CN203054171U - Capacitor fault monitoring device - Google Patents
Capacitor fault monitoring device Download PDFInfo
- Publication number
- CN203054171U CN203054171U CN 201320071512 CN201320071512U CN203054171U CN 203054171 U CN203054171 U CN 203054171U CN 201320071512 CN201320071512 CN 201320071512 CN 201320071512 U CN201320071512 U CN 201320071512U CN 203054171 U CN203054171 U CN 203054171U
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- capacitor
- sensor
- monitoring device
- fault monitoring
- monitor
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Abstract
The utility model discloses a capacitor fault monitoring device comprising a sensor and a monitor used for displaying whether there is a discharge signal. The sensor is electrically connected with a pole plate of a capacitor. The sensor is connected with the monitor. The capacitor fault monitoring device also comprises a discharging coil which is in parallel connection with the capacitor. The capacitor is a capacitor group with Y wire connection. The sensor is connected to a neutral line of the capacitor group with the Y wire connection. According to the capacitor fault monitoring device, the sensor is arranged at the discharging coil which is in parallel connection with the capacitor, then the sensor is connected with the monitor, a discharging signal of the capacitor is obtained through the sensor and is displayed through the monitor, thus after the capacitor is removed, the charge on the pole plate can be timely released through the discharging coil, and the generation of a capacitor explosion accident caused by the investment of the capacitor again is avoided. The device has the advantages of simple structure, portability and capability of timely and accurately judging the discharge state of the capacitor.
Description
Technical field
The utility model relates to power equipment monitoring field, particularly a kind of capacitor and discharge coil fault monitoring device thereof.
Background technology
In electric system, the reactive power equilibrium of keeping under the normal operation of electrical network is the pacing items that ensures power supply quality.Utilize power capacitor to carry out reactive-load compensation and can improve power factor, reduce the active loss of electrical network, can also improve the capacity utilization factor of transformer and power circuit simultaneously, stable operation voltage.Therefore, the safe operation of capacitor plays important effect to power supply quality and the benefit that ensures electric system.
But, the case of capacitor blast emerges in an endless stream, its chief reason is the superpotential operation, can not surpass 1.1 times of rated voltages during long-time running, must discharge residual voltage timely after the capacitor excision, voltage was down in the 50V after GB was defined in 5min, mainly contained discharge coil and PT as the discharge instrument of capacitor, and capacity is big, cost is low makes discharge coil in this field widespread use.But, if capacitor excision back discharge coil fault, fail to discharge the electric charge on the pole plate, and down time is when satisfying condition, receive again when dropping into this capacitor instruction, just have an initial voltage, both stacks, can produce the superpotential of a moment, very likely cause the capacitor explosive incident.
Therefore the device that needs a kind of energy monitoring capacitor whether to discharge.
The utility model content
In view of this, technical problem to be solved in the utility model provides the device whether a kind of energy monitoring capacitor discharges.
The utility model is achieved through the following technical solutions:
The capacitor fault monitoring device that the utility model provides comprises sensor and is used for showing the monitor whether discharge signal is arranged; Described sensor is electrically connected with a pole plate of capacitor, and described sensor is connected with monitor.
Further, also comprise the discharge coil that also is connected with capacitor.
Further, described capacitor is the capacitor group of Y type wiring, and described sensor is connected on the neutral line of capacitor group of Y type wiring.
Further, described sensor is Rogowsky coil.
Further, described sensor is high frequency sensors.
Further, described monitor comprises amplifying unit and signal processing unit, AD converting unit, control processing and display unit, described sensor exports transducing signal to amplifying unit, signal processing unit, AD converting unit respectively, described control processing and display unit are responsible for coordinating the work of whole monitor, and all signal datas are handled through control and sent to display unit.
The beneficial effects of the utility model are: the utility model adopts sensor is arranged on the discharge coil that also is connected with capacitor, and then sensor is connected with monitor, obtain the discharge signal of capacitor by sensor, show by monitor, make after the capacitor excision and can be in time to discharge electric charge on the pole plate, the generation of initiation capacitor explosive incident when avoiding dropping into this capacitor again by discharge coil.This apparatus structure is simple, easy to carry and can in time, accurately judge the state that capacitor discharges.
Description of drawings
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing the utility model is described in further detail, wherein:
Fig. 1 is the capacitor discharge coil supervision schematic diagram that discharges in real time;
Fig. 2 is capacitor body fault real time monitoring schematic diagram.
Among the figure, sensor-1, monitor-2, capacitor-3, discharge coil-4.
Embodiment
Hereinafter with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail.Should be appreciated that preferred embodiment only for the utility model is described, rather than in order to limit protection domain of the present utility model.
Fig. 1 is the capacitor discharge coil supervision schematic diagram that discharges in real time, Fig. 2 is capacitor body fault real time monitoring schematic diagram, as shown in the figure: the capacitor fault monitoring device that the utility model provides comprises sensor 1 and is used for showing the monitor 2 whether discharge signal is arranged; Described sensor is electrically connected with a pole plate of 1 capacitor 3, and this sensor also can be arranged on the discharge coil 4 that also is connected with capacitor, and sensor 1 is connected with monitor 2 then.
This capacitor also can be adopt the capacitor group of Y type wiring simultaneously, and described sensor is connected on the neutral line of capacitor group of Y type wiring.Described sensor is Rogowsky coil.Described sensor is high frequency sensors.
Described monitor comprises amplifying unit and signal processing unit, AD converting unit, control processing and display unit, described sensor exports transducing signal to amplifying unit, signal processing unit, AD converting unit respectively, described control processing and display unit are responsible for coordinating the work of whole monitor, and all signal datas are handled through control and sent to display unit.
After the capacitor excision, pass through discharge coil, discharge residual voltage timely, excise the signal that capacitor all can monitor a discharge afterwards each time, to see that this signal is the foundation whether discharge coil has timely discharge, when receiving this capacitor instruction of input again, capacitor can not produce superpotential, has avoided causing the generation of capacitor explosive incident.
In like manner can connect the shelf depreciation situation that a Rogowsky coil monitors capacitor body inside at the neutral line of the capacitor of Y type wiring, as the state parameter of capacitor fault, can find fault in early days, in time get rid of hidden danger.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although by the utility model being described with reference to preferred embodiment of the present utility model, but those of ordinary skill in the art is to be understood that, can make various changes to it in the form and details, and not depart from the spirit and scope of the present utility model that appended claims limits.
Claims (6)
1. the capacitor fault monitoring device is characterized in that: comprise sensor and be used for showing the monitor whether discharge signal is arranged; Described sensor is electrically connected with a pole plate of capacitor, and described sensor is connected with monitor.
2. capacitor fault monitoring device according to claim 1 is characterized in that: also comprise the discharge coil that also is connected with capacitor.
3. capacitor fault monitoring device according to claim 1, it is characterized in that: described capacitor is the capacitor group of Y type wiring, described sensor is connected on the neutral line of capacitor group of Y type wiring.
4. capacitor fault monitoring device according to claim 1, it is characterized in that: described sensor is Rogowsky coil.
5. capacitor fault monitoring device according to claim 1, it is characterized in that: described sensor is high frequency sensors.
6. capacitor fault monitoring device according to claim 1, it is characterized in that: described monitor comprises amplifying unit and signal processing unit, AD converting unit, control processing and display unit, described sensor exports transducing signal to amplifying unit, signal processing unit, AD converting unit respectively, described control processing and display unit are responsible for coordinating the work of whole monitor, and all signal datas are handled through control and sent to display unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320071512 CN203054171U (en) | 2013-02-07 | 2013-02-07 | Capacitor fault monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320071512 CN203054171U (en) | 2013-02-07 | 2013-02-07 | Capacitor fault monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203054171U true CN203054171U (en) | 2013-07-10 |
Family
ID=48737111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320071512 Expired - Lifetime CN203054171U (en) | 2013-02-07 | 2013-02-07 | Capacitor fault monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203054171U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529345A (en) * | 2013-09-23 | 2014-01-22 | 国家电网公司 | Substation 35kV capacitor discharge coil operating state monitoring method and device |
| CN114383645A (en) * | 2020-10-16 | 2022-04-22 | 上海汽车集团股份有限公司 | Fault detection method of capacitive sensor in diesel engine and related equipment |
-
2013
- 2013-02-07 CN CN 201320071512 patent/CN203054171U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529345A (en) * | 2013-09-23 | 2014-01-22 | 国家电网公司 | Substation 35kV capacitor discharge coil operating state monitoring method and device |
| CN103529345B (en) * | 2013-09-23 | 2016-07-06 | 国家电网公司 | Transformer station 35kV capacitor discharge coil running state monitoring method |
| CN114383645A (en) * | 2020-10-16 | 2022-04-22 | 上海汽车集团股份有限公司 | Fault detection method of capacitive sensor in diesel engine and related equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |
|
| CX01 | Expiry of patent term |