CN106159902B - A kind of insulation detection device and method for direct current generator - Google Patents
A kind of insulation detection device and method for direct current generator Download PDFInfo
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- CN106159902B CN106159902B CN201510141954.9A CN201510141954A CN106159902B CN 106159902 B CN106159902 B CN 106159902B CN 201510141954 A CN201510141954 A CN 201510141954A CN 106159902 B CN106159902 B CN 106159902B
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Abstract
The present invention relates to a kind of insulation detection devices and method for direct current generator, including direct-current driving device, output DC master row, ground detection device, logic controller, man-machine interface, direct-current driving device is connect by exporting DC master row with motor, ground detection device is connect with output DC master row, ground detection device is connect with logic controller, logic controller is connect with direct-current driving device, and man-machine interface is connected with logic controller.Ground detection device detects the real-time insulation against ground resistance value in armature circuit, and output signal is sent to logic controller, and logic controller send alarm value signal to man-machine interface and indicator light, and professional technician is prompted to check；Failure value signal is sent to direct-current driving device, after direct-current driving device detects the fault-signal of logic controller, cuts off major loop, motor enters standby mode.Advantage is：The safety in operation for improving large-sized DC main motor prevents substantial equipment accident.
Description
Technical field
The present invention relates to a kind of insulation detection device for direct current generator and methods more particularly to a kind of armature to return
The measurement protective device on road.
Background technology
Large-scale dc motor is domestic at present to also have wide range application due to its good speed adjusting performance and overload performance,
Especially large-scale Metallurgical Enterprise.Since direct current generator needs special ventilation air duct to be cooled down for motor, once air duct intakes, or
Due to other reasons, lead to armature insulation against ground reduction, at this time such as cannot timely trip protection, insulation, which continues to deteriorate, will lead to electricity
Machine well damage causes to stop production on a large scale.
Currently, domestic Hefei Inst. of Plasma Physics, Chinese Academy of Sciences prospectus, armature of direct current motor winding insulation
Detection and earthing protecting method need oscillograph cooperation, can be detected in non-stop-machine realization, but oscillograph is not
Conducive to execute-in-place, work on the spot environment needs are cannot be satisfied.
Invention content
In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a kind of insulation detection devices for direct current generator
And method, when insulation reduces to a certain extent in armature of direct current motor circuit, cut off major loop, protection main motor armature circuit fortune
Row safety.
To achieve the above object, the invention is realized by the following technical scheme：
A kind of insulation detection device for direct current generator, including direct-current driving device, output DC master row, earthing detection
Device, logic controller, man-machine interface, direct-current driving device are connect by exporting DC master row with motor, ground detection device
It being connect with output DC master row, ground detection device is connect with logic controller, and logic controller is connect with direct-current driving device,
Man-machine interface is connected with logic controller.
The ground detection device is Bender IRDH265-4.
It is connected with coupler between the ground detection device and output DC master row, to by armature circuit
High pressure decompression is voltage needed for ground detection device.
A kind of insulation detecting method for direct current generator, ground detection device detect armature circuit in real time over the ground
Insulation resistance value, and output signal is sent to logic controller, logic controller send alarm value signal to man-machine interface and indicator light,
Professional technician is prompted to check；Failure value signal is sent to direct-current driving device, direct-current driving device detects logic control
After the fault-signal of device, major loop is cut off, motor enters standby mode.
Ground detection device is by the alarming value and fault value of setting, by two auxiliary contacts inside ground detection device
It is corresponding with alarming value and fault value：When insulation resistance value reaches alarming value, logic controller is shown by man-machine interface and is alarmed
Information prompts professional technician to check, does not shut down at this time；When insulation resistance value reaches fault value, logic controller is by signal
It send to direct-current driving device, blocks trigger pulse and driver is enabled, cut off the current supply circuit of armature, shut down at this time.
Compared with prior art, the beneficial effects of the invention are as follows：
Detect armature circuit insulation against ground resistance value in real time by ground detection device, and when resistance value is low and Times
It is alert, and motor operation can be stopped in time, the safety in operation of large-sized DC main motor is improved, production efficiency is improved, is prevented
Substantial equipment accident.Direct-current driving device is controlled by logic controller, so that motor is shut down in time, it is ensured that equipment safety.It is man-machine
Interface can intuitively provide warning message.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Specific implementation mode
The present invention is described in detail with reference to the accompanying drawings of the specification, it should be noted that the implementation of the present invention is unlimited
In the following embodiments and the accompanying drawings.
See Fig. 1, a kind of insulation detection device for direct current generator, including direct-current driving device, output DC master row, connect
Ground detection device, logic controller, man-machine interface, direct-current driving device are connect by exporting DC master row with motor, ground connection inspection
It surveys device to connect with output DC master row, ground detection device is connect with logic controller, and logic controller is filled with DC driven
Connection is set, man-machine interface is connected with logic controller.
The ground detection device is Bender IRDH265-4.
It is connected with coupler between the ground detection device and output DC master row, to by armature circuit
High pressure decompression is voltage needed for ground detection device.
For the insulation detecting method of direct current generator, ground detection device detects the real-time insulation against ground in armature circuit
Resistance value, and output signal is sent to logic controller, alarm value signal is sent to man-machine interface and indicator light, is prompted by logic controller
Professional technician checks；Failure value signal is sent to direct-current driving device, direct-current driving device detects logic controller
After fault-signal, major loop is cut off, motor enters standby mode.
Ground detection device is by the alarming value and fault value of setting, by two auxiliary contacts inside ground detection device
It is corresponding with alarming value and fault value：When insulation resistance value reaches alarming value, logic controller is shown by man-machine interface and is alarmed
Information prompts professional technician to check, does not shut down at this time；When insulation resistance value reaches fault value, logic controller is by signal
It send to direct-current driving device, blocks trigger pulse and driver is enabled, cut off the current supply circuit of armature, shut down at this time.
See Fig. 1, in the armature circuit of direct current generator, accesses high-voltage coupler, it is therefore an objective to direct-current main motor armature be made to return
High pressure (general 900V) decompression on road is voltage needed for ground detection device.It is real-time by ground detection device detection armature circuit
Insulation against ground resistance value is connect two auxiliary inside device by the alarming value and fault value being arranged inside ground detection device
Point corresponds.When insulation resistance value reaches alarming value, 11,12 auxiliary contacts disconnect, and logic controller will be in man-machine interface
Upper display alarm information prompts professional technician to check, but does not shut down；When insulation resistance value reaches fault value, 21,22 auxiliary
Contact disconnects, and logic controller send signal to direct-current driving device, blocks trigger pulse in time and driver is enabled, cut-out electricity
The current supply circuit of armature, system-down.
The present invention detects insulation against ground resistance value in armature circuit by ground detection device in real time, and when resistance value is low and
Alarm, and motor operation can be stopped in time, the safety in operation of large-sized DC main motor is improved, production efficiency is improved,
Prevent substantial equipment accident.
Claims (2)
1. a kind of insulation detecting method for direct current generator realizes that the insulation detection device of this method includes DC driven dress
It sets, export DC master row, ground detection device, logic controller, man-machine interface, direct-current driving device is by exporting DC master row
It is connect with motor, ground detection device is connect with output DC master row, and ground detection device is connect with logic controller, logic control
Device processed is connect with direct-current driving device, and man-machine interface is connected with logic controller, it is characterised in that：
Ground detection device detects the real-time insulation against ground resistance value in armature circuit, and output signal is sent to logic controller,
Logic controller send alarm value signal to man-machine interface and indicator light, and professional technician is prompted to check；By failure value signal
It send to direct-current driving device, after direct-current driving device detects the fault-signal of logic controller, cuts off major loop, motor enters
Standby mode.
2. a kind of insulation detecting method for direct current generator according to claim 1, which is characterized in that earthing detection fills
The alarming value and fault value by setting are set, by two auxiliary contacts and alarming value and fault value phase inside ground detection device
It is corresponding：When insulation resistance value reaches alarming value, logic controller prompts professional technique people by man-machine interface display alarm information
Member checks, does not shut down at this time；When insulation resistance value reaches fault value, logic controller send signal to direct-current driving device, envelope
It locks trigger pulse and driver is enabled, cut off the current supply circuit of armature, shut down at this time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510141954.9A CN106159902B (en) | 2015-03-28 | 2015-03-28 | A kind of insulation detection device and method for direct current generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510141954.9A CN106159902B (en) | 2015-03-28 | 2015-03-28 | A kind of insulation detection device and method for direct current generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106159902A CN106159902A (en) | 2016-11-23 |
| CN106159902B true CN106159902B (en) | 2018-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510141954.9A Active CN106159902B (en) | 2015-03-28 | 2015-03-28 | A kind of insulation detection device and method for direct current generator |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1210268A (en) * | 1998-04-23 | 1999-03-10 | 中国科学院等离子体物理研究所 | Method for insulation inspecting and ground protecting for windings of D. C. motor armature |
| CN202197091U (en) * | 2011-08-25 | 2012-04-18 | 大连美恒时代科技有限公司 | Digital motor comprehensive protector |
| CN203299319U (en) * | 2013-06-21 | 2013-11-20 | 株洲中车电力机车配件有限公司 | Locomotive insulation detection device |
-
2015
- 2015-03-28 CN CN201510141954.9A patent/CN106159902B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1210268A (en) * | 1998-04-23 | 1999-03-10 | 中国科学院等离子体物理研究所 | Method for insulation inspecting and ground protecting for windings of D. C. motor armature |
| CN202197091U (en) * | 2011-08-25 | 2012-04-18 | 大连美恒时代科技有限公司 | Digital motor comprehensive protector |
| CN203299319U (en) * | 2013-06-21 | 2013-11-20 | 株洲中车电力机车配件有限公司 | Locomotive insulation detection device |
Non-Patent Citations (1)
| Title |
|---|
| 直流电机电枢绕组绝缘的在线检测方法;许成金;《大电机技术》;20010329(第2期);19-21 * |
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| CN106159902A (en) | 2016-11-23 |
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