CN209606558U - It is a kind of can periodically self-test and automatic Proofreading partial discharge on-Line Monitor Device - Google Patents
It is a kind of can periodically self-test and automatic Proofreading partial discharge on-Line Monitor Device Download PDFInfo
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- CN209606558U CN209606558U CN201920146089.0U CN201920146089U CN209606558U CN 209606558 U CN209606558 U CN 209606558U CN 201920146089 U CN201920146089 U CN 201920146089U CN 209606558 U CN209606558 U CN 209606558U
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Abstract
The utility model relates to on-line monitoring technique fields, especially it is a kind of can periodically self-test and automatic Proofreading partial discharge on-Line Monitor Device, high-frequency electrical pulses flow sensor is electrically connected on Partial discharge signal treatment in situ device, and Partial discharge signal treatment in situ device is connected on data integration center by transmission module, the high-frequency electrical pulses flow sensor is specially dual-port high-frequency electrical pulses flow sensor, and high-frequency electrical pulses flow sensor is mounted on cable connector ground line, the Partial discharge signal treatment in situ device includes partial discharge on-line monitoring unit and regular self-test and automatic Proofreading module, and partial discharge monitors unit and regular self-test on-line and automatic Proofreading module is electrically connected in high-frequency electrical pulses flow sensor.The partial discharge on-Line Monitor Device is not influenced without dismounting, operation time by site environment, and staff only need to can complete to monitor, efficiency is improved in consistency operation.
Description
Technical field
The utility model relates to on-line monitoring technique field, more particularly to it is a kind of can periodically self-test and automatic Proofreading office
Put on-Line Monitor Device.
Background technique
Cable run partial discharge on-line monitoring is that there are one of effective means of potential faults for discovery cable run in advance.In recent years
Come, large area installation partial discharge on-Line Monitor Device is had begun in some important lines.However installation is once completed, on-line monitoring
System longtime running for a period of time after, often will appear some system problems.Related data report shows on-line monitoring system
After continuous operation works 2 ~ 3 years, about 50% on-line monitoring system in a dormant state, and still in the system of work,
Only 30% data belong to effective monitoring data.It in other words, may after partial discharge on-Line Monitor Device continuous work 1 year
Can be because of bad environments or device quality problem, only the system and device of remaining one third is in unceasingly effectively work, this explanation
On-line monitoring system device itself be unable to do without maintenance and examines.
Currently, to confirm that partial discharge on-line monitoring system will arrange personnel that monitoring device is checked and proofreaded one by one.
Consider for security demand, the route scene under operating status is not allow personnel's entrance or close generally, therefore be mounted on
System and device state confirmation work just become difficult to carry out.
On the other hand, the communication cable in order to keep the moistureproof and waterproof performance of field device, between sensor and LS device
Deng all with the waterproof seal of tube, even if entering route scene, if not provision for disengagement equipment, it is difficult to be injected using standard signal
Or the method for replacement input signal, check and correction verifying is carried out to monitoring device.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and the one kind proposed can periodically certainly
The partial discharge on-Line Monitor Device of inspection and automatic Proofreading.
To achieve the goals above, the utility model adopts the technical scheme that
Design it is a kind of can periodically self-test and automatic Proofreading partial discharge on-Line Monitor Device, including high-frequency pulse current sensing
Device, Partial discharge signal treatment in situ device and data integration center, high-frequency electrical pulses flow sensor are electrically connected at Partial discharge signal
On treatment in situ device, and Partial discharge signal treatment in situ device is connected on data integration center by transmission module, the height
Frequency pulses of current sensor is specially dual-port high-frequency electrical pulses flow sensor, and high-frequency electrical pulses flow sensor is mounted on cable
On connector ground line, the Partial discharge signal treatment in situ device includes partial discharge on-line monitoring unit and regular self-test and automatic school
To module, and partial discharge on-line monitoring unit and regular self-test and automatic Proofreading module are electrically connected at high-frequency electrical pulses and spread
On sensor.
Regular self-test and automatic Proofreading module are mainly by closure normal open switch S2, control loop and standard single pulse signal
Generating loop composition, control loop is electrically connected on data integration center, and control loop is also electrically connected at standard simple venation
It rushes on signal generating loop, the standard single pulse signal generating loop passes through closure normal open switch S2It is electrically connected at high frequency arteries and veins
Rush current sensor.
Preferably, the partial discharge on-line monitoring unit is made of partial discharge monitoring modular and normally closed protective switch S, and partial discharge
Monitoring modular is electrically connected on normally closed protective switch S and data integration center, and the normally closed protective switch S electrically connects
It connects in high-frequency electrical pulses flow sensor.
Preferably, the standard single pulse signal generating loop includes battery, DC-DC module, pressure divider circuit, polarity switching
Module and relay, the battery are electrically connected in DC-DC module, and DC-DC module is electrically connected on pressure divider circuit, institute
It states pressure divider circuit to be electrically connected in polarity switching module, the polarity switching module is electrically connected on relay, and relay
Device is electrically connected with standard capacitance, and the relay is also electrically connected at control loop and closure normal open switch S2On.
Preferably, transmission module is specially wireless network module either optic module.
The utility model proposes it is a kind of can periodically self-test and automatic Proofreading partial discharge on-Line Monitor Device, beneficial effect
It is:
1, without dismounting, operation time do not influenced the partial discharge on-Line Monitor Device by site environment, and staff only need to be
Consistency operation can be completed to monitor, and efficiency is improved；
2, the partial discharge on-Line Monitor Device is adjusted automatically according to the checking signal of sending, and one-key operation is convenient and efficient,
Without entering route scene, personnel safety is guaranteed；
3, using the twin coil winding of high-frequency electrical pulses flow sensor, can periodic check functional module, can adjust automatically
Gain is equipped with perfect regular self-test and automatic Proofreading logic.
Detailed description of the invention
Fig. 1 be the utility model proposes it is a kind of can the partial discharge on-Line Monitor Device of periodically self-test and automatic Proofreading be
System block diagram.
Fig. 2 be the utility model proposes it is a kind of can periodically self-test and automatic Proofreading partial discharge on-Line Monitor Device mark
The system block diagram of quasi- single pulse signal generating loop.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-2, it is a kind of can periodically self-test and automatic Proofreading partial discharge on-Line Monitor Device, including high-frequency electrical pulses
Flow sensor, Partial discharge signal treatment in situ device and data integration center, data integration center can be patrolled with the function of its setting
It collects to realize to the control of the regular self-test of Partial discharge signal treatment in situ device and automatic Proofreading operation, supervises entire partial discharge online
Examining system is in effective working condition always, within the period of system setting, can drive automatically and put on-line monitoring with control office
System carries out self-test work, is the device for needing to proofread to judging result, starts automatic Proofreading operating process.
High-frequency electrical pulses flow sensor is electrically connected on Partial discharge signal treatment in situ device, and Partial discharge signal treatment in situ
Device is connected on data integration center by transmission module, and the high-frequency electrical pulses flow sensor is specially dual-port high frequency arteries and veins
Rush current sensor, and high-frequency electrical pulses flow sensor is mounted on cable connector ground line, high-frequency electrical pulses flow sensor by
Two coil windings are constituted, and under the premise of keeping high frequency characteristics constant, realize the Multiple coil of high-frequency electrical pulses flow sensor
Change, the input port connection type in dual-port high-frequency electrical pulses flow sensor, connection type is input port with coaxially believing
Number line, regular self-test and automatic Proofreading module and data integration center connect one by one.The Partial discharge signal treatment in situ
Device includes partial discharge on-line monitoring unit and regular self-test and automatic Proofreading module, and partial discharge on-line monitoring unit and periodically
Self-test and automatic Proofreading module are electrically connected in high-frequency electrical pulses flow sensor.
Regular self-test and automatic Proofreading module are mainly by normal open switch S2, control loop and standard single pulse signal occur
Circuit composition, control loop are electrically connected on data integration center, and control loop is also electrically connected at standard pulse letter
On number generating loop, the standard single pulse signal generating loop passes through closure normal open switch S2It is electrically connected at high-frequency electrical pulses
Flow sensor, when being verified, data integration center can issue checking command to periodic check module, control back
It is waken up in Lu Huicong dormant state, driving standard single pulse signal generating loop generates checking signal, and is closed normally opened open
Close S2, checking signal is passed to the input winding of high-frequency electrical pulses flow sensor.After verifying work, control loop is received
After ceasing and desisting order, i.e., it can turn on the switch S2, restore dormant state, wait check command next time.
The input winding of high-frequency electrical pulses flow sensor uses metal foil film electrode instead as signal injection mode, based on electricity
Hold the indirect injection method of coupling principle, working method is to be injected into cable indirectly by paper tinsel film electrode by Partial discharge signal is simulated
It goes, the partial discharge sensor for being then installed in scene detected.Its remarkable result mainly infuses simulation Partial discharge signal indirectly
Enter into measurand (such as cable), more truly partial discharge occurs for dummycable route, examines the function of on-line monitoring system
Reaction speed.
The partial discharge on-line monitoring unit is made of partial discharge monitoring modular and normally closed protective switch S, and partial discharge monitors mould
Block is electrically connected on normally closed protective switch S and data integration center, and the normally closed protective switch S is electrically connected at height
On frequency pulses of current sensor, partial discharge monitoring modular mainly by traditional normally closed protective switch S, amplification, filtering, detection and mould/
Number conversion circuit composition, when judgement needs to make adjustment when data integration center, can issue adjustment instruction and monitor to partial discharge
Module, and adjusted gain values to zone of reasonableness according to checking signal.
The standard single pulse signal generating loop include battery, DC-DC module, pressure divider circuit, polarity switching module with
And relay, the battery are electrically connected in DC-DC module, DC-DC module is electrically connected on pressure divider circuit, the partial pressure
Circuit is electrically connected in polarity switching module, and the polarity switching module is electrically connected on relay, and relay is electrical
It is connected with standard capacitance, the relay is also electrically connected at control loop and closure normal open switch S2On, passed through by battery
Power module generate a higher DC voltage, by pressure divider circuit partial pressure stepping output, then carry out polarity switching with
The needs for meeting output polarity, by controlling the movement of relay, matching standard capacitor output simulation partial discharge pulse signal.
Transmission module is specially wireless network module either optic module.
Specific steps are as follows:
Before device puts into operation, system is corrected using standard analog Partial discharge signal generator, confirmation system is normal and reaches
It is required to putting into operation.
After the completion of system compensation, closure switch S2, control loop driving standard single pulse signal generating loop generation one
Checking signal and the input winding for passing to high-frequency electrical pulses flow sensor, then detected by output winding and be transferred to Partial discharge signal just
Partial discharge monitoring unit in ground processing unit is handled, and is finally shown and is saved at data integration center.
After system is run 1 month, data integration center sends self-checking command to Partial discharge signal treatment in situ device, at wake-up
It will closure switch S in the regular self-test of dormant state and automatic Proofreading module2, corresponding checking signal is generated, is compared twice
System detection value when verification.
The detection signal magnitude verified more twice, in fact it could happen that following three kinds of situations:
Monitor value difference indicates that partial discharge on-line monitoring system is normal, verifying work is completed, regular module less than 10% twice
Go successively to dormant state.
When twice, monitor value is differed by more than equal to 10% and less than or equal to 50%, indicates that there is some difference for system, system is soft
Part will do it automatic starting automatic Proofreading mode.
When twice, monitor value differs by more than 50%, illustrates system there may be relatively large deviation, needs further to judge, system
Warping apparatus alarm is issued, related personnel is reminded to show up the system of checking.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (4)
1. one kind can periodically self-test and automatic Proofreading partial discharge on-Line Monitor Device, which is characterized in that including high-frequency electrical pulses
Flow sensor, Partial discharge signal treatment in situ device and data integration center, high-frequency electrical pulses flow sensor are electrically connected at office
On discharge signal treatment in situ device, and Partial discharge signal treatment in situ device is connected on data integration center by transmission module,
The high-frequency electrical pulses flow sensor is specially dual-port high-frequency electrical pulses flow sensor, and high-frequency electrical pulses flow sensor is installed
Cable connector ground line on, the Partial discharge signal treatment in situ device include partial discharge on-line monitoring unit and regular self-test and
Automatic Proofreading module, and partial discharge on-line monitoring unit and regular self-test and automatic Proofreading module are electrically connected at high-frequency impulse
On current sensor；
Regular self-test and automatic Proofreading module are mainly by closure normal open switch S2, control loop and standard single pulse signal occur
Circuit composition, control loop are electrically connected on data integration center, and control loop is also electrically connected at standard pulse letter
On number generating loop, the standard single pulse signal generating loop passes through closure normal open switch S2It is electrically connected at high-frequency electrical pulses
Flow sensor.
2. one kind according to claim 1 can periodically self-test and automatic Proofreading partial discharge on-Line Monitor Device, feature
It is, the partial discharge on-line monitoring unit is made of partial discharge monitoring modular and normally closed protective switch S, and partial discharge monitoring modular point
It is not electrically connected on normally closed protective switch S and data integration center, the normally closed protective switch S is electrically connected at high frequency arteries and veins
It rushes on current sensor.
3. one kind according to claim 1 can periodically self-test and automatic Proofreading partial discharge on-Line Monitor Device, feature
Be, the standard single pulse signal generating loop include battery, DC-DC module, pressure divider circuit, polarity switching module and after
Electric appliance, the battery are electrically connected in DC-DC module, and DC-DC module is electrically connected on pressure divider circuit, the pressure divider circuit
It is electrically connected in polarity switching module, the polarity switching module is electrically connected on relay, and relay is electrically connected
There is standard capacitance, the relay is also electrically connected at control loop and closure normal open switch S2On.
4. one kind according to claim 1 can periodically self-test and automatic Proofreading partial discharge on-Line Monitor Device, feature
It is, transmission module is specially wireless network module either optic module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920146089.0U CN209606558U (en) | 2019-01-28 | 2019-01-28 | It is a kind of can periodically self-test and automatic Proofreading partial discharge on-Line Monitor Device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920146089.0U CN209606558U (en) | 2019-01-28 | 2019-01-28 | It is a kind of can periodically self-test and automatic Proofreading partial discharge on-Line Monitor Device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113433430A (en) * | 2021-05-19 | 2021-09-24 | 深圳供电局有限公司 | Partial discharge detection apparatus and method |
| CN114200257A (en) * | 2021-11-19 | 2022-03-18 | 山东电工配网科技发展有限公司 | Online monitor is put in ring net case office |
| CN114236315A (en) * | 2021-12-23 | 2022-03-25 | 国网山东省电力公司烟台供电公司 | Submarine cable running state monitoring device and monitoring method thereof |
-
2019
- 2019-01-28 CN CN201920146089.0U patent/CN209606558U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113433430A (en) * | 2021-05-19 | 2021-09-24 | 深圳供电局有限公司 | Partial discharge detection apparatus and method |
| CN114200257A (en) * | 2021-11-19 | 2022-03-18 | 山东电工配网科技发展有限公司 | Online monitor is put in ring net case office |
| CN114236315A (en) * | 2021-12-23 | 2022-03-25 | 国网山东省电力公司烟台供电公司 | Submarine cable running state monitoring device and monitoring method thereof |
| CN114236315B (en) * | 2021-12-23 | 2023-12-29 | 国网山东省电力公司烟台供电公司 | Submarine cable running state monitoring device and monitoring method thereof |
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