CN209387803U - A kind of partial discharge monitoring system with self-checking function - Google Patents
A kind of partial discharge monitoring system with self-checking function Download PDFInfo
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- CN209387803U CN209387803U CN201822148063.8U CN201822148063U CN209387803U CN 209387803 U CN209387803 U CN 209387803U CN 201822148063 U CN201822148063 U CN 201822148063U CN 209387803 U CN209387803 U CN 209387803U
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- partial discharge
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- sided pulse
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Abstract
The utility model provides a kind of partial discharge monitoring system with self-checking function, including a main control unit, the multiple control units being connect respectively with main control unit, each control unit connects multiple partial discharge monitoring unit simultaneously, each partial discharge monitoring unit includes partial discharge monitor and sensor connected to it, zero phase of the synchronization signal of system as the sampling period, it further include the steep-sided pulse generator being connect with main control unit, steep-sided pulse generator receives system synchronization signal, the control command that main control unit is sent to it is received simultaneously, start the phase and size of transmission steep-sided pulse signal to control steep-sided pulse generator, sensor in system in all partial discharge monitoring unit receives the steep-sided pulse signal simultaneously.System is judged according to the phase and size of the steep-sided pulse signal received, to realize the self-test of system.
Description
Technical field
The utility model relates to electric power Partial Discharge Detection apparatus fields, specifically, and in particular to one kind has self-test function
The partial discharge of energy monitors system.
Background technique
Shelf depreciation is the omen of Electric Power Equipment Insulation deterioration.By monitoring the shelf depreciation inside high-tension electricity equipment,
Its state of insulation can be assessed, the insulation defect inside discovery, avoids accident in advance.Partial Discharge Sources are quantitatively commented
Estimate be partial discharge monitoring free-revving engine, its status monitoring important in inhibiting for power equipment.
Impulse generator is usually utilized to simulation Partial Discharge Sources, to demarcate to partial discharge monitoring device.Usually exist
It when carrying out the self-test of partial discharge monitoring device, needs to be manually entered pulse parameter on impulse generator, is then directed to partial discharge detection
Each detection unit in system operates one by one, checks whether it can receive the pulse signal.For in system
For partial discharge detection device, the function without phase-detection, and inefficiency.
Utility model content
For above-mentioned defect existing in the prior art, the purpose of the utility model is to provide a kind of with self-checking function
Partial discharge monitors system, not only increases the function of phase monitor, and improve the accuracy of monitoring, reliability, while greatly
Improve the efficiency of self-test.
In order to achieve the above objectives, technical solution used by the utility model is as follows:
A kind of partial discharge monitoring system with self-checking function, including a main control unit, connect with main control unit respectively
The multiple control units connect, each control unit connect multiple partial discharge monitoring unit simultaneously, and each partial discharge monitoring unit includes office
Monitor and sensor connected to it are put, zero phase of the synchronization signal of system as the sampling period further includes one and master
Control unit connection steep-sided pulse generator, steep-sided pulse generator receive system synchronization signal, while receive main control unit to
Its control command sent starts the phase and size of transmission steep-sided pulse signal, institute in system to control steep-sided pulse generator
Sensor in some partial discharge monitoring unit receives the steep-sided pulse signal simultaneously.System is according to the steep-sided pulse signal received
Phase and size are judged, realize the self-test of system.
The steep-sided pulse generator starts to send out in the designated phase in a sampling period using zero phase as starting point
Send steep-sided pulse signal.
The designated phase is the one or more in a sampling period, so that steep-sided pulse generator is a sampling week
One or more pulse signals can occur in phase.
The amplitude of one or more pulse signals of generation is set as one or more.
The synchronization signal of system can be main control unit generation, be also possible to external offer.
The main control unit is PC machine.
Compared with prior art, the utility model have it is following the utility model has the advantages that
1, it is provided with phase settings function, increases the phase parameter of pulse signal, the missing on perfect functional parameter,
Be conducive to obtain more accurate data to the real simulation of live shelf depreciation environment；
2, impulse generator also receives synchronization signal, ensure that the same phase of same frequency of pulse signal in partial discharge monitoring system, makes
The accuracy of partial discharge monitoring is improved；
3, pulse parameter information is arranged in main control unit, not only simplifies the operation to impulse generator, meanwhile, it ensure that
Each sampling unit sampled signal is consistent and accurate in whole system.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model
Sign, objects and advantages will become more apparent upon:
Fig. 1 is the structure composition block diagram of one embodiment of Tthe utility model system；
Fig. 2 is the structure composition block diagram of another embodiment of Tthe utility model system；
Fig. 3 is the phase schematic diagram of specified pulsing of the utility model within a sampling period.
Specific embodiment
The utility model is described in detail combined with specific embodiments below.Following embodiment will be helpful to this field
Technical staff further understands the utility model, but does not limit the utility model in any form.It should be pointed out that ability
For the those of ordinary skill in domain, without departing from the concept of the premise utility, several changes and improvements can also be made.
These are all within the protection scope of the present invention.
It is shown in Figure 1, the group of partial discharge monitoring one embodiment of system provided by the utility model with self-checking function
At block diagram, including a main control unit 1, main control unit can be PC machine in the utility model.Main control unit 1 connects respectively
Connect multiple control units 2.Each control unit 2 connects multiple partial discharge monitoring unit simultaneously again.Each partial discharge monitoring unit includes
Partial discharge monitor 3, what is connect with partial discharge monitor 3 is used as sensor 4.It further include the rake vein being connect with main control unit 1
Generator 5 is rushed, steep-sided pulse generator 5 can send test pulse, and sensor 4 receives the pulse signal, to be believed with the pulse
Number the true shelf depreciation environment in scene is simulated, realizes the self-test to partial discharge monitoring system.
It is the composition of partial discharge monitoring another embodiment of system provided by the utility model with self-checking function shown in Fig. 2
Block diagram.It is different from embodiment shown in FIG. 1, in the present embodiment, synchronization signal is provided by external synchronous generator 6
's.
When self-test, using the synchronization signal of system as the zero phase in sampling period, steep-sided pulse generator 5 receives the same of system
Walk signal.Meanwhile main control unit 1 also can send control command to steep-sided pulse generator 5, which is included in above-mentioned zero phase
Position is in the phase specified in a sampling period of starting point, within the period, and steep-sided pulse generator 5 just starts to send pulse
Signal, and set the size of the pulse signal of generation.After steep-sided pulse generator 5 receives synchronization signal, according to
Steep-sided pulse takes place in the phase and size of the pulse set.The pulse signal is almost same by sensor 4 all in system
When receive.Sensor by the pulse signal received carry out edit after on give partial discharge monitor 3；Partial discharge monitor 3
According to synchronization signal, the phase and amplitude size of the pulse signal of each channel acquisition is calculated, and result is uploaded to the end PC.The end PC
Receive data, judge whether the phase of each channel signal and amplitude accurate, thus judge entire partial discharge system whether normal operation.
In addition, the phase point that set steep-sided pulse generator 5 sends pulse signal can be in a sampling period
One phase, is also possible to multiple phases, as shown in Figure 3.
Impulse generator working condition is as shown in Figure 3: it is A1 that 1 amplitude of pulse, which is arranged, in the end PC transmitting order to lower levels, and phase is 120 °,
2 amplitude of pulse is A2, and phase is 240 °, and when impulse generator receives synchronization signal, beginning timing (O point) reaches when the time
The pulse signal 1 that amplitude is A1 occurs when 1/3 period, i.e., at 120 °, when the time reaching for 2/3 period, i.e., width occurs for 240 ° whens
Value is the pulse 2 of A2.
The pulse information set-up function of the utility model setting can issue life using the end PC by reserved communication interface
Parameters, this function such as frequency, amplitude, the phase of setting pulse signal is enabled to increase the scope of application of impulse generator, not only
As a handheld device, can also pulse generator module be embedded into partial discharge system and be used, easy to operate, effect
Rate is higher.
Specific embodiment of the utility model is described above.It is to be appreciated that the utility model not office
It is limited to above-mentioned particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims,
This has no effect on the substantive content of the utility model.In the absence of conflict, the spy in embodiments herein and embodiment
Sign can be arbitrarily combined with each other.
Claims (6)
1. a kind of partial discharge with self-checking function monitors system, which is characterized in that including a main control unit, respectively with master control
Multiple control units of unit connection processed, each control unit connect multiple partial discharge monitoring unit simultaneously, and each partial discharge monitoring is single
Member includes partial discharge monitor and sensor connected to it, and zero phase of the synchronization signal of system as the sampling period further includes
One steep-sided pulse generator connecting with main control unit, steep-sided pulse generator receives system synchronization signal, while receiving master control
The control command that unit processed is sent to it starts the phase and size of transmission steep-sided pulse signal to control steep-sided pulse generator,
Sensor in system in all partial discharge monitoring unit receives the steep-sided pulse signal simultaneously.
2. the partial discharge according to claim 1 with self-checking function monitors system, which is characterized in that the steep-sided pulse occurs
Device starts to send steep-sided pulse signal in the designated phase in a sampling period using zero phase as starting point.
3. partial discharge according to claim 2 with self-checking function monitors system, which is characterized in that the designated phase is
One or more in one sampling period, so that within a sampling period one or more can occur for steep-sided pulse generator
Pulse signal.
4. the partial discharge according to claim 3 with self-checking function monitors system, which is characterized in that one or more of generation
The amplitude of a pulse signal is set as one or more.
5. the partial discharge according to claim 1 with self-checking function monitors system, which is characterized in that the synchronization signal of system
It can be main control unit generation, external offer be provided.
6. the partial discharge according to claim 1 with self-checking function monitors system, which is characterized in that the main control unit
It is PC machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822148063.8U CN209387803U (en) | 2018-12-20 | 2018-12-20 | A kind of partial discharge monitoring system with self-checking function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822148063.8U CN209387803U (en) | 2018-12-20 | 2018-12-20 | A kind of partial discharge monitoring system with self-checking function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112816836A (en) * | 2020-12-30 | 2021-05-18 | 上海格鲁布科技有限公司 | Fault detection system, partial discharge online monitoring device and method |
-
2018
- 2018-12-20 CN CN201822148063.8U patent/CN209387803U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112816836A (en) * | 2020-12-30 | 2021-05-18 | 上海格鲁布科技有限公司 | Fault detection system, partial discharge online monitoring device and method |
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