CN201210170Y - Multifunctional electric grid examine integrated tester - Google Patents
Multifunctional electric grid examine integrated tester Download PDFInfo
- Publication number
- CN201210170Y CN201210170Y CNU200820019116XU CN200820019116U CN201210170Y CN 201210170 Y CN201210170 Y CN 201210170Y CN U200820019116X U CNU200820019116X U CN U200820019116XU CN 200820019116 U CN200820019116 U CN 200820019116U CN 201210170 Y CN201210170 Y CN 201210170Y
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Abstract
The utility model relates to a multi-function electric-network service integrated tester of the circuit testing instrument, which adopts the technical proposal that the integrated tester consists of a control circuit and a control panel, wherein, the control circuit is formed by connecting three branch circuit to the output end of a power-source general control in parallelism, wherein, a first branch circuit is connected with a loop resistance testing module SKDA-01K; a second branch circuit is connected with a direct-current resistance testing module SKYZ-01K; a third branch circuit is serially connected with a starting-jumping power-source control, an alternative-current power-source output, a 1:1 separation output, and a rectification wave-filtration-to-direct-current control monitoring output; the control panel is provide with different plugging holes, displaying and adjusting control keys corresponding to the three branch circuits. The integrated tester is portable, and integrates the loop resistance testing, the transformer direct-current resistance testing and the switch starting-jumping, and has the advantages of fast testing speed, high accuracy, good stability, arc prevention, misoperation prevention, and the like.
Description
Technical field
The utility model relates to a kind of multi-functional electrical network maintenance comprehensive tester in the circuit test instrument.
Background technology
In the electrical network upkeep operation in every year, transformer substation switch opens jumps experiment owing to there is not special-purpose switch to open the jumping device, uses the reaying protection test case to replace usually, and this frequent operation has bigger infringement to the reaying protection test case.Contact resistance, secondary circuit direct current resistance, transformer and the mutual inductor direct current resistances etc. that are used for the measuring switch dynamic/static contact all are to adopt electric bridge, and the result of measurement is accurate inadequately, and measuring speed is slow, inefficiency.
The utility model content
The purpose of this utility model is exactly the defective that exists at prior art, a kind of multi-functional electrical network maintenance comprehensive tester is provided, can carry out switch and open and jump test, again measuring switch contact resistance, secondary circuit direct current resistance and transformer and mutual inductor winding coil direct current resistance simultaneously.
Its technical scheme is: be made up of control circuit and control panel two parts, wherein control circuit is that output terminal a power supply master control is connected in parallel to three branch roads, be connected with loop resistance test module SKDA-01K on first branch road, be connected with direct current resistance test module SKYZ-01K on second branch road, be in series with successively on the 3rd branch road to open and jump that output is isolated in power supply control, AC power output, 1:1, rectifying and wave-filtering monitors output to DC control; Corresponding three branch roads are provided with different jacks, demonstration and adjusting operating key on the control panel, specifically: the output of loop resistance test module be arranged on control panel on loop resistance p-wire jack with the loop resistance liquid crystal display, the loop-around test key is corresponding is connected; The output of direct current resistance test module be arranged on control panel on the direct current resistance p-wire jack and the extinguishing arc key of direct current resistance liquid crystal display, straight resistance zeroing knob, direct resistance metering, measure key, stable keys is corresponding is connected; DC control monitor on the output branch road be arranged on control panel on dc switch test jack, DC voltage liquid crystal display, DC voltage regulate and export with DC voltage that switch is corresponding to be connected; The power supply master control be arranged on control panel on corresponding connection of external power supply input, ground connection and power switch.
Such scheme also is included on the direct current resistance test module circuit and is connected with position adjuster, the direct current range selection button of this position adjuster correspondence on control panel.The control circuit partial devices of this tester is in casing, and control panel is as a side of casing.
Of the present utility model is pocket, integrates loop resistance test, DC Resistance of Transformer test and switch take-off, has test the speed fast, high, the good stability of accuracy, is not afraid of good characteristics such as arcing and maloperation.
Description of drawings
Accompanying drawing 1 is the schematic block circuit diagram of embodiment; Accompanying drawing 2 is synoptic diagram of control panel part; Accompanying drawing 3 is synoptic diagram that direct current resistance is measured; The synoptic diagram of accompanying drawing 4 loop-around test resistance.
Embodiment:
With reference to accompanying drawing 1, control circuit is that the output terminal a power supply master control is connected in parallel to three branch roads, be connected with loop resistance test module SKDA-01K on first branch road, be connected with direct current resistance test module SKYZ-01K on second branch road, be in series with successively on the 3rd branch road to open and jump that output is isolated in power supply control, AC power output, 1:1, rectifying and wave-filtering monitors output to DC control.
With reference to accompanying drawing 2, corresponding three branch roads are provided with different jacks, demonstration and adjusting operating key on the control panel, specifically: the output of loop resistance test module be arranged on control panel on loop resistance p-wire jack with the loop resistance liquid crystal display, the loop-around test key is corresponding is connected; The output of direct current resistance test module be arranged on control panel on the direct current resistance p-wire jack and the extinguishing arc key of direct current resistance liquid crystal display, straight resistance zeroing knob, direct resistance metering, measure key, stable keys is corresponding is connected; DC control monitor on the output branch road be arranged on control panel on dc switch test jack, DC voltage liquid crystal display, DC voltage regulate and export with DC voltage that switch is corresponding to be connected; The power supply master control be arranged on control panel on corresponding connection of external power supply input, ground connection and power switch.
The direct current resistance measuring operation:
The measurement of pure resistor load: connect external power supply as shown in Figure 3, four jacks with direct current resistance is measured connect with special test line and measured resistance RX.Lift the measurement key, the resistance of estimation measured resistance RX in direct current resistance measurement range selection hurdle, is selected suitable range.The power turn-on switch is connected the SKYZ-01K modular power source and is tested.Lift the extinguishing arc key, the direct current resistance LCDs shows " 00000 ", and scalable zero potentiometer when the truth of a matter is arranged makes it arrive the initial radix of measuring " 00000 ".Press the measurement key, by the SKYZ-01K module, apply a rated current for measured resistance RX through testing current line (C1, C2), feed back to magnitude of voltage that records of SKYZ-01K module by voltage tester line (P1, P2) again, then by SKYZ-01K module process data processing.Promptly, show the measured resistance value with digital form by the direct current resistance LCDs.Lift the measurement key after measurement finishes earlier, press the extinguishing arc key again and carry out extinguishing arc, prepare operation next time or shutdown.
The measurement of DC resistance of inductive load: when the big inductive load of measurement directly hindered, its operation steps was same as described above.Different is that inductive load exists inertia of current, needs certain electric current Time Created, so when lifting the extinguishing arc key after the energized, " C " that shows on the display screen disappears and should return to zero earlier this moment, presses and measures key and get final product the number of degrees.When reading is unstable, press stable keys and show stablely to improve numeral, note: press stable keys after about 5 seconds numeral could stablize.When commutation is measured under the open state, lift the measurement key earlier and press the extinguishing arc key again.Extinguishing arc symbol " L " disappears on the screen to be shown, can take anchor clamps and carry out commutation measurement or shutdown, in order to avoid electric arc is hurted sb.'s feelings or damaged instrument.
Loop resistance measurement operation: after start shows 0.0 P 1., press and measure key and enter test mode, by this key 0.5 second in short-term output current test fast.But as by this key about 5 seconds then output current continue 1 minute delay test.Needing test for the second time will wait until that d does not beat can carry out after becoming p.
The loop resistance running program as shown in Figure 4.Earlier external～220V power supply is inserted.Again p-wire is inserted loop resistance p-wire jack, correspondence is received the isolating switch primary side up and down on the terminals, attention: the positive pole of testing current line (I+) connects at one end with the positive pole (U+) of voltage tester line, the negative pole of testing current line (I-) connects at one end with the negative pole (U-) of voltage tester line, can not polarity connect instead, and voltage output line (U+, U-) is connected on the inboard of electric current output line (I+, I-), can not connect anti-.P-wire is connected fastening with isolating switch, it is good that contact is wanted, otherwise can cause the test result error bigger.The power turn-on switch is connected the SKYZ-01K modular power source and is tested.Press the measurement key, by the SKDA-01K module, apply the 100A rated current for tested isolating switch through testing current line (I+, I-), feed back to magnitude of voltage that records of SKDA-01K module by voltage tester line (U+, U-) again, then by SKDA-01K module process data processing.Promptly, show the loop resistance value of tested isolating switch with digital form by the loop resistance LCDs.Measure for the second time as needs, starting button when " d " on the LCDs such as need transfers " p " to, this process was 15 seconds, with the protection instrument.
The switching characteristic test:
At first contrast Fig. 2 access～220V ac working power supply, again with positive and negative p-wire one end, insert dc switch p-wire jack (red just, black negative) respectively, the other end inserts tested isolating switch.The power turn-on switch is regulated through pressure regulator, behind the rectifying and wave-filtering element rectifying and wave-filtering, outputs to " direct current output control switch ", and shows output numerical value by the DC voltage LCDs, be adjusted to the DC voltage numerical value that needs after.Control it by " direct current output control switch " at last, the break-make of dc switch p-wire jack output.After test finishes, earlier the direct current output control switch is got to the branch position, again pressure regulator is made zero.Separate power switch then, cut off external power supply.Remove p-wire at last.
Claims (3)
1, a kind of multi-functional electrical network maintenance comprehensive tester, it is characterized in that forming by control circuit and control panel two parts, wherein control circuit is that output terminal a power supply master control is connected in parallel to three branch roads, be connected with loop resistance test module SKDA-01K on first branch road, be connected with direct current resistance test module SKYZ-01K on second branch road, be in series with successively on the 3rd branch road to open and jump that output is isolated in power supply control, AC power output, 1:1, rectifying and wave-filtering monitors output to DC control; Corresponding three branch roads are provided with different jacks, demonstration and adjusting operating key on the control panel, specifically: the output of loop resistance test module be arranged on control panel on loop resistance p-wire jack with the loop resistance liquid crystal display, the loop-around test key is corresponding is connected; The output of direct current resistance test module be arranged on control panel on the direct current resistance p-wire jack and the extinguishing arc key of direct current resistance liquid crystal display, straight resistance zeroing knob, direct resistance metering, measure key, stable keys is corresponding is connected; DC control monitor on the output branch road be arranged on control panel on dc switch test jack, DC voltage liquid crystal display, DC voltage regulate and export with DC voltage that switch is corresponding to be connected; The power supply master control be arranged on control panel on corresponding connection of external power supply input, ground connection and power switch.
2, multi-functional electrical network maintenance comprehensive tester according to claim 1 is characterized in that being connected with position adjuster on direct current resistance test module circuit the direct current range selection button of this position adjuster correspondence on control panel.
3, multi-functional electrical network maintenance comprehensive tester according to claim 1 and 2, the control circuit partial devices that it is characterized in that this tester is in casing, and control panel is as a side of casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820019116XU CN201210170Y (en) | 2008-09-28 | 2008-09-28 | Multifunctional electric grid examine integrated tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820019116XU CN201210170Y (en) | 2008-09-28 | 2008-09-28 | Multifunctional electric grid examine integrated tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201210170Y true CN201210170Y (en) | 2009-03-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820019116XU Expired - Fee Related CN201210170Y (en) | 2008-09-28 | 2008-09-28 | Multifunctional electric grid examine integrated tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201210170Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614591A (en) * | 2015-03-04 | 2015-05-13 | 无锡韩光电器股份有限公司 | Loop resistance tester for automatic change-over switch |
| CN108594107A (en) * | 2018-01-04 | 2018-09-28 | 国网天津市电力公司电力科学研究院 | Comprehensive tester for breaker loop resistor experiment and mechanical characteristic test |
| US10459012B2 (en) | 2010-07-02 | 2019-10-29 | Belkin International, Inc. | System for monitoring electrical power usage of a structure and method of same |
-
2008
- 2008-09-28 CN CNU200820019116XU patent/CN201210170Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10459012B2 (en) | 2010-07-02 | 2019-10-29 | Belkin International, Inc. | System for monitoring electrical power usage of a structure and method of same |
| CN104614591A (en) * | 2015-03-04 | 2015-05-13 | 无锡韩光电器股份有限公司 | Loop resistance tester for automatic change-over switch |
| CN108594107A (en) * | 2018-01-04 | 2018-09-28 | 国网天津市电力公司电力科学研究院 | Comprehensive tester for breaker loop resistor experiment and mechanical characteristic test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090318 Termination date: 20110928 |