CN111693854A - Circuit for simulating voltage drop and operation method thereof - Google Patents
Circuit for simulating voltage drop and operation method thereof Download PDFInfo
- Publication number
- CN111693854A CN111693854A CN202010587461.9A CN202010587461A CN111693854A CN 111693854 A CN111693854 A CN 111693854A CN 202010587461 A CN202010587461 A CN 202010587461A CN 111693854 A CN111693854 A CN 111693854A
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- contactor
- coil
- power supply
- current power
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000012360 testing method Methods 0.000 claims abstract description 70
- 238000006243 chemical reaction Methods 0.000 claims abstract description 40
- 238000004804 winding Methods 0.000 description 8
- 230000006378 damage Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Classifications
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- 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
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2832—Specific tests of electronic circuits not provided for elsewhere
- G01R31/2836—Fault-finding or characterising
- G01R31/2837—Characterising or performance testing, e.g. of frequency response
-
- 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
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2832—Specific tests of electronic circuits not provided for elsewhere
- G01R31/2836—Fault-finding or characterising
- G01R31/2844—Fault-finding or characterising using test interfaces, e.g. adapters, test boxes, switches, PIN drivers
Abstract
The invention discloses a circuit for simulating voltage drop, which comprises: a second DC power supply, a switch A, a transfer contactor, a tested contactor, a first DC power supply, a switch B, 18-25V DC configured by the second DC power supply, the power is converted to the 10-17V direct current configured by the first direct current power supply under the action of the conversion contactor, the power failure condition of the airplane during takeoff is simulated, and the data of the coil of the tested contactor is obtained from the test pin XIII and the test pin XIV, so that the problem that the analog circuit of the current acquisition contactor in power failure can not provide data support for the improvement of the current acquisition contactor is solved, after the technical scheme of the application is used for obtaining the data pair improvement of the contactor, the coil of the contactor can generate a stable magnetic field to ensure the contact stability of the contact, the stability of the contactor contact is guaranteed in the take-off process of the airplane, the stability of the circuit of the airplane in take-off is improved, and the safety accident that the airplane is likely to be damaged and killed is avoided.
Description
Technical Field
The invention relates to a circuit for simulating voltage drop and an operation method thereof, belonging to the technical field of aerospace detection circuits.
Background
The contactor is a switch controller for controlling strong current by weak current, and is widely applied to control circuits in various industrial fields due to high control reliability of the contactor on the circuits; the contactor used on the existing airplane is a direct current contactor, the voltage of a coil working power supply of the contactor is generally 18-25V, and because the power failure phenomenon can occur in the starting process of an airplane storage battery, namely after the airplane takes off, the voltage can drop by about 8V after the storage battery is connected for a period of time, the coil of the contactor cannot generate a stable magnetic field to ensure the contact stability of a contact, the stability of the contact of the contactor cannot be guaranteed in the taking-off process of the airplane, and once a circuit controlled by the contact of the contactor is powered off, the airplane can possibly have the safety accident of machine destruction and human death;
in the prior art, an analog circuit for collecting the contactor in power failure does not exist, so that data support cannot be provided for improvement of the contactor;
therefore, the following technical scheme of the application provides a voltage drop simulation circuit and an operation method thereof to simulate the power-down process of a contactor, so that data of the contactor during power-down is obtained, and data support is provided for improvement of the contactor.
Disclosure of Invention
To solve the above technical problem, the present invention provides a circuit for simulating voltage sag and an operating method thereof.
The invention also provides an operation method of the analog voltage drop circuit
The invention is realized by the following technical scheme.
The invention provides a circuit for simulating voltage drop, which comprises: the device comprises a second direct-current power supply, a switch A, a conversion contactor and a tested contactor, wherein the anode of the second direct-current power supply is electrically connected with the anode of the switch A, the cathode of the switch A is electrically connected with the anode of a normally closed contact of the conversion contactor, the cathode of the normally closed contact is electrically connected with the anode of a coil of the tested contactor, and the cathode of the tested contactor is grounded;
the negative pole of the switch A is electrically connected with the positive pole of a normally open contact of the tested contactor, the negative pole of the normally open contact is electrically connected with the positive pole of a coil of the conversion contactor, and the negative pole of the coil of the conversion contactor is grounded.
The direct-current power supply is characterized by further comprising a first direct-current power supply and a switch B, wherein the positive electrode of the first direct-current power supply is electrically connected with the positive electrode of the switch B, the negative electrode of the switch B is electrically connected with the positive electrode of a normally-open contact of the conversion contactor, and the negative electrode of the normally-open contact is electrically connected with the negative electrode of the normally-closed contact.
The testing device also comprises a testing pin XI and a testing pin XII, wherein the testing pin XI is electrically connected with the coil cathode of the conversion contactor, and the testing pin XII is electrically connected with the coil anode of the conversion contactor; and the data of the coil of the conversion contactor switched from the second direct-current power supply to the first direct-current power supply can be tested through the test pin XI and the test pin XII.
And the test pin XI is electrically connected with a coil cathode grounding wire of the tested contactor.
The test pin XI is conductively welded with the coil cathode of the conversion contactor; compared with winding, the power-on stability is improved.
The test pin XII is conductively welded with the coil anode of the conversion contactor; compared with winding, the power-on stability is improved.
The testing device also comprises a testing pin XIII and a testing pin XIV, wherein the testing pin XIII is electrically connected with the coil anode of the tested contactor, and the testing pin XIV is electrically connected with the coil cathode of the tested contactor; and the data of the coil of the tested contactor switched from the second direct current power supply to the first direct current power supply is conveniently tested through the test pin XIII and the test pin XIV.
The test pin XIII is conductively welded with the positive electrode of the coil of the tested contactor; compared with winding, the power-on stability is improved.
The test pin XIII is conductively welded with the coil cathode of the tested contactor; compared with winding, the power-on stability is improved.
The invention provides an operation method of an analog voltage drop circuit, which comprises the following steps:
the method comprises the following steps: the second direct-current power supply is configured with 18-25V direct current, the switch A is closed, the second direct-current power supply can directly provide the V direct-current power supply to a coil of the tested contactor, the normally open contact is closed, the coil of the conversion contactor is electrified, the normally closed contact on the conversion contactor is disconnected, the normally open contact is closed and connected, and at the moment, the coil voltage of the tested contactor is in a voltage supply state before the aircraft storage battery takes off;
at the moment, data of the coil of the conversion contactor are obtained through detection of a test pin XI and a test pin XII;
step two: the first direct-current power supply is configured with 10-17V direct current, the switch B is closed, the first direct-current power supply supplies power to a coil of the tested contactor through a closed normally-open contact, and the voltage of the coil of the tested contactor is in a voltage supply state of obtaining voltage power failure of the aircraft storage battery during takeoff;
at the moment, data of the coil of the tested contactor are acquired from the test pin XIII and the test pin XIV;
the invention has the beneficial effects that: the 18-25V direct current configured by the second direct current power supply is converted to the 10-17V direct current configured by the first direct current power supply under the action of the conversion contactor, the power failure condition of the airplane during takeoff is simulated, the data of a coil of the tested contactor is detected and obtained from the test pin XIII and the test pin XIV, the problem that an analog circuit of the existing acquisition contactor during power failure cannot provide data support for improvement is solved, after the data of the contactor is obtained through the technical scheme of the application, the coil of the contactor can generate a stable magnetic field to ensure the contact stability of the contact, the stability of the contact of the contactor is guaranteed in the takeoff process of the airplane, the stability of the circuit of the airplane during takeoff is improved, and the occurrence of safety accidents that the airplane is damaged by people is avoided.
Drawings
FIG. 1 is a schematic diagram of the circuit configuration of the present invention;
in the figure: 1-a first direct current power supply; 6-switch B; 3-switch A; 4-a transfer contactor; 41-normally closed contact; 42-normally open contact; 5-a contactor to be tested; 51-normally open contact.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1.
The invention relates to a circuit for simulating voltage drop, which comprises: the device comprises a second direct-current power supply 2, a switch A3, a conversion contactor 4 and a tested contactor 5, wherein the anode of the second direct-current power supply 2 is electrically connected with the anode of a switch A3 through a lead, the cathode of a switch A3 is electrically connected with the anode of a normally closed contact 41 of the conversion contactor 4 through a lead, the cathode of the normally closed contact 41 is electrically connected with the anode of a coil of the tested contactor 5 through a lead, and the cathode of the tested contactor 5 is grounded through a lead;
the negative pole of the switch A3 is electrically connected with the positive pole of the normally open contact 51 of the tested contactor 5 through a lead, the negative pole of the normally open contact 51 is electrically connected with the positive pole of the coil of the conversion contactor 4 through a lead, and the negative pole of the coil of the conversion contactor 4 is grounded through a lead.
The direct-current power supply further comprises a first direct-current power supply 1 and a switch B6, wherein the positive electrode of the first direct-current power supply 1 is electrically connected with the positive electrode of the switch B6 through a conducting wire, the negative electrode of the switch B6 is electrically connected with the positive electrode of a normally open contact 42 of the conversion contactor 4 through a conducting wire, and the negative electrode of the normally open contact 42 is electrically connected with the negative electrode of a normally closed contact 41 through a conducting wire.
The testing device also comprises a testing pin XI and a testing pin XII, wherein the testing pin XI is electrically connected with the coil cathode of the conversion contactor 4 through a lead, and the testing pin XII is electrically connected with the coil anode of the conversion contactor 4 through a lead; the data of the coil of the conversion contactor 4 switched from the second direct current power supply 2 to the first direct current power supply 1 can be tested through the test pin XI and the test pin XII.
And the test pin XI is electrically connected with a coil cathode grounding wire of the tested contactor 5.
The test pin XI is conductively welded with the coil cathode of the conversion contactor 4; compared with the winding by a lead, the power-on stability is improved.
The test pin XII is conductively welded with the coil anode of the conversion contactor 4; compared with the winding by a lead, the power-on stability is improved.
The testing device also comprises a testing pin XIII and a testing pin XIV, wherein the testing pin XIII is electrically connected with the coil anode of the tested contactor 5 through a lead, and the testing pin XIV is electrically connected with the coil cathode of the tested contactor 5 through a lead; the data of the coil of the tested contactor 5 switched from the second direct current power supply 2 to the first direct current power supply 1 is conveniently tested through the test pin XIII and the test pin XIV.
The test pin XIII is conductively welded with the positive pole of the coil of the tested contactor 5; compared with the winding by a lead, the power-on stability is improved.
The test pin XIII is conductively welded with the coil cathode of the tested contactor 5; compared with the winding by a lead, the power-on stability is improved.
The invention relates to an operation method of an analog voltage drop circuit, which comprises the following steps:
the method comprises the following steps: the second direct-current power supply 2 is configured with 18-25V direct current, the switch A3 is closed, the second direct-current power supply 2 can directly provide 18-25V direct-current power supply for a coil of the tested contactor 5, the normally open contact 51 is closed, the coil of the conversion contactor 4 is electrified, the normally closed contact 41 on the conversion contactor 4 is disconnected, the normally open contact 42 is closed and connected, and at the moment, the coil voltage of the tested contactor 5 is in a voltage supply state before the airplane storage battery takes off;
at the moment, data of a coil of the conversion contactor 4 is detected and obtained from a test pin XI and a test pin XII;
step two: the method comprises the following steps that a first direct current power supply 1 is configured with 10-17V direct current, a switch B6 is closed, the first direct current power supply 1 supplies power to a coil of a detected contactor 5 through closing a normally open contact 42, and at the moment, the coil voltage of the detected contactor 5 is in a voltage supply state of obtaining voltage power failure of an aircraft storage battery during takeoff;
at the moment, data of the coil of the tested contactor 5 are acquired from the test pin XIII and the test pin XIV;
the problem of present analog circuit that does not gather the contactor when falling the power failure can not provide data support for its improvement is solved, with the data pair improvement back that the technical scheme of this application acquireed the contactor for the contactor coil can produce the contact stability of stable magnetic field assurance contact, to the in-process that the aircraft was taking off, contactor contact stability has obtained the guarantee, has improved the aircraft and is taking off the stability of circuit, has avoided the aircraft probably to take place the condition emergence of the incident of machine damage people death.
Claims (10)
1. A circuit for simulating voltage sag, comprising: the device comprises a second direct-current power supply (2), a switch A (3), a conversion contactor (4) and a tested contactor (5), wherein the positive pole of the second direct-current power supply (2) is electrically connected with the positive pole of the switch A (3), the negative pole of the switch A (3) is electrically connected with the positive pole of a normally closed contact (41) of the conversion contactor (4), the negative pole of the normally closed contact (41) is electrically connected with the positive pole of a coil of the tested contactor (5), and the negative pole of the tested contactor (5) is grounded;
the negative pole of the switch A (3) is electrically connected with the positive pole of a normally open contact (51) of the tested contactor (5), the negative pole of the normally open contact (51) is electrically connected with the positive pole of a coil of the conversion contactor (4), and the negative pole of the coil of the conversion contactor (4) is grounded.
2. The circuit for simulating a voltage sag of claim 1, wherein: the direct-current power supply is characterized by further comprising a first direct-current power supply (1) and a switch B (6), wherein the positive electrode of the first direct-current power supply (1) is electrically connected with the positive electrode of the switch B (6), the negative electrode of the switch B (6) is electrically connected with the positive electrode of a normally-open contact (42) of the conversion contactor (4), and the negative electrode of the normally-open contact (42) is electrically connected with the negative electrode of a normally-closed contact (41).
3. The circuit for simulating voltage sag of claim 2, wherein: the testing device also comprises a testing pin XI and a testing pin XII, wherein the testing pin XI is electrically connected with the coil cathode of the conversion contactor (4), and the testing pin XII is electrically connected with the coil anode of the conversion contactor (4); the data of the coil of the conversion contactor (4) switched from the second direct current power supply (2) to the first direct current power supply (1) is convenient to test through the test pins XI and XII.
4. A circuit for simulating voltage sag according to claim 3, wherein: and the test pin XI is electrically connected with a coil cathode grounding wire of the tested contactor (5).
5. A circuit for simulating voltage sag according to claim 3, wherein: and the test pin XI is conductively welded with the coil cathode of the conversion contactor (4).
6. A circuit for simulating voltage sag according to claim 3, wherein: and the test pin XII is conductively welded with the coil anode of the conversion contactor (4).
7. A circuit for simulating voltage sag according to claim 1 or 3, wherein: the testing device also comprises a testing pin XIII and a testing pin XIV, wherein the testing pin XIII is electrically connected with the coil anode of the tested contactor (5), and the testing pin XIV is electrically connected with the coil cathode of the tested contactor (5); the data of the tested contactor (5) is convenient to test when the coil is switched from the second direct current power supply (2) to the first direct current power supply (1) through the test pin XIII and the test pin XIV.
8. The circuit for simulating a voltage sag of claim 7, wherein: the test pin XIII is electrically conductively connected to the coil anode of the contactor (5) to be tested.
9. The circuit for simulating a voltage sag of claim 7, wherein: the test pin XIII is electrically conductively connected with the coil cathode of the tested contactor (5).
10. A method of operating an analog voltage sag circuit, using the analog voltage sag circuit of any one of claims 1 to 9, comprising the steps of:
the method comprises the following steps: the second direct-current power supply (2) is configured with 18-25V direct current, the switch A (3) is closed, the second direct-current power supply (2) can directly provide 18-25V direct current power supply for a coil of the tested contactor (5), the normally open contact (51) is closed, the coil of the conversion contactor (4) is electrified, the normally closed contact (41) on the conversion contactor (4) is disconnected, the normally open contact (42) is closed and connected, and at the moment, the coil voltage of the tested contactor (5) is in a voltage supply state before the takeoff of the airplane storage battery;
step two: the first direct current power supply (1) is configured with 10-17V direct current, the switch B (6) is closed, the first direct current power supply (1) supplies power to a coil of the detected contactor (5) through closing the normally open contact (42), and the coil voltage of the detected contactor (5) is in a voltage supply state of voltage power failure of the airplane storage battery during takeoff.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010587461.9A CN111693854A (en) | 2020-06-24 | 2020-06-24 | Circuit for simulating voltage drop and operation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010587461.9A CN111693854A (en) | 2020-06-24 | 2020-06-24 | Circuit for simulating voltage drop and operation method thereof |
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| Publication Number | Publication Date |
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| CN111693854A true CN111693854A (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010587461.9A Pending CN111693854A (en) | 2020-06-24 | 2020-06-24 | Circuit for simulating voltage drop and operation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113776766A (en) * | 2021-01-12 | 2021-12-10 | 青岛鼎信通讯股份有限公司 | Voltage drop test device and method for IR46 electric meter calibrating device |
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Application publication date: 20200922 |
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| RJ01 | Rejection of invention patent application after publication |