CN203909101U - Novel current adjustment testing device - Google Patents
Novel current adjustment testing device Download PDFInfo
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- CN203909101U CN203909101U CN201420328763.4U CN201420328763U CN203909101U CN 203909101 U CN203909101 U CN 203909101U CN 201420328763 U CN201420328763 U CN 201420328763U CN 203909101 U CN203909101 U CN 203909101U
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- transformer
- electrically connected
- regulator
- control circuit
- test unit
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- 238000012360 testing method Methods 0.000 title claims abstract description 35
- 230000001681 protective effect Effects 0.000 claims description 12
- 238000005259 measurement Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 abstract 4
- 238000011056 performance test Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The utility model discloses a novel current adjustment testing device, which comprises a machine cabinet, a control circuit, a voltage regulating device, a transformer, an electric reactor and an acousto-optic alarm and protection device, wherein the control circuit, the voltage regulating device, the transformer, the electric reactor and the acousto-optic alarm and protection device are respectively arranged inside the machine cabinet, the control circuit comprises a digital display current meter, the digital display current meter is arranged on the surface of the machine cabinet, the control circuit and the voltage regulating device are respectively and electrically connected to a secondary of the transformer, the electric reactor is electrically connected to a primary side of the voltage regulating device, and the acousto-optic alarm and protection device is electrically connected with an output end of the digital display current meter and is arranged at the top end of the machine cabinet. Through the method, the novel current adjustment testing device has the advantages of low loss, high efficiency, high precision, easy operation, control function and the like, and has wide market prospect in popularization.
Description
Technical field
The utility model relates to appliance test equipment field, particularly relates to a kind of New type of current and adjusts test unit.
Background technology
Along with being widely used of high-power electric appliance equipment in life, adopt isolating switch to protect household electricity safety requirements more and more higher, therefore isolating switch should meet the testing requirements that national standard manufactures a product, and meets the test category requirement of national standard defined.And the similar test unit mounting structure complexity adopting at present, control method is loaded down with trivial details, poor reliability, and the fragile and constant voltage source of hand-operated pressure regulation appliance can only be with the current adjusting device in the multiple loops of same current.Need to provide a kind of economy for this reason, easy and simple to handle, reliability is high, use the same constant voltage source can be with the current adjusting device of the different range of current in many multiple loops, and the electric current that can meet each capacity isolating switch (as low-voltage distribution cabinet) temperature rise performance test of different circuit is adjusted test unit.
Utility model content
The technical matters that the utility model mainly solves is to provide a kind of New type of current and adjusts test unit, by adopting the current adjusting device of low-loss, high-level efficiency, high precision and control function easy and simple to handle, use same constant pressure source to meet each capacity isolating switch (as low-voltage distribution cabinet) temperature rise performance test of different circuit, the accuracy of warranty test result and repeatable isolating switch (as low-voltage distribution cabinet) temperature rise performance test, adjust on popularizing of test unit and have market outlook widely in New type of current.
For solving the problems of the technologies described above, the utility model provides a kind of New type of current to adjust test unit, comprise: rack, control circuit, regulator, transformer, reactor and sound and light alarm and protective device, described control circuit, regulator, transformer, reactor and sound and light alarm and protective device are all arranged on the inside of described rack, described control circuit comprises digital display ammeter, described digital display ammeter is arranged on the surface of described rack, the elementary measurement mechanism that is electrically connected with of described transformer, described control circuit and described regulator are electrically connected respectively the secondary of described transformer, described reactor is electrically connected the secondary of described regulator, described sound and light alarm and protective device are electrically connected the output terminal of described digital display ammeter and are arranged on the top of described rack.
In preferred embodiment of the utility model, described control circuit comprises button, knob, contactor, relay and Hall element, and described Hall element is electrically connected the elementary of described transformer.
In preferred embodiment of the utility model, the elementary of described transformer is the connection of Y type, and secondary is three single-phase outputs.
In preferred embodiment of the utility model, described three single-phase outputs are electrically connected respectively the input end of described regulator.
In preferred embodiment of the utility model, the described digital display ammeter that described three single-phase outputs connect is all circumscribed with calibration equipment.
In preferred embodiment of the utility model, described measurement mechanism is high precision current transformer.
In preferred embodiment of the utility model, described regulator is electric voltage regulator.
The beneficial effects of the utility model are: the utility model New type of current is adjusted test unit and had the advantages such as low-loss, high-level efficiency, high precision and control function easy and simple to handle, adjust on popularizing of test unit and have market outlook widely in New type of current.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing, wherein:
Fig. 1 is the structural representation that New type of current of the present utility model is adjusted test unit one preferred embodiment;
Fig. 2 is the electric principle schematic that New type of current of the present utility model is adjusted test unit one preferred embodiment.
Embodiment
To the technical scheme in the utility model embodiment be clearly and completely described below, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making all other embodiment that obtain under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment comprises:
A kind of New type of current is adjusted test unit, comprising: rack, control circuit, regulator, transformer, reactor and sound and light alarm and protective device.
Described control circuit, regulator, transformer, reactor and sound and light alarm and protective device are all arranged on the inside of described rack, described control circuit comprises digital display ammeter, described digital display ammeter is arranged on the surface of described rack, described digital display ammeter can be set current value, can send and report to the police and actuating signal exceeding when this sets current value, the elementary measurement mechanism that is electrically connected with of described transformer, described control circuit and described regulator are electrically connected respectively the secondary of described transformer, described reactor is electrically connected the secondary of described regulator, described sound and light alarm and protective device are electrically connected the output terminal of described digital display ammeter and are arranged on the top of described rack, described sound and light alarm and protective device comprise posts a letter, sound and light alarm and electric safety protector.
Preferably, described control circuit comprises button, knob, contactor, relay and Hall element, and described Hall element is electrically connected the elementary of described transformer, and Hall element can be followed the tracks of primary voltage.
Preferably, the elementary of described transformer is the connection of Y type, and secondary is three single-phase outputs.
Preferably, described three single-phase outputs are electrically connected respectively the input end of described regulator.
Preferably, the described digital display ammeter that described three single-phase outputs connect is all circumscribed with calibration equipment.
Preferably, described measurement mechanism is high precision current transformer.
Preferably, described regulator is electric voltage regulator.
In Fig. 2, TA1 represents high precision current transformer, and T1 is transformer, and TV1-1 is regulator, and L1-1, L1-2 are reactor, and K1 is switch.Transformer T1 capacity is 15KVA, elementary input voltage 3.5V, and phase three-wire three Y type connects, and adopts three 60*8mm
2copper bar inlet wire mode, it is zinc-plated that copper bar exposes rack part, and elementary maximum input current is 1500A; Secondaryly be connected with three groups of regulators, three groups of reactors respectively, regulator TV1-1 capacity is 0-250V, 5KVA; The impedance of reactor L1-1, L1-2 is 22 Ω.Reactor is switched and is dropped into L1-1 or L1-1, L1-2 by switch K1.
Every loop is every by step-up transformer T1, regulator TV1-1 and reactor L1-1, tri-major part compositions of L1-2.The current adjusting device of the different range of current in many multiple loops can use same constant voltage source.Utilize panel operation knob manually to adjust regulator, regulate regulator and reactor impedance, utilize both impedance reflection effect technology to change the output impedance of this device, make primary produce the electric current that can meet testing requirements.The utility model can three-phase carry out coarse adjustment to required electric current to each loop by panel knob simultaneously, then carries out that each loop is every finely tunes separately mutually to precision current.The every phase of each independent loop has overcurrent protection; in the time that loop test electric current exceedes current protective device setting value (current protective device can be set arbitrarily protection value with interior electric current to 1500A); holding circuit can be moved, and sends sound and light alarm, automatically stops this loop test.The every phase of each independent loop has overvoltage protection; in the time that loop test voltage exceedes the specified input voltage 10% of transformer primary side, holding circuit can be moved, and sends sound and light alarm; the every phase of each independent loop had external calibration equipment, to equipment instrument is carried out to verification.Three-phase current degree of regulation of the present utility model is ± 0.2%.
The beneficial effect that the utility model New type of current is adjusted test unit is:
One, make same constant pressure source meet each capacity isolating switch (as low-voltage distribution cabinet) temperature rise performance test of different circuit, the accuracy of warranty test result and repeatable isolating switch (as low-voltage distribution cabinet) temperature rise performance test by adopting Three-Phase Transformer to export separately connecting circuit;
Two,, by adopting transformer and regulator to be used in conjunction with, make electric current adjust test unit and there is the advantages such as low-loss, high-level efficiency, high precision and control function easy and simple to handle;
Three, adjust test unit with respect to general electric current, the regulator that the New type of current is here adjusted test unit employing is electric voltage regulator, has the advantages such as loss is little, efficiency is high, leakage field is little, noise overload capacity of low moment is strong.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (7)
1. a New type of current is adjusted test unit, it is characterized in that, comprise: rack, control circuit, regulator, transformer, reactor and sound and light alarm and protective device, described control circuit, regulator, transformer, reactor and sound and light alarm and protective device are all arranged on the inside of described rack, described control circuit comprises digital display ammeter, described digital display ammeter is arranged on the surface of described rack, the elementary measurement mechanism that is electrically connected with of described transformer, described control circuit and described regulator are electrically connected respectively the secondary of described transformer, described reactor is electrically connected the secondary of described regulator, described sound and light alarm and protective device are electrically connected the output terminal of described digital display ammeter and are arranged on the top of described rack.
2. New type of current according to claim 1 is adjusted test unit, it is characterized in that, described control circuit comprises button, knob, contactor, relay and Hall element, and described Hall element is electrically connected the elementary of described transformer.
3. New type of current according to claim 1 is adjusted test unit, it is characterized in that, the elementary of described transformer is the connection of Y type, and secondary is three single-phase outputs.
4. New type of current according to claim 3 is adjusted test unit, it is characterized in that, described three single-phase outputs are electrically connected respectively the input end of described regulator.
5. New type of current according to claim 3 is adjusted test unit, it is characterized in that, the described digital display ammeter that described three single-phase outputs connect is all circumscribed with calibration equipment.
6. New type of current according to claim 1 is adjusted test unit, it is characterized in that, described measurement mechanism is high precision current transformer.
7. New type of current according to claim 1 is adjusted test unit, it is characterized in that, described regulator is electric voltage regulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420328763.4U CN203909101U (en) | 2014-06-19 | 2014-06-19 | Novel current adjustment testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420328763.4U CN203909101U (en) | 2014-06-19 | 2014-06-19 | Novel current adjustment testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203909101U true CN203909101U (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420328763.4U Expired - Lifetime CN203909101U (en) | 2014-06-19 | 2014-06-19 | Novel current adjustment testing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203909101U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062478A (en) * | 2014-06-19 | 2014-09-24 | 苏州上电科电气设备有限公司 | Novel current regulation testing device |
-
2014
- 2014-06-19 CN CN201420328763.4U patent/CN203909101U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062478A (en) * | 2014-06-19 | 2014-09-24 | 苏州上电科电气设备有限公司 | Novel current regulation testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 215000, No. 3, Wanfeng Road, Lake Industrial Park, Hope Town, Suzhou, Jiangsu, Xiangcheng District Patentee after: Shangke intelligent electric (Suzhou) Co.,Ltd. Address before: 215155, No. 3, Wanfeng Road, Lake Industrial Park, Hope Town, Suzhou, Jiangsu, Xiangcheng District Patentee before: SUZHOU SEARI ELECTRICAL EQUIPMENT Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20141029 |