CN112763901A - Time delay calibration device and calibration method for direct-current molded case circuit breaker - Google Patents
Time delay calibration device and calibration method for direct-current molded case circuit breaker Download PDFInfo
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- CN112763901A CN112763901A CN202011579756.8A CN202011579756A CN112763901A CN 112763901 A CN112763901 A CN 112763901A CN 202011579756 A CN202011579756 A CN 202011579756A CN 112763901 A CN112763901 A CN 112763901A
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- 230000003068 static effect Effects 0.000 claims abstract description 27
- KYIKRXIYLAGAKQ-UHFFFAOYSA-N abcn Chemical compound C1CCCCC1(C#N)N=NC1(C#N)CCCCC1 KYIKRXIYLAGAKQ-UHFFFAOYSA-N 0.000 claims description 4
- 238000012795 verification Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
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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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
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Abstract
The invention relates to a time delay calibration device, in particular to a time delay calibration device and a calibration method of a direct-current molded case circuit breaker, and belongs to the field of low-voltage electric appliance manufacturing. Including frame and moulded case circuit breaker, the upper end of frame be equipped with the moving contact subassembly, the lower extreme of frame be equipped with floating plate subassembly and static contact subassembly, floating plate subassembly, moving contact subassembly and static contact subassembly be movable connection. The automatic checking device has the advantages of no need of complex program control, simple structure, low cost, convenience in operation and high checking speed.
Description
Technical Field
The invention relates to a time delay calibration device, in particular to a time delay calibration device and a calibration method of a direct-current molded case circuit breaker, and belongs to the field of low-voltage electric appliance manufacturing.
Background
At present, a direct current molded case circuit breaker is usually replaced by an alternating current molded case circuit breaker, the direct current molded case circuit breaker is only single-phase, therefore, various different wiring modes are provided on the alternating current molded case circuit breaker, such as an AB phase, an AC phase, an ABC phase and an ABCN phase, different wiring is needed according to different application occasions of users, the traditional checking method is to connect corresponding phase contacts of the circuit breaker through flexible connection and fasten the corresponding phase contacts by bolts and nuts, and the method only needs a special current source and does not need a special clamp device, but has large workload of manual operation and low working efficiency, and is not suitable for batch production.
Disclosure of Invention
The invention mainly solves the defects in the prior art and provides the time delay calibration device of the direct-current molded case circuit breaker and the calibration method thereof, wherein the time delay calibration device is simple in structure, is suitable for quick and easy mass time delay calibration and is suitable for mass time delay calibration.
The technical problem of the invention is mainly solved by the following technical scheme:
a delay calibration device of a direct current molded case circuit breaker comprises a rack and the molded case circuit breaker, wherein a moving contact component is arranged at the upper end of the rack, a floating plate component and a fixed contact component are arranged at the lower end of the rack, and the floating plate component, the moving contact component and the fixed contact component are movably connected;
the moving contact component comprises a moving contact which can extend downwards;
the static contact component comprises an extensible static contact;
the floating plate assembly comprises a plastic shell circuit breaker movably clamped with the outer wall of the rack, a floating plate capable of moving horizontally is arranged in the rack, the floating plate is correspondingly connected to the static contact in a flexible connection manner, and the moving contact moves downwards to make movable contact with the static contact;
the number of the static contacts, the number of the movable contacts and the number of the flexible connections are respectively 6.
Preferably, the molded case circuit breaker is fixed by an upper moving contact and a lower moving contact, the upper moving contact and the lower moving contact are respectively controlled by a vertical cylinder, the floating plate is displaced by a horizontal cylinder, the floating plate is connected with the frame by a screw rod, and a pressure spring which is in movable elastic compression joint with the floating plate is sleeved outside the screw rod.
Preferably, the moving contact is arranged at the bottom of the insulating plate, a moving contact cylinder for pushing the insulating plate to move downwards is arranged in the rack, and a swinging block is arranged between the moving contact cylinder and the insulating plate.
Preferably, each static contact is pushed by a static contact cylinder.
A calibration method of a delay calibration device of a direct current molded case circuit breaker is carried out according to the following steps:
the first step is as follows: fixing the molded case circuit breaker: the breaker is arranged on a panel of a shell, a hand valve is manually opened to enable a vertical cylinder piston rod to retract and drive a moving contact to move downwards, after the moving contact is in place, the moving member presses down a micro switch to drive an electromagnetic directional valve and drive a horizontal cylinder piston rod to extend out to drive a floating plate, a screw rod, an upper moving contact and a lower moving contact to move rightwards, the breaker is pressed on the panel, and meanwhile, the upper moving contact and the lower moving contact are in close contact with the breaker;
the second step is that: checking: according to the wiring requirement, the change-over switch is switched to a corresponding gear, so that a corresponding relay is closed, a corresponding electromagnetic directional valve is driven, a corresponding cylinder piston rod is extended out, a moving contact and a corresponding static contact are closed, and a constant current source is opened, so that the calibration can be carried out;
the third step: and correspondingly adjusting the circuit breaker according to the verification result:
when the circuit breaker works, according to a required checking mode, such as an AB phase, a change-over switch is turned to 1 gear, a relay KA1 is closed, an electromagnetic reversing valve YV1 is driven, a cylinder QG1 is closed, 1-3 phases of the circuit breaker are conducted, and direct current enters from a2 phase of the circuit breaker, flows through the 1 and 3 phases and exits from a4 phase;
if the AC phase is adopted, the change-over switch is turned to 2, the relay KA2 is closed, the electromagnetic directional valves YV2 and YV3 are driven, the cylinders QG2 and QG3 are closed, the circuit breakers 1-5 and 6-4 are conducted, and then direct current enters from the phase of the circuit breaker 2, flows through the phases 1, 5 and 6 and exits from the phase 4;
if ABC phase, the change-over switch is turned to 3 gear, the breaker KA3 is closed, the electromagnetic directional valves YV2 and YV4 are driven, the cylinders QG2 and QG4 are closed, the breaker is conducted in 1-5 phase and 6-3 phase, and then direct current enters from 2 phase, flows through 1, 5, 6 and 3 phase and exits from 4 phase;
if the ABCN phase is adopted, the change-over switch is turned to 4-gear, the relay KA4 is closed, the electromagnetic directional valves YV4, YV5 and YV6 are driven, the cylinders QG4, QG5 and QG6 are closed, the circuit breakers 1-7, 8-5 and 6-3 are conducted, and then direct current flows in from 2 and flows through 1, 7, 8, 5, 6 and 3 phases, and the direct current flows out of 4 phases;
the fourth step: disassembling the circuit breaker: the change-over switch is driven to the 0 gear, all relays are not conducted, all electromagnetic directional valves YV1, YV2, YV3, YV4, YV5 and YV6 are reset, cylinder piston rods are retracted, moving contacts are separated from static contacts, all phases of the circuit breaker are not electrified, then hand valves on a panel are operated manually, the horizontal cylinder piston rods are retracted, a floating plate, a pressure spring, a screw rod, an upper moving contact and a lower moving contact are driven to move leftwards, then the vertical cylinder piston rods are extended out, and the upper moving contacts are lifted upwards, so that the plastic shell circuit breaker can be taken down from the panel;
the fifth step: the calibration device current is turned off.
The action principle is as follows: the vertical cylinder piston rod retracts, the horizontal cylinder piston rod extends, the upper moving contact and the lower moving contact are in a compression state on each phase contact of the molded case circuit breaker, the upper moving contact and the lower moving contact are in corresponding connection with each static contact respectively, the end part of the cylinder piston rod is provided with a swinging block, an insulating plate and the moving contact are arranged below the swinging block, the insulating plate and the moving contact are connected together through a thread pair, and when the cylinder piston rod extends, the moving contact can be in close contact with the static.
The invention provides a time delay calibration device and a calibration method of a direct current molded case circuit breaker, which do not need complex program control, have simple structure and low cost, are convenient to operate and have high calibration speed.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic sectional view A-A of FIG. 1;
FIG. 3 is a schematic sectional view of B-B in FIG. 1;
FIG. 4 is a schematic diagram of the A \ B phase test structure of the present invention;
FIG. 5 is a schematic structural diagram of A \ C phase test in the present invention;
FIG. 6 is a schematic structural diagram of A \ B \ C phase test in the present invention;
FIG. 7 is a schematic structural diagram of A \ B \ C \ N phase test in the present invention;
FIG. 8 is a schematic view of a cylinder connection according to the present invention;
fig. 9 is a schematic diagram of the gear shift control in the present invention.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example 1: as shown in the figure, the delay calibration device of the direct-current molded case circuit breaker comprises a rack 1 and a molded case circuit breaker 2, wherein a movable contact assembly is arranged at the upper end of the rack 1, a floating plate assembly and a fixed contact assembly are arranged at the lower end of the rack 1, and the floating plate assembly, the movable contact assembly and the fixed contact assembly are movably connected;
the moving contact component comprises a moving contact 3 which can extend downwards;
the static contact component comprises an extensible static contact 4;
the floating plate assembly comprises a plastic shell circuit breaker 2 movably clamped with the outer wall of the frame 1, a floating plate 5 capable of moving horizontally is arranged in the frame 1, the floating plate 5 drives a flexible connection 6 to be correspondingly connected to a static contact 4, and the movable contact 3 moves downwards to make movable contact with the static contact 4;
the number of the static contacts 4, the number of the movable contacts 3 and the number of the flexible connections 6 are respectively 6.
The plastic case circuit breaker 2 is fixed through an upper moving contact 7 and a lower moving contact 8, the upper moving contact 7 and the lower moving contact 8 are respectively controlled through a vertical cylinder 9, the floating plate 5 is displaced through a horizontal cylinder 10, the floating plate 5 is connected with the frame 1 through a screw rod 11, and a pressure spring 12 which is in movable elastic compression joint with the floating plate 5 is sleeved outside the screw rod 11.
The moving contact 3 is arranged at the bottom of the insulating plate 13, a moving contact cylinder 14 for pushing the insulating plate 13 to move downwards is arranged in the rack 1, and a swinging block 15 is arranged between the moving contact cylinder 14 and the insulating plate 13.
Each stationary contact 4 is pushed by a stationary contact cylinder 16.
A calibration method of a delay calibration device of a direct current molded case circuit breaker is carried out according to the following steps:
the first step is as follows: fixing the molded case circuit breaker: the breaker is arranged on a panel of a shell, a hand valve is manually opened to enable a vertical cylinder piston rod to retract and drive a moving contact to move downwards, after the moving contact is in place, the moving member presses down a micro switch to drive an electromagnetic directional valve and drive a horizontal cylinder piston rod to extend out to drive a floating plate, a screw rod, an upper moving contact and a lower moving contact to move rightwards, the breaker is pressed on the panel, and meanwhile, the upper moving contact and the lower moving contact are in close contact with the breaker;
the second step is that: checking: according to the wiring requirement, the change-over switch is switched to a corresponding gear, so that a corresponding relay is closed, a corresponding electromagnetic directional valve is driven, a corresponding cylinder piston rod is extended out, a moving contact and a corresponding static contact are closed, and a constant current source is opened, so that the calibration can be carried out;
the third step: and correspondingly adjusting the circuit breaker according to the verification result:
when the circuit breaker works, according to a required checking mode, such as an AB phase, a change-over switch is turned to 1 gear, a relay KA1 is closed, an electromagnetic reversing valve YV1 is driven, a cylinder QG1 is closed, 1-3 phases of the circuit breaker are conducted, and direct current enters from a2 phase of the circuit breaker, flows through the 1 and 3 phases and exits from a4 phase;
if the AC phase is adopted, the change-over switch is turned to 2, the relay KA2 is closed, the electromagnetic directional valves YV2 and YV3 are driven, the cylinders QG2 and QG3 are closed, the circuit breakers 1-5 and 6-4 are conducted, and then direct current enters from the phase of the circuit breaker 2, flows through the phases 1, 5 and 6 and exits from the phase 4;
if ABC phase, the change-over switch is turned to 3 gear, the breaker KA3 is closed, the electromagnetic directional valves YV2 and YV4 are driven, the cylinders QG2 and QG4 are closed, the breaker is conducted in 1-5 phase and 6-3 phase, and then direct current enters from 2 phase, flows through 1, 5, 6 and 3 phase and exits from 4 phase;
if the ABCN phase is adopted, the change-over switch is turned to 4-gear, the relay KA4 is closed, the electromagnetic directional valves YV4, YV5 and YV6 are driven, the cylinders QG4, QG5 and QG6 are closed, the circuit breakers 1-7, 8-5 and 6-3 are conducted, and then direct current flows in from 2 and flows through 1, 7, 8, 5, 6 and 3 phases, and the direct current flows out of 4 phases;
the fourth step: disassembling the circuit breaker: the change-over switch is driven to the 0 gear, all relays are not conducted, all electromagnetic directional valves YV1, YV2, YV3, YV4, YV5 and YV6 are reset, cylinder piston rods are retracted, moving contacts are separated from static contacts, all phases of the circuit breaker are not electrified, then hand valves on a panel are operated manually, the horizontal cylinder piston rods are retracted, a floating plate, a pressure spring, a screw rod, an upper moving contact and a lower moving contact are driven to move leftwards, then the vertical cylinder piston rods are extended out, and the upper moving contacts are lifted upwards, so that the plastic shell circuit breaker can be taken down from the panel;
the fifth step: the calibration device current is turned off.
Claims (5)
1. The utility model provides a direct current moulded case circuit breaker time delay verifying attachment, includes frame (1) and moulded case circuit breaker (2), its characterized in that: the movable contact assembly is arranged at the upper end of the rack (1), the floating plate assembly and the fixed contact assembly are arranged at the lower end of the rack (1), and the floating plate assembly, the movable contact assembly and the fixed contact assembly are movably connected;
the movable contact component comprises a movable contact (3) which can extend downwards;
the fixed contact component comprises an extensible fixed contact (4);
the floating plate assembly comprises a molded case circuit breaker (2) movably clamped with the outer wall of the rack (1), a floating plate (5) capable of moving horizontally is arranged in the rack (1), the floating plate (5) drives a flexible connection (6) to be correspondingly connected to the static contact (4), and the moving contact (3) moves downwards to make movable contact with the static contact (4);
the number of the static contacts (4), the number of the movable contacts (3) and the number of the flexible connections (6) are respectively 6.
2. The delay verifying device of the direct current molded case circuit breaker according to claim 1, characterized in that: the plastic case circuit breaker (2) is fixed through an upper moving contact (7) and a lower moving contact (8), the upper moving contact (7) and the lower moving contact (8) are respectively controlled through a vertical cylinder (9), a floating plate (5) is displaced through a horizontal cylinder (10), the floating plate (5) is connected with a frame (1) through a screw rod (11), and the screw rod (11) is externally sleeved with a pressure spring (12) which is movably elastically pressed and connected with the floating plate (5).
3. The delay verifying device of the direct current molded case circuit breaker according to claim 1, characterized in that: the moving contact (3) is arranged at the bottom of the insulating plate (13), a moving contact cylinder (14) for pushing the insulating plate (13) to move downwards is arranged in the rack (1), and a swinging block (15) is arranged between the moving contact cylinder (14) and the insulating plate (13).
4. The delay verifying device of the direct current molded case circuit breaker according to claim 1, characterized in that: each static contact (4) is pushed by a static contact cylinder (16).
5. The method for verifying the delay verifying device of the direct current molded case circuit breaker according to claim 2, 3 or 4, characterized by comprising the following steps:
the first step is as follows: fixing the molded case circuit breaker: the breaker is arranged on a panel of a shell, a hand valve is manually opened to enable a vertical cylinder piston rod to retract and drive a moving contact to move downwards, after the moving contact is in place, the moving member presses down a micro switch to drive an electromagnetic directional valve and drive a horizontal cylinder piston rod to extend out to drive a floating plate, a screw rod, an upper moving contact and a lower moving contact to move rightwards, the breaker is pressed on the panel, and meanwhile, the upper moving contact and the lower moving contact are in close contact with the breaker;
the second step is that: checking: according to the wiring requirement, the change-over switch is switched to a corresponding gear, so that a corresponding relay is closed, a corresponding electromagnetic directional valve is driven, a corresponding cylinder piston rod is extended out, a moving contact and a corresponding static contact are closed, and a constant current source is opened, so that the calibration can be carried out;
the third step: and correspondingly adjusting the circuit breaker according to the verification result:
when the circuit breaker works, according to a required checking mode, such as an AB phase, a change-over switch is turned to 1 gear, a relay KA1 is closed, an electromagnetic reversing valve YV1 is driven, a cylinder QG1 is closed, 1-3 phases of the circuit breaker are conducted, and direct current enters from a2 phase of the circuit breaker, flows through the 1 and 3 phases and exits from a4 phase;
if the AC phase is adopted, the change-over switch is turned to 2, the relay KA2 is closed, the electromagnetic directional valves YV2 and YV3 are driven, the cylinders QG2 and QG3 are closed, the circuit breakers 1-5 and 6-4 are conducted, and then direct current enters from the phase of the circuit breaker 2, flows through the phases 1, 5 and 6 and exits from the phase 4;
if ABC phase, the change-over switch is turned to 3 gear, the breaker KA3 is closed, the electromagnetic directional valves YV2 and YV4 are driven, the cylinders QG2 and QG4 are closed, the breaker is conducted in 1-5 phase and 6-3 phase, and then direct current enters from 2 phase, flows through 1, 5, 6 and 3 phase and exits from 4 phase;
if the ABCN phase is adopted, the change-over switch is turned to 4-gear, the relay KA4 is closed, the electromagnetic directional valves YV4, YV5 and YV6 are driven, the cylinders QG4, QG5 and QG6 are closed, the circuit breakers 1-7, 8-5 and 6-3 are conducted, and then direct current flows in from 2 and flows through 1, 7, 8, 5, 6 and 3 phases, and the direct current flows out of 4 phases;
the fourth step: disassembling the circuit breaker: the change-over switch is driven to the 0 gear, all relays are not conducted, all electromagnetic directional valves YV1, YV2, YV3, YV4, YV5 and YV6 are reset, cylinder piston rods are retracted, moving contacts are separated from static contacts, all phases of the circuit breaker are not electrified, then hand valves on a panel are operated manually, the horizontal cylinder piston rods are retracted, a floating plate, a pressure spring, a screw rod, an upper moving contact and a lower moving contact are driven to move leftwards, then the vertical cylinder piston rods are extended out, and the upper moving contacts are lifted upwards, so that the plastic shell circuit breaker can be taken down from the panel;
the fifth step: the calibration device current is turned off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011579756.8A CN112763901A (en) | 2020-12-28 | 2020-12-28 | Time delay calibration device and calibration method for direct-current molded case circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011579756.8A CN112763901A (en) | 2020-12-28 | 2020-12-28 | Time delay calibration device and calibration method for direct-current molded case circuit breaker |
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| Publication Number | Publication Date |
|---|---|
| CN112763901A true CN112763901A (en) | 2021-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011579756.8A Pending CN112763901A (en) | 2020-12-28 | 2020-12-28 | Time delay calibration device and calibration method for direct-current molded case circuit breaker |
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| CN (1) | CN112763901A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323769A (en) * | 2013-05-20 | 2013-09-25 | 温州大学 | Time delay verifying platform of semiautomatic breaker |
| CN203981843U (en) * | 2014-07-04 | 2014-12-03 | 天津市百利电气有限公司 | The moving verification testing table of wink of breaker of plastic casing |
| CN106771995A (en) * | 2016-11-14 | 2017-05-31 | 中国人民解放军海军潜艇学院 | A kind of mold cased circuit breaker calibration equipment |
| CN207081760U (en) * | 2017-08-21 | 2018-03-09 | 上海良信电器股份有限公司 | A kind of direct current breaker of plastic casing leak current detection device |
| CN108802608A (en) * | 2018-06-04 | 2018-11-13 | 浙江深科自动化科技有限公司 | Breaker of plastic casing time-delay characteristics automatic Verification mechanism |
| CN208459430U (en) * | 2018-06-04 | 2019-02-01 | 浙江深科自动化科技有限公司 | A kind of breaker of plastic casing time-delay characteristics verification grasping system |
| CN211653071U (en) * | 2019-11-28 | 2020-10-09 | 乐清市精创自动化检测设备有限公司 | Moulded case circuit breaker time delay characteristic test bench |
-
2020
- 2020-12-28 CN CN202011579756.8A patent/CN112763901A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323769A (en) * | 2013-05-20 | 2013-09-25 | 温州大学 | Time delay verifying platform of semiautomatic breaker |
| CN203981843U (en) * | 2014-07-04 | 2014-12-03 | 天津市百利电气有限公司 | The moving verification testing table of wink of breaker of plastic casing |
| CN106771995A (en) * | 2016-11-14 | 2017-05-31 | 中国人民解放军海军潜艇学院 | A kind of mold cased circuit breaker calibration equipment |
| CN207081760U (en) * | 2017-08-21 | 2018-03-09 | 上海良信电器股份有限公司 | A kind of direct current breaker of plastic casing leak current detection device |
| CN108802608A (en) * | 2018-06-04 | 2018-11-13 | 浙江深科自动化科技有限公司 | Breaker of plastic casing time-delay characteristics automatic Verification mechanism |
| CN208459430U (en) * | 2018-06-04 | 2019-02-01 | 浙江深科自动化科技有限公司 | A kind of breaker of plastic casing time-delay characteristics verification grasping system |
| CN211653071U (en) * | 2019-11-28 | 2020-10-09 | 乐清市精创自动化检测设备有限公司 | Moulded case circuit breaker time delay characteristic test bench |
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Address after: No. 4518, Xiaoqing Avenue, Hongshan Farm, Xiaoshan District, Hangzhou City, Zhejiang Province, 311234 Applicant after: HANGZHOU ZHIJIANG SWITCHGEAR STOCK Co.,Ltd. Address before: 311201 No. 243 Hongshan Avenue, Xiaoshan District, Hangzhou City, Zhejiang Province Applicant before: HANGZHOU ZHIJIANG SWITCHGEAR STOCK Co.,Ltd. |