CN202059175U - Multifunctional test power supply device - Google Patents
Multifunctional test power supply device Download PDFInfo
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- CN202059175U CN202059175U CN2011200683005U CN201120068300U CN202059175U CN 202059175 U CN202059175 U CN 202059175U CN 2011200683005 U CN2011200683005 U CN 2011200683005U CN 201120068300 U CN201120068300 U CN 201120068300U CN 202059175 U CN202059175 U CN 202059175U
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Abstract
The utility model provides a multifunctional test power supply device, which comprises a power supply input control loop, an alternating-current and direct-current output control loop and a resistance measurement loop. A design integrates public operating control loop, public portions of a plurality of single electrical test devices are planned and integrated reasonably, intelligent protective functions are respectively designed according to different test functions, and accordingly reliability in safety under different field conditions and under use conditions of different operators is effectively guaranteed. Simultaneously, operating principles of various tests are integrated, different test devices and instrument function lines are connected in a solidified and reasonable manner, a problem of complicated process caused by connecting wires of different test functions is effectively solved, various conventional acceptance tests of a high-voltage electric supply and distribution system can be implemented, and operational need of an electrical test in a construction site is met to the maximum extent.
Description
Technical field
The utility model relates to a kind of job site electrical engineering handing-over multifunction test supply unit.
Background technology
In electrical engineering electric equipment commissioning test process, need use equipment and components and parts such as single-phase voltage regulating device, D.C. regulated power supply, strong current generator, ammeter, voltmeter, used equipment is many and scattered when carrying out electrical test, wiring is loaded down with trivial details and do not meet safety standard, bring very big inconvenience to engineering construction, can't adapt to present engineering short, frequently, fast construction characteristic and requirement.
The utility model content
The technical problems to be solved in the utility model is: a kind of multifunction test supply unit is provided, can satisfies the electrical test needs of job site to greatest extent.
The utility model is to solve the problems of the technologies described above the technical scheme of being taked to be: a kind of multifunction test supply unit is characterized in that: it comprises:
Power supply input control loop comprises automatic switch DK, single-phase voltage regulating device TY, contactor CJ, start button QA, stop button TA and isolating transformer GLB; Isolating transformer GLB comprises winding GLB-L1, first a secondary winding GLB-L2 and the second secondary winding GLB-L3; AC power inserts single-phase voltage regulating device TY by automatic switch DK, the two ends of single-phase voltage regulating device TY and a winding GLB-L1 are connected by two pairs of normally opened contacts of contactor CJ, and the coil of contactor CJ is connected with AC power with start button QA, stop button TA series connection back; The two ends of start button QA are in parallel with a pair of normally opened contact of contactor CJ;
The alternating current-direct current output control circuit comprises alternating current-direct current diverter switch XK, exchanges button TB, direct current button TC, the first ammeter A1 and the second ammeter A2, the first rectifier ZLQ1 and first stable-pressure device; Alternating current-direct current diverter switch XK comprises first to the 6th port switching XK-1, XK-2, XK-3, XK-4, XK-5 and XK-6; The second port switching XK-2 is connected with the two ends of the described first secondary winding GLB-L2 respectively with the 5th port switching XK-5; The first port switching XK-1 is connected with an end that exchanges button TB, and the other end that exchanges button TB is connected with the first ammeter A1, one end; The other end of the first port switching XK-1, the first ammeter A1, the 4th port switching XK-4 draw terminals respectively; The 3rd port switching XK-3 is connected with the first rectifier ZLQ1 input with the 6th port switching XK-6, output of the first rectifier ZLQ1 is connected with the end of direct current button TC, the other end of direct current button TC is connected with the second ammeter A2, one end, and another output of the first rectifier ZLQ1 and the other end of the second ammeter A2 are drawn terminals respectively; Described first stable-pressure device is in parallel with the output of the first rectifier ZLQ1; With
The resistance measurement loop comprises the second rectifier ZLQ2, second stable-pressure device, shunt FLQ, electric resistance array and selector switch; The input of the second rectifier ZLQ2 is connected with the described second secondary winding GLB-L3, and the output of the second rectifier ZLQ2 is connected with electric resistance array, and electric resistance array is controlled by selector switch; The output of the second rectifier ZLQ2 also is connected with shunt FLQ one end, and the other end of shunt FLQ is drawn terminals, and another output of the second rectifier ZLQ2 is drawn terminals; Described second stable-pressure device is in parallel with the output of the second rectifier ZLQ2.
Press such scheme, this device also comprises current transformer CT and the 3rd ammeter A3, and described isolating transformer GLB also comprises the 3rd secondary winding GLB-L4; Draw terminals after the end of the 3rd secondary winding GLB-L4 passes current transformer CT, the other end of the 3rd secondary winding GLB-L4 is connected with the second secondary winding GLB-L3, one end; The secondary coil two ends of current transformer CT are connected with the 3rd ammeter A3 two ends.
Press such scheme, the ratio of winding of the winding GLB-L1 of described isolating transformer GLB and the first secondary winding GLB-L2, the second secondary winding GLB-L3, the 3rd secondary winding GLB-L4 is respectively 1/1,22/1,110/1.
Press such scheme, described power supply input control loop also comprises current fuse and intelligent current protector EOCR-SS; The test side of intelligence current protector EOCR-SS is connected the output current signal of getting single-phase voltage regulating device TY with described single-phase voltage regulating device TY, and the control end of intelligent current protector EOCR-SS is connected with the coil of described contactor CJ; Current fuse is connected in the circuit.
Operation principle of the present utility model is: external 220V/12A AC power inserts single-phase voltage regulating device TY by automatic switch DK, when operation start button QA, contactor CJ gets electric work, and single-phase voltage regulating device TY is to the level and smooth input of winding GLB-L1 of isolating transformer GLB 0～250V voltage.Intelligence current protector EOCR-SS detects the output current of single-phase voltage regulating device TY, and when electric current reached the protective current value that sets, contactor CJ coil power was cut off in intelligent current protector EOCR-SS action, and isolating transformer GLB dead electricity is quit work.
When carrying out current transformer volt-ampere characteristic test or alternating voltage relay test, alternating current-direct current diverter switch XK selects " interchange " position, this moment, the first port switching XK-1 and the second port switching XK-2 were communicated with, the 4th port switching XK-4 and the 5th port switching XK-5 are communicated with, and get final product when pressing the button TB during electric current Table A 1 on the operative installations.
When the needs direct current operative power source or carry out DC voltage relay when test, alternating current-direct current diverter switch XK selects " direct current " position, this moment, the 3rd port switching XK-3 and the second port switching XK-2 were communicated with, the 6th port switching XK-6 and the 5th port switching XK-5 are communicated with, and the alternating current of isolating transformer GLB secondary winding GLB-L2 output is by output DC after the first rectifier ZLQ1 rectification; Get final product when pressing the button TB during electric current Table A 2 on the operative installations.
The beneficial effects of the utility model are:
1; by adopting the unified public operation control loop of isolating transformer GLB design; the public part of numerous monomer electric test equipment is reasonably planned with integrated; and design intelligentized defencive function respectively according to different test functions; guarantee different field conditions effectively; security reliability under the different operating personnel operating position; the operation principle of comprehensive various different tests of while; different tests equipment and instrument function circuit are implemented reasonably to solidify to connect; solve the loaded down with trivial details problem of technology that the wiring of different tests function brings effectively; can implement the various conventional commissioning tests of high pressure power supply-distribution system, satisfy the electrical test need of work of job site to greatest extent.
2, by increasing the number of isolating transformer GLB secondary winding, can realize more test function.
3, the ratio of winding of winding of isolating transformer GLB and each secondary winding is set, can satisfies the required power requirement of different tests.
4, by in circuit, increasing intelligent current protector and current fuse, avoid the too high fault that causes of electric current, play the effect of protective device and tested thing.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Fig. 2 is the schematic diagram of intelligent current protector.
Embodiment
Fig. 1 is circuit theory diagrams of the present utility model, and it comprises power supply input control loop, alternating current-direct current output control circuit and resistance measurement loop.
Power supply input control loop comprises automatic switch DK, single-phase voltage regulating device TY, contactor CJ, start button QA, stop button TA, current fuse RA1, RA2, intelligent current protector EOCR-SS, voltmeter V1, isolating transformer GLB, tutorial light LA and power supply indicator MD; Isolating transformer GLB comprises winding GLB-L1, the first secondary winding GLB-L2, the second secondary winding GLB-L3 and the 3rd secondary winding GLB-L4 one time.Wherein tutorial light LA and power supply indicator MD establish for the ease of observation.
Outside 220V AC power is from 1, No. 2 terminals input of device, and No. 1 terminals are connected respectively to the end of current fuse RA1 and No. 1 terminal of automatic switch DK; The other end of current fuse RA1 links to each other with the end of power supply indicator MD, the end of stop button TA and the L2 terminal of intelligent current protector EOCR-SS respectively; No. 2 terminals link to each other with the L1 terminal of No. 98 terminals of the other end of power supply indicator MD, intelligent current protector EOCR-SS, the end of tutorial light LA, intelligent current protector EOCR-SS and No. 4 terminals of automatic switch DK respectively; The other end of stop button TA links to each other with the end of start button QA, No. 7 terminals of normally opened contact of contactor CJ respectively; The other end of start button QA links to each other with No. 8 terminals of normally opened contact of contactor CJ loop A 2 terminals, contactor CJ and the other end of tutorial light LA respectively; Contactor CJ loop A 1 terminal links to each other with No. 95 terminals of intelligent current protector EOCR-SS; No. 2 terminals of automatic switch DK link to each other with the end of No. 1 terminal of single-phase voltage regulating device TY coil, voltmeter V1, No. 2 terminals of normally opened contact of contactor CJ, No. 1 terminal of intelligent current protector EOCR-SS respectively; No. 2 terminals of intelligence current protector EOCR-SS link to each other with the end of current fuse RA2, the other end of current fuse RA2 is connected to No. 2 terminals of single-phase voltage regulating device TY coil, and No. 3 terminals of automatic switch DK link to each other with the other end of No. 3 terminals of single-phase voltage regulating device TY coil, voltmeter V1, No. 4 terminals of normally opened contact of contactor CJ respectively; No. 1 terminal of the normally opened contact of contactor CJ links to each other with No. 1 terminal of a winding GLB-L1 of isolating transformer; No. 2 terminals of a winding GLB-L1 of isolating transformer GLB are connected to No. 3 terminals of normally opened contact of contactor CJ; No. 5 terminals of the normally opened contact of contactor CJ link to each other with No. 15 terminals, and No. 6 terminals of the normally opened contact of contactor CJ link to each other with No. 16 terminals.
The alternating current-direct current output control circuit comprises alternating current-direct current diverter switch XK, exchanges button TB, direct current button TC, the first ammeter A1, the second ammeter A2, the first rectifier ZLQ1 and first stable-pressure device; Alternating current-direct current diverter switch XK comprises first to the 6th port switching XK-1, XK-2, XK-3, XK-4, XK-5 and XK-6; First stable-pressure device is made up of the first diode D1 and first resistance R 1.
No. 1 terminal of the one or two level winding GLB-L2 links to each other with XK-2, No. 2 terminals of GLB-L2 link to each other with XK-5, XK-1 links to each other with No. 3 terminals of No. 5 terminals of the normally-closed contact that exchanges button TB and normally opened contact, No. 3 terminals respectively, No. 4 terminals of normally opened contact that exchange button TB are connected to the end of ammeter A2, No. 6 terminals of normally-closed contact that exchange button TB are connected respectively to the other end of ammeter A2, No. 4 terminals, and XK-4 is connected to terminals No. 5.
XK-3 links to each other with No. 3 terminals of rectifier ZLQ1, XK-6 links to each other with No. 1 terminal of rectifier ZLQ1, No. 2 terminals of rectifier ZLQ1 respectively with an end of first resistance R 1, the anode of the first diode D1, No. 7 terminals link to each other, No. 4 terminals of rectifier ZLQ1 respectively with the other end of first resistance R 1, the negative electrode of the first diode D1, No. 3 terminals of direct current button TC normally opened contact link to each other with No. 5 terminals of normally-closed contact, No. 4 terminals of direct current button TC normally opened contact link to each other with the end of ammeter A2, the other end of ammeter A2 respectively with No. 6 terminals of direct current button TC normally-closed contact, No. 6 terminals link to each other.
For the ease of observing, this device also increase exchanges output services indicator light YD and DC power supply relay indicating light LD.Be connected with the end of DC power supply relay indicating light LD, the end that exchanges output services indicator light YD behind No. 1 terminals and the current fuse RA1.The other end of DC power supply relay indicating light LD is connected with No. 2 terminals of direct current button TC normally opened contact, and the other end that exchanges output services indicator light YD is connected with No. 2 terminals that exchange the button TB normally opened contact.No. 1 terminal of No. 1 terminal of direct current button TC normally opened contact, interchange button TB normally opened contact is connected with No. 2 terminals.
The resistance measurement loop comprises the second rectifier ZLQ2, second stable-pressure device, shunt FLQ, electric resistance array and selector switch K1, K2, K3, and electric resistance array is controlled by selector switch.Second stable-pressure device is formed in parallel by first capacitor C 1, second resistance R 2 and the second diode D2.
No. 1 terminal of the second secondary winding GLB-L3 of isolating transformer GLB links to each other with No. 1 terminal of rectifier ZLQ2, No. 8 terminals respectively, No. 2 terminals of the second secondary winding GLB-L3 link to each other with No. 1 terminal of the 3rd secondary winding GLB-L4, No. 3 terminals of rectifier ZLQ2, No. 10 terminals respectively, No. 2 terminal circuits of the 3rd secondary winding GLB-L4 link to each other with No. 11 terminals with 9 respectively after passing current transformer CT, current transformer CT secondary coil one end links to each other with an end of ammeter, and the current transformer CT secondary coil other end links to each other with the other end of ammeter.
No. 2 terminals of rectifier ZLQ2 link to each other with the negative pole of a C1, an end of second resistance R 2, the anode of the second diode D2, an end of the 3rd capacitor C 3, an end of the 3rd resistance R 3, the negative pole of second capacitor C 2, No. 13 terminals respectively; No. 4 terminals of rectifier ZLQ2 link to each other with the positive pole of first capacitor C 1, the other end of second resistance R 2, the negative electrode of the second diode D2, an end of the 4th resistance R 4, the end of shunt FLQ, the positive pole of direct current millivoltmeter V2 respectively, and the other end of shunt FLQ links to each other with the negative pole of direct current millivoltmeter V2, No. 12 terminals respectively; The other end of the 4th resistance R 4 links to each other with positive pole, the other end of the 3rd resistance R 3, K1-3, K2-3, the K3-3 of second capacitor C 2 respectively; The positive pole of DC ammeter A4 links to each other with K1-4, K2-4, K3-4 respectively; The negative pole of DC ammeter A4 is connected to terminals No. 14; K1-1 links to each other with an end of resistance R 21, and K1-2 links to each other with the other end of resistance R 21; K1-5 links to each other with an end of resistance R 11, and K1-6 links to each other with the other end of resistance R 11; K2-1 links to each other with an end of resistance R 22, and K2-2 links to each other with an end of resistance R 23; The K2-5 terminal links to each other with an end of resistance R 12, and K2-6 links to each other with an end of resistance R 13; K3-1 links to each other with an end of resistance R 24, and K3-2 links to each other with an end of resistance R 25; K2-5 links to each other with an end of resistance R 14, and K2-6 links to each other with an end of resistance R 15; The other end of resistance R 22 links to each other with the other end of resistance R 23, the other end of resistance R 24, the other end of resistance R 25, the other end of resistance R 12, the other end of resistance R 13, the other end of resistance R 14, the other end of resistance R 15 respectively.
Above-mentioned K1-1, K1-2, K1-3, K1-4, K1-5, K1-6 are respectively the 1-6 terminal of selector switch K1, and selector switch K2, K3 are in like manner; Above-mentioned resistance R 11, R12, R13, R14, R15, R21, R22, R23, R24, R25 are the resistance in the electric resistance array.
Among the figure; 1-16 is the 1-16 terminals; RA1 is a RA-2A type current fuse; MD is the blue look indicator light of HB25-D type; QA/TA/LA is Trinitarian LASO-A type pilot guide; CJ is a CJ46 type contactor; TY is a 2kVA single-phase voltage regulating device; DK is a DZ47-63 type automatic switch; RA2 is a RA-15A type current fuse; V1 is the 250V A.C. voltmeter; GLB is an OA-2kVA type isolating transformer; EOCR-SS is intelligent current protector; A1; A2 is the 5A alternating current ammeter; LD/TC is two one orange button of Y090-A type indicating device, and TB/YD is two one yellow button of Y090-A type indicating device, ZLQ1; ZLQ2 is a rectifier; R1 is a 30K/10W resistance; D1 is the 3A diode, and CT is the 100/1A current transformer, and A3 is the 10A alternating current ammeter; V2 is the 50mV D.C. voltmeter; FLQ is the 200A shunt, and R4 is a 10A/0.06 Ω resistance, and C2 is a 50v/47000 μ F electrolytic capacitor; R3 is a 10W/100 Ω resistance; C3 is 250V/10 μ F, and C1 is a 50v/68000 μ F electrolytic capacitor, and R2 is a 10W/100 Ω resistance; D2 is the 3A diode; A4 is the 10A DC ammeter, and R11 is a 100A/1 Ω resistance, and R12 is a 100mA/51 Ω resistance; R13 is a 100mA/51 Ω resistance; R14 is a 1mA/5.1k Ω resistance, and R15 is a 1mA/5.1k Ω resistance, and R21 is a 1A/10 Ω resistance; R22 is a 10mA/510 Ω resistance; R23 is a 10mA/510 Ω resistance, and R24 is 100 μ A/51 Ω resistance, and R25 is 100 μ A/51 Ω resistance.
Fig. 2 is the schematic diagram of intelligent current protector; among the figure; 95,96 is normally closed output contact terminal; 95,98 for often opening the output contact terminal; L1, L2 are intelligent current protector working power terminal, and SS-1, SS-2 and SS-3, SS-4 are respectively winding connection terminal of two micro-transformer of current.Its principle is: when electric current flows through SS-1, SS-2 or SS-3, SS-4 terminal; the intelligence current protector detects in real time and compares with set point; when actual current during greater than set point; the intelligence current protector sends actuating signal; 95,96 contacts and 95, the action of 98 contacts disconnect the control loop power supply, reach the purpose of protection test equipment.
External 220V/12A power supply inserts the 2kVA single-phase voltage regulating device TY with four to one deceleration devices during use by automatic switch DK, when operation start button QA, contactor CJ gets electric work, and single-phase voltage regulating device TY is to the level and smooth input of winding GLB-L1 of isolating transformer GLB 0～250V voltage.Simultaneously; intelligence current protector EOCR-SS detects the output current of single-phase voltage regulating device TY, when electric current reaches the protective current value that sets, and intelligent current protector EOCR-SS action; cut off contactor CJ coil power, isolating transformer GLB dead electricity is quit work.
When carrying out current transformer volt-ampere characteristic test or alternating voltage relay test, alternating current-direct current diverter switch XK selects " interchange " position, and this moment, XK-1 and XK-2 were communicated with, and XK-4 and XK-5 are communicated with, when using external ammeter, tested thing is connected with No. 5 terminals with 3; When on the operative installations during electric current Table A 1, tested thing is connected with No. 5 terminals with 4, presses TB and gets final product, power supply to 3,4 and No. 5 terminals of first secondary winding GLB-L2 output, 0～250V/5A.
When the needs direct current operative power source or carry out DC voltage relay when test, alternating current-direct current diverter switch XK selects " direct current " position, this moment, alternating current-direct current diverter switch XK-3 and XK-2 were communicated with, XK-6 and XK-5 are communicated with, and the power supply of first secondary winding GLB-L2 output, 0～250V/5A is by output direct current 0～250V/5A power supply after the rectifier ZLQ1 rectification; Tested thing is connected with No. 7 terminals with 6; When on the operative installations during electric current Table A 2, press TB and get final product.
When carrying out the ac current relay test, tested thing is connected with No. 9 terminals with 8, the power supply of the second secondary winding GLB-L3 and the exportable 12V/200A of the 3rd secondary winding GLB-L4; When carrying out AC transformation than measurement or AC great current test, tested thing is connected with No. 11 terminals with 10, the power supply of the exportable 2V/1000A of the 3rd secondary winding GLB-L4.
When carrying out switch contact resistance measurement or direct current relay test, tested thing is connected with No. 13 terminals with 12, and the power supply of the 10V/200A of the 3rd secondary winding GLB-L3 output is by output direct current 10V/100A power supply after the rectifier ZLQ2 rectification; When carrying out D.C. resistance measurement or perceptual resistance measurement, tested thing is connected with No. 13 terminals with 14, the power supply of the 10V/200A of second secondary winding GLB-L3 output is by output direct current 10V/100A power supply after the rectifier ZLQ2 rectification, by operating selection switch K1, K2, K3, make out-put supply become direct current 10V/100 μ A～10A.
The utility model can be used as the operation protection control cabinet and uses when carrying out the withstand voltage test of insulation of electrical installation intensity AC and DC; Have and carry out current transformer volt-ampere characteristic test, alternating voltage relay test function at the construction field (site); Has the function that direct current operative power source is provided, carries out the DC voltage relay test; Can carry out the test of ac current relay; Have and carry out AC transformation than the function of measuring, AC great current is tested; Have and carry out the function that switch contact resistance is measured (0.0001-0.1 Ω), direct current relay test; Has the function of carrying out D.C. resistance measurement, perceptual resistance measurement (0.01-30k Ω).
Claims (4)
1. multifunction test supply unit, it is characterized in that: it comprises:
Power supply input control loop comprises automatic switch DK, single-phase voltage regulating device TY, contactor CJ, start button QA, stop button TA and isolating transformer GLB; Isolating transformer GLB comprises winding GLB-L1, first a secondary winding GLB-L2 and the second secondary winding GLB-L3; AC power inserts single-phase voltage regulating device TY by automatic switch DK, the two ends of single-phase voltage regulating device TY and a winding GLB-L1 are connected by two pairs of normally opened contacts of contactor CJ, and the coil of contactor CJ is connected with AC power with start button QA, stop button TA series connection back; The two ends of start button QA are in parallel with a pair of normally opened contact of contactor CJ;
The alternating current-direct current output control circuit comprises alternating current-direct current diverter switch XK, exchanges button TB, direct current button TC, the first ammeter A1, the second ammeter A2, the first rectifier ZLQ1 and first stable-pressure device; Alternating current-direct current diverter switch XK comprises first to the 6th port switching XK-1, XK-2, XK-3, XK-4, XK-5 and XK-6; The second port switching XK-2 is connected with the two ends of the described first secondary winding GLB-L2 respectively with the 5th port switching XK-5; The first port switching XK-1 is connected with an end that exchanges button TB, and the other end that exchanges button TB is connected with the first ammeter A1, one end; The other end of the first port switching XK-1, the first ammeter A1, the 4th port switching XK-4 draw terminals respectively; The 3rd port switching XK-3 is connected with the first rectifier ZLQ1 input with the 6th port switching XK-6, output of the first rectifier ZLQ1 is connected with the end of direct current button TC, the other end of direct current button TC is connected with the second ammeter A2, one end, and another output of the first rectifier ZLQ1 and the other end of the second ammeter A2 are drawn terminals respectively; Described first stable-pressure device is in parallel with the output of the first rectifier ZLQ1; With
The resistance measurement loop comprises the second rectifier ZLQ2, second stable-pressure device, shunt FLQ, electric resistance array and selector switch; The input of the second rectifier ZLQ2 is connected with the described second secondary winding GLB-L3, and the output of the second rectifier ZLQ2 is connected with electric resistance array, and electric resistance array is controlled by selector switch; The output of the second rectifier ZLQ2 also is connected with shunt FLQ one end, and the other end of shunt FLQ is drawn terminals, and another output of the second rectifier ZLQ2 is drawn terminals; Described second stable-pressure device is in parallel with the output of the second rectifier ZLQ2.
2. multifunction test supply unit according to claim 1 is characterized in that: this device also comprises current transformer CT and the 3rd ammeter A3, and described isolating transformer GLB also comprises the 3rd secondary winding GLB-L4; Draw terminals after the end of the 3rd secondary winding GLB-L4 passes current transformer CT, the other end of the 3rd secondary winding GLB-L4 is connected with the second secondary winding GLB-L3, one end; The secondary coil two ends of current transformer CT are connected with the 3rd ammeter A3 two ends.
3. multifunction test supply unit according to claim 2, it is characterized in that: the ratio of winding of the winding GLB-L1 of described isolating transformer GLB and the first secondary winding GLB-L2, the second secondary winding GLB-L3, the 3rd secondary winding GLB-L4 is respectively 1/1,22/1,110/1.
4. according to claim 1 or 2 or 3 described multifunction test supply units, it is characterized in that: described power supply input control loop also comprises current fuse and intelligent current protector EOCR-SS; The test side of intelligence current protector EOCR-SS is connected the output current signal of getting single-phase voltage regulating device TY with described single-phase voltage regulating device TY, and the control end of intelligent current protector EOCR-SS is connected with the coil of described contactor CJ; Current fuse is connected in the circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200683005U CN202059175U (en) | 2011-03-15 | 2011-03-15 | Multifunctional test power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200683005U CN202059175U (en) | 2011-03-15 | 2011-03-15 | Multifunctional test power supply device |
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| CN202059175U true CN202059175U (en) | 2011-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200683005U Expired - Fee Related CN202059175U (en) | 2011-03-15 | 2011-03-15 | Multifunctional test power supply device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163835A (en) * | 2011-03-15 | 2011-08-24 | 中国一冶集团有限公司 | Multifunctional test power supply device |
| CN104793028A (en) * | 2015-04-30 | 2015-07-22 | 中国一冶集团有限公司 | Three-phase multifunctional test power supply device and test method thereof |
-
2011
- 2011-03-15 CN CN2011200683005U patent/CN202059175U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163835A (en) * | 2011-03-15 | 2011-08-24 | 中国一冶集团有限公司 | Multifunctional test power supply device |
| CN104793028A (en) * | 2015-04-30 | 2015-07-22 | 中国一冶集团有限公司 | Three-phase multifunctional test power supply device and test method thereof |
| CN104793028B (en) * | 2015-04-30 | 2017-12-15 | 中国一冶集团有限公司 | A kind of three-phase multifunctional test power device and its test method |
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