CN105158688A - Dynamo-electric equipment fault positioning and alarm protective device - Google Patents
Dynamo-electric equipment fault positioning and alarm protective device Download PDFInfo
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- CN105158688A CN105158688A CN201510561581.0A CN201510561581A CN105158688A CN 105158688 A CN105158688 A CN 105158688A CN 201510561581 A CN201510561581 A CN 201510561581A CN 105158688 A CN105158688 A CN 105158688A
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Abstract
The invention discloses a dynamo-electric equipment fault positioning and alarm protective device, which aims to solve the problems that in the prior art, an electrothermal relay or other protective devices cannot guarantee the safe running of the dynamo-electric equipment and the fault reason of the dynamo-electric equipment cannot be conveniently known. The device includes a starting module for starting a motor or/and a mechanical device, a fault positioning and alarm protective module, and a temperature monitoring module; the fault positioning and alarm protective module for performing fault positioning after the temperature alarm signal transmitted by the temperature monitoring module is received, and controlling the starting module to protect the motor or/and the mechanical device in a power-off manner; and the temperature monitoring module for monitoring the housing temperature of the motor or/and the mechanical device, and transmitting the temperature alarm signals to the fault positioning and alarm protective module when the housing temperature of the motor or/and the mechanical device is higher than the set threshold. The device can remotely inform maintenance personnel the fault state, automatically stops the running of the dynamo-electric equipment, and prevents the dynamo-electric equipment from overheating and burning out.
Description
Technical field
The present invention relates to electrodynamic field, particularly relate to a kind of electromechanical equipment localization of fault and alarm protecting apparatus.
Background technology
Motor is a kind of equipment electric energy being converted to mechanical energy, and the principal element had the greatest impact to motor life is temperature, the temperature too high life-span that have impact on motor greatly.In prior art, the safety of motor in production run cannot be protected reliably.Motor is because of the factor such as overload overcurrent, open-phase running overcurrent, bearing wear, external air channel be not smooth, the fuselage cover caused is overheated, cause motor winding coil to burn and other component damage, bring the significant wastage on time, manpower and material to production economy.
Nowadays the resist technology measure of motor; all complete overload, open-phase protection by electrothermal relay and integrated protector for electric motor; technical equipment frequency converter more advanced in recent years is also generally applied, and plays protection motor overload, disconnected phase, decompression, the emergency protection such as under-voltage.In actual production, electrothermal relay, integrated protector for electric motor, frequency-variable controller all completely can not play the safety of protection motor reliably to operating motor.For the protection in the overload of motor and open-phase running; the problem of breaking down can only be stoppage protection motor after electrothermal relay action; if but when meeting electrothermal relay akinesia out of control; motor meeting continuous service is until damage equipment; and protect motor by electrothermal relay, cannot learn motor the very first time why reason is shut down when maintenance personal overhauls, and needs just can investigate thoroughly fault through multitasking program, fix a breakdown; cause servicing time long, affect working time.
Summary of the invention
The embodiment of the present invention provides a kind of electromechanical equipment localization of fault and alarm protecting apparatus, in order to solve in prior art the problem that there is the proterctive equipment such as electrothermal relay and cannot ensure electromechanical equipment safe operation and conveniently cannot learn electromechanical equipment failure cause.
The embodiment of the present invention provides a kind of electromechanical equipment localization of fault and alarm protecting apparatus, and this device comprises:
Start module 100, for actuating motor or/and plant equipment, localization of fault and alarm and protection module 110 and temperature monitoring module 120;
Localization of fault and alarm and protection module 110, for carrying out localization of fault after the heat alarm receiving temperature monitoring module 120 transmission, and control to start module 100 power-off protection motor or/and plant equipment;
Temperature monitoring module 120, for monitoring motor or/and the skin temperature of plant equipment, and at motor or/and the skin temperature of plant equipment sends heat alarm higher than during setting threshold value to localization of fault and alarm and protection module 110;
Wherein, module 100, localization of fault and alarm and protection module 110, temperature monitoring module 120 and motor end to end formation loop is successively started;
Start module 100 and comprise the first pair of switch (DK2), determine that one end that the first pair of switch (DK2) connects live wire is live wire end, determine that one end that the first pair of switch (DK2) connects zero line is zero line side;
Localization of fault and alarm and protection module 110 comprise 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 comprises electrothermal relay (RJ) and the first contactor (C3); Electrothermal relay (RJ) is connected with live wire end, the node of often opening of electrothermal relay (RJ) is connected with coil one end of the first contactor (C3), the coil other end of the first contactor (C3) is connected with zero line side, main contacts one end of first contactor (C3) is connected with live wire end, and the other end is connected with the node of often opening of electrothermal relay (RJ); The normally closed node of electrothermal relay (RJ) is connected with high temperature alarm branch road, and is connected with high temperature early warning branch road; The auxiliary contact of often opening of the first contactor (C3) are connected with long-distance intelligent alarm unit;
High temperature alarm branch road comprises the second contactor (T1), very first time relay (SJ1) and the 3rd contactor (C4), normally closed node and the power supply of the second contactor (T1) show branch road and are connected, and power supply display branch road is connected with motor start-up/disconnected branches, the node of often opening of the second contactor (T1) is connected with one end of the main contacts of very first time relay (SJ1), the normally closed node of electrothermal relay (RJ) is connected with one end of the main contacts of the 3rd contactor (C4), the other end of the main contacts of very first time relay (SJ1) is all connected with one end of the coil of the 3rd contactor (C4) with the other end of the main contacts of the 3rd contactor (C4), the normally closed node of electrothermal relay (RJ) is connected with one end of the coil of very first time relay (SJ1), the other end of the coil of the 3rd contactor (C4) is all connected with zero line side with the other end of the coil of very first time relay (SJ1), the auxiliary contact of often opening of the 3rd contactor (C4) are connected with long-distance intelligent alarm unit, power supply display branch road is for showing the power on/off state of dynamo-electric equipment failure location and alarm protecting apparatus, and motor start-up/disconnected branches is used for starting or disconnecting motor,
High temperature early warning branch road comprises the 4th contactor (T2), second time relay (SJ2), the 5th contactor (C5) and the 3rd time relay (SJ3); the normally closed node of the 4th contactor (T2) is vacant, the node of often opening of the 4th contactor (T2) is connected with one end of the main contacts of second time relay (SJ2), the normally closed node of electrothermal relay (RJ) is connected with one end of the main contacts of the 5th contactor (C5), the other end of the main contacts of second time relay (SJ2) is all connected with one end of the coil of the 5th contactor (C5) with the other end of the main contacts of the 5th contactor (C5), the other end of the main contacts of second time relay (SJ2) is all connected with one end of the coil of the 3rd time relay (SJ3) with the other end of the main contacts of the 5th contactor (C5), the normally closed node of electrothermal relay (RJ) is connected with one end of the coil of second time relay (SJ2), the other end of the coil of the 5th contactor (C5), the other end of the other end of the coil of second time relay (SJ2) and the coil of the 3rd time relay (SJ3) is all connected with zero line side, the auxiliary contact of often opening of the 5th contactor (C5) are connected with long-distance intelligent alarm unit,
Temperature monitoring module 120 comprises temperature sensor; When temperature sensor records temperature higher than high temperature alarm temperature threshold, the coil adhesive of the second contactor (T1); When temperature sensor records temperature higher than high temperature early warning temperature threshold, the coil adhesive of the 4th contactor (T2).
Beneficial effect of the present invention comprises: the perfect multiple protective of electromechanical equipment from electric current to temperature.Only by electrothermal relay, electromechanical equipment is protected in prior art, when electrothermal relay akinesia out of control, the damage of electromechanical equipment will be caused, and the device that the embodiment of the present invention provides not only can when current overload timely stoppage protection motor, and after failure, the very first time is by information-based alarm, maintenance personal just can know failure cause, in time on site fault clearing, thus decrease servicing time, improve work efficiency, solve because of overload, open-phase running is out of control, the protection problem to motor is solved by the method for detected temperatures, avoid the economic loss because motor damages causes, reduce the maintenance difficulty of service worker, after the device that the embodiment of the present invention provides opens running, if under having the not in place or unattended situation of operated by personnel, still motor can be protected not damaged.
Accompanying drawing explanation
The structural representation that Fig. 1 is the electromechanical equipment localization of fault that provides in the embodiment of the present invention and alarm protecting apparatus;
The circuit structure diagram that Fig. 2 is the electromechanical equipment localization of fault that provides in the embodiment of the present invention and alarm protecting apparatus;
Fig. 3 is the circuit connection diagram of embodiment of the present invention medium-long range intelligent alarm unit.
Embodiment
The implementation of thermal overload protection is crossed in order to provide the high electromechanical equipment of a kind of reliability; embodiments provide a kind of electromechanical equipment localization of fault and alarm protecting apparatus; below in conjunction with Figure of description, the preferred embodiments of the present invention are described; be to be understood that; preferred embodiment described herein, only for instruction and explanation of the present invention, is not intended to limit the present invention.And when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Prior art carries out overload protection by electrothermal relay to motor, but motor occurs that the reason of burning has a lot, such as overload overcurrent, open-phase running overcurrent, bearing wear or external air channel are not smooth etc., these reasons all can cause motor fuselage cover temperature to raise, cause motor winding coil to burn or the problem of other component damage, bring the significant wastage in time, manpower and materials to production economy; And motor is in operation, when there is equipment failure, maintenance personal cannot learn in the very first time usually, by the time on-the-spot again can not be clear and definite in time judgement failure cause, determine that failure cause needs again the time of at substantial, therefore investigate thoroughly that failure cause is to fixing a breakdown period, motor all cannot normally run, and causes extreme loss to production.In actual production; find that the protective effect played operating motor at summary electrothermal relay, integrated protector for electric motor or frequency-variable controller is all limited; and burn motor and all have direct relation with fuselage cover temperature; therefore; the embodiment of the present invention will provide a kind of scheme from integrated protection induction-motor load electric current and fuselage cover temperature, realizes the reliable high performance remote information alarming and managing protection of motor.
Consult shown in Fig. 1, Fig. 2 and Fig. 3, the embodiment of the present invention provides a kind of electromechanical equipment localization of fault and alarm protecting apparatus, this device comprises: start module 100, for actuating motor or/and plant equipment, localization of fault and alarm and protection module 110 and temperature monitoring module 120; Localization of fault and alarm and protection module 110, for carrying out localization of fault after the heat alarm receiving temperature monitoring module 120 transmission, and control to start module 100 power-off protection motor or/and plant equipment; Temperature monitoring module 120, for monitoring motor or/and the skin temperature of plant equipment, and at motor or/and the skin temperature of plant equipment sends heat alarm higher than during setting threshold value to localization of fault and alarm and protection module 110.
Wherein, module 100, localization of fault and alarm and protection module 110, temperature monitoring module 120 and motor end to end formation loop is successively started; Consult shown in Fig. 2, the contactor box indicating in Fig. 2 be the coil of contactor, the contactor represented with two short parallel lines is the main contacts of contactor; Consult shown in Fig. 3, what represent with two short parallel lines in Fig. 3 often drives auxiliary contact for contactor, and what interrupt that two short parallel lines symbols represent with a line segment is normally closed auxiliary contact.Start module 100 and comprise the first pair of switch (DK2), determine that one end that the first pair of switch (DK2) connects live wire is live wire end, determine that one end that the first pair of switch (DK2) connects zero line is zero line side; Start module 100 and also comprise three switches (DK1), three switches (DK1) are connected on live wire, as the master switch of whole device, first pair of switch (DK2) is just connected to the live wire at three switch (DK1) places.
Consult shown in Fig. 2, the normally closed node of the electrothermal relay (RJ) below mentioned, the second contactor (T1) and the 4th contactor (T2), is all the node connected in Fig. 2, often opens node and be all the node do not connected in Fig. 2.Localization of fault and alarm and protection module 110 comprise 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 system, can connect time, long-range give arrange sending short message by mobile phone or call.Current overload alarm branch road comprises electrothermal relay (RJ) and the first contactor (C3); Electrothermal relay (RJ) is connected with live wire end, the node of often opening of electrothermal relay (RJ) is connected with coil one end of the first contactor (C3), the coil other end of the first contactor (C3) is connected with zero line side, main contacts one end of first contactor (C3) is connected with live wire end, and the other end is connected with the node of often opening of electrothermal relay (RJ); The normally closed node of electrothermal relay (RJ) is connected with high temperature alarm branch road, and is connected with high temperature early warning branch road; The auxiliary contact of often opening of the first contactor (C3) are connected with long-distance intelligent alarm unit.
High temperature alarm branch road comprises the second contactor (T1), very first time relay (SJ1) and the 3rd contactor (C4), normally closed node and the power supply of the second contactor (T1) show branch road and are connected, and power supply display branch road is connected with motor start-up/disconnected branches, the node of often opening of the second contactor (T1) is connected with one end of the main contacts of very first time relay (SJ1), the normally closed node of electrothermal relay (RJ) is connected with one end of the main contacts of the 3rd contactor (C4), the other end of the main contacts of very first time relay (SJ1) is all connected with one end of the coil of the 3rd contactor (C4) with the other end of the main contacts of the 3rd contactor (C4), the normally closed node of electrothermal relay (RJ) is connected with one end of the coil of very first time relay (SJ1), the other end of the coil of the 3rd contactor (C4) is all connected with zero line side with the other end of the coil of very first time relay (SJ1), the auxiliary contact of often opening of the 3rd contactor (C4) are connected with long-distance intelligent alarm unit.
Power supply display branch road is for showing the power on/off state of dynamo-electric equipment failure location and alarm protecting apparatus, and motor start-up/disconnected branches is used for starting or disconnecting motor; High temperature early warning branch road comprises the 4th contactor (T2), second time relay (SJ2), the 5th contactor (C5) and the 3rd time relay (SJ3); the normally closed node of the 4th contactor (T2) is vacant, the node of often opening of the 4th contactor (T2) is connected with one end of the main contacts of second time relay (SJ2), the normally closed node of electrothermal relay (RJ) is connected with one end of the main contacts of the 5th contactor (C5), the other end of the main contacts of second time relay (SJ2) is all connected with one end of the coil of the 5th contactor (C5) with the other end of the main contacts of the 5th contactor (C5), the other end of the main contacts of second time relay (SJ2) is all connected with one end of the coil of the 3rd time relay (SJ3) with the other end of the main contacts of the 5th contactor (C5), the normally closed node of electrothermal relay (RJ) is connected with one end of the coil of second time relay (SJ2), the other end of the coil of the 5th contactor (C5), the other end of the other end of the coil of second time relay (SJ2) and the coil of the 3rd time relay (SJ3) is all connected with zero line side, the auxiliary contact of often opening of the 5th contactor (C5) are connected with long-distance intelligent alarm unit, temperature monitoring module 120 comprises temperature sensor, when temperature sensor records temperature higher than high temperature alarm temperature threshold, the coil adhesive of the second contactor (T1), when temperature sensor records temperature higher than high temperature early warning temperature threshold, the coil adhesive of the 4th contactor (T2).
Concrete, power supply display branch road connects and comprises the 6th contactor (C2) and power light (L1); The normally closed node of the second contactor (T1) is connected with one end of the coil of the 6th contactor (C2), the normally closed node of electrothermal relay (RJ) is connected with one end of the main contacts of the 6th contactor (C2), the other end of the main contacts of the 6th contactor (C2) is connected with one end of power light (L1), and the other end of power light (L1) is all connected with zero line side with the other end of the coil of the 6th contactor (C2); Normally closed auxiliary contact one end of 6th contactor (C2) has with the first contactor (C3), the 3rd contactor (C4) and the 5th contactor (C5) and is connected, and the normally closed auxiliary contact other end of the 6th contactor (C2) is connected with long-distance intelligent alarm unit.When the coil adhesive of the 6th contactor (C2), play the effect of opening long-distance intelligent alarm unit.
Motor start-up/disconnected branches comprises stop button (TA), the 7th contactor (C1), start button (QA) and motor running pilot lamp (L2), one end of stop button (TA) is connected with the other end of the main contacts of the 6th contactor (C2), the other end of stop button (TA) is connected with one end of start button (QA), and be connected with one end of the main contacts of the 7th contactor (C1), the other end of start button (QA) is all connected with one end of motor running pilot lamp (L2) with the other end of the main contacts of the 7th contactor (C1), and the other end of start button (QA) is all connected with one end of the coil of the 7th contactor (C1) with the other end of the main contacts of the 7th contactor (C1), the other end of motor running pilot lamp (L2) is all connected with zero line side with the other end of the coil of the 7th contactor (C1).
Below in conjunction with accompanying drawing, with specific embodiment, device provided by the invention is described in detail.
When starting dynamo-electric equipment failure location and alarm protecting apparatus, first three switches (DK1) are connected, whole secondary circuit passes through the first pair of switch (DK2) as safe and reliable break-make, connect the second pair of switch (DK3), temperature monitoring module is energized, now, electrothermal relay (RJ), second contactor (T1) and the 4th contactor (T2) obtain electricity, the coil electricity of the 6th contactor (C2), iron core adhesive action, now the main contacts of the 6th contactor (C2) starts to secondary circuit one and control power supply, power light (L1) is bright, be used to indicate whole device to power on, simultaneously, the coil of very first time relay (SJ1) and second time relay (SJ2) also obtains electric adhesive, very first time relay (SJ1) now and second time relay (SJ2) have carried out preliminary preparation for transmission information.
The principle of work of electrothermal relay is by the current generates heat flowing into thermal element; make the bimetallic strip generation deformation of different expansion coefficient; when deformation reaches certain distance; just promote connecting rod action; control circuit is disconnected; thus making contactor dead electricity, main circuit disconnects, and realizes the overload protection of motor.Relay is as the overload protection element of motor, little with its volume, and structure is simple, low cost and other advantages is widely applied aborning.
Restarting power supply given normal time, press start button (QA), the coil of the 7th contactor (C1) obtains electric adhesive, during direct connection motor, motor powers on standby, if connect motor by frequency converter, frequency converter and motor all power on standby, in motor operation course, if load current is too high, electrothermal relay (RJ) action, normally closed node disconnects, motor is out of service, simultaneously, the node of often opening of electrothermal relay (RJ) is connected, the coil of the first contactor (C3) obtains electronic work, the signal power source often driving auxiliary contact of the first contactor (C3) is connected, cell phone network signal is connected, start to send warning message to the phone number set in advance, call prompting, simultaneously, emergency light on electromechanical equipment localization of fault and alarm protecting apparatus lights, wait for that maintenance personal is on site fault clearing, maintenance personal does not arrive the on-the-spot reason namely learning motor fault by SMS.
Equally in motor operation course or the motor operation course that started by frequency converter, motor raises because various failure cause causes motor casing temperature, now may cause twice warning, when the temperature sensor that first time contacts with motor casing records temperature higher than high temperature early warning temperature threshold, the coil adhesive of the 4th contactor (T2), usual high temperature early warning temperature threshold is set to 70 degrees Celsius, 4th contactor (T2) often open after node switches on power, the coil of the 5th contactor (C5) obtains the rear adhesive of electricity, the auxiliary contact of often opening of the 5th contactor (C5) switch on power, signal is sent on the mobile phone of setting in advance by trigger remote intelligent alarm unit, notify that maintenance personal arrives on site fault clearing, simultaneously, the coil of the 3rd time relay (SJ3) also obtains electric adhesive, after the time arrival of the 3rd time relay (SJ3), the normally closed auxiliary contact of the 3rd time relay (SJ3) is opened.
When high temperature early warning status alert is after lasting 15 minutes, mobile phone is deployed troops on garrison duty signal automatic guard setup again, if maintenance personal does not arrive on-the-spot investigation, motor continues to run at 70 celsius temperatures, if motor casing temperature continues to raise, during the alarm temperature threshold value that reaches a high temperature, be about set to 85 degrees Celsius, the coil of the second contactor (T1) obtains electric adhesive; The normal battle of the second contactor (T1) switches on power, the coil of the 3rd contactor (C4) obtains electric adhesive, the auxiliary contact energising trigger remote intelligent alarm unit of often opening of the 3rd contactor (C4) transmits on the mobile phone of maintenance personal, notifies that maintenance personal arrives on site fault clearing again.
Foregoing circuit annexation is applied on motor, same, also temperature monitoring module 120 can be applied in the shell of plant equipment, at plant equipment adstante febre, give warning in advance, and high temperature alarm.Also can add one group of same structure, monitor the operation of plant equipment and motor simultaneously, make plant equipment and motor all can not cause because of operation troubles heating the accident burnt.
Localization of fault and alarm and protection module 110 are integrated in a cabinet; cabinet outer setting has malfunction indicator lamp; connect corresponding contactor auxiliary contact respectively to power to malfunction indicator lamp; can show outside cabinet; make maintenance personal once can failure cause be learnt to scene, get rid of maintenance as early as possible.
In sum, the scheme that the embodiment of the present invention provides, the perfect multiple protective of electromechanical equipment from electric current to temperature.Only by electrothermal relay, electromechanical equipment is protected in prior art, when electrothermal relay akinesia out of control, the damage of electromechanical equipment will be caused, and the device that the embodiment of the present invention provides not only can when current overload timely stoppage protection motor, and after failure, the very first time is by information-based alarm, maintenance personal just can know failure cause, in time on site fault clearing, thus decrease servicing time, improve work efficiency, solve because of overload, open-phase running is out of control, the protection problem to motor is solved by the method for detected temperatures, avoid the economic loss because motor damages causes, reduce the maintenance difficulty of service worker, after the device that the embodiment of the present invention provides opens running, if under having the not in place or unattended situation of operated by personnel, still motor can be protected not damaged.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (3)
1. electromechanical equipment localization of fault and an alarm protecting apparatus, is characterized in that, described device comprises:
Start module, for actuating motor or/and plant equipment, localization of fault and alarm and protection module and temperature monitoring module;
Localization of fault and alarm and protection module, for carrying out localization of fault after the heat alarm receiving temperature monitoring module transmission, and control to start module power-down protection motor or/and plant equipment;
Temperature monitoring module, for monitoring motor or/and the skin temperature of plant equipment, and at motor or/and the skin temperature of plant equipment sends heat alarm higher than during setting threshold value to localization of fault and alarm and protection module;
Wherein, module, localization of fault and alarm and protection module, temperature monitoring module and motor end to end formation loop is successively started;
Start module and comprise the first pair of switch (DK2), determine that one end that the first pair of switch (DK2) connects live wire is live wire end, determine that one end that the first pair of switch (DK2) connects zero line is zero line side;
Localization of fault and alarm and protection module comprise 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 comprises electrothermal relay (RJ) and the first contactor (C3); Electrothermal relay (RJ) is connected with live wire end, the node of often opening of electrothermal relay (RJ) is connected with coil one end of the first contactor (C3), the coil other end of the first contactor (C3) is connected with zero line side, main contacts one end of first contactor (C3) is connected with live wire end, and the other end is connected with the node of often opening of electrothermal relay (RJ); The normally closed node of electrothermal relay (RJ) is connected with high temperature alarm branch road, and is connected with high temperature early warning branch road; The auxiliary contact of often opening of the first contactor (C3) are connected with long-distance intelligent alarm unit;
High temperature alarm branch road comprises the second contactor (T1), very first time relay (SJ1) and the 3rd contactor (C4), normally closed node and the power supply of the second contactor (T1) show branch road and are connected, and power supply display branch road is connected with motor start-up/disconnected branches, the node of often opening of the second contactor (T1) is connected with one end of the main contacts of very first time relay (SJ1), the normally closed node of electrothermal relay (RJ) is connected with one end of the main contacts of the 3rd contactor (C4), the other end of the main contacts of very first time relay (SJ1) is all connected with one end of the coil of the 3rd contactor (C4) with the other end of the main contacts of the 3rd contactor (C4), the normally closed node of electrothermal relay (RJ) is connected with one end of the coil of very first time relay (SJ1), the other end of the coil of the 3rd contactor (C4) is all connected with zero line side with the other end of the coil of very first time relay (SJ1), the auxiliary contact of often opening of the 3rd contactor (C4) are connected with long-distance intelligent alarm unit, power supply display branch road is for showing the power on/off state of dynamo-electric equipment failure location and alarm protecting apparatus, and motor start-up/disconnected branches is used for starting or disconnecting motor,
High temperature early warning branch road comprises the 4th contactor (T2), second time relay (SJ2), the 5th contactor (C5) and the 3rd time relay (SJ3); the normally closed node of the 4th contactor (T2) is vacant, the node of often opening of the 4th contactor (T2) is connected with one end of the main contacts of second time relay (SJ2), the normally closed node of electrothermal relay (RJ) is connected with one end of the main contacts of the 5th contactor (C5), the other end of the main contacts of second time relay (SJ2) is all connected with one end of the coil of the 5th contactor (C5) with the other end of the main contacts of the 5th contactor (C5), the other end of the main contacts of second time relay (SJ2) is all connected with one end of the coil of the 3rd time relay (SJ3) with the other end of the main contacts of the 5th contactor (C5), the normally closed node of electrothermal relay (RJ) is connected with one end of the coil of second time relay (SJ2), the other end of the coil of the 5th contactor (C5), the other end of the other end of the coil of second time relay (SJ2) and the coil of the 3rd time relay (SJ3) is all connected with zero line side, the auxiliary contact of often opening of the 5th contactor (C5) are connected with long-distance intelligent alarm unit,
Temperature monitoring module comprises temperature sensor; When temperature sensor records temperature higher than high temperature alarm temperature threshold, the coil adhesive of the second contactor (T1); When temperature sensor records temperature higher than high temperature early warning temperature threshold, the coil adhesive of the 4th contactor (T2).
2. device as claimed in claim 1, is characterized in that, power supply display branch road connects and comprises the 6th contactor (C2) and power light (L1); The normally closed node of the second contactor (T1) is connected with one end of the coil of the 6th contactor (C2), the normally closed node of electrothermal relay (RJ) is connected with one end of the main contacts of the 6th contactor (C2), the other end of the main contacts of the 6th contactor (C2) is connected with one end of power light (L1), and the other end of power light (L1) is all connected with zero line side with the other end of the coil of the 6th contactor (C2).
3. device as claimed in claim 2, it is characterized in that, motor start-up/disconnected branches comprises stop button (TA), the 7th contactor (C1), start button (QA) and motor running pilot lamp (L2), one end of stop button (TA) is connected with the other end of the main contacts of the 6th contactor (C2), the other end of stop button (TA) is connected with one end of start button (QA), and be connected with one end of the main contacts of the 7th contactor (C1), the other end of start button (QA) is all connected with one end of motor running pilot lamp (L2) with the other end of the main contacts of the 7th contactor (C1), and the other end of start button (QA) is all connected with one end of the coil of the 7th contactor (C1) with the other end of the main contacts of the 7th contactor (C1), the other end of motor running pilot lamp (L2) is all connected with zero line side with the other end of the coil of the 7th contactor (C1).
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| Application Number | Priority Date | Filing Date | Title |
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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 true CN105158688A (en) | 2015-12-16 |
| CN105158688B CN105158688B (en) | 2018-01-12 |
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| CN201510561581.0A Expired - Fee Related CN105158688B (en) | 2015-09-06 | 2015-09-06 | Electromechanical equipment fault location and alarm protecting apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108551155A (en) * | 2018-06-28 | 2018-09-18 | 廖伟华 | A kind of drying machine electromechanics electric current warning device |
| CN110326194A (en) * | 2017-02-27 | 2019-10-11 | 东芝三菱电机产业系统株式会社 | Control 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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| 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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| Publication number | Publication date |
|---|---|
| CN105158688B (en) | 2018-01-12 |
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