CN108808772A - A kind of instrument for measuring partial discharge's charging process real-time inspection and control method and device - Google Patents
A kind of instrument for measuring partial discharge's charging process real-time inspection and control method and device Download PDFInfo
- Publication number
- CN108808772A CN108808772A CN201810570091.0A CN201810570091A CN108808772A CN 108808772 A CN108808772 A CN 108808772A CN 201810570091 A CN201810570091 A CN 201810570091A CN 108808772 A CN108808772 A CN 108808772A
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- relay
- normally opened
- opened contact
- charging
- coil
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- 238000007600 charging Methods 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 54
- 238000007689 inspection Methods 0.000 title claims abstract description 27
- 238000012544 monitoring process Methods 0.000 claims abstract description 19
- 241000593989 Scardinius erythrophthalmus Species 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 2
- 238000010277 constant-current charging Methods 0.000 abstract description 3
- 238000010280 constant potential charging Methods 0.000 abstract description 2
- 238000004880 explosion Methods 0.000 abstract description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 16
- 229910052744 lithium Inorganic materials 0.000 description 16
- 239000002360 explosive Substances 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
-
- H02J7/0091—
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of instrument for measuring partial discharge's charging process real-time inspection and control method and devices, the charging process of its rechargeable battery includes two stages, first stage is constant-current charging phase, second stage is constant voltage charging phase, voltage monitoring is carried out by voltage relay in the first stage, when reaching voltage threshold, into second stage, current monitoring is carried out by electric current relay, when reaching current threshold, charging has been expired, and it can automatically power off, it avoids and overcharges caused battery explosion, the problems such as fire and battery life are lost, realize the real-time inspection and control of charging process.
Description
Technical field
The invention belongs to the monitoring technical field of electrical equipment more particularly to a kind of high-tension switch cabinet instrument for measuring partial discharge
Charging process real-time inspection and control method and device.
Background technology
High-tension switch cabinet local discharge signal tester, for measuring the office in switchgear on substation, power plant and other places
Portion's discharge signal.Since switch socket is not easy to obtain in substation, and lithium built in high-tension switch cabinet local discharge signal tester
Battery often takes the mode for onsite application of taking after charging.But existing charge mode charged there are certain security risk
If nobody is on the scene in journey, or power-off, charger do not remain at charged state, easily lead to accumulator mistake in time after battery is full of
The accidents such as hot, damage or even spontaneous combustion, self-destruction, threaten life, the property safety of people.
In view of the deficiencies of the prior art, the present invention proposes a kind of instrument for measuring partial discharge's charging process real-time inspection and control side
Method and device can automatically cut off charge circuit when finding voltage, electric current or temperature anomaly, to test apparatus and protection people
The personal safety of member, property safety are significant.
Invention content
In view of the deficiencies of the prior art, the present invention provides a kind of instrument for measuring partial discharge's charging process real-time inspection and control side
Method and device.
It should be noted that due in lithium battery charging process there are one cut-off current and blanking voltage, more than wherein appointing
What one can all cause lithium battery irreversible damage；So charging process can be regarded as：It accesses after charger as constant current
Charging, while cell voltage is detected, when cell voltage is close to blanking voltage, it is transferred to constant voltage charging phase, while detecting charging
Electric current, charging current will be smaller and smaller, until charging current be less than threshold value, be considered as charging complete.
The present invention is to solve above-mentioned technical problem by the following technical solutions：A kind of instrument for measuring partial discharge's charging
Process real-time inspection and control method, including following steps：
Step（1）It starts to charge up：Power on, intermediate relay coil KM is attracted, and the corresponding normally opened contact of intermediate relay closes
It closes, charge circuit is connected, and charge power supply charges to rechargeable battery；
Step（2）Voltage monitoring：Voltage relay monitors the charging voltage of rechargeable battery, when the charging voltage of rechargeable battery reaches
When the voltage threshold of voltage relay setting, potential relay coil KV is attracted, and the corresponding normally opened contact of voltage relay is made to close
It closes, electric current relay access；
Step（3）Current monitoring：Electric current relay monitors the charging current of rechargeable battery, when the charging current of rechargeable battery is less than
When the current threshold of electric current relay setting, current relay coil KA is attracted, and keeps the corresponding normally-closed contact of electric current relay disconnected
It opens, normally opened contact closure, intermediate relay coil KM is powered off and its normally opened contact being closed is made to disconnect, and is stopped charging, is charged
Battery is fully charged.
Further, instrument for measuring partial discharge's charging process real-time inspection and control method further includes step（4）Temperature
Monitoring：In charging process, intermediate relay coil KM is attracted, and when corresponding normally opened contact is closed, temperature relay starts
Work, when monitoring that the temperature of rechargeable battery is more than the temperature threshold of temperature relay setting, judgement charging is abnormal, temperature after
Electric apparatus coil KW is attracted, and the corresponding normally-closed contact of temperature relay disconnects, normally opened contact is closed, the KM power-off of intermediate relay coil
And its corresponding normally opened contact is made to disconnect, stop charging；Meanwhile red eye is lit, buzzer sends out alarm；So as to work
Make personnel and find failure early, realize the overtemperature prote of charging process, avoid charging it is abnormal cause battery overheat, cause fire or
The generation of person's explosive event.
Further, the step（3）In, when rechargeable battery has been expired, greensignal light is lit, and reminds work people
Member, charging have been expired, and charge circuit has disconnected, timely deenergization socket.
Further, a kind of instrument for measuring partial discharge's charging process real-time inspection and control device is based on a kind of above-mentioned part
Discharge tester charging process real-time inspection and control method, including automatically power off module and sound and light alarm module；It is described from dynamic circuit breaker
Electric module is arranged between the charge power supply and rechargeable battery of high-tension switch cabinet instrument for measuring partial discharge；The sound and light alarm module
It is connect with the module that automatically powers off.
Further, the module that automatically powers off includes intermediate relay, voltage relay, electric current relay and temperature
Relay；The intermediate relay has two couples of normally opened contacts KM-1, KM-2 and coil KM；The voltage relay has a pair
Normally opened contact KV and coil KV；The electric current relay has a pair of of normally-closed contact KA-1, a pair of normally opened contact KA-2 and coil
KA；The temperature relay has a pair of of normally-closed contact KW-1, a pair of normally opened contact KW-2 and coil KW；
Temperature relay normally-closed contact KW-1, electric current relay normally-closed contact KA-1 and intermediate relay coil KM are connected in series with
Constitute the first series circuit；Intermediate relay normally opened contact KM-2 and potential relay coil KV is connected in series with the second series connection of composition
Circuit；Voltage relay normally opened contact KV and current relay coil KA, which is connected in series with, constitutes third series circuit；Temperature relay
Device coil KW is the 4th series circuit；
After first series circuit, the second series circuit, third series circuit and the 4th series circuit parallel connection with intermediate relay
The one end normally opened contact KM-1 is connected with sound and light alarm module；The other end of intermediate relay normally opened contact KM-1 connects with charge power supply
It connects；
Electric current relay normally opened contact KA-2, temperature relay normally opened contact KW-2 are series at two of sound and light alarm module respectively
In branch.
Further, the 4th series circuit further includes resistance 1R, the resistance 1R and the temperature relay coil
KW connects, and prevents from automatically powering off the first series circuit of module, the second series circuit and third caused by temperature relay short circuit
Series circuit is shorted.
Further, the sound and light alarm module includes resistance 2R and two branches；Two branches are respectively the first branch
And the second branch；One end of the resistance 2R is connect with charge power supply, and the other end is connect with the first branch and the second branch；It is described
The first branch is connected in series by electric current relay normally opened contact KA-2 and the first signal lamp；The second branch is by temperature
Degree relay normally open contact KW-2, buzzer and second signal lamp are connected in series.
Further, first signal lamp is greensignal light, and the second signal lamp is red eye.
Compared with prior art, instrument for measuring partial discharge's charging process real-time inspection and control method provided by the present invention and
The charging process of device, rechargeable battery includes two stages, and the first stage is constant-current charging phase, and second stage is filled for constant pressure
The electric stage carries out voltage monitoring by voltage relay in the first stage, when reaching voltage threshold, into second stage, by
Electric current relay carries out current monitoring, and when reaching current threshold, charging has been expired, and can be automatically powered off, and is avoided to overcharge and be drawn
The problems such as battery explosion, fire and the battery life risen is lost, realizes the real-time inspection and control of charging process；
The present invention realizes that rechargeable battery is charging also with the temperature-monitoring function in entire charging process by temperature relay
Temperature monitoring in the process, when there is overheating problem, buzzer sends out alarm, and red eye is lit, while can also be certainly
Dynamic control deenergization avoids the generation that battery temperature continues fire or explosive event caused by raising, overheat, not only
It only plays a protective role to rechargeable battery, to high-tension switch cabinet, instrument for measuring partial discharge also functions to protective effect, to testing crew
Safeguard protection be of great significance.
Description of the drawings
It, below will be to attached drawing needed in embodiment description in order to illustrate more clearly of technical scheme of the present invention
It is briefly described, it should be apparent that, the accompanying drawings in the following description is only one embodiment of the present of invention, general for this field
For logical technical staff, without creative efforts, other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of structure diagram of instrument for measuring partial discharge's charging process real-time inspection and control device of the present invention；
Fig. 2 is the electrical schematic diagram that the present invention automatically powers off module；
Wherein：1- charge power supplies, 2- automatically power off module, 3- sound and light alarm modules.
Specific implementation mode
With reference to the attached drawing in the embodiment of the present invention, the technical solution in the present invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of not making creative work,
It shall fall within the protection scope of the present invention.
As shown in Fig. 2, a kind of instrument for measuring partial discharge's charging process real-time inspection and control method provided by the present invention, packet
Include following steps：
Rechargeable battery is rechargeable lithium battery in the present embodiment.
Step（1）It starts to charge up：Power on, intermediate relay coil KM is attracted, and intermediate relay is corresponding normally opened tactile
Point KM-1 and KM-2 is closed, and charge circuit is connected, and charge power supply charges to rechargeable lithium battery；
Step（2）Voltage monitoring：Voltage relay monitors the charging voltage of rechargeable lithium battery, when the charging of rechargeable lithium battery
When voltage reaches the voltage threshold of voltage relay setting, potential relay coil KV is attracted, and keeps voltage relay corresponding often
Open contact KV closures, electric current relay access；
Voltage threshold is calculated according to the rated voltage of rechargeable lithium battery, the rechargeable lithium battery institute of different rated voltages
Corresponding voltage threshold is different；
Step（3）Current monitoring：Electric current relay monitors the charging current of rechargeable lithium battery, when the charging of rechargeable lithium battery
When electric current is less than the current threshold of electric current relay setting, current relay coil KA is attracted, and keeps electric current relay corresponding often
Closed contact KA-1 is disconnected, normally opened contact KA-2 is closed, intermediate relay coil KM power-off and the normally opened contact KM- that makes it be closed
1 and KM-2 is disconnected, and stops charging, and rechargeable battery is fully charged.
Current threshold is calculated according to the capacity of rechargeable lithium battery, corresponding to the rechargeable lithium battery of different capabilities
Current threshold be different, generally milliampere grade.
The real-time inspection and control method further includes step（4）Temperature monitoring：In charging process, intermediate relay coil KM
It is attracted, when corresponding normally opened contact KM-1 and KM-2 are closed, temperature relay is started to work, when monitoring rechargeable lithium battery
Temperature when being more than the temperature threshold of temperature relay setting, judgement charging is abnormal, and temperature relay coil KW is attracted, temperature after
The corresponding normally-closed contact KW-1 of electric appliance is disconnected, normally opened contact KW-2 is closed, and intermediate relay coil KM is powered off and it is made to be closed
Normally opened contact KM-1, KM-2 disconnect, stop charging；Meanwhile red eye HRd is lit, buzzer HAB sends out alarm；
So that staff has found failure early, the overtemperature prote of charging process is realized, avoid charging is abnormal from causing battery overheat, cause
The generation of fire or explosive event.
In the present embodiment, the temperature threshold set is 45 degree.
Step（4）In, when rechargeable lithium battery has been expired, greensignal light HGn is lit, and reminds staff, charging
It has been expired that, charge circuit has disconnected, timely deenergization socket.
As shown in Figure 1, a kind of instrument for measuring partial discharge's charging process real-time inspection and control device, is based on a kind of above-mentioned part
Discharge tester charging process real-time inspection and control method, including automatically power off module and sound and light alarm module；Automatically power off mould
Block is arranged between the charge power supply and rechargeable lithium battery of high-tension switch cabinet instrument for measuring partial discharge；Sound and light alarm module with from
Dynamic power-off modular connection.
As shown in Fig. 2, automatically power off module include intermediate relay, voltage relay, electric current relay and temperature after
Electric appliance；Intermediate relay has two couples of normally opened contacts KM-1, KM-2 and coil KM；Voltage relay has a pair of of normally opened contact KV
With coil KV；Electric current relay has a pair of of normally-closed contact KA-1, a pair of normally opened contact KA-2 and coil KA；Temperature relay has
There are a pair of of normally-closed contact KW-1, a pair of normally opened contact KW-2 and coil KW；
Temperature relay normally-closed contact KW-1, electric current relay normally-closed contact KA-1 and intermediate relay coil KM are connected in series with
Constitute the first series circuit；Intermediate relay normally opened contact KM-2 and potential relay coil KV is connected in series with the second series connection of composition
Circuit；Voltage relay normally opened contact KV and current relay coil KA, which is connected in series with, constitutes third series circuit；Temperature relay
Device coil KW is the 4th series circuit；
After first series circuit, the second series circuit, third series circuit and the 4th series circuit parallel connection with intermediate relay
The one end normally opened contact KM-1 is connected with sound and light alarm module；The other end of intermediate relay normally opened contact KM-1 connects with charge power supply
It connects；
Electric current relay normally opened contact KA-2, temperature relay normally opened contact KW-2 are series at two of sound and light alarm module respectively
In branch.
4th series circuit further includes resistance 1R, and resistance 1R is connected in series with temperature relay coil KW, prevents because of temperature
Relay short circuit, which causes to automatically power off the first series circuit of module, the second series circuit and third series circuit, to be shorted.
Sound and light alarm module includes resistance 2R and two branches；Two branches are respectively the first branch and the second branch；Electricity
One end of resistance 2R is connect with charge power supply, and the other end is connect with the first branch and the second branch；The first branch is by electric current relay
Device normally opened contact KA-2 and the first signal lamp are connected in series；The second branch is by temperature relay normally opened contact KW-2, bee
Ring device and second signal lamp are connected in series.
First signal lamp is greensignal light, and second signal lamp is red eye.
Above disclosed is only the specific implementation mode of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, can readily occur in variation or modification,
It is covered by the protection scope of the present invention.
Claims (8)
1. a kind of instrument for measuring partial discharge's charging process real-time inspection and control method, which is characterized in that including following steps：
Step（1）It starts to charge up：Power on, intermediate relay coil KM is attracted, and the corresponding normally opened contact of intermediate relay closes
It closes, charge circuit is connected, and charge power supply charges to rechargeable battery；
Step（2）Voltage monitoring：Voltage relay monitors the charging voltage of rechargeable battery, when the charging voltage of rechargeable battery reaches
When the voltage threshold of voltage relay setting, potential relay coil KV is attracted, and the corresponding normally opened contact of voltage relay is made to close
It closes, electric current relay access；
Step（3）Current monitoring：Electric current relay monitors the charging current of rechargeable battery, when the charging current of rechargeable battery is less than
When the current threshold of electric current relay setting, current relay coil KA is attracted, and keeps the corresponding normally-closed contact of electric current relay disconnected
It opens, normally opened contact closure, intermediate relay coil KM is powered off and its normally opened contact being closed is made to disconnect, and is stopped charging, is charged
Battery is fully charged.
2. a kind of instrument for measuring partial discharge's charging process real-time inspection and control method as described in claim 1, which is characterized in that
It further include step（4）Temperature monitoring：In charging process, intermediate relay coil KM is attracted, and corresponding normally opened contact is closed
When, temperature relay is started to work, and when monitoring that the temperature of rechargeable battery is more than the temperature threshold of temperature relay setting, is sentenced
Fixed charging is abnormal, and temperature relay coil KW is attracted, and the corresponding normally-closed contact of temperature relay disconnects, normally opened contact is closed, in
Between relay coil KM power-off and so that its corresponding normally opened contact is disconnected, stop charging；Meanwhile red eye is lit, bee
Ring device sends out alarm.
3. a kind of instrument for measuring partial discharge's charging process real-time inspection and control method as claimed in claim 1 or 2, feature exist
In the step（3）In, when rechargeable battery has been expired, greensignal light is lit.
4. a kind of instrument for measuring partial discharge's charging process real-time inspection and control device, based on a kind of office described in claim 1-3
Portion's discharge tester charging process real-time inspection and control method, which is characterized in that including automatically powering off module and sound-light alarm mould
Block；The module that automatically powers off is arranged between the charge power supply and rechargeable battery of high-tension switch cabinet instrument for measuring partial discharge；Institute
Sound and light alarm module is stated to connect with the module that automatically powers off.
5. a kind of instrument for measuring partial discharge's charging process real-time inspection and control device as claimed in claim 4, which is characterized in that
The module that automatically powers off includes intermediate relay, voltage relay, electric current relay and temperature relay；The centre after
Electric appliance has two couples of normally opened contacts KM-1, KM-2 and coil KM；The voltage relay has a pair of normally opened contact KV and coil
KV；The electric current relay has a pair of of normally-closed contact KA-1, a pair of normally opened contact KA-2 and coil KA；The temperature relay
With a pair of of normally-closed contact KW-1, a pair of normally opened contact KW-2 and coil KW；
Temperature relay normally-closed contact KW-1, electric current relay normally-closed contact KA-1 and intermediate relay coil KM are connected in series with
Constitute the first series circuit；Intermediate relay normally opened contact KM-2 and potential relay coil KV is connected in series with the second series connection of composition
Circuit；Voltage relay normally opened contact KV and current relay coil KA, which is connected in series with, constitutes third series circuit；Temperature relay
Device coil KW is the 4th series circuit；
After first series circuit, the second series circuit, third series circuit and the 4th series circuit parallel connection with intermediate relay
The one end normally opened contact KM-1 is connected with sound and light alarm module；The other end of intermediate relay normally opened contact KM-1 connects with charge power supply
It connects；
Electric current relay normally opened contact KA-2, temperature relay normally opened contact KW-2 are series at two of sound and light alarm module respectively
In branch.
6. a kind of instrument for measuring partial discharge's charging process real-time inspection and control device as claimed in claim 5, which is characterized in that
4th series circuit further includes resistance 1R, and the resistance 1R connects with the temperature relay coil KW.
7. a kind of instrument for measuring partial discharge's charging process real-time inspection and control device as claimed in claim 4, which is characterized in that
The sound and light alarm module includes resistance 2R and two branches；Two branches are respectively the first branch and the second branch；The electricity
One end of resistance 2R is connect with charge power supply, and the other end is connect with the first branch and the second branch；The first branch is by electric current
Relay normally open contact KA-2 and the first signal lamp are connected in series；The second branch is by temperature relay normally opened contact
KW-2, buzzer and second signal lamp are connected in series.
8. a kind of instrument for measuring partial discharge's charging process real-time inspection and control device as claimed in claim 7, which is characterized in that
First signal lamp is greensignal light, and the second signal lamp is red eye.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810570091.0A CN108808772A (en) | 2018-06-05 | 2018-06-05 | A kind of instrument for measuring partial discharge's charging process real-time inspection and control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810570091.0A CN108808772A (en) | 2018-06-05 | 2018-06-05 | A kind of instrument for measuring partial discharge's charging process real-time inspection and control method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108808772A true CN108808772A (en) | 2018-11-13 |
Family
ID=64088691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810570091.0A Pending CN108808772A (en) | 2018-06-05 | 2018-06-05 | A kind of instrument for measuring partial discharge's charging process real-time inspection and control method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108808772A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7137652B1 (en) * | 2020-12-15 | 2022-09-14 | 國家中山科學研究院 | Battery test system safety protection device and method |
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Application publication date: 20181113 |