CN110426566A - A kind of hand-held transformer voltage ratio group tester - Google Patents
A kind of hand-held transformer voltage ratio group tester Download PDFInfo
- Publication number
- CN110426566A CN110426566A CN201910798319.6A CN201910798319A CN110426566A CN 110426566 A CN110426566 A CN 110426566A CN 201910798319 A CN201910798319 A CN 201910798319A CN 110426566 A CN110426566 A CN 110426566A
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- China
- Prior art keywords
- host
- plastic housing
- test
- master cpu
- voltage ratio
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- Pending
Links
- 238000012360 testing method Methods 0.000 claims abstract description 55
- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 7
- 238000005259 measurement Methods 0.000 claims abstract description 7
- 239000004973 liquid crystal related substance Substances 0.000 claims description 16
- 230000003993 interaction Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- 238000012545 processing Methods 0.000 abstract description 8
- 230000002633 protecting effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/20—Measuring number of turns; Measuring transformation ratio or coupling factor of windings
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention discloses a kind of hand-held transformer voltage ratio group testers, including host plastic housing, host and three-phase measure functional module, three-phase measurement functional module is mounted on the inside of host, upper host rack, lower host rack, the host that is set as of upper host gum cover and lower host gum cover provides good shock-absorbing protecting effect, entire host plastic housing can be lifted by handle, it is convenient for carrying, system power supply is set as lithium battery power supply structure, operation replacement is simple, relay switch unit is switched to the test phase of selection according to the control of master cpu, then test is mutually output to by test product by test macro connecting terminal, after the signal that test product inputs is transmitted to AD sample conversion module progress analog-to-digital conversion by test macro connecting terminal, result is calculated by central processing unit computing unit again, realize Blind Test function, high-low pressure is not being known No-load voltage ratio group test is accurately carried out in the case where bind mode and group, measuring accuracy is high.
Description
Technical field
The present invention relates to transformer voltage ratio group the field of test technology, specially a kind of hand-held transformer voltage ratio group is surveyed
Try instrument.
Background technique
No-load voltage ratio measurement joins as transformer, checking experiment must do that project is essential, traditional test equipment function
Relatively simple, volume ratio is cumbersome, and intelligence degree is not high, and scene is needed when using using Alternating Current Power Supply, uses item to scene
Part requirement is relatively more, to make larger workload, efficiency is reduced；Some test products there is likely to be nameplate lose or it is unintelligible can not
The case where identification, traditional instrument may be unable to test, and bring inconvenience to live use in this way, therefore with the hair of electronics technology
Exhibition, the raising of integrated circuit technique, instrument using also should increasingly integrated level it is high, small and exquisite, light, and intelligence degree height,
So scene is badly in need of a kind of easy to carry, measuring accuracy is high, can be powered with battery, and can cope with the test of various test conditions
Instrument.
Summary of the invention
The purpose of the present invention is to provide a kind of hand-held transformer voltage ratio group testers, have easy to carry, test
Precision is high, the advantages of can powering with battery, and can cope with various test conditions, can solve test equipment function in the prior art
Relatively simple, volume ratio is cumbersome, the not high problem of intelligence degree.
To achieve the above object, the invention provides the following technical scheme: a kind of hand-held transformer voltage ratio group tester,
Functional module is measured including host plastic housing, host and three-phase, three-phase measurement functional module is mounted on the inside of host, host plastic housing
Including plastic housing upper cover and plastic housing lower cover, plastic housing upper cover is fixedly connected by bolt with plastic housing lower cover, plastic housing upper cover include upper cover plate,
Master cpu, liquid crystal display, keyboard, test macro connecting terminal, upper host rack and upper host gum cover, liquid crystal display and
Keyboard is electrically connected with master cpu, and keyboard is fixedly mounted on the lower section of liquid crystal display, and liquid crystal display is fixedly mounted on master
On the front outer wall for controlling CPU, multiple groups test macro connecting terminal is fixedly installed in the side wall of master cpu, and master cpu is fixed on upper cover
The top of plate, the bottom surface of upper cover plate weld upper host rack, install host gum cover, upper host gum cover on the inside of upper host rack
It is contacted at the top of host, the bottom of host is fixed on the inside of plastic housing lower cover；Plastic housing lower cover includes lower cover plate, lower host branch
Frame, lower host gum cover, system power supply, power power-supply, relay and handle, handle are fixed on the outer wall of lower cover plate, lower cover plate
Inside lower host rack is fixedly mounted, lower host rack is located at the outside of host, fixes and sets between host and lower host rack
Lower host gum cover is set, host is connected by conducting wire with system power supply, and system power supply is connected by conducting wire with power power-supply, power electricity
The output end and relay in source are electrically connected, and relay is electrically connected by conducting wire and master cpu.
Preferably, the system power supply is set as lithium battery power supply structure.
Preferably, the three-phase measurement functional module includes Inverter, AD sample conversion module, relay switching
Unit, central processing unit computing unit and man-machine interaction unit.
Preferably, the Inverter connects with relay switch unit, relay switch unit and master cpu electricity
Property connection, master cpu clearance conducting wire and test macro connecting terminal be electrically connected, and test macro connecting terminal connects with test product,
Test macro connecting terminal connects with AD sample conversion module, and AD sample conversion module connects with central processing unit computing unit.
Preferably, the man-machine interaction unit connects with liquid crystal display and keyboard.
Compared with prior art, beneficial effects of the present invention are as follows:
1, it is wrapped by upper host rack and lower host rack in the outside of this hand-held transformer voltage ratio group tester, host
It encloses, and the host that is set as of upper host gum cover and lower host gum cover provides good shock-absorbing protecting effect, it can will be whole by handle
A host plastic housing lifts, and is convenient for carrying.
2, this hand-held transformer voltage ratio group tester, system power supply are set as lithium battery power supply structure, compact,
Operation replacement is simple.
3, this hand-held transformer voltage ratio group tester is not, it can be achieved that Blind Test function, that is, knowing high-low pressure connection side
No-load voltage ratio group test is accurately carried out in the case where formula and group, measuring accuracy is high.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is plastic housing upper cover top surface structural schematic diagram of the invention；
Fig. 3 is plastic housing upper cover bottom surface structure schematic diagram of the invention；
Fig. 4 is plastic housing lower cover structure schematic diagram of the invention；
Fig. 5 is that three-phase of the invention measures functional module and host connection schematic diagram.
In figure: 1, host plastic housing；11, plastic housing upper cover；111, upper cover plate；112, master cpu；113, liquid crystal display；
114, keyboard；115, test macro connecting terminal；116, upper host rack；117, upper host gum cover；12, plastic housing lower cover；121,
Lower cover plate；122, lower host rack；123, lower host gum cover；124, system power supply；125, power power-supply；126, relay；
127, handle；2, host；3, three-phase measures functional module；31, Inverter；32, AD sample conversion module；33, relay
Device switch unit；34, central processing unit computing unit；35, man-machine interaction unit.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
A kind of hand-held transformer voltage ratio group tester, including host plastic housing 1, host 2 and three-phase measure functional module
3, three-phase measurement functional module 3 is mounted on the inside of host 2.
Referring to Fig. 1, host plastic housing 1 includes plastic housing upper cover 11 and plastic housing lower cover 12, plastic housing upper cover 11 passes through bolt and modeling
Shell lower cover 12 is fixedly connected.
Please refer to Fig. 2-3, plastic housing upper cover 11 include upper cover plate 111, master cpu 112, liquid crystal display 113, keyboard 114,
Test macro connecting terminal 115, upper host rack 116 and upper host gum cover 117, liquid crystal display 113 and keyboard 114 with master
It controls CPU112 to be electrically connected, keyboard 114 is fixedly mounted on the lower section of liquid crystal display 113, and liquid crystal display 113 is fixedly mounted on
On the front outer wall of master cpu 112, multiple groups test macro connecting terminal 115, master control is fixedly installed in the side wall of master cpu 112
CPU112 is fixed on the top of upper cover plate 111, and upper host rack 116 is welded in the bottom surface of upper cover plate 111, upper host rack 116
Host gum cover 117 is installed in inside, and upper host gum cover 117 is contacted with the top of host 2, and the bottom of host 2 is fixed under plastic housing
The inside of lid 12.
Referring to Fig. 4, plastic housing lower cover 12 includes lower cover plate 121, lower host rack 122, lower host gum cover 123, system electricity
Source 124, power power-supply 125, relay 126 and handle 127, handle 127 are fixed on the outer wall of lower cover plate 121, lower cover plate 121
Inside lower host rack 122 is fixedly mounted, lower host rack 122 is located at the outside of host 2, host 2 and lower host rack 122
Between lower host gum cover 123 is fixedly installed, host 2 is connected by conducting wire with system power supply 124, and system power supply 124 passes through conducting wire
Connect with power power-supply 125, the output end of power power-supply 125 and relay 126 are electrically connected, relay 126 by conducting wire with
Master cpu 112 is electrically connected, and system power supply 124 is set as lithium battery power supply structure.
Referring to Fig. 5, three-phase measurement functional module 3 includes Inverter 31, AD sample conversion module 32, relay
Switch unit 33, central processing unit computing unit 34 and man-machine interaction unit 35, Inverter 31 and relay switching are single
Member 33 connects, and the connection type between modules and unit can refer to " a kind of change application No. is CN201621248883.9
Depressor D.C. resistance and transformer voltage ratio group tester ", relay switch unit 33 and master cpu 112 are electrically connected, master control
CPU112 clearance conducting wire and test macro connecting terminal 115 are electrically connected, and test macro connecting terminal 115 connects with test product, are surveyed
Test system connecting terminal 115 connects with AD sample conversion module 32, AD sample conversion module 32 and central processing unit computing unit
34 connect, and man-machine interaction unit 35 connects with liquid crystal display 113 and keyboard 114.
Working principle: the outside of host 2 is surrounded by upper host rack 116 and lower host rack 122, and upper host gum cover
117 and the host 2 that is set as of lower host gum cover 123 effect of good shock-absorbing protecting is provided, can be by entire host by handle 127
Plastic housing 1 lifts, and system power supply 124 is set as lithium battery power supply structure, Inverter 31 export three-phase alternating-current supply to after
Electric appliance switch unit 33, relay switch unit 33 and master cpu 112 are electrically connected, and master cpu 112 passes through conducting wire and relay
Device 126 is electrically connected, and relay switch unit 33 is switched to the test phase of selection according to the control of master cpu 112, then passes through
Test is mutually output to test product, 32 phase of test macro connecting terminal 115 and AD sample conversion module by test macro connecting terminal 115
It connects, the signal that test product inputs is transmitted to AD sample conversion module 32 by test macro connecting terminal 115, is carried out after analog-to-digital conversion most
Test result is calculated by central processing unit computing unit 34 eventually.
In summary: this hand-held transformer voltage ratio group tester, the outside of host 2 is by upper host rack 116 under
Host rack 122 is surrounded, and the host 2 that is set as of upper host gum cover 117 and lower host gum cover 123 provides good damping guarantor
Shield effect, entire host plastic housing 1 can be lifted, be convenient for carrying, system power supply 124 is set as lithium battery power supply by handle 127
Structure, compact, operation replacement is simple, the output three-phase alternating-current supply of Inverter 31 to relay switch unit 33,
Relay switch unit 33 and master cpu 112 are electrically connected, and master cpu 112 is electrically connected by conducting wire and relay 126, after
Electric appliance switch unit 33 is switched to the test phase of selection according to the control of master cpu 112, then passes through test macro connecting terminal
Test is mutually output to test product by 115, and test macro connecting terminal 115 connects with AD sample conversion module 32, test macro wiring
The signal that test product inputs is transmitted to AD sample conversion module 32 by terminal 115, is carried out after analog-to-digital conversion finally by central processing unit
Computing unit 34 calculates test result, it can be achieved that Blind Test function, i.e., the case where not knowing high-low pressure bind mode and group
Lower accurate progress no-load voltage ratio group test, measuring accuracy are high.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of hand-held transformer voltage ratio group tester, including host plastic housing (1), host (2) and three-phase measure function mould
Block (3), three-phase measurement functional module (3) are mounted on the inside of host (2), it is characterised in that: the host plastic housing (1) includes modeling
Shell upper cover (11) and plastic housing lower cover (12), plastic housing upper cover (11) are fixedly connected by bolt with plastic housing lower cover (12), plastic housing upper cover
It (11) include upper cover plate (111), master cpu (112), liquid crystal display (113), keyboard (114), test macro connecting terminal
(115), upper host rack (116) and upper host gum cover (117), liquid crystal display (113) and keyboard (114) are and master cpu
(112) it is electrically connected, keyboard (114) is fixedly mounted on the lower section of liquid crystal display (113), the fixed peace of liquid crystal display (113)
On the front outer wall of master cpu (112), multiple groups test macro connecting terminal is fixedly installed in the side wall of master cpu (112)
(115), master cpu (112) is fixed on the top of upper cover plate (111), and upper host rack is welded in the bottom surface of upper cover plate (111)
(116), it is installed host gum cover (117) on the inside of upper host rack (116), the top of upper host gum cover (117) and host (2)
Contact, the bottom of host (2) is fixed on the inside of plastic housing lower cover (12)；The plastic housing lower cover (12) include lower cover plate (121), under
Host rack (122), lower host gum cover (123), system power supply (124), power power-supply (125), relay (126) and handle
(127), handle (127) is fixed on the outer wall of lower cover plate (121), and lower host rack is fixedly mounted in the inside of lower cover plate (121)
(122), lower host rack (122) is located at the outside of host (2), under being fixedly installed between host (2) and lower host rack (122)
Host gum cover (123), host (2) are connected by conducting wire with system power supply (124), and system power supply (124) passes through conducting wire and power
Power supply (125) connects, and the output end of power power-supply (125) and relay (126) are electrically connected, and relay (126) passes through conducting wire
It is electrically connected with master cpu (112).
2. a kind of hand-held transformer voltage ratio group tester according to claim 1, it is characterised in that: the system electricity
Source (124) is set as lithium battery power supply structure.
3. a kind of hand-held transformer voltage ratio group tester according to claim 1, it is characterised in that: the three-phase is surveyed
Amount functional module (3) includes Inverter (31), AD sample conversion module (32), relay switch unit (33), center
Processor computing unit (34) and man-machine interaction unit (35).
4. a kind of hand-held transformer voltage ratio group tester according to claim 3, it is characterised in that: the inversion electricity
Source module (31) connects with relay switch unit (33), and relay switch unit (33) and master cpu (112) are electrically connected,
Master cpu (112) clearance conducting wire and test macro connecting terminal (115) are electrically connected, test macro connecting terminal (115) and examination
Condition connects, and test macro connecting terminal (115) connects with AD sample conversion module (32), AD sample conversion module (32) and center
Processor computing unit (34) connects.
5. a kind of hand-held transformer voltage ratio group tester according to claim 3, it is characterised in that: the man-machine friendship
Mutual unit (35) connects with liquid crystal display (113) and keyboard (114).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910798319.6A CN110426566A (en) | 2019-08-27 | 2019-08-27 | A kind of hand-held transformer voltage ratio group tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910798319.6A CN110426566A (en) | 2019-08-27 | 2019-08-27 | A kind of hand-held transformer voltage ratio group tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110426566A true CN110426566A (en) | 2019-11-08 |
Family
ID=68417786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910798319.6A Pending CN110426566A (en) | 2019-08-27 | 2019-08-27 | A kind of hand-held transformer voltage ratio group tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110426566A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111060722A (en) * | 2020-01-07 | 2020-04-24 | 保定市力兴电子设备有限公司 | Novel electric field induction plate mounting rack |
| CN111537810A (en) * | 2020-05-25 | 2020-08-14 | 武汉致卓测控科技有限公司 | Method for testing transformation ratio and group of three-phase transformer and handheld tester |
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2019
- 2019-08-27 CN CN201910798319.6A patent/CN110426566A/en active Pending
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| CN205809189U (en) * | 2016-07-13 | 2016-12-14 | 武汉光宇电力新技术有限公司 | Transformer voltage ratio tester |
| CN207215903U (en) * | 2016-11-15 | 2018-04-10 | 保定市力兴电子设备有限公司 | A kind of DCR of Transformer and transformer voltage ratio group tester |
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| CN111060722A (en) * | 2020-01-07 | 2020-04-24 | 保定市力兴电子设备有限公司 | Novel electric field induction plate mounting rack |
| CN111537810A (en) * | 2020-05-25 | 2020-08-14 | 武汉致卓测控科技有限公司 | Method for testing transformation ratio and group of three-phase transformer and handheld tester |
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