CN103630794A - Method of warning on poor contact of primary loop of power equipment - Google Patents
Method of warning on poor contact of primary loop of power equipment Download PDFInfo
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- CN103630794A CN103630794A CN201310646297.4A CN201310646297A CN103630794A CN 103630794 A CN103630794 A CN 103630794A CN 201310646297 A CN201310646297 A CN 201310646297A CN 103630794 A CN103630794 A CN 103630794A
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- temperature
- primary circuit
- sealed packet
- loose contact
- fault
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Abstract
The invention belongs to the field of emergency warning and provides a method of warning on poor contact of a primary loop of power equipment. A temperature sensing sealed packet is provided; the temperature sensing sealed packet is provided with an open seam filled with low melting point melt so that a cavity that is closed at the normal temperature is formed; the cavity is filled with irritant gas; the temperature sensing sealed packet is disposed at the contact of the primary loop; a gas-sensitive probe is disposed inside a substation; if the contact of the primary loop has a temperature higher than the melting temperature of the low melting point metal, the low melting point metal in the open seam melts, and the irritant gas in the temperature sensing sealed packet leaks out; the gas-sensitive probe sends out a signal to remind operators of checking the 'poor contact' fault of primary equipment; heating fault caused by poor contact of the primary equipment is discovered by the non-electric-medium detection method, the 'poor contact' fault of the primary loop equipment is monitored, continuing of the fault is avoided. The method is widely applicable to the field of operation monitoring for substations.
Description
Technical field
The invention belongs to emergency alarm field, relate in particular to a kind of alarm method for the loose contact of power equipment primary circuit.
Background technology
High-Voltage Electrical Appliances combination sideboard is widely used at present, but its inner primary circuit (being usually said high pressure major loop) loose contact fault and phenomenon are difficult to monitoring in actual charging operation process, trace it to its cause, the operation operating voltage that is mainly High-Voltage Electrical Appliances combination sideboard is high, inner space is compact, thereby has caused in High-Voltage Electrical Appliances combination sideboard, existing conventional temperature survey/monitoring element being installed in addition; If but the primary circuit loose contact of High-Voltage Electrical Appliances combination sideboard and not found in time, its consequence will cause primary circuit equipment failure, blast etc., cause large-area power-cuts, and its nature of trouble is very severe and serious.
Now, each becomes, distribution substation adopts unattended operational mode very general, each subordinate becomes, the various operational factors of distribution substation, many by the data transfer mode of spot sensor → electric power data transmission network → server, be sent to the Centralized Monitoring chamber of higher level transformer station, concentrate and show and monitor.
Under this situation, High-Voltage Electrical Appliances combination sideboard primary circuit loose contact fault is more difficult to be found in time, therefore in actual motion work, in the urgent need to a kind of detection or the alarm method that can find in time High-Voltage Electrical Appliances combination sideboard primary circuit loose contact fault,
Summary of the invention
Technical matters to be solved by this invention is to provide the alarm method of a kind of power equipment primary circuit loose contact, it utilizes low-melting-point metal on temperature sensation sealed packet to detect the loose contact fault of power equipment primary circuit, utilize in temperature sensation sealed packet comprise strong smell the specific gas information that gives a warning, by the detection to specific gas in change, distribution substation room air, can find rapidly the primary circuit loose contact fault of High-Voltage Electrical Appliances combination sideboard, be particularly suitable for pressing in unmanned change, distribution substation the operation monitoring of electric appliance combined cabinet.
Technical scheme of the present invention is: the alarm method of a kind of power equipment primary circuit loose contact is provided, it is characterized in that described alarm method comprises the following steps:
One temperature sensation sealed packet is set;
On described temperature sensation sealed packet, open seam is set, in open seam, fills low-melting-point metal, make described temperature sensation sealed packet form a seal chamber under normal temperature state;
In described seal chamber, be filled with the particular stimulation gas of high concentration;
In the room at transformer station's High-Voltage Electrical Appliances combination sideboard place, air-sensitive detection probe or pick-up unit to described particular stimulation gas sensitization are set;
Described temperature sensation sealed packet is arranged on to the contact position of the inner primary circuit of High-Voltage Electrical Appliances combination sideboard;
Described temperature sensation sealed packet contacts or pressure contact setting naturally with the contact position of primary circuit, the temperature of temperature sensation sealed packet and the temperature of contact position, primary circuit is consistent or basically identical;
When the contact position of described primary circuit causes temperature to rise because of loose contact after, its temperature conduction is to described temperature sensation sealed packet;
If the temperature of contact position, primary circuit surpasses the temperature of fusion of described low-melting-point metal, the low-melting-point metal of filling in temperature sensation sealed packet open seam fusing, the high concentration particular stimulation gas overflowing in temperature sensation sealed packet;
Described particular stimulation gas outwards discharges by the gap of High-Voltage Electrical Appliances combination sideboard, the particular stimulation gas concentration that can detect at the described air-sensitive detection probe of the indoor formation of transformer station or pick-up unit, described air-sensitive detection probe or pick-up unit sends " gas concentration exceeds standard " signal, the loose contact fault that prompting operations staff searches primary circuit equipment;
Operations staff is to the site of the accident, adopt movable type or hand-held gas concentration detection apparatus, find the High-Voltage Electrical Appliances combination sideboard that particular stimulation gas concentration is the highest, be traceable to the particular location of generation " temperature rise is transfinited " faulty equipment, reach the monitoring object to primary circuit equipment loose contact fault, avoid the continuation development of fault, get rid of the possibility of large-area power-cuts.
Alarm method described in it is experienced sealed packet by set temperature, match with air-sensitive detection probe or pick-up unit, concentration to particular stimulation gas is monitored, " temperature rise is transfinited " failure message that primary circuit equipment is caused because of loose contact, externally send in time, prompting operations staff finds the fault symptom of a trend in time, arranges in time maintainer's treatment facility defect.
Alarm method described in it is by the detection method of non-electric medium, find " temperature rise is transfinited " fault causing because of primary circuit equipment loose contact, with air-sensitive detection probe or pick-up unit by the concentration overload alarm signal of detected particular stimulation gas, teletransmission, to the Centralized Monitoring chamber of higher level transformer station, is concentrated and is shown and monitor.
Further, inside at described temperature sensation sealed packet arranges spring, so that the open seam of described temperature sensation sealed packet is opened as early as possible after low-melting-point metal fusing, help the particular stimulation gas in temperature sensation sealed packet to overflow as early as possible, be convenient to air-sensitive detection probe or pick-up unit and send in time alerting signal.
Concrete, the particular stimulation gas described in it is sulfur dioxide gas.
Described in it, the melting temperature of low-melting-point metal is lower than 110 degree.
Concrete, the low-melting-point metal described in it is tin or terne metal.
Compared with the prior art, advantage of the present invention is:
1. by set temperature, experience sealed packet, match with air-sensitive detection probe or pick-up unit, the concentration of particular stimulation gas is monitored, can find in time " temperature rise is transfinited " fault that primary circuit equipment causes because of loose contact;
2. utilize air-sensitive detection probe or pick-up unit, by the monitoring method of non-electric medium, the concentration overload alarm signal of detected particular stimulation gas is exported or teletransmission, found " temperature rise is transfinited " fault causing because of primary circuit equipment loose contact;
3. utilize the data transmission network of existing electric system to transmit failure message, be specially adapted to adopt the operation monitoring of unattended change, distribution substation.
Accompanying drawing explanation
Fig. 1 is method step block diagram of the present invention;
Fig. 2 is the structural representation of temperature sensation sealed packet of the present invention.
In figure, 1 is temperature sensation sealed packet, and 2 is low-melting-point metal, and 3 is screw fixed orifice.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
In Fig. 1, technical scheme of the present invention provides the alarm method of a kind of power equipment primary circuit loose contact, and the alarm method described in it comprises the following steps:
One temperature sensation sealed packet is set;
On described temperature sensation sealed packet, open seam is set, in open seam, fills low-melting-point metal, make described temperature sensation sealed packet form a seal chamber under normal temperature state;
In described seal chamber, be filled with the particular stimulation gas of high concentration;
In the room at transformer station's High-Voltage Electrical Appliances combination sideboard place, air-sensitive detection probe or pick-up unit to described particular stimulation gas sensitization are set;
Described temperature sensation sealed packet is arranged on to the contact position of the inner primary circuit of High-Voltage Electrical Appliances combination sideboard;
Described temperature sensation sealed packet contacts or pressure contact setting naturally with the contact position of primary circuit, the temperature of temperature sensation sealed packet and the temperature of contact position, primary circuit is consistent or basically identical;
When the contact position of described primary circuit causes temperature to rise because of loose contact after, its temperature conduction is to described temperature sensation sealed packet;
If the temperature of contact position, primary circuit surpasses the temperature of fusion of described low-melting-point metal, the low-melting-point metal of filling in temperature sensation sealed packet open seam fusing, the high concentration particular stimulation gas overflowing in temperature sensation sealed packet;
Described particular stimulation gas outwards discharges by the gap of High-Voltage Electrical Appliances combination sideboard, the particular stimulation gas concentration that can detect at the described air-sensitive detection probe of the indoor formation of transformer station or pick-up unit, described air-sensitive detection probe or pick-up unit sends " temperature rise is transfinited " fault-signal, the loose contact fault that prompting operations staff searches primary circuit equipment;
Operations staff is to the site of the accident, adopt movable type or hand-held gas concentration detection apparatus, find the High-Voltage Electrical Appliances combination sideboard that particular stimulation gas concentration is the highest, be traceable to the particular location of generation " temperature rise is transfinited " faulty equipment, reach the monitoring object to primary circuit equipment loose contact fault, avoid the continuation development of fault, get rid of the possibility of large-area power-cuts.
This alarm method is experienced sealed packet by set temperature, match with air-sensitive detection probe or pick-up unit, concentration to particular stimulation gas is monitored, " temperature rise is transfinited " failure message that primary circuit equipment is caused because of loose contact, externally send in time, prompting operations staff finds the fault symptom of a trend in time, arranges in time maintainer's treatment facility defect.
This alarm method is by the detection method of non-electric medium, find " temperature rise is transfinited " fault causing because of primary circuit equipment loose contact, with air-sensitive detection probe or pick-up unit by the concentration overload alarm signal of detected particular stimulation gas, teletransmission, to the Centralized Monitoring chamber of higher level transformer station, is concentrated and is shown and monitor.
Further, inside at described temperature sensation sealed packet arranges spring, so that the open seam of described temperature sensation sealed packet is opened as early as possible after low-melting-point metal fusing, help the particular stimulation gas in temperature sensation sealed packet to overflow as early as possible, be convenient to air-sensitive detection probe or pick-up unit and send in time alerting signal.
In Fig. 2, on temperature sensation sealed packet 1, be provided with open seam, in open seam, be filled with low-melting-point metal 2, temperature sensation sealed packet is formed to a seal chamber under normal temperature state.
In the temperature sensation sealed packet of sealing, be filled with specific irritative gas; Its specific irritative gas is sulfur dioxide gas.
Described in it, the melting temperature of low-melting-point metal is lower than 110 degree; Its low-melting-point metal is tin or terne metal.
Temperature sensation sealed packet is through being fixed on equipment contact position, primary circuit to be monitored (the normally junction of primary circuit equipment or bus bar copper row) with the screw fixed orifice 3 of its one.
The technical program adds the non-electric medium of " high concentration sulfur dioxide gas " by " temperature sensation sealed packet ", the temperature that the increase of monitoring primary circuit contact resistance causes raises.
When the situation that occurrence temperature raises due to loose contact of the junction of primary circuit equipment or bus bar copper row, low-melting-point metal on the temperature sensation sealed packet connecting as one through screw and primary circuit equipment or bus bar copper row melts, the particular stimulation gas overflowing of filling in temperature sensation sealed packet, particular stimulation gas outwards discharges by the gap of High-Voltage Electrical Appliances combination sideboard, being arranged on transformer station indoor air-sensitive detection probe or pick-up unit detects, air-sensitive detection probe or pick-up unit send signal, teletransmission is to centralized control room, report to the police and signal output.
Due to the total architectural feature of High-Voltage Electrical Appliances combination sideboard, its strong smell is included in its intrinsic space substantially, and slowly outwards discharge by narrow and small gap, be formed on space, one section of inside and outside in period and can experience sulphuric dioxide smell, in the gap of its trouble unit, form strong sulphuric dioxide smell, the loose contact of prompting operations staff primary circuit equipment, and can think over the particular location that tracks occurrence temperature lift apparatus, reach the monitoring object to primary circuit equipment loose contact, avoid the continuation development of fault, the possibility of getting rid of large-area power-cuts.
The technical program, by the monitoring of gas sensor is set, by the information of primary circuit equipment loose contact, externally sends by the interior automated system of standing automatically, arranges in time maintainer to process defect.
Because the present invention adopts the monitoring method of non-electric medium, " temperature rise is transfinited " fault that the loose contact that utilizes low-melting-point metal on temperature sensation sealed packet to detect power equipment primary circuit causes, utilize in temperature sensation sealed packet comprise strong smell the specific gas information that gives a warning, by the monitoring to particular stimulation gas density in change, distribution substation room air, can find rapidly the primary circuit loose contact fault of High-Voltage Electrical Appliances combination sideboard, be particularly suitable for the operation monitoring of unmanned change, distribution substation mesohigh electric appliance combined cabinet.
The present invention can be widely used in the operation monitoring field of unmanned change, distribution substation mesohigh electric appliance combined cabinet.
Claims (7)
1. an alarm method for power equipment primary circuit loose contact, is characterized in that described alarm method comprises the following steps:
One temperature sensation sealed packet is set;
On described temperature sensation sealed packet, open seam is set, in open seam, fills low-melting-point metal, make described temperature sensation sealed packet form a seal chamber under normal temperature state;
In described seal chamber, be filled with the particular stimulation gas of high concentration;
In the room at transformer station's High-Voltage Electrical Appliances combination sideboard place, air-sensitive detection probe or pick-up unit to described particular stimulation gas sensitization are set;
Described temperature sensation sealed packet is arranged on to the contact position of the inner primary circuit of High-Voltage Electrical Appliances combination sideboard;
Described temperature sensation sealed packet contacts or pressure contact setting naturally with the contact position of primary circuit, the temperature of temperature sensation sealed packet and the temperature of contact position, primary circuit is consistent or basically identical;
When the contact position of described primary circuit causes temperature to rise because of loose contact after, its temperature conduction is to described temperature sensation sealed packet;
If the temperature of contact position, primary circuit surpasses the temperature of fusion of described low-melting-point metal, the low-melting-point metal of filling in temperature sensation sealed packet open seam fusing, the high concentration particular stimulation gas overflowing in temperature sensation sealed packet;
Described particular stimulation gas outwards discharges by the gap of High-Voltage Electrical Appliances combination sideboard, the particular stimulation gas concentration that can detect at the described air-sensitive detection probe of the indoor formation of transformer station or pick-up unit, described air-sensitive detection probe or pick-up unit sends " temperature rise is transfinited " fault-signal, the loose contact fault that prompting operations staff searches primary circuit equipment;
Operations staff is to the site of the accident, adopt movable type or hand-held gas concentration detection apparatus, find the High-Voltage Electrical Appliances combination sideboard that particular stimulation gas concentration is the highest, be traceable to the particular location of generation " temperature rise is transfinited " faulty equipment, reach the monitoring object to primary circuit equipment " loose contact " fault, avoid the continuation development of fault, get rid of the possibility of large-area power-cuts.
2. according to the alarm method of power equipment claimed in claim 1 primary circuit loose contact, alarm method described in it is characterized in that is experienced sealed packet by set temperature, match with air-sensitive detection probe or pick-up unit, concentration to particular stimulation gas is monitored, " temperature rise is transfinited " failure message that primary circuit equipment is caused because of loose contact, externally send in time, prompting operations staff finds the fault symptom of a trend in time, arranges in time maintainer's treatment facility defect.
3. according to the alarm method of power equipment claimed in claim 1 primary circuit loose contact, it is characterized in that described alarm method is by the detection method of non-electric medium, find " temperature rise is transfinited " fault causing because of primary circuit equipment loose contact, with air-sensitive detection probe or pick-up unit by the concentration overload alarm signal of detected particular stimulation gas, teletransmission, to the Centralized Monitoring chamber of higher level transformer station, is concentrated and is shown and monitor.
4. according to the alarm method of power equipment claimed in claim 1 primary circuit loose contact, it is characterized in that, in the inside of described temperature sensation sealed packet, spring is set, so that the open seam of described temperature sensation sealed packet is opened as early as possible after low-melting-point metal fusing, help the particular stimulation gas in temperature sensation sealed packet to overflow as early as possible, be convenient to air-sensitive detection probe or pick-up unit and send in time alerting signal.
5. according to the alarm method of power equipment claimed in claim 1 primary circuit loose contact, it is characterized in that described particular stimulation gas is sulfur dioxide gas.
6. according to the alarm method of power equipment claimed in claim 1 primary circuit loose contact, it is characterized in that the melting temperature of described low-melting-point metal is lower than 110 degree.
7. according to the alarm method of power equipment claimed in claim 1 primary circuit loose contact, it is characterized in that described low-melting-point metal is tin or terne metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310646297.4A CN103630794B (en) | 2013-12-04 | 2013-12-04 | A kind of alarm method of power equipment primary circuit loose contact |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310646297.4A CN103630794B (en) | 2013-12-04 | 2013-12-04 | A kind of alarm method of power equipment primary circuit loose contact |
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| Publication Number | Publication Date |
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| CN103630794A true CN103630794A (en) | 2014-03-12 |
| CN103630794B CN103630794B (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310646297.4A Active CN103630794B (en) | 2013-12-04 | 2013-12-04 | A kind of alarm method of power equipment primary circuit loose contact |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024300A (en) * | 2016-01-29 | 2017-08-08 | 深圳带路科技有限公司 | A kind of apparatus overheat alarm |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01320477A (en) * | 1988-06-21 | 1989-12-26 | Nissin Electric Co Ltd | Abnormal overheat detector |
| CN2357324Y (en) * | 1998-11-24 | 2000-01-05 | 徐永祥 | Temp monitor assembled with gas sensor |
| CN201035400Y (en) * | 2007-04-06 | 2008-03-12 | 刘瑞强 | Temperature measurement type electric fire disaster monitoring system |
| CN201464073U (en) * | 2009-05-06 | 2010-05-12 | 河南省电力公司焦作供电公司 | Overtemperature monitoring device of high voltage switch cabinet |
| CN102403655A (en) * | 2010-09-14 | 2012-04-04 | 河南省电力公司焦作供电公司 | Middle/high voltage switch cabinet temperature monitoring system based on electronic nose technology |
-
2013
- 2013-12-04 CN CN201310646297.4A patent/CN103630794B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01320477A (en) * | 1988-06-21 | 1989-12-26 | Nissin Electric Co Ltd | Abnormal overheat detector |
| CN2357324Y (en) * | 1998-11-24 | 2000-01-05 | 徐永祥 | Temp monitor assembled with gas sensor |
| CN201035400Y (en) * | 2007-04-06 | 2008-03-12 | 刘瑞强 | Temperature measurement type electric fire disaster monitoring system |
| CN201464073U (en) * | 2009-05-06 | 2010-05-12 | 河南省电力公司焦作供电公司 | Overtemperature monitoring device of high voltage switch cabinet |
| CN102403655A (en) * | 2010-09-14 | 2012-04-04 | 河南省电力公司焦作供电公司 | Middle/high voltage switch cabinet temperature monitoring system based on electronic nose technology |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024300A (en) * | 2016-01-29 | 2017-08-08 | 深圳带路科技有限公司 | A kind of apparatus overheat alarm |
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| CN103630794B (en) | 2016-03-30 |
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