CN203084164U - High-voltage circuit breaker performance online monitoring device - Google Patents
High-voltage circuit breaker performance online monitoring device Download PDFInfo
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- CN203084164U CN203084164U CN 201320125521 CN201320125521U CN203084164U CN 203084164 U CN203084164 U CN 203084164U CN 201320125521 CN201320125521 CN 201320125521 CN 201320125521 U CN201320125521 U CN 201320125521U CN 203084164 U CN203084164 U CN 203084164U
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- circuit breaker
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- monitoring device
- digital converter
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Abstract
The utility model provides a high-voltage circuit breaker performance online monitoring device which comprises a CPU (central processing unit) and an analog-to-digital converter, wherein the CPU is connected with the analog-to-digital converter, a ZigBee wireless communication interface and a power module; and a plurality of analog signal input interfaces are arranged on the analog-to-digital converter. According to the high-voltage circuit breaker performance online monitoring device, the current of a circuit breaker trip loop, a closing loop and an energy-storing loop is acquired; the current waveform every time when a circuit breaker acts is recorded in real time by designing an internal embedded processor system, and the action characteristics of the circuit breaker are worked out by comparing the rated action parameters of the circuit breaker; and when the amplitude and duration of the action current exceed set scopes, warning information is sent out via a wireless network, so as to remind the operation and maintenance personnel to maintain and repair.
Description
Technical field
The utility model relates to the watch-dog technical field, particularly a kind of primary cut-out performance on-line monitoring device.
Background technology
Each electric pressure (6kV, 10kV, 35kV, 66kV, 110kV, 220kV, 330kV, 500kV, 1000kV) of electric system is now all used isolating switch in a large number, when system's normal running, switch on and off load current, the open failure electric current excises faulty component from system under failure condition.The effect of primary cut-out in electrical network is most important, to such an extent as to break down or will cause power grid accident or expansion accident during accident when it, therefore guarantees that its reliability is very important.
The maintenance mode that power system development is taked in early days is " maintenance afterwards " is not promptly not badly repaiied, has been gone bad just and repaiied, and service work is in passive position fully.Developed into maintenance mode afterwards, be called " prophylactic repair " to put prevention first.Situation is made in operation according to equipment, preestablishes service work content and cycle, has arrived the regulation cycle of operation and must overhaul, and takes place to prevent accident.
Up to the present, prophylactic repair still is the main flow maintenance mode.Periodic maintenance has been played really in guaranteeing the visual plant operate as normal and has directly been prevented or the effect of delay fault, but it is this not according to the actual state of equipment, the method that the simple cycle in accordance with regulations keeps in repair equipment, not only cause the waste of the loss of equipment operational use time and human and material resources, financial resources, even can cause maintenance failure.
Rural power grids mainly are the transformer stations of 35kV electric pressure, and it is lower that the isolating switch of use has more overall cost, and quantity is huge, and applied environment is relatively poor, safeguard and monitor characteristics such as not ideal.Most isolating switchs all do not have real-time watch device, but according to original working specification prophylactic repair, have very big blindness, and very big uneconomical factor is also arranged.
The utility model content
The utility model provides a kind of primary cut-out performance on-line monitoring device, with the state of automatic detection primary cut-out, improves the stability and the security of system,
To achieve these goals, the utility model provides following technical scheme:
A kind of primary cut-out performance on-line monitoring device, it comprises: CPU and analog to digital converter, described CPU connects described analog to digital converter, ZigBee wireless communication interface and power module, and described analog to digital converter is provided with a plurality of analog input interfaces.
Preferably, described CPU also is connected with RAM, SPI Flash and real-time clock/watchdog module.
Preferably, described power module is AC power supplies module or dc power module.
By implementing above technical scheme, has following technique effect: the primary cut-out performance on-line monitoring device that the utility model provides, gather circuit breaker trip loop, closing circuit and tank circuit electric current, by installing inner embedded processor system, current waveform when the real time record isolating switch moves at every turn, and draw breaker operating characteristic according to the specified action parameter contrast of isolating switch, during the scope that exceeds setting when the amplitude of action current and duration, send warning information by wireless network, prompting operation maintenance personnel carry out Maintenance and Repair.
Description of drawings
The structure principle chart of the primary cut-out performance on-line monitoring device that Fig. 1 provides for the utility model.
Embodiment
In order better to understand the technical solution of the utility model, describe the embodiment that the utility model provides in detail below in conjunction with accompanying drawing.
The utility model embodiment provides a kind of primary cut-out performance on-line monitoring device, as shown in Figure 1, comprise: CPU and analog to digital converter, described CPU connects described analog to digital converter, ZigBee (honeycomb wireless LAN communication technology) wireless communication interface and power module, and described analog to digital converter is provided with a plurality of analog input interfaces.Isolating switch for dc operation mechanism, compensation Hall current sensor is selected in the current signal input for use, for the isolating switch of alternating current operation mechanism, current transformer is adopted in the current signal input, and current sensor is connected the analog input interface on this analog to digital converter.
Primary cut-out is general all with the first order control element of electromagnet as operation, when passing through electric current in the coil, in electromagnet, produce magnetic flux, moving iron core is subjected to magnetic attraction, make breaker open operation or combined floodgate, from energy point of view, the effect of electromagnet is that the electric energy from power supply is converted into magnetic energy, and, convert mechanical energy output again to by moving action unshakable in one's determination.Close, contain in the electric current of switching winding and can be used as the abundant information that the diagnosis mechanical fault is used.Can select compensation Hall current sensor monitoring current signal for use for the isolating switch of dc operation mechanism,, adopt current transformer monitoring current signal for the isolating switch of alternating current operation.To the monitoring of coil current mainly is the relative moment that the extraction incident takes place, according to time interval failure judgement sign, effective for diagnosis tripping, malfunction fault.
The electric current of the trip(ping) circuit of this on-Line Monitor Device monitoring breaker, closing circuit, tank circuit.Can reflect the failure condition more than 90%, number of sensors is few, cost is low, on-the-spot simple installation, and the operational reliability height is adapted at rural power grids and is extensive use of.In conjunction with the expert system software of background computer system, can also further draw the items such as fault trend of isolating switch accumulative total number of operations, prediction breaker operator coil.This on-Line Monitor Device is carried out the sampling of each magnitude of current with 0.5 millisecond time cycle, when isolating switch moves, can note the current waveform of whole course of action, by comparing with nominal parameter, when the amplitude of electric current or duration reach setting value, send alarm signal, the prompting operation maintenance personnel overhaul isolating switch.
This on-line monitoring configuration has the colour liquid crystal display device of touch-screen as operation interface, it all is the operation of icon formula, all adopt the components and parts of wide temperature range, crust of the device employing high-protection level design proposal can be directly installed on the open air or high-voltage switch gear is indoor.Have compact conformation, easy to use, characteristics such as operation is directly perceived, cost performance height.
In other embodiments, on the foregoing description basis, further, described CPU also is connected with RAM (storer), SPI Flash (flash memory) and real-time clock/watchdog module.
In the various embodiments described above, preferably, described power module is AC (interchange) power module or DC (direct current) power module.
More than a kind of primary cut-out performance on-line monitoring device that the utility model embodiment is provided be described in detail, for one of ordinary skill in the art, thought according to the utility model embodiment, part in specific embodiments and applications all can change, in sum, this description should not be construed as restriction of the present utility model.
Claims (3)
1. primary cut-out performance on-line monitoring device, it is characterized in that, comprise: CPU and analog to digital converter, described CPU connects described analog to digital converter, ZigBee wireless communication interface and power module, and described analog to digital converter is provided with a plurality of analog input interfaces.
2. primary cut-out performance on-line monitoring device according to claim 1 is characterized in that described CPU also is connected with RAM, SPI Flash and real-time clock/watchdog module.
3. primary cut-out performance on-line monitoring device according to claim 1 is characterized in that described power module is AC power supplies module or dc power module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320125521 CN203084164U (en) | 2013-03-20 | 2013-03-20 | High-voltage circuit breaker performance online monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320125521 CN203084164U (en) | 2013-03-20 | 2013-03-20 | High-voltage circuit breaker performance online monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203084164U true CN203084164U (en) | 2013-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320125521 Expired - Fee Related CN203084164U (en) | 2013-03-20 | 2013-03-20 | High-voltage circuit breaker performance online monitoring device |
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| Country | Link |
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| CN (1) | CN203084164U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103760489A (en) * | 2014-01-22 | 2014-04-30 | 国家电网公司 | Intelligent detection device for high-voltage circuit breaker |
-
2013
- 2013-03-20 CN CN 201320125521 patent/CN203084164U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103760489A (en) * | 2014-01-22 | 2014-04-30 | 国家电网公司 | Intelligent detection device for high-voltage circuit breaker |
| CN103760489B (en) * | 2014-01-22 | 2017-05-24 | 国家电网公司 | Intelligent detection device for high-voltage circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20180320 |