CN105158688B - Electromechanical equipment fault location and alarm protecting apparatus - Google Patents
Electromechanical equipment fault location and alarm protecting apparatus Download PDFInfo
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- CN105158688B CN105158688B CN201510561581.0A CN201510561581A CN105158688B CN 105158688 B CN105158688 B CN 105158688B CN 201510561581 A CN201510561581 A CN 201510561581A CN 105158688 B CN105158688 B CN 105158688B
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Abstract
The invention discloses a kind of electromechanical equipment fault location and alarm protecting apparatus, it can not ensure electromechanical equipment safe operation for solving the problems, such as to exist in the prior art the protection equipments such as electrothermal relay and can not conveniently learn electromechanical equipment failure cause.The device includes：Starting module, for starting motor or/and plant equipment, fault location and alarm and protection module and temperature monitoring module；Fault location and alarm and protection module, for carrying out fault location after the heat alarm of temperature monitoring module transmission is received, and control starting module power-off protection motor or/and plant equipment；Temperature monitoring module, for monitoring the skin temperature of motor or/and plant equipment, and heat alarm is sent to fault location and alarm and protection module when the skin temperature of motor or/and plant equipment is higher than given threshold.Using said apparatus can remote notification maintenance personal's malfunction, be automatically stopped the operation of electromechanical equipment, avoid electromechanical equipment overheat burn.
Description
Technical field
The present invention relates to electrodynamic field, more particularly to a kind of electromechanical equipment fault location and alarm protecting apparatus.
Background technology
Motor is a kind of equipment for converting electrical current into mechanical energy, and influenceing maximum principal element to motor life is
Temperature, the temperature too high strong influence life-span of motor.In the prior art, motor can not be reliably protected to be transported in production
Safety in row.Motor causes because of the factor such as excess load excessively stream, open-phase running excessively stream, bearing wear, external air channel be not smooth
Fuselage cover overheat, trigger motor winding coil burn with other component damages, bring time, manpower to production economy
And the significant wastage on material.
Nowadays the protection technique measure of motor, all completed by electrothermal relay and integrated protector for electric motor super negative
Lotus, open-phase protection, more advanced technical equipment frequency converter is also commonly used in recent years, play protection motor overload, disconnected phase,
The error protection such as decompression, under-voltage.In actual production, electrothermal relay, integrated protector for electric motor, frequency-variable controller are to operating
Motor all completely can not reliably play the safety of protection motor.The guarantor in excess load and open-phase running for motor
Shield, failure problem can only be stoppage protection motor after electrothermal relay action, if but to meet electrothermal relay out of control inactive
When making, motor meeting continuous service is until damage equipment, and protect motor by electrothermal relay, when maintenance personal overhauls
Motor can not be learnt the very first time, and why reason is shut down, it is necessary to can just investigate thoroughly failure by multitrack operation program, fix a breakdown,
Cause maintenance time long, influence run time.
The content of the invention
The embodiment of the present invention provides a kind of electromechanical equipment fault location and alarm protecting apparatus, to solve in the prior art
The protection equipments such as electrothermal relay be present can not ensure electromechanical equipment safe operation and can not conveniently learn electromechanical equipment failure cause
The problem of.
The embodiment of the present invention, which provides a kind of electromechanical equipment fault location and alarm protecting apparatus, the device, to be included：
Starting module 100, for starting motor or/and plant equipment, fault location and alarm and protection module 110 and temperature
Spend monitoring modular 120；
Fault location and alarm and protection module 110, for receiving the temperature alarming letter of the transmission of temperature monitoring module 120
Fault location is carried out after number, and controls the power-off protection motor of starting module 100 or/and plant equipment；
Temperature monitoring module 120, for monitoring the skin temperature of motor or/and plant equipment, and in motor or/and
When the skin temperature of plant equipment is higher than given threshold heat alarm is sent to fault location and alarm and protection module 110；
Wherein, starting module 100, fault location and alarm and protection module 110, temperature monitoring module 120 and motor
End to end formation loop successively；
Starting module 100 includes the first pair of switch (DK2), determines one end of the first pair of switch (DK2) connection live wire
For zero line, the one end for determining the first pair of switch (DK2) connection zero line is zero line side；
Fault location and alarm and protection module 110 include current overload alarm branch road, high temperature alarm branch road, high temperature early warning branch
Road and long-distance intelligent alarm unit；
Current overload alarm branch road includes electrothermal relay (RJ) and first contactor (C3)；Electrothermal relay (RJ) and live wire
End connection, the normally opened node of electrothermal relay (RJ) are connected with coil one end of first contactor (C3), first contactor (C3)
The coil other end is connected with zero line side, and main contacts one end of first contactor (C3) is connected with zero line, the other end and hot relay
The normally opened node connection of device (RJ)；The normally closed node of electrothermal relay (RJ) is connected with high temperature alarm branch road, and with high temperature early warning
Branch road connects；The normally opened auxiliary contact of first contactor (C3) are connected with long-distance intelligent alarm unit；
High temperature alarm branch road includes second contactor (T1), very first time relay (SJ1) and the 3rd contactor (C4)；
The normally closed node of second contactor (T1) shows that branch road is connected with power supply, and power supply shows branch road and motor start-up/disconnected branches
Connection；The normally opened node of second contactor (T1) is connected with one end of the main contacts of very first time relay (SJ1), electrothermal relay
(RJ) normally closed node is connected with one end of the main contacts of the 3rd contactor (C4), the main contacts of very first time relay (SJ1)
The other end and one end all with the coil of the 3rd contactor (C4) of the other end of main contacts of the 3rd contactor (C4) be connected, heat
The normally closed node of relay (RJ) is connected with one end of the coil of very first time relay (SJ1), the line of the 3rd contactor (C4)
The other end of the other end of circle and the coil of very first time relay (SJ1) is all connected with zero line side；3rd contactor (C4)
Normally opened auxiliary contact are connected with long-distance intelligent alarm unit；Power supply shows that branch road is used to show electromechanical equipment fault location and alarm
The break-make electricity condition of protection device, motor start-up/disconnected branches are used to start or disconnect motor；
High temperature early warning branch road include the 4th contactor (T2), second time relay (SJ2), the 5th contactor (C5) and
3rd time relay (SJ3)；The normally closed node of 4th contactor (T2) is vacant, the normally opened node of the 4th contactor (T2) and
One end connection of the main contacts of two time relays (SJ2), the normally closed node of electrothermal relay (RJ) and the 5th contactor (C5)
The main contacts of one end connection of main contacts, the other end of the main contacts of second time relay (SJ2) and the 5th contactor (C5)
One end all with the coil of the 5th contactor (C5) of the other end be connected, the main contacts of second time relay (SJ2) it is another
The one end of the other end of the main contacts of end and the 5th contactor (C5) all with the coil of the 3rd time relay (SJ3) is connected, heat
The normally closed node of relay (RJ) is connected with one end of the coil of second time relay (SJ2), the line of the 5th contactor (C5)
The other end of circle, second time relay (SJ2) coil the other end and the 3rd time relay (SJ3) coil it is another
One end is all connected with zero line side；The normally opened auxiliary contact of 5th contactor (C5) are connected with long-distance intelligent alarm unit；
Temperature monitoring module 120 includes temperature sensor；Temperature sensor measures temperature and is higher than high temperature alarm temperature threshold
When, the coil adhesive of second contactor (T1)；When temperature sensor measures temperature and is higher than high temperature early warning temperature threshold, the 4th contact
The coil adhesive of device (T2).
Beneficial effect of the present invention includes：Perfect multiple protective of the electromechanical equipment from electric current to temperature.In the prior art only
Electromechanical equipment is protected by electrothermal relay, in electrothermal relay akinesia out of control, will result in the damage of electromechanical equipment
Ruin, and device provided in an embodiment of the present invention not only can in the case of current overload timely stoppage protection motor, and
After failure, the very first time, maintenance personal arrived scene in time it is known that failure cause by information-based alarm
Fix a breakdown, so as to reduce maintenance time, improve operating efficiency, solve because excess load, open-phase running are out of control, with detection
The method of temperature solves the protection problem to motor, avoids the economic loss caused by motor damages, reduces maintenance mans
The maintenance difficulty of people, after device provided in an embodiment of the present invention opens operating, if there is staff to operate not in place or unmanned value
In the case of keeping, still motor can be protected to be not damaged by.
Brief description of the drawings
Fig. 1 is the structural representation of the electromechanical equipment fault location and alarm protecting apparatus provided in the embodiment of the present invention；
Fig. 2 is the circuit structure diagram of the electromechanical equipment fault location and alarm protecting apparatus provided in the embodiment of the present invention；
Fig. 3 is the circuit connection diagram of medium-long range intelligent alarm unit of the embodiment of the present invention.
Embodiment
In order to provide the implementation that a kind of high electromechanical equipment of reliability crosses thermal overload protection, the embodiment of the present invention provides
The preferred embodiments of the present invention are entered below in conjunction with Figure of description by a kind of electromechanical equipment fault location and alarm protecting apparatus
Row explanation, it will be appreciated that preferred embodiment described herein is merely to illustrate and explain the present invention, and is not used to limit this hair
It is bright.And in the case where not conflicting, the feature in embodiment and embodiment in the application can be mutually combined.
The reason for prior art carries out overload protection by electrothermal relay to motor, but motor burns has very
It is more, such as excess load excessively stream, open-phase running excessively stream, bearing wear or external air channel be not smooth etc., these reasons can all draw
The rise of motor fuselage cover temperature is played, triggers motor winding coil to burn or the problem of other component damages, to production
Time, the significant wastage in manpower and materials are come in economy-zone；And motor is in operation, when there is equipment fault, maintenance personal
It generally can not all be learnt in the very first time, wait until scene and can not clearly judge failure cause in time, determined failure cause
Again need take a substantial amount of time, therefore investigate thoroughly failure cause to fix a breakdown period, motor all can not normal operation, to life
Production causes extreme loss.In actual production, find summarizing electrothermal relay, integrated protector for electric motor or frequency-variable controller pair
The protective effect that operating motor plays is all limited, and burns motor and all have direct relation with fuselage cover temperature, because
This, the embodiment of the present invention will provide a kind of scheme of the integrated protection from induction-motor load electric current and fuselage cover temperature, realize
To motor reliably high performance remote information alarming and managing protection.
Refering to shown in Fig. 1, Fig. 2 and Fig. 3, the embodiment of the present invention provides a kind of electromechanical equipment fault location and alarm and protection dress
Put, the device includes：Starting module 100, for starting motor or/and plant equipment, fault location and alarm and protection module
110 and temperature monitoring module 120；Fault location and alarm and protection module 110, for sending out receiving temperature monitoring module 120
Fault location is carried out after the heat alarm sent, and controls the power-off protection motor of starting module 100 or/and plant equipment；
Temperature monitoring module 120, for monitoring the skin temperature of motor or/and plant equipment, and in motor or/and plant equipment
Skin temperature send heat alarm to fault location and alarm and protection module 110 when being higher than given threshold.
Wherein, starting module 100, fault location and alarm and protection module 110, temperature monitoring module 120 and motor
End to end formation loop successively；As shown in fig.2, the coil for contactor that the contactor in Fig. 2 is represented with square frame, with two
The contactor that individual short parallel lines represent is the main contacts of contactor；As shown in fig.3, represented in Fig. 3 with two short parallel lines
For the normally opened auxiliary contact of contactor, with a line segment interrupt that two short parallel lines symbol represents for normally closed auxiliary contact.Open
Dynamic model block 100 includes the first pair of switch (DK2), and the one end for determining the first pair of switch (DK2) connection live wire is zero line, really
One end of fixed the first pair of switch (DK2) connection zero line is zero line side；Starting module 100 also includes three and switchs (DK1), three
Switch (DK1) is connected on live wire, and as the master switch of whole device, first pair of switch (DK2) is just connected to three switches
(DK1) live wire where.
As shown in fig.2, electrothermal relay (RJ) mentioned below, second contactor (T1) and the 4th contactor (T2) it is normal
Close node, is all the node connected in Fig. 2, and normally opened node is all the node being not connected with Fig. 2.Fault location and alarm are protected
Shield module 110 includes current overload alarm branch road, high temperature alarm branch road, high temperature early warning branch road and long-distance intelligent alarm unit；
Long-distance intelligent alarm unit is existing GSM intelligent alarm systems, can be long-range to the sending short message by mobile phone set when connecting
Or call.Current overload alarm branch road includes electrothermal relay (RJ) and first contactor (C3)；Electrothermal relay (RJ) with
Zero line is connected, and the normally opened node of electrothermal relay (RJ) is connected with coil one end of first contactor (C3), first contactor
(C3) the coil other end is connected with zero line side, and main contacts one end of first contactor (C3) is connected with zero line, the other end with
The normally opened node connection of electrothermal relay (RJ)；The normally closed node of electrothermal relay (RJ) is connected with high temperature alarm branch road, and with height
Warm early warning branch road connection；The normally opened auxiliary contact of first contactor (C3) are connected with long-distance intelligent alarm unit.
High temperature alarm branch road includes second contactor (T1), very first time relay (SJ1) and the 3rd contactor (C4)；
The normally closed node of second contactor (T1) shows that branch road is connected with power supply, and power supply shows branch road and motor start-up/disconnected branches
Connection；The normally opened node of second contactor (T1) is connected with one end of the main contacts of very first time relay (SJ1), electrothermal relay
(RJ) normally closed node is connected with one end of the main contacts of the 3rd contactor (C4), the main contacts of very first time relay (SJ1)
The other end and one end all with the coil of the 3rd contactor (C4) of the other end of main contacts of the 3rd contactor (C4) be connected, heat
The normally closed node of relay (RJ) is connected with one end of the coil of very first time relay (SJ1), the line of the 3rd contactor (C4)
The other end of the other end of circle and the coil of very first time relay (SJ1) is all connected with zero line side；3rd contactor (C4)
Normally opened auxiliary contact are connected with long-distance intelligent alarm unit.
Power supply shows that branch road is used for the break-make electricity condition for showing electromechanical equipment fault location and alarm protecting apparatus, motor
Startup/disconnected branches are used to start or disconnect motor；High temperature early warning branch road includes the 4th contactor (T2), the second time relay
Device (SJ2), the 5th contactor (C5) and the 3rd time relay (SJ3)；The normally closed node of 4th contactor (T2) is vacant, the
The normally opened node of four contactors (T2) is connected with one end of the main contacts of second time relay (SJ2), electrothermal relay (RJ)
Normally closed node is connected with one end of the main contacts of the 5th contactor (C5), the main contacts of second time relay (SJ2) it is another
The one end of the other end of the main contacts of end and the 5th contactor (C5) all with the coil of the 5th contactor (C5) is connected, the second time
The other end of the main contacts of the other end of the main contacts of relay (SJ2) and the 5th contactor (C5) all with the 3rd time relay
(SJ3) one end of one end connection of coil, the normally closed node of electrothermal relay (RJ) and the coil of second time relay (SJ2)
Connection, when the other end of the coil of the 5th contactor (C5), the other end of the coil of second time relay (SJ2) and the 3rd
Between the other end of coil of relay (SJ3) be all connected with zero line side；The normally opened auxiliary contact of 5th contactor (C5) with it is long-range
Intelligent alarm unit connects；Temperature monitoring module 120 includes temperature sensor；Temperature sensor measures temperature and is higher than high temperature alarm
During temperature threshold, the coil adhesive of second contactor (T1)；When temperature sensor measures temperature and is higher than high temperature early warning temperature threshold,
The coil adhesive of 4th contactor (T2).
Specifically, power supply shows that branch road connection includes the 6th contactor (C2) and power supply indicator (L1)；Second contact
The normally closed node of device (T1) is connected with one end of the coil of the 6th contactor (C2), the normally closed node and the 6th of electrothermal relay (RJ)
One end connection of the main contacts of contactor (C2), the other end and the power supply indicator (L1) of the main contacts of the 6th contactor (C2)
One end is connected, and the other end of the coil of the other end of power supply indicator (L1) and the 6th contactor (C2) is all connected with zero line side；
Normally closed auxiliary contact one end of 6th contactor (C2) and first contactor (C3), the 3rd contactor (C4) and the 5th contactor
(C5) there is connection, the normally closed auxiliary contact other end of the 6th contactor (C2) is connected with long-distance intelligent alarm unit.The 6th
During the coil adhesive of contactor (C2), play a part of opening long-distance intelligent alarm unit.
Motor start-up/disconnected branches include stop button (TA), the 7th contactor (C1), start button (QA) and electricity
Motivation run indicator (L2)；One end of stop button (TA) is connected with the other end of the main contacts of the 6th contactor (C2), is stopped
Only the other end of button (TA) is connected with one end of start button (QA), and is connected with one end of the main contacts of the 7th contactor (C1)
Connect, the other end of the main contacts of the other end of start button (QA) and the 7th contactor (C1) all with motor running indicator lamp
(L2) one end connection, and the other end of the main contacts of the other end of start button (QA) and the 7th contactor (C1) is all with the 7th
The coil of one end connection of the coil of contactor (C1), the other end of motor running indicator lamp (L2) and the 7th contactor (C1)
The other end be all connected with zero line side.
Below in conjunction with the accompanying drawings, device provided by the invention is described in detail with specific embodiment.
When starting electromechanical equipment fault location and alarm protecting apparatus, first three switches (DK1) are connected, it is whole secondary
Safe and reliable break-make is used as in loop by the first pair of switch (DK2), connects the second pair of switch (DK3) so that temperature is supervised
Control module to be powered, now, electrothermal relay (RJ), second contactor (T1) and the 4th contactor (T2) obtain electricity, the 6th contactor
(C2) coil electricity, iron core adhesive action, now the main contacts of the 6th contactor (C2) startup of secondary circuit one could be given
Power supply is controlled, power supply indicator (L1) is bright, electric in whole device for indicating, meanwhile, very first time relay (SJ1) and second
The coil of the time relay (SJ2) also obtains electric adhesive, very first time relay (SJ1) and second time relay now
(SJ2) preliminary preparation has been carried out for transmission information.
The operation principle of electrothermal relay is to produce heat by the electric current of inflow thermal element, makes the double gold for having the different coefficients of expansion
Category piece deforms upon, and when deformation reaches certain distance, just promotes connecting rod action, disconnects control circuit, so that contactor
Dead electricity, main circuit disconnect, and realize the overload protection of motor.Overload protection element of the relay as motor, with its volume
Small, simple in construction, low cost and other advantages are widely applied in production.
When restarting power supply gives normal, start button (QA) is pressed, the coil of the 7th contactor (C1) obtains electric suction
Close, when being directly connected to motor, electricity is standby on motor, if connecting motor by frequency converter, frequency converter and motor all on
Electricity is standby, and in motor operation course, if load current is too high, electrothermal relay (RJ) action, normally closed node disconnects, motor
It is out of service, meanwhile, the normally opened node of electrothermal relay (RJ) is connected, and the coil of first contactor (C3) obtains electronic work, and first connects
The signal power source of the normally opened auxiliary contact of tentaculum (C3) is connected, and cell phone network signal is connected, and is started to the mobile phone set in advance
Number sends warning message, calls prompting, meanwhile, the fault-signal in electromechanical equipment fault location and alarm protecting apparatus
Lamp lights, and waiting maintenance personal, maintenance personal, which does not arrive scene, to learn motor by SMS on site fault clearing
The reason for failure.
Equally in motor operation course or the motor operation course started by frequency converter, motor because various therefore
Hinder reason and trigger the rise of motor casing temperature, may now trigger and alarm twice, be contacted for the first time with motor casing
When temperature sensor measures temperature and is higher than high temperature early warning temperature threshold, the coil adhesive of the 4th contactor (T2), usual high temperature is pre-
Alert temperature threshold is arranged to 70 degrees Celsius, after the normally opened node of the 4th contactor (T2) switches on power, the 5th contactor (C5)
Coil obtains adhesive after electricity, and the normally opened auxiliary contact of the 5th contactor (C5) switch on power, and triggering long-distance intelligent alarm unit will be believed
Number send on the mobile phone being previously set, notify maintenance personal on site fault clearing, meanwhile, the 3rd time relay (SJ3)
Coil also obtain electric adhesive, after time of the 3rd time relay (SJ3) reaches, the 3rd time relay (SJ3) it is normally closed auxiliary
Contact is helped to open.
After the alarm of high temperature alert status continues 15 minutes, mobile phone is deployed troops on garrison duty signal automatic guard setup again, if maintenance personal
Scene investigation is not arrived, and motor continues to run with 70 celsius temperatures, if motor casing temperature continues to raise, reach a high temperature report
During alert temperature threshold, 85 degrees Celsius are about arranged to, the coil of second contactor (T1) obtains electric adhesive；Second contactor (T1) it is normal
Prescribe and switch on power, the coil of the 3rd contactor (C4) obtains electric adhesive, and the normally opened auxiliary contact of the 3rd contactor (C4), which are powered, to be touched
Send out on long-distance intelligent alarm unit transmission signal to the mobile phone of maintenance personal, notify maintenance personal to exclude event to scene again
Barrier.
Foregoing circuit annexation is applied on motor, likewise, can also apply temperature monitoring module 120 in machine
The shell of tool equipment, in plant equipment adstante febre, being given warning in advance, and high temperature alarm.Can also add one group it is same
Structure, while monitor the operation of plant equipment and motor so that plant equipment and motor are all without because operation troubles
Heating triggers the accident burnt.
Fault location and alarm and protection module 110 are integrated in a cabinet, and malfunction indicator lamp is provided with outside cabinet, point
Do not connect corresponding contactor auxiliary contact to power to malfunction indicator lamp, you can show on the outside of cabinet so that maintenance personal one
To scene with regard to failure cause can be learnt, maintenance is excluded as early as possible.
In summary, scheme provided in an embodiment of the present invention, perfect multiple protective of the electromechanical equipment from electric current to temperature.
Only electromechanical equipment is protected by electrothermal relay in the prior art, in electrothermal relay akinesia out of control, will result in
The damage of electromechanical equipment, and device provided in an embodiment of the present invention not only can in the case of current overload timely stoppage protection
Motor, and after failure, the very first time, maintenance personal was it is known that failure is former by information-based alarm
Cause, in time on site fault clearing, so as to reduce maintenance time, operating efficiency is improved, solved because of excess load, disconnected mutually fortune
Row is out of control, solves the protection problem to motor with the method for detection temperature, avoids the economic loss caused by motor damages,
The maintenance difficulty of service worker is reduced, after device provided in an embodiment of the present invention opens operating, if having staff's operation not
In place or it is unattended in the case of, still motor can be protected to be not damaged by.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (3)
1. a kind of electromechanical equipment fault location and alarm protecting apparatus, it is characterised in that described device includes：
Starting module, for starting motor or/and plant equipment, fault location and alarm and protection module and temperature monitoring mould
Block；
Fault location and alarm and protection module, for carrying out event after the heat alarm of temperature monitoring module transmission is received
Barrier positioning, and control starting module power-off protection motor or/and plant equipment；
Temperature monitoring module, set for monitoring the skin temperature of motor or/and plant equipment, and in motor or/and machinery
When standby skin temperature is higher than given threshold heat alarm is sent to fault location and alarm and protection module；
Wherein, starting module, fault location and alarm and protection module, temperature monitoring module and motor end to end shape successively
Into loop；
Starting module includes the first pair of switch (DK2), and the one end for determining the first pair of switch (DK2) connection live wire is live wire
End, the one end for determining the first pair of switch (DK2) connection zero line is zero line side；
Fault location and alarm and protection module include current overload alarm branch road, high temperature alarm branch road, high temperature early warning branch road and
Long-distance intelligent alarm unit；
Current overload alarm branch road includes electrothermal relay (RJ) and first contactor (C3)；Electrothermal relay (RJ) connects with zero line
Connect, the normally opened node of electrothermal relay (RJ) is connected with coil one end of first contactor (C3), the coil of first contactor (C3)
The other end is connected with zero line side, and main contacts one end of first contactor (C3) is connected with zero line, the other end and electrothermal relay
(RJ) normally opened node connection；The normally closed node of electrothermal relay (RJ) is connected with high temperature alarm branch road, and with high temperature early warning branch
Road connects；The normally opened auxiliary contact of first contactor (C3) are connected with long-distance intelligent alarm unit；
High temperature alarm branch road includes second contactor (T1), very first time relay (SJ1) and the 3rd contactor (C4)；Second
The normally closed node of contactor (T1) shows that branch road is connected with power supply, and power supply shows that branch road is connected with motor start-up/disconnected branches；
The normally opened node of second contactor (T1) is connected with one end of the main contacts of very first time relay (SJ1), electrothermal relay (RJ)
Normally closed node be connected with one end of the main contacts of the 3rd contactor (C4), the main contacts of very first time relay (SJ1) it is another
The one end of the other end of the main contacts of one end and the 3rd contactor (C4) all with the coil of the 3rd contactor (C4) is connected, hot relay
The normally closed node of device (RJ) is connected with one end of the coil of very first time relay (SJ1), the coil of the 3rd contactor (C4)
The other end of the coil of the other end and very first time relay (SJ1) is all connected with zero line side；3rd contactor (C4) it is normally opened
Auxiliary contact are connected with long-distance intelligent alarm unit；Power supply shows that branch road is used to show electromechanical equipment fault location and alarm and protection
The break-make electricity condition of device, motor start-up/disconnected branches are used to start or disconnect motor；
High temperature early warning branch road includes the 4th contactor (T2), second time relay (SJ2), the 5th contactor (C5) and the 3rd
The time relay (SJ3)；The normally closed node of 4th contactor (T2) is vacant, the normally opened node of the 4th contactor (T2) and when second
Between relay (SJ2) main contacts one end connection, the master of the normally closed node of electrothermal relay (RJ) and the 5th contactor (C5) touches
One end connection of point, the main contacts of the other end of the main contacts of second time relay (SJ2) and the 5th contactor (C5) it is another
The one end of one end all with the coil of the 5th contactor (C5) is connected, the other end of the main contacts of second time relay (SJ2) and
The one end of the other end of the main contacts of 5th contactor (C5) all with the coil of the 3rd time relay (SJ3) is connected, hot relay
The normally closed node of device (RJ) is connected with one end of the coil of second time relay (SJ2), the coil of the 5th contactor (C5)
The other end, second time relay (SJ2) coil the other end and the 3rd time relay (SJ3) coil the other end
All it is connected with zero line side；The normally opened auxiliary contact of 5th contactor (C5) are connected with long-distance intelligent alarm unit；
Temperature monitoring module includes temperature sensor；When temperature sensor measures temperature and is higher than high temperature alarm temperature threshold, second
The coil adhesive of contactor (T1)；When temperature sensor measures temperature and is higher than high temperature early warning temperature threshold, the 4th contactor (T2)
Coil adhesive.
2. device as claimed in claim 1, it is characterised in that power supply show branch road connection include the 6th contactor (C2) and
Power supply indicator (L1)；The normally closed node of second contactor (T1) is connected with one end of the coil of the 6th contactor (C2), heat after
The normally closed node of electrical equipment (RJ) is connected with one end of the main contacts of the 6th contactor (C2), the main contacts of the 6th contactor (C2)
The other end is connected with the one end of power supply indicator (L1), the coil of the other end of power supply indicator (L1) and the 6th contactor (C2)
The other end be all connected with zero line side.
3. device as claimed in claim 2, it is characterised in that motor start-up/disconnected branches include stop button (TA), the
Seven contactors (C1), start button (QA) and motor running indicator lamp (L2)；One end of stop button (TA) connects with the 6th
The other end connection of the main contacts of tentaculum (C2), the other end of stop button (TA) are connected with one end of start button (QA), and
It is connected with one end of the main contacts of the 7th contactor (C1), the master of the other end of start button (QA) and the 7th contactor (C1) touches
The one end of the other end of point all with motor running indicator lamp (L2) is connected, and the other end of start button (QA) and the 7th contact
The one end of the other end of the main contacts of device (C1) all with the coil of the 7th contactor (C1) is connected, motor running indicator lamp (L2)
The other end and the other end of coil of the 7th contactor (C1) be all connected with zero line side.
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| CN201510561581.0A CN105158688B (en) | 2015-09-06 | 2015-09-06 | Electromechanical equipment fault location and alarm protecting apparatus |
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| CN201510561581.0A CN105158688B (en) | 2015-09-06 | 2015-09-06 | Electromechanical equipment fault location and alarm protecting apparatus |
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| CN105158688A CN105158688A (en) | 2015-12-16 |
| CN105158688B true CN105158688B (en) | 2018-01-12 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6690885B2 (en) * | 2017-02-27 | 2020-04-28 | 東芝三菱電機産業システム株式会社 | Control device |
| CN108551155A (en) * | 2018-06-28 | 2018-09-18 | 廖伟华 | A kind of drying machine electromechanics electric current warning device |
| CN112242691A (en) * | 2019-07-17 | 2021-01-19 | 中车长春轨道客车股份有限公司 | Temperature rise protector for motor |
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| CN105158688A (en) | 2015-12-16 |
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