CN107783000A - Auxiliary reclay induced voltage shielding-RC speed selects test box - Google Patents
Auxiliary reclay induced voltage shielding-RC speed selects test box Download PDFInfo
- Publication number
- CN107783000A CN107783000A CN201711280048.2A CN201711280048A CN107783000A CN 107783000 A CN107783000 A CN 107783000A CN 201711280048 A CN201711280048 A CN 201711280048A CN 107783000 A CN107783000 A CN 107783000A
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- Prior art keywords
- auxiliary reclay
- resistance
- voltage
- test box
- circuit output
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- 238000012360 testing method Methods 0.000 title claims abstract description 23
- 239000003990 capacitor Substances 0.000 claims abstract description 18
- 230000005611 electricity Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The present invention relates to auxiliary reclay induced voltage shielding-RC speed to select test box, external cable access Single port is connected with circuit output Single port by first line, external cable accesses Two-port netwerk and passes through the second connection with circuit output Two-port netwerk, ammeter one end is connected with the first line, one end of the ammeter other end and adjustable resistance connects, the other end of adjustable resistance and one end of tunable capacitor connect, the other end of tunable capacitor is connected with the second connection, first voltage table is attempted by the both ends of tunable capacitor, two ends of auxiliary reclay coil are connected between circuit output Single port and circuit output Two-port netwerk, second voltage table is attempted by the both ends of auxiliary reclay coil.The calculating by complexity is not required in engineering site, you can quickly choose suitable resistance, capacitance, finally utilize simple component using the present invention（Resistance, electric capacity）, eliminate the influence that induced voltage is brought.
Description
Technical field
The invention belongs to electric secondary control field, and in particular to a kind of auxiliary reclay induced voltage shielding-RC speed choosings
Test box.
Background technology
Ac control circuit extensive use in electric secondary circuit, when control circuit is longer, cable core over the ground or
Stray capacitance voltage, i.e. induced voltage can be produced between core.In alternating current 220V control loop, induced voltage highest can reach
To 150V, it is sufficient to drive auxiliary reclay to malfunction, hidden danger is brought to safety in production.
In electrical engineering, this problem is found, and has often come into the power transmission debugging stage.Solve this problem to lead to
It can often use and redesign control loop, introduce DC control, change loop structure；Or purchase again, cabling.Not only
Add human cost, material cost, also can schedule delays, have a strong impact on the normal production schedule of enterprise.
The content of the invention
It is an object of the invention to provide a kind of auxiliary reclay induced voltage shielding-RC speed to select test box.Utilize this hair
The bright calculating being not required in engineering site by complexity, you can suitable resistance, capacitance are quickly chosen, it is final using simple
Component（Resistance, electric capacity）, eliminate the influence that induced voltage is brought.
The technical solution adopted by the present invention：Auxiliary reclay induced voltage shielding-RC speed selects test box, and it includes a case
Body, in addition to be arranged on box house external cable access Single port, external cable access Two-port netwerk, ammeter, adjustable electric
Resistance, tunable capacitor, first voltage table, circuit output Single port, circuit output Two-port netwerk, auxiliary reclay coil and second voltage
Table, it is characterised in that external cable access Single port is connected with circuit output Single port by first line, external cable access
Two-port netwerk is connected with circuit output Two-port netwerk by the second connection, ammeter one end with the first line, and ammeter is another
One end and one end of adjustable resistance connect, and the other end of adjustable resistance and one end of tunable capacitor connect, tunable capacitor it is another
End is connected with the second connection, and first voltage table is attempted by the both ends of tunable capacitor, and two ends of auxiliary reclay coil are connected on
Between circuit output Single port and circuit output Two-port netwerk, second voltage table is attempted by the both ends of auxiliary reclay coil.
Further, the ammeter is 0-30mA alternating current ammeter.
Further, the resistance of the adjustable resistance is 10 Ω ~ 10k Ω, and precision is ± 0.05%, rated power 50W.
Further, the specification of tunable capacitor is 25 ~ 600pF, rated voltage 300V.
Further, first voltage table and second voltage table are the voltage for exchanging 0 ~ 400V.
In addition, present invention also offers a kind of test that test box is selected using auxiliary reclay induced voltage shielding-RC speed
Method, above-mentioned test box is accessed in tested loop, by adjusting adjustable resistance and tunable capacitor so that second voltage table
Middle magnitude of voltage reduces to minimum, now the current value in tested loop is measured with ammeter, with reference to the adjustable resistance after adjustment
Value, utilizes formula P=Irc2* R, the performance number of resistance according to needed for calculating, then choose the resistance of needs and the resistance of power；
According to the capacitance after the reading of first voltage table and adjustment, the electric capacity of the stress levels of needs is chosen.
Its advantage is the present invention compared with prior art：The advantage of the invention is that quickly draw elimination exchange control
The resistance and capacitance of loop induced voltage, adapt to all kinds of scenes, to shield influence of the induced voltage to control system.The present invention
Cost is cheap, realization is simple, is embodied in and above-mentioned component is integrated in chamber, be easy to carry, whole chamber system
Make only to need a small amount of resistance, inductance and electric meter, the waste of material and the delay of duration are avoided with the cost of polar region.
Brief description of the drawings
Fig. 1 is the test circuit connection diagram of test box of the present invention.
Embodiment
As shown in figure 1, a kind of auxiliary reclay induced voltage shielding-RC speed selects test box, meet for testing at the scene
Resistance value, the capacitance of auxiliary reclay coil both ends induced voltage are eliminated in tried loop.It includes a casing, in addition to sets
Put the external cable access Single port 1 in box house, external cable access Two-port netwerk 2, ammeter 3, adjustable resistance 4, adjustable
Electric capacity 5, first voltage table 6, circuit output Single port 7, circuit output Two-port netwerk 8, auxiliary reclay coil 9 and second voltage table
10, external cable access Single port 1 is connected with circuit output Single port 7 by first line 11, external cable access Two-port netwerk 2
It is connected with circuit output Two-port netwerk 8 by the second circuit 12, the one end of ammeter 3 is connected with first line 11, the other end of ammeter 3
Be connected with one end of adjustable resistance 4, the other end of adjustable resistance 4 is connected with one end of tunable capacitor 5, tunable capacitor 5 it is another
End is connected connection with the second circuit 12, and first voltage table 6 is attempted by the both ends of tunable capacitor 5, the both ends of auxiliary reclay coil 9
It is connected between circuit output Single port 7 and circuit output Two-port netwerk 8, second voltage table 10 is attempted by auxiliary reclay coil 9
Both ends.
The alternating current ammeter that ammeter 3 in the present invention is 0-30mA.The resistance of adjustable resistance 4 is 10 Ω ~ 10k Ω, essence
Spend for ± 0.05%, rated power 50W.The specification of tunable capacitor 5 is 25 ~ 600pF, rated voltage 300V.First voltage table 6
It is the voltage that exchanges 0 ~ 400V with second voltage table 10.
One kind selects the method for testing of test box using above-mentioned auxiliary reclay induced voltage shielding-RC speed, by above-mentioned survey
Try in the tested loop of case access, by adjusting adjustable resistance 4 and tunable capacitor 5 so that magnitude of voltage subtracts in second voltage table 10
To current value that is minimum, being now tested with the measurement of ammeter 3 in loop, with reference to the value of the adjustable resistance 4 after adjustment, public affairs are utilized
Formula P=Irc2*R, the performance number of resistance according to needed for calculating, then choose the resistance of needs and the resistance of power；According to the first electricity
Capacitance after the reading of pressure table 6 and adjustment, choose the electric capacity of the stress levels of needs.
General principle is using spuious between auxiliary reclay coil both ends parallel resistance, electric capacity, cable core of releasing
Capacitance charge, reduce induced voltage.Using electric meter, facilitate electric current, the voltage in each loop of field observation, to provide resistance
The selection ground of power and electric capacity stress levels.
Claims (6)
1. auxiliary reclay induced voltage shielding-RC speed selects test box, it includes a casing, in addition to is arranged on box house
External cable access Two-port netwerk, ammeter, adjustable resistance, tunable capacitor, first voltage table, circuit output Single port, circuit
Export Two-port netwerk, auxiliary reclay coil and second voltage table, it is characterised in that external cable accesses Single port and circuit output
Single port is connected by first line, and external cable access Two-port netwerk passes through the second connection, electricity with circuit output Two-port netwerk
Flow table one end is connected with the first line, one end connection of the ammeter other end and adjustable resistance, the other end of adjustable resistance
It is connected with one end of tunable capacitor, the other end of tunable capacitor is connected with the second connection, and first voltage table is attempted by adjustable
The both ends of electric capacity, two ends of auxiliary reclay coil are connected between circuit output Single port and circuit output Two-port netwerk, the second electricity
Pressure table is attempted by the both ends of auxiliary reclay coil.
2. auxiliary reclay induced voltage shielding-RC speed according to claim 1 selects test box, it is characterised in that described
Ammeter is 0-30mA alternating current ammeter.
3. auxiliary reclay induced voltage shielding-RC speed according to claim 1 selects test box, it is characterised in that described
The resistance of adjustable resistance is 10 Ω ~ 10k Ω, and precision is ± 0.05%, rated power 50W.
4. auxiliary reclay induced voltage shielding-RC speed according to claim 1 selects test box, it is characterised in that adjustable
The specification of electric capacity is 25 ~ 600pF, rated voltage 300V.
5. auxiliary reclay induced voltage shielding-RC speed according to claim 1 selects test box, it is characterised in that first
Voltmeter and second voltage table are the voltage for exchanging 0 ~ 400V.
A kind of 6. survey that test box is selected using any described auxiliary reclay induced voltage shielding-RC speed of claim 1 to 5
Method for testing, it is characterised in that access the test box described in claim 1 in tested loop, by adjusting adjustable resistance
And tunable capacitor so that magnitude of voltage reduces to minimum in second voltage table, now measures the electric current in tested loop with ammeter
Value, with reference to the value of the adjustable resistance after adjustment, utilizes formula P=Irc2* R, the performance number of resistance according to needed for calculating, then select
Take the resistance of needs and the resistance of power；According to the capacitance after the reading of first voltage table and adjustment, the pressure-resistant of needs is chosen
The electric capacity of grade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711280048.2A CN107783000A (en) | 2017-12-06 | 2017-12-06 | Auxiliary reclay induced voltage shielding-RC speed selects test box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711280048.2A CN107783000A (en) | 2017-12-06 | 2017-12-06 | Auxiliary reclay induced voltage shielding-RC speed selects test box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107783000A true CN107783000A (en) | 2018-03-09 |
Family
ID=61431153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711280048.2A Pending CN107783000A (en) | 2017-12-06 | 2017-12-06 | Auxiliary reclay induced voltage shielding-RC speed selects test box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107783000A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201382971Y (en) * | 2009-04-18 | 2010-01-13 | 常爱军 | Novel test pencil |
| CN202167844U (en) * | 2011-07-13 | 2012-03-14 | 中冶华天工程技术有限公司 | Terminal pluggable AC induced voltage eliminator |
| CN202870208U (en) * | 2012-10-18 | 2013-04-10 | 嘉兴电力局 | Anti-induction voltage power transmission line power frequency parameter testing auxiliary apparatus |
| CN202994960U (en) * | 2012-11-30 | 2013-06-12 | 衡阳风顺车桥有限公司 | Withstanding voltage tester |
| CN103809040A (en) * | 2012-11-06 | 2014-05-21 | 昆山万丰电子有限公司 | Lightning current surge testing stand |
| CN104362607A (en) * | 2014-11-21 | 2015-02-18 | 埃泰克汽车电子(芜湖)有限公司 | Protection circuit for driving inductive load relay |
| CN205666614U (en) * | 2016-06-03 | 2016-10-26 | 新兴铸管股份有限公司 | Electrical apparatus control circuit's induced voltage suppression circuit and electrical apparatus control circuit |
| CN206003416U (en) * | 2016-07-06 | 2017-03-08 | 高贤明 | Modular electricity teaching experimental provision |
| CN207623427U (en) * | 2017-12-06 | 2018-07-17 | 朱月良 | Intermediate relay induced voltage shielding-RC speed selects test box |
-
2017
- 2017-12-06 CN CN201711280048.2A patent/CN107783000A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201382971Y (en) * | 2009-04-18 | 2010-01-13 | 常爱军 | Novel test pencil |
| CN202167844U (en) * | 2011-07-13 | 2012-03-14 | 中冶华天工程技术有限公司 | Terminal pluggable AC induced voltage eliminator |
| CN202870208U (en) * | 2012-10-18 | 2013-04-10 | 嘉兴电力局 | Anti-induction voltage power transmission line power frequency parameter testing auxiliary apparatus |
| CN103809040A (en) * | 2012-11-06 | 2014-05-21 | 昆山万丰电子有限公司 | Lightning current surge testing stand |
| CN202994960U (en) * | 2012-11-30 | 2013-06-12 | 衡阳风顺车桥有限公司 | Withstanding voltage tester |
| CN104362607A (en) * | 2014-11-21 | 2015-02-18 | 埃泰克汽车电子(芜湖)有限公司 | Protection circuit for driving inductive load relay |
| CN205666614U (en) * | 2016-06-03 | 2016-10-26 | 新兴铸管股份有限公司 | Electrical apparatus control circuit's induced voltage suppression circuit and electrical apparatus control circuit |
| CN206003416U (en) * | 2016-07-06 | 2017-03-08 | 高贤明 | Modular electricity teaching experimental provision |
| CN207623427U (en) * | 2017-12-06 | 2018-07-17 | 朱月良 | Intermediate relay induced voltage shielding-RC speed selects test box |
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