CN106159902A - A kind of insulation detection device for direct current generator and method - Google Patents
A kind of insulation detection device for direct current generator and method Download PDFInfo
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- CN106159902A CN106159902A CN201510141954.9A CN201510141954A CN106159902A CN 106159902 A CN106159902 A CN 106159902A CN 201510141954 A CN201510141954 A CN 201510141954A CN 106159902 A CN106159902 A CN 106159902A
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Abstract
The present invention relates to a kind of insulation detection device for direct current generator and method, including direct-current driving device, output DC master row, ground detection device, logic controller, man machine interface, direct-current driving device is connected with motor by output DC master row, ground detection device is connected with output DC master row, ground detection device is connected with logic controller, logic controller is connected with direct-current driving device, and man machine interface is connected with logic controller.Ground detection device detects the insulation against ground resistance that armature loop is real-time, and output signal delivers to logic controller, and alarming value signal is delivered to man machine interface and display lamp by logic controller, and prompting professional and technical personnel checks；Fault value signal being delivered to direct-current driving device, after direct-current driving device detects the fault-signal of logic controller, cuts off major loop, motor enters holding state.Advantage is: improve the safety in operation of large-sized DC mair motor, stops substantial equipment accident.
Description
Technical field
The present invention relates to a kind of insulation detection device for direct current generator and method, particularly relate to a kind of armature loop
Measure protection device.
Background technology
Large-scale dc motor due to its good speed adjusting performance and overload performance, the most domestic also have apply in a big way, especially
It it is large-scale Metallurgical Enterprise.Owing to direct current generator needs special ventilation air duct to cool down for motor, once air channel water inlet, or by
In other reasons, cause armature insulation against ground to reduce, now as can not trip protection in time, insulation continues deterioration will cause electricity
Machine well damage, causes extensive stopping production.
At present, domestic Hefei Inst. of Plasma Physics, Chinese Academy of Sciences prospectus, armature of direct current motor winding insulation detects
And earthing protecting method, it is desirable to have oscillograph coordinates, and can realize detection, but oscillograph is unfavorable in the case of non-stop-machine
In execute-in-place, it is impossible to meet work on the spot need for environment.
Summary of the invention
For overcoming the deficiencies in the prior art, it is an object of the invention to provide a kind of insulation detection device for direct current generator and side
Method, when the insulation of armature of direct current motor loop is reduced to a certain degree, cuts off major loop, and protection mair motor armature circuit runs
Safety.
For achieving the above object, the present invention is achieved through the following technical solutions:
A kind of insulation detection device for direct current generator, including direct-current driving device, output DC master row, earthing detection dress
Put, logic controller, man machine interface, direct-current driving device by output DC master row be connected with motor, ground detection device
Being connected with output DC master row, ground detection device is connected with logic controller, and logic controller is connected with direct-current driving device,
Man machine interface is connected with logic controller.
Described ground detection device is Bender IRDH265-4.
It is connected between described ground detection device with output DC master row and has bonder, in order to the high pressure by armature loop
Blood pressure lowering is ground detection device required voltage.
A kind of insulation detecting method for direct current generator, the insulation against ground that ground detection device detection armature loop is real-time
Resistance, and output signal delivers to logic controller, alarming value signal is delivered to man machine interface and display lamp by logic controller, carries
Show that professional and technical personnel checks；Fault value signal is delivered to direct-current driving device, and direct-current driving device detects logic controller
Fault-signal after, cut off major loop, motor enter holding state.
Ground detection device is by the alarming value arranged and fault value, by two auxiliary contacts within ground detection device and report
Alert value is corresponding with fault value: when insulation resistance value reaches alarming value, and logic controller passes through man machine interface display alarm information,
Prompting professional and technical personnel checks, does not shuts down；When insulation resistance value reaches fault value, signal is delivered to by logic controller
Direct-current driving device, block triggers pulse and driver enables, and cuts off the current supply circuit of armature, now shuts down.
Compared with prior art, the invention has the beneficial effects as follows:
Armature loop insulation against ground resistance is detected in real time by ground detection device, and when resistance is low and alarm, and
Motor can be stopped in time running, improve the safety in operation of large-sized DC mair motor, improve production efficiency, stop great
Equipment breakdown.Control direct-current driving device by logic controller, make motor shut down in time, it is ensured that equipment safety.Man-machine boundary
Face can intuitively provide warning message.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention is described in detail, it should be noted that the enforcement of the present invention be not limited to
Under embodiment.
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 is connected with motor by output DC master row, ground connection
Detection device is connected with output DC master row, and ground detection device is connected with logic controller, logic controller and DC driven
Device connects, and man machine interface is connected with logic controller.
Described ground detection device is Bender IRDH265-4.
It is connected between described ground detection device with output DC master row and has bonder, in order to the high pressure by armature loop
Blood pressure lowering is ground detection device required voltage.
For the insulation detecting method of direct current generator, the insulation against ground resistance that ground detection device detection armature loop is real-time
Being worth, and output signal delivers to logic controller, alarming value signal is delivered to man machine interface and display lamp by logic controller, prompting
Professional and technical personnel checks；Fault value signal is delivered to direct-current driving device, and direct-current driving device detects logic controller
After fault-signal, cutting off major loop, motor enters holding state.
Ground detection device is by the alarming value arranged and fault value, by two auxiliary contacts within ground detection device and report
Alert value is corresponding with fault value: when insulation resistance value reaches alarming value, and logic controller passes through man machine interface display alarm information,
Prompting professional and technical personnel checks, does not shuts down；When insulation resistance value reaches fault value, signal is delivered to by logic controller
Direct-current driving device, block triggers pulse and driver enables, and cuts off the current supply circuit of armature, now shuts down.
See Fig. 1, in the armature circuit of direct current generator, access high-voltage coupler, it is therefore an objective to make direct-current main motor armature circuit
High pressure (general 900V) blood pressure lowering be ground detection device required voltage.Real-time by ground detection device detection armature circuit
Two auxiliary within device, by the internal alarming value arranged of ground detection device and fault value, are connect by insulation against ground resistance
Point corresponds.When insulation resistance value reaches alarming value, 11,12 auxiliary contacts disconnect, and logic controller will be on man-machine boundary
Display alarm information on face, prompting professional and technical personnel checks, but does not shuts down；When insulation resistance value reaches fault value, 21,
22 auxiliary contacts disconnect, and signal is delivered to direct-current driving device by logic controller, and block in time triggers pulse and driver enables,
Cut off the current supply circuit of armature, system-down.
The present invention detects armature loop insulation against ground resistance in real time by ground detection device, and when resistance is low and Times
Alert, and motor operation can be stopped in time, improve the safety in operation of large-sized DC mair motor, improve production efficiency, Du
Substantial equipment accident absolutely.
Claims (5)
1. the insulation detection device for direct current generator, it is characterised in that include direct-current driving device, output direct current
Busbar, ground detection device, logic controller, man machine interface, direct-current driving device is by output DC master row with motor even
Connect, ground detection device with output DC master row is connected, ground detection device is connected with logic controller, logic controller and
Direct-current driving device connects, and man machine interface is connected with logic controller.
A kind of insulation detection device for direct current generator the most according to claim 1, it is characterised in that described
Ground detection device is Bender IRDH265-4.
A kind of insulation detection device for direct current generator the most according to claim 1, it is characterised in that described
It is connected and has bonder between ground detection device with output DC master row, in order to being ground connection by the high pressure blood pressure lowering in armature loop
Detection device required voltage.
4. a kind of insulation detecting method for direct current generator realized according to the device described in claim 1-3 any one,
It is characterized in that, the insulation against ground resistance that ground detection device detection armature loop is real-time, and output signal delivers to logic
Controller, alarming value signal is delivered to man machine interface and display lamp, prompting professional and technical personnel's inspection by logic controller；By event
Barrier value signal delivers to direct-current driving device, after direct-current driving device detects the fault-signal of logic controller, cuts off major loop,
Motor enters holding state.
A kind of insulation detecting method for direct current generator the most according to claim 4, it is characterised in that ground connection is examined
Survey the device alarming value by setting and fault value, by two auxiliary contacts within ground detection device and alarming value and fault
Value is corresponding: when insulation resistance value reaches alarming value, and logic controller passes through man machine interface display alarm information, prompting specialty
Technical staff checks, does not shuts down；When insulation resistance value reaches fault value, signal is delivered to DC driven by logic controller
Device, block triggers pulse and driver enables, and cuts off the current supply circuit of armature, now shuts down.
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 true CN106159902A (en) | 2016-11-23 |
| CN106159902B 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 |
|---|
| 许成金: "直流电机电枢绕组绝缘的在线检测方法", 《大电机技术》 * |
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| Publication number | Publication date |
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| CN106159902B (en) | 2018-08-03 |
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