CN104020434B - Automatic calibrating system for metering low-voltage current transformer - Google Patents
Automatic calibrating system for metering low-voltage current transformer Download PDFInfo
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- CN104020434B CN104020434B CN201410267351.9A CN201410267351A CN104020434B CN 104020434 B CN104020434 B CN 104020434B CN 201410267351 A CN201410267351 A CN 201410267351A CN 104020434 B CN104020434 B CN 104020434B
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Abstract
The invention relates to an automatic calibrating system for a metering low-voltage current transformer. The automatic calibrating system for the metering low-voltage current transformer comprises a circulating box warehouse inlet-outlet connection, unstacking and stacking device (1), a material feeding and discharging module (2), a conveying line (3) and an appearance detection module (4), an insulation withstand voltage test module (5) and an error calibrating module (6), wherein the circulating box warehouse inlet-outlet connection, unstacking and stacking device (1) is arranged at one end of the conveying line (3), the material feeding and discharging module (2) is arranged between the circulating box warehouse inlet-outlet connection, unstacking and stacking device (1) and the conveying line (3), and fully automatic transformer verification devices (7), detection information electronic display boards (8) and system master controllers (9) are arranged at the two sides of the conveying line (3). Compared with the prior art, the automatic calibrating system for the metering low-voltage current transformer has the advantages of being compact in structure, high in automation degree, flexible, reliable and the like.
Description
Technical field
The present invention relates to the calibrating of current transformer, especially relate to a kind of inspection of metering low-voltage current mutual inductor automatization
Determine system.
Background technology
In electrical network application current transformer be by the high current scaled down in a circuit be double measurement loop
Required small current, mainly realizes the electrical isolation at high-low pressure two ends and the function of equal proportion measurement.Current transformer for metering
It is one of main measurement instrument for electric energy trade settlement, belong to state compulsion calibrating specification.Each metering is mutual with electric current
Sensor be required for by first calibrating and periodic calibration qualified after could normally use.With economic fast development, metering is used
The recoverable amount of current transformer also steeply rises, and traditional artificial calibrating mode has not adapted to the ct calibrating of rapid growth
Demand, develops full automatic transformer calibrating device imperative.
The transformer that domestic at present each transformer manufacturer, State Grid Corporation of China and National Technical superintendent office are used
Verification system all adopts artificial wiring, automatic measurement mode.Due to transformer detection project numerous it would therefore be desirable to have cover different
Equipment examined and determine, manually connect to take out stitches and require a great deal of time when carrying out these calibratings, it has also become improve transformer
The Main Bottleneck of calibrating efficiency.
Content of the invention
The purpose of the present invention is exactly to provide a kind of compact conformation, automatically to overcome the defect that above-mentioned prior art exists
Change degree is high, the metering of flexibility and reliability low-voltage current mutual inductor automatic calibration system.
The purpose of the present invention can be achieved through the following technical solutions：Low-voltage current mutual inductor automatization is used in a kind of metering
Verification system is plugged into and is unfolded buttress device, loading and unloading module, pipeline and setting it is characterised in that including Turnover Box and going out warehouse-in
Outward appearance detection module on the conveyor line, insulation pressure test module, error testing module, described Turnover Box goes out warehouse-in and plugs into
And unfold buttress device be arranged on pipeline one end, described loading and unloading module be arranged on Turnover Box go out warehouse-in plug into and unfold buttress dress
Put and pipeline between, described pipeline both sides be additionally provided with automatic instrument transformer calibrator, detection information electronic board and
System main-control machine；
During detection, warehouse-in is gone out by Turnover Box and plugs into and unfold buttress device by Turnover Box order de-stacking to precalculated position, will
The single Turnover Box filling transformer moves to specified location, and is taken the transformer to be detected in Turnover Box by loading and unloading module
Go out, carry out transformer bar code scan and put on feeding delivery tray, pallet is positioned, and lock transformer to be detected, pass through
Pipeline is delivered to outward appearance detection station, gathers the image information in each face of transformer to be detected by outward appearance detection module, so
After be transported to insulation pressure test module carry out the wiring of secondary connection mechanism, insulation resistance, industrial frequency withstand voltage test, substandard product
Labelled, returned by loopback line, qualified products error originated from input assay module carries out error-detecting, magnetic saturation nargin is tested,
Secondary Winding turn-to-turn insulation is tested, qualified products and underproof product is labelled respectively is returned by loopback line, by complete
Automatically, after mutual-inductor calibration device, detection information electronic board check qualified products further, sorted by loading and unloading module and close
Lattice product warehousing, substandard product reclaims.
Described Turnover Box go out warehouse-in plug into and unfold buttress device include planer-type robot palletizer, Turnover Box pipeline,
Robot palletizer switch board, PLC master control cabinet, power supply master control cabinet, described planer-type robot palletizer connects stacking machine respectively
Device people's switch board, PLC master control cabinet, power supply master control cabinet, described Turnover Box pipeline is arranged on planer-type robot palletizer one
Side.
Described loading and unloading module be six degree of freedom robot, including base, column, fixed plate, rotating disk, movable arms,
Transformer jaw；Described column bottom is fixed on base, and top arranges fixed plate, and described rotating disk is arranged on fixed plate
On, described movable arms one end is arranged on rotating disk, and the other end connects transformer jaw, and described rotating disk and movable arms are led to
Cross control circuit and connect servomotor, drive movable arms to move up and down by servomotor, simultaneously drive rotating disk to turn in plane
Dynamic, realize the motion of six-freedom degree.
Described movable arms include connecting plate, rotating shaft b, the first joint, rotating shaft c, second joint；Described connecting plate is solid
It is scheduled on rotating disk side, first described joint one end connects connecting plate by rotating shaft b, and the other end connects the second pass by rotating shaft c
Section, second joint connects transformer jaw.
Described pipeline include two parallel calibrating pipelines, be arranged on two parallel calibrating pipelines between and with
Its parallel loopback line, with the calibrating vertical branch road loopback line of pipeline, this branch road loopback line has three, respectively across in calibrating
Pipeline two ends and centre, after middle branch road loopback line is located at insulation pressure test module.
Described outward appearance detection module includes frame, driving cylinder, upper lower push-rod, guide rail and optical camera, described drive
Cylinder of taking offence is arranged on frame lower, and described guide rail is arranged on central rack, and described optical camera is arranged on frame top；Institute
The upper lower push-rod stated is arranged in driving cylinder.
Described insulation pressure test module includes general basic platform, holds up earthing module, secondary connection module, once
Guiding clamp module, punching mechanism, described punching mechanism is arranged on general basic platform upper surface, described secondary connection mould
Block frame is located at punching mechanism both sides, and described picking-up earthing module is arranged in secondary connection module, a described guide clip
Tight module is arranged on general basic platform upper surface and is located at by punching mechanism.
Described general basic platform includes rectangle support, the electric Electrical Measuring Instrument installing plate of setting in this rectangle support,
The work platformses of described rectangle support top setting；
The described earthing module that holds up includes top board, trough of belt side plate, top board and the bottom of base plate, connection top board and base plate both sides
The lifter plate of plate middle setting, driver and earthing rod；
Described secondary connection module includes the bracing frame being erected on general basic platform, is arranged on this bracing frame
Scalable screw rod, is arranged on the mounting plate on this scalable screw rod and bottom plate, is arranged on the drive between mounting plate and bottom plate
Dynamic device；Described bottom plate lower surface is provided with multiple wiring jaws；
Described punching mechanism includes being arranged on guide rail in the middle part of general basic platform upper surface, is arranged on other the wearing of guide rail
Heart copper bar, this punching copper bar connects synchronous motor by Timing Belt.
The structure of error testing module is identical with insulation pressure test module.
Compared with prior art, the present invention has advantages below：
1. each machinery in verification system, is respectively provided with abnormal detection function.Machinery remarkable action in running
Or transformer positioning is inaccurate, timely sound, light alarm simultaneously stop action, and abnormal information is aggregated into Central Control Room, treat Abnormality remove
After work on.
2. when system has a power failure suddenly, verification system has the state of memory key equipment, can be by letter after sending a telegram here
Single operation may continue.
3. verification system, can complete independently mutual inductor automation calibrating in the case of departing from warehousing system.
4., when transformer pipeline fault, manual work can be passed through, complete ct calibrating operation.
5. verification system equipment component breaks down and cannot recover normal in short-term, enables Fault Isolation, does not affect
The overall operation of verification system.
6. should there is emergency disposal scheme during key modules (link) fault.System global reliability meets year run time not
Less than 350 × 24 hours.
7. verification system adopts modularized design, and each functional unit being capable of independent operating；Each unit all should have mark bright
Aobvious emergency stop switch, in case of emergency can interrupt system operation；
8., all using " general basic platform " module, outward appearance is more neat, attractive in appearance for the pressure station of insulation and error testing station,
It is easy to produce, assemble, exchange and transport.
9. structure adopts modularized design, makes installation, debugging more convenient.Each mechanical part on station is carried out module
Change, such as hold up earthing module, secondary connection module, once guiding clamp module etc..Each several part is so made to tend to standardization, with
When also allow for assembling and parts replacement.
10. pass through " universal reference platform " block supports punching mechanism, drive punching copper bar so that machinery from Timing Belt
Structure is simpler, compact.
11. electrically fill with electrical measurement in the internal reasonable Arrangement of general-purpose platform of insulation resistance test station and error testing station
Put.So not only overall structure good looking appearance, and comprehensive wiring is regular.
12. verification systems are designed using the control mode that distributed I/O and industrial field bus combine, PLC
In switch board, on corresponding station, PLC is carried out by industrial field bus each I/O module distribution with I/O module
Connecting, switch board being greatly reduced to the connecting line of corresponding station, thus improving the reliability of electrical control.
13., due to being designed it is achieved that centralized Control using distributed AC servo system, are simplified wiring, improve reliability.
Brief description
Fig. 1 measures the schematic diagram with low-voltage current mutual inductor automatic calibration system for the present invention；
Fig. 2 is the schematic diagram of loading and unloading module；
Fig. 3 is the schematic diagram of outward appearance detection module；
Fig. 4 is the schematic diagram of insulation pressure test module.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
As shown in figure 1, low-voltage current mutual inductor automatic calibration system is used in a kind of metering, go out warehouse-in including Turnover Box and plug into
And unfold buttress device 1, loading and unloading module 2, pipeline 3 and setting outward appearance detection module 4 on the conveyor line, insulation pressure test
Module 5, error testing module 6, described Turnover Box go out warehouse-in plug into and unfold buttress device 1 be arranged on pipeline 3 one end, described
Loading and unloading module 2 be arranged on Turnover Box go out warehouse-in plug into and unfold buttress device 1 and pipeline 3 between, 3 liang of described pipeline
Side is additionally provided with automatic instrument transformer calibrator 7, detection information electronic board 8 and system main-control machine 9；
Described Turnover Box go out warehouse-in plug into and unfold buttress device 1 include planer-type robot palletizer 11, Turnover Box conveying
Line 12, robot palletizer switch board 13, PLC master control cabinet 14, power supply master control cabinet 15,11 points of described planer-type robot palletizer
Not Lian Jie robot palletizer switch board 13, PLC master control cabinet 14, power supply master control cabinet 15, described Turnover Box pipeline 12 arranges
In planer-type robot palletizer side.
As shown in Fig. 2 loading and unloading module 2 is six degree of freedom robot, this robot includes base 21, column 22, fixes
Plate 23, rotating disk 24, movable arms 25, transformer jaw 26；Described column 22 be cylindrical shape, its highly with described streamline
Work top highly matches.Described column 22 bottom is fixed on base 21, and top arranges fixed plate 23, described fixation
Plate 23 is provided with a rotating shaft a, and described rotating disk 24 is arranged on rotating shaft a, and can 360 degree of rotations in the horizontal plane around the shaft.Institute
The movable arms 25 stated include connecting plate 251, rotating shaft b, the first joint 252, rotating shaft c, second joint 253；Described connecting plate
251 are fixed on rotating disk 24 side, and described the first joint 252 one end connects connecting plate 251 by rotating shaft b, and the other end passes through to turn
Axle 2c connects second joint 253, and second joint 253 connects transformer jaw 6.Hang down in the axis of described rotating shaft b and rotating shaft c
Directly.Described rotating disk 24 and movable arms 25 connect servomotor by control circuit, drive movable arms by servomotor
25 up and down motions, simultaneously drive rotating disk 24 in Plane Rotation, achieve machine by rotating disk and two vertically disposed rotating shafts
The motion of people's six-freedom degree.
During use, robot captures transformer from feeding station Turnover Box, and transformer is delivered to scanning domain scanning, if letter
Manner of breathing mates, and transformer is gone on the pallet of pipeline 3, is sent to detection station and is detected, if scanning information is not
Join, this transformer is put in defective work Turnover Box, only capture next.Six-DOF robot complete transformer crawl,
The actions such as sorting, placement；Loading and unloading station completes positioning on pallet for the transformer, is installed and unloads；Barcode scanner is realized
The identification of transformer.If transformer is put back by operator accidentally, robot can be identified by sensor, and from
Dynamic transformer rotated to tram carry out feeding, overall process is without manual intervention.
Described pipeline 3 include two parallel calibrating pipelines 31, be arranged on two parallel calibrating pipelines 31 it
Between and loopback line 32 in parallel, and the calibrating vertical branch road loopback line 33 of pipeline 31, this branch road loopback line 33 has three,
Respectively across in calibrating pipeline 31 two ends and centre, middle branch road loopback line 33 is after insulation pressure test module 5.
As shown in figure 3, described outward appearance detection module 4 includes frame 41, driving cylinder 42, upper lower push-rod 43, guide rail 44
With optical camera 45, described driving cylinder 42 is arranged on frame 41 bottom, and described guide rail 44 is arranged in the middle part of frame 41, institute
The optical camera 45 stated is arranged on frame 41 top, and optical camera 5 includes top camera, top light source, side camera and side
Light source, can carry out complete detection to each information in current transformer top and side, and optical camera is no less than 500,000 pixels；Described
Upper lower push-rod 43 is arranged in driving cylinder 42.Described upper lower push-rod 43 top is provided with clamping current transformer and has driven rotation
The jaw turning.
During use, the pallet that pipeline 3 will be equipped with transformer is transported on this guide rail 44, after pallet gear stops, by upper and lower
Push rod and driving cylinder realize the operation such as transformer height adjustment and transformer rotation；Top camera and light source complete transformer top
Portion's nameplate and the inspection of secondary wiring terminals；Side camera and light source complete transformer side, overall dimensions and primary connection end
Son (multiple circle type) checks.
As shown in figure 4, described insulation pressure test module 5 includes general basic platform 51, holds up earthing module 52, two
Secondary Wiring module 53, once guiding clamp module 54, punching mechanism 55, described punching mechanism 55 is arranged on general basic platform
51 upper surfaces, described secondary connection module 53 is erected at punching mechanism 55 both sides, and described picking-up earthing module 52 is arranged on
In secondary connection module 53, described once guiding clamp module 54 is arranged on general basic platform 51 upper surface and is located at punching
By mechanism 55.
Described general basic platform 51 includes rectangle support, the electric Electrical Measuring Instrument installing plate of setting in this rectangle support
511, the work platformses 512 of described rectangle support top setting.
The described earthing module 52 that holds up includes top board, base plate, connects the trough of belt side plate of top board and base plate both sides, top board and
The lifter plate of base plate middle setting, driver and earthing rod.
Described secondary connection module 53 includes the bracing frame 531 being erected on general basic platform 51, is arranged on this
Scalable screw rod 532 on support, is arranged on the mounting plate 533 on this scalable screw rod 532 and bottom plate 534, is arranged on
Driver between supporting plate 533 and bottom plate 534；Described bottom plate 534 lower surface is provided with multiple wiring jaws 535, drives
Device drives bottom plate to move up and down along scalable screw rod 532, so that each wiring jaw 535 moves up and down, so that detection work
The wiring position at part top.
Described punching mechanism 55 includes being arranged on the guide rail 551 of general basic platform 51 upper surface middle part, is arranged on and leads
The punching copper bar 552 of trackside, this punching copper bar 552 connects synchronous motor by Timing Belt.Punching copper bar 552 is fastened on guide rail
On 551, and can move forward and backward along guide rail under the driving of synchronous motor, described once guiding clamp module 54 includes being arranged on
The other clamping support 541 of punching copper bar and grip base 542, clamping support 541 can rotate around grip base 542, and the angle of rotation is 0
～30 degree, play and lift the effect unclamping and depressing clamping.
When workpiece to be detected is transported on guide rail 551, it is clamped on punching copper bar 552 by clamping support 541, and is led to
Cross punching copper bar and adjust its horizontal level, adjust its lengthwise position by holding up the lifter plate in earthing module 52, and be grounded, lead to
Cross the electric Electrical Measuring Instrument being arranged in electric Electrical Measuring Instrument installing plate 511 to be detected.
The structure of error testing module is identical with insulation pressure test module.
During detection, by Turnover Box go out warehouse-in plug into and unfold buttress device (1) by Turnover Box order de-stacking to precalculated position,
The single Turnover Box filling transformer is moved to specified location, and by loading and unloading module by the transformer to be detected in Turnover Box
Take out, carry out transformer bar code scan and put on feeding delivery tray, pallet is positioned, and lock transformer to be detected, lead to
Cross pipeline (3) and be delivered to outward appearance detection station, gather the image in each face of transformer to be detected by outward appearance detection module (4)
Information, is then delivered to insulation pressure test module (5) and carries out the wiring of secondary connection mechanism, insulation resistance, industrial frequency withstand voltage test,
Substandard product is labelled, is returned by loopback line, and qualified products error originated from input assay module (6) carry out error-detecting, magnetic
The experiment of saturation nargin, the experiment of Secondary Winding turn-to-turn insulation, substandard product and underproof product respectively labelled by time
Line sending returns, after automatic instrument transformer calibrator (7), detection information electronic board (8) check qualified products further,
Qualified products warehouse-in is sorted by loading and unloading module (2), substandard product reclaims.
Performance：
1. wherein automatic instrument transformer calibrator (7), detection information electronic board (8) etc. are supervised to verification process
Control, when occurring but being not limited to following situations, should be able to carry out automatic protection and report to the police：
1) a high current wire joining temperature exceedes limit value；
2) second open circuit when elementary error measurement and magnetic saturation nargin measure；
3) conveyer operation exception；
4) electricity, pneumatic system pressure transfinite or decompression；
5) robot arm grasps error；
6) material attitude is abnormal；
7) connect and take out stitches unsuccessfully.
2. verification system realizes the trackability of ordering management and data, can inquire about the history number of verification system operation
According to all kinds of events (>=6 months), and by accurate, complete calibrating data record, the quality of verification result is effectively ensured.
3. stability
1) verification system is not more than 30min preheating time；
2) stabilization time of load point handoff procedure should be less than 10s；
4. reliability：
1) critical information server system adopts Redundancy Design, each other stand-by heat；
2), after powered-off fault, verification system should be able to preserve the working state of system before power down, can be normal after recovery to be powered
Work；
5. the integrated requirement of verification system：
Supply unit is closely integrated with assay device, and verification system is seamlessly connected with warehousing system, with production scheduling platform
Realize information exchange with Intelligent storage system.
6. said system global index：
1) false drop rate：Verification system false drop rate should be less than 0.5%；
2) fallout ratio：Verification system fallout ratio should be 0%；
3) noise：The maximum noise sound level of verification system is less than 85dB (A), and equivalent sound level is less than 60dB within 8 hours
(A)；
4) the whole process time：The whole process calibrating time is not more than 20 minutes/batches.
5) MTBF of each working cell of verification system is no less than 2 years.
Claims (6)
1. a kind of metering low-voltage current mutual inductor automatic calibration system is plugged into it is characterised in that including Turnover Box and going out warehouse-in
And unfold buttress device (1), loading and unloading module (2), pipeline (3) and setting outward appearance detection module (4) on the conveyor line, insulate
Pressure test module (5), error testing module (6), described Turnover Box go out warehouse-in plug into and unfold buttress device (1) be arranged on defeated
Line sending (3) one end, described loading and unloading module (2) is arranged on Turnover Box and goes out warehouse-in plugs into and unfolds buttress device (1) and pipeline
(3), between, described pipeline (3) both sides are additionally provided with automatic instrument transformer calibrator (7), detection information electronic board (8)
With system main-control machine (9)；
Described insulation pressure test module (5) includes general basic platform (51), holds up earthing module (52), secondary connection mould
Block (53), once guiding clamp module (54), punching mechanism (55), described punching mechanism (55) is arranged on general basic platform
(51) upper surface, described secondary connection module (53) is erected at punching mechanism (55) both sides, described picking-up earthing module
(52) it is arranged in secondary connection module (53), described once guiding clamp module (54) is arranged on general basic platform (51)
Upper surface is simultaneously located at punching mechanism (55) side；
Described loading and unloading module (2) is six degree of freedom robot, including base (21), column (22), fixed plate (23), rotating disk
(24), movable arms (25), transformer jaw (26)；Described column (22) bottom is fixed on base (21), and top is arranged
Fixed plate (23), described rotating disk (24) is arranged in fixed plate (22), and described movable arms (25) one end is arranged on rotating disk
(24) on, the other end connects transformer jaw (26), and described rotating disk (24) and movable arms (25) are connected by control circuit
Servomotor, drives movable arms (25) to move up and down by servomotor, simultaneously drives rotating disk (24) in Plane Rotation, realizes
The motion of six-freedom degree；
During detection, by Turnover Box go out warehouse-in plug into and unfold buttress device (1) by Turnover Box order de-stacking to precalculated position, will fill
The single Turnover Box of full transformer moves to specified location, and is taken the transformer to be detected in Turnover Box by loading and unloading module
Go out, carry out transformer bar code scan and put on feeding delivery tray, pallet is positioned, and lock transformer to be detected, pass through
Pipeline (3) is delivered to outward appearance detection station, gathers the image letter in each face of transformer to be detected by outward appearance detection module (4)
Breath, is then delivered to insulation pressure test module (5) and carries out the wiring of secondary connection mechanism, insulation resistance, industrial frequency withstand voltage test, no
Qualified products are labelled, returned by loopback line, and qualified products error originated from input assay module (6) carry out error-detecting, magnetic is satisfied
With nargin experiment, the experiment of Secondary Winding turn-to-turn insulation, qualified products and underproof product respectively labelled by loopback line
Return, after automatic instrument transformer calibrator (7), detection information electronic board (8) check qualified products further, pass through
Loading and unloading module (2) sorting qualified products warehouse-in, substandard product reclaims.
2. a kind of metering according to claim 1 with low-voltage current mutual inductor automatic calibration system it is characterised in that institute
The Turnover Box stated go out warehouse-in plug into and unfold buttress device (1) include planer-type robot palletizer (11), Turnover Box pipeline (12),
Robot palletizer switch board (13), PLC master control cabinet (14), power supply master control cabinet (15), described planer-type robot palletizer
(11) robot palletizer switch board (13), PLC master control cabinet (14), power supply master control cabinet (15), described Turnover Box are connected respectively
Pipeline (12) is arranged on planer-type robot palletizer side.
3. a kind of metering according to claim 1 with low-voltage current mutual inductor automatic calibration system it is characterised in that institute
The movable arms (25) stated include connecting plate (251), rotating shaft b, the first joint (252), rotating shaft c, second joint (253)；Described
Connecting plate (251) be fixed on rotating disk (24) side, described the first joint (252) one end connects connecting plate by rotating shaft b
(251), the other end connects second joint (253) by rotating shaft c, and second joint (253) connects transformer jaw (26).
4. a kind of metering according to claim 1 with low-voltage current mutual inductor automatic calibration system it is characterised in that institute
The pipeline (3) stated includes two parallel calibrating pipelines (31), is arranged between two parallel calibratings pipeline (31) simultaneously
Loopback line (32) in parallel, and calibrating pipeline (31) vertical branch road loopback line (33), this branch road loopback line (33) has
Article three, respectively across in calibrating pipeline (31) two ends and centre, middle branch road loopback line (33) is located at insulation pressure test
After module (5).
5. a kind of metering according to claim 1 with low-voltage current mutual inductor automatic calibration system it is characterised in that institute
The outward appearance detection module (4) stated includes frame (41), driving cylinder (42), upper lower push-rod (43), guide rail (44) and optical camera
(45), described driving cylinder (42) is arranged on frame (41) bottom, and described guide rail (44) is arranged in the middle part of frame (41), institute
The optical camera (45) stated is arranged on frame (41) top；Described upper lower push-rod (43) is arranged in driving cylinder (42).
6. a kind of metering according to claim 1 with low-voltage current mutual inductor automatic calibration system it is characterised in that institute
The general basic platform (51) stated includes the electric Electrical Measuring Instrument installing plate of setting in rectangle support, this rectangle support, described square
The work platformses of shape cradle top setting；
Described picking-up earthing module (52) includes top board, trough of belt side plate, top board and the bottom of base plate, connection top board and base plate both sides
The lifter plate of plate middle setting, driver and earthing rod；
Described secondary connection module (53) includes the bracing frame being erected on general basic platform (51), is arranged on this bracing frame
On scalable screw rod, be arranged on the mounting plate on this scalable screw rod and bottom plate, be arranged between mounting plate and bottom plate
Driver；Described bottom plate lower surface is provided with multiple wiring jaws；
Described punching mechanism (5) includes being arranged on the guide rail of general basic platform (1) upper surface middle part, is arranged on guide rail side
Punching copper bar, this punching copper bar connects synchronous motor by Timing Belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410267351.9A CN104020434B (en) | 2014-06-16 | 2014-06-16 | Automatic calibrating system for metering low-voltage current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410267351.9A CN104020434B (en) | 2014-06-16 | 2014-06-16 | Automatic calibrating system for metering low-voltage current transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104020434A CN104020434A (en) | 2014-09-03 |
| CN104020434B true CN104020434B (en) | 2017-02-15 |
Family
ID=51437293
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410267351.9A Active CN104020434B (en) | 2014-06-16 | 2014-06-16 | Automatic calibrating system for metering low-voltage current transformer |
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| CN (1) | CN104020434B (en) |
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| CN106774061A (en) * | 2016-12-09 | 2017-05-31 | 国网北京市电力公司 | The information processing system of calibrating installation |
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