CN207473019U - A kind of 110kV or 220kV substations step voltage detection insulated shoes - Google Patents
A kind of 110kV or 220kV substations step voltage detection insulated shoes Download PDFInfo
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- CN207473019U CN207473019U CN201721522824.0U CN201721522824U CN207473019U CN 207473019 U CN207473019 U CN 207473019U CN 201721522824 U CN201721522824 U CN 201721522824U CN 207473019 U CN207473019 U CN 207473019U
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- controller
- shoe cover
- potential difference
- current potential
- comparator circuit
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Abstract
The utility model discloses a kind of 110kV or 220kV substations step voltage detection insulated shoes, including insulation shoe cover, shoe cover bottom surface front-end and back-end are respectively arranged with probe, shoe cover side is provided with alarm and voice module, current potential difference detecting circuit, voltage comparator circuit and controller are additionally provided on shoe cover, probe is connected with current potential difference detecting circuit, current potential difference detecting circuit output terminal is connected with voltage comparator circuit, voltage comparator circuit output terminal is connected with controller, and controller output end is connected respectively with alarm and voice module；The insulated shoes is capable of detecting when ground short circuit accident, so as to give warning in advance, can guarantee personnel safety, has reached safe and stable, efficient working method；In addition, its simple in structure, easy for installation and the various ground of adaptation step voltage detection.
Description
Technical field
The utility model is related to voltage of power detection instrument field, more particularly to a kind of 110kV or 220kV substations stride
Voltage detecting insulated shoes.
Background technology
Since circuit is when single-phase earthing or multiphase are grounded, can cause to search the larger problem of trouble point difficulty；Secondly, it examines
Consider traditional insulated shoes does not have warning function to step voltage.In small current neutral grounding system, when generation circuit single-phase earthing
When singlephase earth fault occurs for failure or electrical equipment, since walkaround inspection personnel can not have found trouble point, it is most likely that hair
Raw step voltage casualty accident causes personnel to get an electric shock dead.Thus, how to solve to make an inspection tour in 110kV and 220kV substations station
Step voltage is injured caused by human body in journey, just as a urgent problem needed to be solved in electric system.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of step voltage detection insulation of 110kV or 220kV substations
Footwear can carry out detection early warning work in advance, judge to 110kV and 220kV substations station equipment when earth fault occurs
Go out earth fault occurs, step voltage accident occurs so as to which tour personnel be avoided to be strayed into.
The purpose of this utility model is achieved through the following technical solutions：
A kind of 110kV or 220kV substations step voltage detection insulated shoes, including insulation shoe cover, before the shoe cover bottom surface
End and rear end are respectively arranged with probe, and the shoe cover side is provided with alarm and voice module, is additionally provided on the shoe cover
Current potential difference detecting circuit, voltage comparator circuit and controller, the probe are connected with current potential difference detecting circuit, the potential difference inspection
Slowdown monitoring circuit output terminal is connected with voltage comparator circuit, and the voltage comparator circuit output terminal is connected with controller, the controller
Output terminal is connected respectively with alarm and voice module.
Further, display is additionally provided on the shoe cover, the input terminal of the display is connected with controller.
Further, the output terminal of the controller is also associated with wireless sending module, and the wireless sending module passes through
Wireless signal is connected with monitoring equipment.
Further, the reference voltage V in the voltage comparator circuit is 40v.
The beneficial effects of the utility model are：
A kind of 110kV or 220kV substations step voltage detection insulated shoes of the utility model, is capable of detecting when to be grounded short
Road accident so as to give warning in advance, can guarantee personnel safety, reach safe and stable, efficient working method；In addition, its structure
Simply, step voltage detection that is easy for installation and adapting to various ground.
Other advantages, target and feature of the utility model will be explained in the following description to a certain extent
State, and to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter or
Person can be instructed from the practice of the utility model.The target of the utility model and other advantages can be said by following
Bright book is realized and is obtained.
Description of the drawings
In order to make the purpose of this utility model, technical solution and advantage clearer, below in conjunction with attached drawing to this practicality
It is novel to be described in further detail, wherein：
Fig. 1 is the utility model bottom view；
Fig. 2 is the utility model vertical view；
Fig. 3 is the utility model circuit diagram.
Specific embodiment
Hereinafter reference will be made to the drawings, and the preferred embodiment of the utility model is described in detail.It is it should be appreciated that preferably real
Example is applied only for illustrating the utility model rather than in order to limit the scope of protection of the utility model.
As shown in Figs. 1-3, a kind of 110kV or 220kV substations step voltage detection insulated shoes, including insulation shoe cover 10,
Shoe cover bottom surface front-end and back-end are respectively arranged with probe 1, and shoe cover side is provided with alarm 5 and voice module, and alarm is best
It is buzzer siren, voice module can be additionally provided with current potential difference detecting circuit, voltage compares with real-time broadcasting voltage value on shoe cover
Circuit and controller, probe are connected with current potential difference detecting circuit, and current potential difference detecting circuit output terminal is connected with voltage comparator circuit,
Voltage comparator circuit output terminal is connected with controller, and controller output end is connected respectively with alarm and voice module.
Display 8 is additionally provided on shoe cover, the input terminal of display is connected with controller, can show voltage value.
The output terminal of controller is also associated with wireless sending module, and wireless sending module passes through wireless signal and monitoring equipment phase
Even, remote monitoring can be carried out, to make counter-measure in time.
Reference voltage V in voltage comparator circuit is 40v.
The insulated shoes operation principle is：Two tips of probe are equivalent to voltage test pencil pen tip, probe by connection in
The data information measured is passed in current potential difference detecting circuit by current potential difference detecting circuit.The output terminal of current potential difference detecting circuit
It is connect with voltage comparator circuit, realizes that measurement data information is passed to voltage comparator circuit, pass through what is set with reference voltage V
40V compares, if more than or less than setting value, result of the comparison then is fed back to controller.Since alarm is connected to control
Device processed, when step voltage reaches limit value, buzzer (loud speaker) module in alarm will alarm, and voice module is reported
Voltage value is reminded work of transformer substation personnel that there are earth faults, is inhibited access to herein.
Finally illustrate, above example is merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng
The utility model is described in detail according to preferred embodiment, it will be understood by those of ordinary skill in the art that, it can be to this
The technical solution of utility model is modified or replaced equivalently, should all without departing from the objective and range of the technical program
Cover in the right of the utility model.
Claims (4)
1. a kind of 110kV or 220kV substations step voltage detection insulated shoes, it is characterised in that：Including insulation shoe cover, the footwear
Set bottom surface front-end and back-end are respectively arranged with probe, and the shoe cover side is provided with alarm and voice module, on the shoe cover
Current potential difference detecting circuit, voltage comparator circuit and controller are additionally provided with, the probe is connected with current potential difference detecting circuit, described
Current potential difference detecting circuit output terminal is connected with voltage comparator circuit, and the voltage comparator circuit output terminal is connected with controller, institute
Controller output end is stated respectively with alarm and voice module to be connected.
2. a kind of 110kV or 220kV substations step voltage according to claim 1 detects insulated shoes, it is characterised in that：
Display is additionally provided on the shoe cover, the input terminal of the display is connected with controller.
3. a kind of 110kV or 220kV substations step voltage according to claim 1 or 2 detects insulated shoes, feature exists
In：The output terminal of the controller is also associated with wireless sending module, and the wireless sending module passes through wireless signal and monitoring
Machine is connected.
4. a kind of 110kV or 220kV substations step voltage according to claim 1 detects insulated shoes, it is characterised in that：
Reference voltage V in the voltage comparator circuit is 40v.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721522824.0U CN207473019U (en) | 2017-11-15 | 2017-11-15 | A kind of 110kV or 220kV substations step voltage detection insulated shoes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721522824.0U CN207473019U (en) | 2017-11-15 | 2017-11-15 | A kind of 110kV or 220kV substations step voltage detection insulated shoes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207473019U true CN207473019U (en) | 2018-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721522824.0U Active CN207473019U (en) | 2017-11-15 | 2017-11-15 | A kind of 110kV or 220kV substations step voltage detection insulated shoes |
Country Status (1)
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| CN (1) | CN207473019U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111044774A (en) * | 2019-12-16 | 2020-04-21 | 深圳供电局有限公司 | Potential difference monitoring circuit and method for power distribution facility |
-
2017
- 2017-11-15 CN CN201721522824.0U patent/CN207473019U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111044774A (en) * | 2019-12-16 | 2020-04-21 | 深圳供电局有限公司 | Potential difference monitoring circuit and method for power distribution facility |
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