounding body grounding resistance of ground wire connection is normal.If than
Few more than the 3mA of electric current is surveyed inside device, but relay K2 coils have reached starting current, the grounding body ground connection of ground wire connection again
Resistance increases a little, if relay K2 coils are not reaching to starting current, the grounding body grounding resistance increase of ground wire connection.
Further, in the specific implementation, it is 20V and following that dimmer switch TG, which selects voltage, electric current be 32mA and with
Under specification dimmer switch, electrical appliance E is from conventional bulb, and its rated voltage is that 220V power is 40W, when 220V exchanges
After bidirectional triode thyristor of the electricity through dimmer switch TG changes voltage turn-on angle, voltage x current reduction, it is therefore an objective to reduce returning for electrical appliance
Road voltage, electric current is discharged into the earth through ground wire, examines whether leakage switch trips；Specifically, electrical appliance E alternating currents, mainly
It is whether detection leakage switch trips, it is specific as follows：
First, when the grounding body grounding resistance that ground wire is connected increases or seriously increased, relay K2 coil starting currents
Reduce, relay K2 is failure to actuate, relay normally open contact K2-1 disconnects leakage switch detection circuit.Ensure ground wire safety.Its
It is secondary, when the grounding body grounding resistance that ground wire is connected is slightly increased, but relay K2 coil starting currents are reached, relay is moved
Make, relay normally open contact K2-1 connects leakage switch detection circuit, whether detection leakage switch trips.
Furthermore, when the grounding body grounding resistance that ground wire is connected is normal, reach relay K2 coil starting currents, relay
K2 is acted, and relay normally open contact K2-1 connects leakage switch detection circuit, and whether detection leakage switch trips.
Ground wire automatic detection/the observation circuit, power supply phase line plug XPL1, fuse FU1 are connect by sensing device GY2
Resistance R9, resistance the R9 other end connect ground wire checkout button SBTPE, power ground plug XPPE1 and and grounding wafer respectively
Resistance R5, resistance R6 and LED 5 are serially connected between PEJ.
Mainly for detection of or monitoring socket on hole protection ground wire（Protection zero line）Powered alarm, while can be additionally used in inspection
Protection ground wire in hole in survey or monitoring socket（Protection zero line）Open circuit alarm.
Concrete operation step and operation principle：First, installation's power source plug is inserted to the hole of power supply three that detect or monitor
On socket；When voltage in ground strip.Voltage is through power ground plug XPPE1, ground wire checkout button SBTPE, resistance R5, resistance
R6, Light-Emitting Diode LED5, grounding wafer PEJ, the earth.Weak current flows through Light-Emitting Diode LED5, Light-Emitting Diode LED5
Luminous irradiation photo resistance RL2, photo resistance RL2 resistance is reduced, given at electric signal speech chip, speech chip program at once
Reason, then send sound to electric signal loudspeaker B.
And when the grounding body grounding resistance that power ground jack XSPE1 ground wire is connected, seriously increase or ground wire section are opened a way
When, first, ground wire produces induced voltage behind phase line open-circuit, and ground wire induced voltage is examined through power ground plug XPPE1, ground wire
Test button SBTPE, resistance R5, resistance R6, Light-Emitting Diode LED5, grounding wafer PEJ, the earth；Secondly, sensing device GY2 pairs
While sense voltage, sensing device GY2 secondary induced voltage through resistance R9, resistance R5, resistance R6, Light-Emitting Diode LED5, connect
Ground contact PEJ, the earth.Weak current flows through Light-Emitting Diode LED5, the luminous irradiation photo resistance RL2 of Light-Emitting Diode LED5,
Photo resistance RL2 resistance is reduced at once, gives electric signal speech chip, the processing of speech chip program, then give electric signal loudspeaker B hairs
Go out sound.
Zero line automatic detection/the observation circuit, power supply phase line plug XPL1, fuse FU1 are connect by sensing device GY1
Resistance R8, resistance the R8 other end connect respectively zero line checkout button SBTN, zero-power line plug XPN1 and with grounding wafer NJ
Between be serially connected with resistance R3, resistance R4 and LED 4.
Mainly for detection of or the powered alarm of monitoring socket left hole zero line, while can be additionally used in detection or monitoring socket is left
Hole zero-line open-circuit alarm.
Concrete operation step and operation principle：Installation's power source plug is inserted to the power supply Three-hole socket that detect or monitor
On；When voltage on zero line band.Voltage is through zero-power line plug XPN1, zero line checkout button SBTN, resistance R3, resistance R4, hair
Light diode LED4, grounding wafer NJ, the earth.Weak current flows through Light-Emitting Diode LED4, and Light-Emitting Diode LED4 is luminous to be shone
Photo resistance RL1 is penetrated, Light-Emitting Diode RL1 resistance is reduced at once, give electric signal speech chip, speech chip program is handled, then
Sound is sent to electric signal loudspeaker；And when zero-power line jack XSN1 zero line to power end section zero-line open-circuit, first,
Zero line produces induced voltage behind phase line open-circuit, and zero line induced voltage is through zero-power line plug XPN1, zero line checkout button
SBTN, resistance R3, resistance R4, Light-Emitting Diode LED4, grounding wafer NJ, the earth；Secondly, sensing device GY1 secondary is sensed
Voltage, sensing device GY1 secondary induced voltage through resistance R8, resistance R3, resistance R4, Light-Emitting Diode LED4, grounding wafer NJ,
Greatly.Weak current flows through Light-Emitting Diode LED4, and luminous irradiation photo resistance RL1, the RL1 resistance of Light-Emitting Diode LED4 is at once
Reduction, gives electric signal speech chip, the processing of speech chip program, then send sound to electric signal loudspeaker.
Described warning circuit, including by zero line automatic detection/observation circuit LED 4 control it is photosensitive
The resistance RL1 and photo resistance RL2 controlled by the LED 5 of ground wire automatic detection/observation circuit, and it is photosensitive by this
Resistance RL1 and photo resistance RL2 warning circuit, the warning circuit also include：The main control chip OTP20- changed for signal
08 and external sound-controlled apparatus, described external sound-controlled apparatus uses loudspeaker in this programme, is also provided with showing certainly
Show device, warning message is shown by display, while the warning circuit is from provided with fixed independent current source；Furthermore
Provided with the resistance R1 and electric capacity C1 being connected in parallel at main control chip OTP20-08 signal input part PIN1；Simultaneously in main control chip
Provided with the resistance R2 and electric capacity C2 being connected in parallel at OTP20-08 signal input part PIN2；And main control chip OTP20-08's
Be provided with electric capacity C3 between output end PIN5 and PIN7, electric capacity C3 two ends be connected with simultaneously the power supply of warning circuit input and
Output end, is provided with loudspeaker B between PIN6 and PIN8.
For that preferably can be examined automatically to ground wire automatic detection/observation circuit, the zero line in the device described in this programme
Survey/observation circuit and phase alignment circuit carry out it is interim in real time check and detect, and then be respectively equipped with phase line detect manually circuit,
Line detects that circuit and zero line detect circuit manually manually.
And described phase line detects that circuit is made up of grounding wafer LP, resistance R7 and LED 1 manually, power supply
Resistance R7 and LED 1 are serially connected between phase line plug XPL1 and grounding wafer LP.
When for detecting whether power outlet right hole has voltage and whether normal voltage manually.
Concrete operation step and operation principle are as follows：
First, installation's power source plug is inserted on the power supply Three-hole socket to be detected, hand touches grounding wafer LP, faint
Electric current through resistance R7, LED 1, grounding wafer LP, human body, the earth, weak current flow through LED 1 and
Luminous, power outlet right hole has voltage.Linkage key switch SB1 is pressed, linkage key switch normally opened contact SB1-1, SB1-2 connect
It is logical, if voltmeter PV shows in the range of voltage is 220V+7%, -10% that power outlet left hole zero line, right hole phase terminal are just
Often, supply voltage is normal, otherwise abnormal.
When being mainly used in manual test socket right hole phase line and whether being controlled by leakage switch.
Concrete operation step and operation principle are as follows：
After whether having voltage and whether normal voltage according to manual detection power outlet right hole, socket right hole electricity is determined
After positive pressure is normal, leakage switch LK is closed, hand touches grounding wafer LP, if LED 1 does not work, leakage switch LK is
Power outlet right hole phase line is arrived through control, belongs to normal, on the contrary it is abnormal.
When whether being mainly used in manual test socket right hole phase line by breaker control.
After whether having voltage and whether normal voltage according to manual detection power outlet right hole, socket right hole electricity is determined
After positive pressure is normal, circuit breaker Q F is closed, hand touches grounding wafer LP, if LED 1 does not work, circuit breaker Q F has been controlled
Power outlet right hole phase line is made, belongs to normal, on the contrary it is abnormal.
Whether manual test socket right hole phase line is controlled by the switch on the socket
After whether having voltage and whether normal voltage according to manual detection power outlet right hole, socket right hole electricity is determined
After positive pressure is normal, the switch Q closed on socket, hand touches grounding wafer LP, if LED 1 does not work, opening on socket
Close Q and controlled power outlet right hole phase line, belong to normal, on the contrary it is abnormal.
Further, described ground wire detects circuit by grounding wafer PEP, resistance R11 and LED 3 manually
Composition, is serially connected with resistance R11 and LED 3 between resistance R9 and grounding wafer PEP.Described ground wire is detected manually
Circuit is mainly used in detecting whether hole ground wire is normal in power outlet manually.
Concrete operation step and operation principle are as follows：
After first inserting on the power supply Three-hole socket to be detected by installation's power source plug, determine that socket right hole voltage is normal, hand
Grounding wafer PEP is touched, LED 3 does not light, ground wire Preliminary detection in hole is normal in power outlet, on the contrary it is abnormal.
Further, described zero line detects circuit by grounding wafer NP, resistance R10 and 2 groups of LED manually
Into being serially connected with resistance R10 and LED 2 between resistance R8 and grounding wafer NP.Described zero line detects circuit manually
It is mainly used in detecting whether power outlet left hole zero line is normal manually.
Concrete operation step and operation principle are as follows：
After first inserting on the power supply Three-hole socket to be detected by installation's power source plug, determine that socket right hole voltage is normal, hand
Grounding wafer NP is touched, LED 2 does not light, power outlet left hole zero line Preliminary detection is normal, on the contrary it is abnormal.
In order to preferably control, protection circuit or the described device of regulation, in the power supply phase line described in this programme
Plug XPL1 is provided with fuse FU1 with circuit connecting end；Being provided between described resistance R3 and zero line plug XPN1 is used to break
Open the zero line checkout button SBTN of zero line automatic detection/observation circuit；In the specific implementation, the zero line automatic detection/monitoring
The LED 4 of circuit is packaged as a whole with the photo resistance RL1 controlled by the LED 4；And describedly
The LED 5 of line automatic detection/observation circuit is encapsulated with the photo resistance RL2 controlled by the LED 5
It is integrated.
When specifically used, the attaching plug end of the device described in this programme is connected with residing external circuit or equipment
When connecing, phase line, zero line and the ground wire that the device described in this programme can be detected and monitored in time in residing circuit whether there is different
Often or when power environment or power utilization environment are abnormal, device described in this programme can be by the language of the warning device of warning circuit
Sound points out operator or user is by power-off or avoids contact with equipment, so as to reach reminding effect.Such as hole guarantor on socket
When protecting ground wire exception, the device described in this programme can voice message：" receptacle grounds are with voltage or opened a way, and please check.",
And when socket left hole abnormity of zero line, the device described in this programme can voice message：" socket zero line is with voltage or has opened
Road, please be checked.”；Simultaneously in the case of ground wire detection normally in hole on socket left hole zero line, socket right hole phase line, socket, the dress
Putting then can be without voice message.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (9)
1. a kind of circuit or Electrical Testing, monitoring device, it is characterised in that described device includes：
Power circuit：Including transformer TR and rectifier stack UR, power supply is provided for device；
The ground wire grounded resistance of equipment and leakage switch detection circuit：Including controllable power circuit transformer TR input break-makes
Linkage key switch SB1, the relay K1 coil in parallel with power circuit transformer TR inputs and it is connected in parallel on relay K1 lines
Relay K2 normally opened contacts K2-1, dimmer switch TG, electrical appliance E, ammeter PA2 and the linkage key switch SB3 for enclosing two ends are normal
Closed contact SB3-1, another branch road：Alternating current ammeter PA2 is opened to linkage button is connected in series between power ground plug XPPE1
Close SB3 normally opened contacts SB3-2, linkage key switch SB2 normally opened contacts SB2-3, ground wire checkout button SBTPE；Linkage button is opened
The other end for closing SB1 meets the phase wire terminal XPL1 of the attaching plug and zero line joint XPN1 of attaching plug respectively, and power circuit is whole
Fuse FU2, relay K2 coils, relay K1 are connected in series with stream component UR positive poles and test socket XS2 between hole
Normally opened contact K1-1, DC ammeter PA1, linkage key switch SB2 normally-closed contact SB2-1, power circuit rectifier stack UR are negative
Pole meets test socket XS2 left hole, right hole and connecting detection line socket XS1, detection line plug XP1, detection harness clip ZJ respectively,
Another branch road：To being connected in series between power ground plug XPPE1, linkage key switch SB2 is normally opened to be touched DC ammeter PA1
Point SB2-2, ground wire checkout button SBTPE；
Ground wire automatic detection/observation circuit：The phase wire terminal XPL1 of attaching plug passes through sensing device GY2 connecting resistance R9, resistance
The earth connection point XPPE1 of R9 another termination attaching plug and resistance R5, resistance R6 and hair are serially connected between grounding wafer PEJ
Optical diode LED5；
Zero line automatic detection/observation circuit：The phase wire terminal XPL1 of attaching plug passes through sensing device GY1 connecting resistance R8, resistance
The zero line joint XPN1 of R8 another termination attaching plug and resistance R3, resistance R4 are serially connected between grounding wafer NJ and luminous
Diode (LED) 4；
Warning circuit：Detected including the photo resistance RL1 controlled by the LED 4 of zero line detection circuit and by ground wire
The photo resistance RL2 of the LED 5 of circuit, and by photo resistance RL1 and photo resistance RL2 warning circuit.
2. circuit according to claim 1 or Electrical Testing, monitoring device, it is characterised in that：Phase line is additionally provided with to examine manually
Slowdown monitoring circuit, described phase line detects that circuit is made up of grounding wafer LP, resistance R7 and LED 1 manually, attaching plug
Phase wire terminal XPL1 and grounding wafer LP between be serially connected with resistance R7 and LED 1.
3. circuit according to claim 1 or Electrical Testing, monitoring device, it is characterised in that：Ground wire is additionally provided with to examine manually
Slowdown monitoring circuit, described ground wire detects that circuit is made up of grounding wafer PEP, resistance R11 and LED 3 manually, resistance R9
Resistance R11 and LED 3 are serially connected between grounding wafer PEP.
4. circuit according to claim 1 or Electrical Testing, monitoring device, it is characterised in that：Zero line is additionally provided with to examine manually
Slowdown monitoring circuit, described zero line detects that circuit is made up of grounding wafer NP, resistance R10 and LED 2 manually, resistance R8
Resistance R10 and LED 2 are serially connected between grounding wafer NP.
5. circuit according to claim 1 or Electrical Testing, monitoring device, it is characterised in that：The phase of the attaching plug
Wire terminal XPL1 is provided with fuse FU1 with circuit connecting end.
6. circuit according to claim 1 or Electrical Testing, monitoring device, it is characterised in that：Described resistance R5 and ground
Provided with the ground wire checkout button SBTPE for disconnecting ground wire automatic detection/observation circuit between wire terminal XPPE1.
7. circuit according to claim 1 or Electrical Testing, monitoring device, it is characterised in that：Described resistance R3 and zero
The zero line checkout button SBTN for being used for disconnecting zero line automatic detection/observation circuit is provided between wire terminal XPN1.
8. circuit according to claim 1 or Electrical Testing, monitoring device, it is characterised in that：The zero line automatic detection/
The LED 4 of observation circuit is packaged as a whole with the photo resistance RL1 controlled by the LED 4.
9. circuit according to claim 1 or Electrical Testing, monitoring device, it is characterised in that：Described ground line detection circuit
The LED 5 and photo resistance RL2 that is controlled by the LED 5 be packaged as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310745387.9A CN104749455B (en) | 2013-12-31 | 2013-12-31 | A kind of circuit or Electrical Testing, monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310745387.9A CN104749455B (en) | 2013-12-31 | 2013-12-31 | A kind of circuit or Electrical Testing, monitoring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104749455A CN104749455A (en) | 2015-07-01 |
| CN104749455B true CN104749455B (en) | 2017-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310745387.9A Expired - Fee Related CN104749455B (en) | 2013-12-31 | 2013-12-31 | A kind of circuit or Electrical Testing, monitoring device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105717367B (en) * | 2016-04-13 | 2019-06-14 | 国网新疆电力公司阿克苏供电公司 | Earthing or grounding means resistance monitor for preventing people and animals from getting an electric shock |
| CN108224790B (en) * | 2018-04-04 | 2024-04-30 | 广东格美淇电器有限公司 | Ground wire live detection device and electric water heater |
| CN110850332A (en) * | 2019-11-20 | 2020-02-28 | 深圳市奇辉电气有限公司 | Trend statistical type grounding body monitoring method and device |
| CN112098892A (en) * | 2020-09-18 | 2020-12-18 | 新兴铸管股份有限公司 | Electricity leakage alarm circuit for electricity utilization equipment |
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| CN2045156U (en) * | 1988-09-07 | 1989-09-27 | 尹海栋 | Multifunctional protective device for household electric consumer |
| CN2348403Y (en) * | 1998-08-04 | 1999-11-10 | 谢为驹 | Leakage protection switch detector |
| CN2398760Y (en) * | 1999-07-13 | 2000-09-27 | 林永放 | Automatic electric protector for electrical equipment |
| CN2758783Y (en) * | 2004-12-29 | 2006-02-15 | 许源芳 | Ground wire detector and terminal plate for detecting ground wire condition |
| CN201750009U (en) * | 2010-05-28 | 2011-02-16 | 曹钟林 | Household appliance leakage protection socket |
| CN202434818U (en) * | 2012-02-20 | 2012-09-12 | 慈溪冬宫电器有限公司 | Power socket with electric leakage alarming function |
| CN203658502U (en) * | 2013-12-31 | 2014-06-18 | 林开兵 | Detecting and monitoring device for circuit or electrical appliance |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011089849A (en) * | 2009-10-21 | 2011-05-06 | Asahi Kasei Electronics Co Ltd | Wire breaking detector |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2045156U (en) * | 1988-09-07 | 1989-09-27 | 尹海栋 | Multifunctional protective device for household electric consumer |
| CN2348403Y (en) * | 1998-08-04 | 1999-11-10 | 谢为驹 | Leakage protection switch detector |
| CN2398760Y (en) * | 1999-07-13 | 2000-09-27 | 林永放 | Automatic electric protector for electrical equipment |
| CN2758783Y (en) * | 2004-12-29 | 2006-02-15 | 许源芳 | Ground wire detector and terminal plate for detecting ground wire condition |
| CN201750009U (en) * | 2010-05-28 | 2011-02-16 | 曹钟林 | Household appliance leakage protection socket |
| CN202434818U (en) * | 2012-02-20 | 2012-09-12 | 慈溪冬宫电器有限公司 | Power socket with electric leakage alarming function |
| CN203658502U (en) * | 2013-12-31 | 2014-06-18 | 林开兵 | Detecting and monitoring device for circuit or electrical appliance |
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| CN104749455A (en) | 2015-07-01 |
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