CN2319817Y - Integral maintenance experiment appts. of frequency converting governor - Google Patents
Integral maintenance experiment appts. of frequency converting governor Download PDFInfo
- Publication number
- CN2319817Y CN2319817Y CN 98236469 CN98236469U CN2319817Y CN 2319817 Y CN2319817 Y CN 2319817Y CN 98236469 CN98236469 CN 98236469 CN 98236469 U CN98236469 U CN 98236469U CN 2319817 Y CN2319817 Y CN 2319817Y
- Authority
- CN
- China
- Prior art keywords
- frequency converter
- test
- switch
- frequency
- automatic switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Inverter Devices (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model relates to the technical field of a comprehensive test to a frequency governor during the maintenance process of the frequency governor, and the utility model discloses a comprehensive testing apparatus for the cold state test, the hot state zero load test, the computer test and the load test of the frequency governor. The utility model is characterized in that the utility model is composed of a comprehensive test cabinet for the frequency converter, a test bench for the computer test of the frequency governor and a load test cabinet for the frequency converter; the utility model can test the resistance value of each point of the main circuit of the frequency changer, the resistance value of ground insulation, the resistance value of the module of the rectificate bridge and the resistance value of the module of the converter bridge of the main circuit; the utility model can carry out simple operation on various control cabinets of the frequency converter, and the utility model can test and analyze the characteristic of the frequency converter and input and output waveshapes by a computer; besides, the utility model can carry out a zero load test and a load test to the frequency converter.
Description
The utility model relates to the technical field of variable-frequence governor being carried out integration test in maintenance process, particularly can provide a cover proving installation more comprehensive and simple to operate to test, analysis, no-load test, load test of the characteristic of frequency converter and input, each amount of output.
Drive with variable-frequence governor at present and exchange cage electromotor and carry out stepless speed regulation and become the main trend of transmission field in the world.Begun a large amount of uses at home,, still do not had the specialized equipment that can carry out integration test now both at home and abroad frequency converter so the maintenance of this equipment just becomes a new problem.
The purpose of this utility model is to fill up above-mentioned blank to provide a cover experiment test device to its every technical indicator and parameter and trouble spot analyzing and diagnosing more comprehensive and simple to operate for the maintenance of multiple frequency converter.
The utility model task is finished like this:
A kind of variable-frequence governor comprehensive maintenance test unit is characterized in that: this device is made up of frequency converter compbined test cabinet, frequency converter COMPUTER DETECTION testing table, frequency converter load test cabinet three parts.
Be provided with power light, warning light and starting, stop signal button on frequency converter compbined test cabinet panel top, the middle part is provided with input voltage table, incoming frequency table, detects frequency converter rectifier bridge dc voltage table, AC-3 Φ reometer, stabilized voltage supply table, megger test table, major loop test chart, be provided with pushbutton switch and the pot that each amount of frequency converter is controlled in the panel bottom, and the pushbutton switch that is used for detecting frequency converter rectifier bridge and inverter bridge module resistance, also be provided with switch and automatic switch; Switching Power Supply WK, signal transformer XB1-6, intermediate relay ZJ 1, automatic switch ZK0, line contactor C1, fairing ZL, transformer WDB, current sensor HL, automatic switch ZK7, two-way disconnecting link switch GK, automatic switch ZK8, KX, contactor MC1, automatic switch ZK6, socket CZ1, CZ2, molten F, distributing terminal block, filter capacitor C soon are housed in frequency converter compbined test cabinet inside.
Digital converter input voltage table, frequency set-point indicator gauge, frequency meter, warning light, contactor button are housed on frequency converter COMPUTER DETECTION testing table panel, computing machine, discharge button, AC-3 Φ voltage table, testing table, cable that waveform shows are carried out in the input and output of frequency converter lay the hole.
Alternator indicator, warning light, enabling signal button, stop signal button, frequency converter input AC-450V voltage table, AC-reometer, DC-600V voltage table, AC-3 Φ output voltage meter, AC-3 Φ reometer are housed on the panel of frequency converter load test cabinet, resistance box ZX1-6, current transformer LH, contactor MC2, the single-phase reactor HLK of flat ripple are housed in frequency converter load test cabinet inside.
Brief description frequency converter compbined test primary heat transport system circuit diagram.
By automatic switch ZK0; ZK1; C1; automatic coupling voltage regulator; automatic switch ZK4 forms the main circuit power supply part; automatic switch ZK2 is in parallel with major loop; and be connected with the 380/220V transformer; power pack at major loop also is parallel with automatic switch ZK3 connection fairing; the frequency converter that has adds filter capacitor C and automatic switch ZK8; by director switch GK; contactor MC1; MC2 forms output and constitutes unloaded; the test loop of carrying is arranged; P at frequency converter; be provided with one between the P1 point and comprise intermediate relay ZJ 1 and the protection loop of melting F soon; between the P of frequency converter point and N point, also be connected to discharge resistance R, be the input of short circuit frequency converter; the output end current sensor is also in input; output terminal is parallel with automatic switch ZK6 respectively; ZK7.
The utility model is simple to operate, can reach the each point insulation against ground of frequency converter major loop the rectifier bridge of major loop and the resistance of inverter bridge module are tested, can be to the various controls of frequency converter by simple operations cashier's office in a shop, can carry out COMPUTER DETECTION and analysis to the characteristic and the input and output waveform of frequency converter, can do zero load and load test frequency converter.
Wherein frequency converter compbined test cabinet has following function:
1. can test the each point insulation against ground of frequency converter major loop, realize by switch with M Ω insulation resistance meter.
2. can normally whether test the rectifier bridge of frequency converter major loop and the resistance of inverter bridge module, need change thereby identify which module damage by Ω table and switch.
3. can take into account that to carry out comprehensive card given to the controlled quentity controlled variable of frequency converter by K1-K20 and current potential.
4. can be given to the need active voltage, electric current is given, frequency converter provides current potential or electric current given by the stabilized voltage supply table.
5. AC-3 Φ 380V and AC-3 Φ 220V frequency converter experiment power supply can be provided.
6. can show frequency converter input AC voltage, rectifier bridge dc voltage, frequency converter output frequency and three-phase output voltage and output current.
7. can be provided in the maintenance process protection loop to frequency converter.Promptly in the frequency converter process of the test, melt the damage of protection module soon and alerting signal is provided by adding suitable volume of passenger traffic between its p and p1.
8. can supply no once-through type frequency converter direct supply.
9. but can provide pressure regulation AC-3 Φ power supply slowly to boost in test to prevent to burn module and fault expansion.
10. the operation of card automatic switch and the contactor operation of frequency converter input and output and charged motivation no-load test are provided.
The computer testing platform has following function:
1. frequency converter can be placed on this platform and keep in repair.
2. card has the frequency converter input voltage to show that given voltage shows that output frequency shows, three-phase output voltage shows, more than is digital watch and shows.
3. can be by computing computer CRT to frequency converter input, output waveform demonstration and efficient, torque, frequency analysis, the flux path analysis of V/F curve with show this part gain the national patent, the patent No. is 94110205.
Frequency converter load test platform has following function:
1. the Y/ △ by reactor connects the simulation motor load, thereby can reach rated current and transship test in 150% 1 minutes according to the adaptive resistance of frequency inverter capacity.
2. its input, output voltage and load current can show on card.
3. can carry out the automatic switch and the contactor operation of load test in card.
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.
Fig. 1 is a frequency converter compbined test cabinet outside drawing.
Fig. 2 is a frequency converter computer system test board outside drawing.
Fig. 3 is a frequency converter load test cabinet.
Fig. 4 is a frequency converter compbined test cabinet internal layout.
Fig. 5 is a frequency converter load test cabinet internal layout.
Fig. 6 is frequency converter combined test apparatus primary heat transport system figure.
Fig. 7 is frequency converter combined test apparatus control system figure.
Fig. 8 is frequency converter compbined test lamp system figure.
One, sees that Fig. 1 tests for the each point insulation against ground to the frequency converter major loop, be by the insulating requirements of the M Ω insulation resistance meter 14 on the cabinet panel 41 according to measured body, select the output voltage grade (500v or 1000v) of insulation resistance meter to connect the power switch of showing earlier, operate switch 37 then by the requirement of control system Fig. 7 detections of just can insulating to input, the output each point (N, P, R, S, T, U, V, W) of the major loop of frequency converter, after the survey with the power switch disconnection of table.
Two, whether what the resistance of the rectifier bridge of frequency converter major loop and inverter bridge module was detected module for confirmation is to test by Fig. 1 panel Ω table 15 normally, at first connect automatic switch 36 (ZK5) and just measuring each point by the requirement operation switch 39 of control system Fig. 7, reverse resistance value and be the forward or the reverse measurement class of selected simultaneously Ω table by the resistance value of being surveyed, and while push button switch 24,31 (k1-1, k1-2, see Fig. 1,7,8) rectifier bridge of frequency converter and the module resistance of inverter bridge are detected, the measurement class of then showing for the forward resistance value this moment should be selected in RX10 or RX100 place shelves, press the button switch 23 when simultaneously, 30 (K2-1, K2-2) time then pushbutton switch 30 to survey for negative test pencil be back resistance on the N point, this moment, the measurement class of table should be selected on RX10K or the RX100K class, press the button switch 22 when simultaneously, 29 (K3-1, K3-2) time then pushbutton switch 22 be that oppositely negative test pencil pushbutton switch 29 surveys on P point just test pencils, press the button switch 21 when simultaneously, 28 (K4-1, K4-2) 2 the time then pushbutton switch 21 the input/output module each point for positive test pencil frequency converter this moment is a back resistance on N point for oppositely negative test pencil pushbutton switch 28 is surveyed, will automatic switch 36 (ZK5) disconnection after the test.
Three, see that Fig. 1 can be achieved as follows function to each amount control manual operation pushbutton switch 16,17,18,19,20,25,26,27 of frequency converter, see that lamp system is shown in Figure 8, be the motor forward rotation during push button switch REV (16), when pressing the button switch FWD (17), be the motor backward rotation, then motor is in operation when pressing the button switch RUN (18), being the frequency converter reset mode when pressing the button switch RST (19), is that motor shuts down when pressing the button switch S TOP (20).For but the selection pushbutton switch 25,26,27 (X1, X2, X3) that reaches motor multistep speed just can realize, all working simultaneously just can meet the requirements of purpose with pot 38 (comprehensive set-point) in the control of above-mentioned each amount.Each duty has all been closed the signal lamp demonstration by closing the battle of pushbutton switch.
Four, the panel at Fig. 1 is equipped with stabilized voltage supply table 13, and the frequency converter active voltage is given, electric current is given and potential setting usefulness such as (DC-15V) in order to provide.Framework 111 is equipped with automatic switch 103 (KX) for control system operating power AC-2 Φ is provided 220V in the cabinet of Fig. 4, Switching Power Supply 88 (WK) also is housed uses for signal system power supply (DC-5V) is provided.
Five, Fig. 6 is the main circuit power supply system diagram of frequency converter compbined test cabinet, and power supply is three-phase four-wire system AC-3 Φ 380V, and cable is introduced and is connected to the electric power system that automatic switch ZK0 and automatic switch ZK1 and line contactor C1 form.Fig. 7 is the combined test apparatus basic control system, connect main circuit power by C1, and can connect no-load test circuit (band cage electromotor) and MC2 contactor 83 by MC1 contactor 104 and can connect and carry a test circuit, the switching of this system all has signal lamp to show, utilize often opening with normally closed auxiliary contact of contactor to connect red, greensignal light 3,4,5,6,66,67 expression operations, halted state, the power supply of its signal lamp is respectively by signal transformer 220/6V power supply (among Fig. 4 89,90,91,92,93,94).
Six, Fig. 1 automatic switch 33 (ZK-2) is connected AC-380/220V3 Φ transformer 99 and is provided AC-220V power supply for compbined test after close the pass, just can provide frequency converter test AC-380V3 Φ power supply through automatic coupling voltage regulator (outer attached) when automatic switch 35 (ZK4) is closed in the pass.And be provided with power supply signal pilot lamp 1, input voltage table 7 and incoming frequency table 8 shows at Fig. 1 plate face.
Seven, on Fig. 1 panel 41, be provided with detection frequency converter rectifier bridge dc voltage table 9, at Fig. 2 cabinet panel 57 digital converter input voltage table 47, frequency meter 49 and frequency set-point indicator gauge 48 are housed, also are provided with output AC-3 Φ voltage table 53,54,55 and the computing machine (CRT) 51 that waveform shows is carried out in the input and output of frequency converter.
Eight, see that Fig. 6 enlarges design in order to ensure test detection failure analysis and in frequency converter protection loop fast molten F is housed, as fast molten F since overload when fusing contactor CI, MC1, the MC2 in intermediate relay ZJ 1 (95) the adhesive control system all cut off the power supply and light warning signal lamp 50 (among Fig. 3 63) be housed to prevent to damage module and to test cabinet (Fig. 2) panel 57 in the frequency converter computer system.
Nine, see in Fig. 4 frequency converter multifunction test cabinet and be provided with fairing 98, by automatic switch ZK3 (34) among Fig. 1 connect can provide do not have in for direct current die mould frequency converter DC-600V power supply.The frequency converter that has need add filter capacitor 110 (Fig. 4) and close incompatible realization by automatic switch ZK8 (102), and Fig. 2 discharge button 52 is to shut down the back rectifier bridge quantity of electric charge that filter capacitor has for frequency converter in the experiment to be provided with by Fig. 6 discharge resistance R.
Ten, the no-load test of seeing Fig. 6 frequency converter be by two-way disconnecting link switch GK101 with the disconnecting link switch invest no-load test position manual operation starting, 104 switchings of stop signal button 5,6 (among Fig. 1) control MC1 contactor realize the frequency converter no-load test and have light to show and AC-3 Φ reometer 10,11,12 demonstration (see figure 1)s by signal transformer (220/6V) 91,92.
11, see Fig. 3,4,5, include frequency converter in 6 and have the load test function, manually close to close automatic switch ZK7 (100) and close simultaneously and close automatic switch ZK6 (105) and import for the short circuit frequency converter, the output end current sensor (is drawn in Fig. 6 empty frame part country granted patent (94110205) and disconnecting link switch GK101 invested the position that has load test is arranged, the manual operation starting, stop signal button 66,67 (see figure 3) control contactor MC2 (83) are (Fig. 5) logical, disconnected, contactor connects the single-phase reactor 84 of flat ripple, 85,86 and cast iron sheet resistance case 79 be load, the size of its load capacity is to determine (from 0.25-160KW) according to the frequency converter output capacity, the mode of connection of its resistance box can be connected into several strings by load capacity, the parallel form (see figure 5), the output AC-3 Φ voltage table 71 of frequency converter is housed at the panel 77 of Fig. 3,72,73 and at Fig. 5 by current transformer 80,81,82 are connected to load AC-3 Φ reometer 74,75,76 show, at Fig. 4 sign lighting transformer 93 is housed, 94 supply with on Fig. 3 panels 66,67 signal lamp power supplys are to show MC2 contactor work and halted state, and frequency converter input AC-voltage table 68 is housed and reometer 69 shows, be provided with current indicating signal lamp 62, also be provided with line contactor button 64 on Fig. 3 panel top, 65.
12, be provided with entrance hole 42 on Fig. 1 cabinet 41 and introduce the hole for feed cable, be provided with square hole 45 and circular hole 46 in cabinet 43 sides, Fig. 2 testing table 58 sides have slot 59 and are cable and lay the hole, and 61 are test cabinet door among Fig. 2.40,44,56,60,78 be the experiment cabinet handle.111 is framework in the frequency converter multifunction test cabinet among Fig. 4, and 106,107 is AC-3 Φ socket (using for external power), and 109 is distributing terminal block in the cabinet.87 is frequency converter load test cabinet internal framework among Fig. 5, and 58 for detecting test, maintenance platform among Fig. 2.
Claims (2)
1. variable-frequence governor comprehensive maintenance test unit, it is characterized in that: this device is made up of frequency converter compbined test cabinet, frequency converter COMPUTER DETECTION testing table, frequency converter load test cabinet three parts;
Be provided with power light, warning light and starting, stop signal button on frequency converter compbined test cabinet panel top, the middle part is provided with input voltage table, incoming frequency table, detects frequency converter rectifier bridge dc voltage table, AC-3 Φ reometer, stabilized voltage supply table, megger test table, major loop test chart, be provided with pushbutton switch and the pot that each amount of frequency converter is controlled in the panel bottom, and the pushbutton switch that is used for detecting frequency converter rectifier bridge and inverter bridge module resistance, also be provided with switch and automatic switch; Switching Power Supply WK, signal transformer XB1-6, intermediate relay ZJ 1, automatic switch ZK0, line contactor C1, fairing ZL, transformer WDB, current sensor HL, automatic switch ZK7, two-way disconnecting link switch GK, automatic switch ZK8, KX, contactor MC1, automatic switch ZK6, socket CZ1, CZ2, molten F, distributing terminal block, filter capacitor C soon are housed in frequency converter compbined test cabinet inside;
Digital converter input voltage table, frequency set-point indicator gauge, frequency meter, warning light, contactor button are housed on frequency converter COMPUTER DETECTION testing table panel, computing machine, discharge button, AC-3 Φ voltage table, testing table, cable that waveform shows are carried out in the input and output of frequency converter lay the hole;
Alternator indicator, warning light, enabling signal button, stop signal button, frequency converter input AC-450V voltage table, AC-reometer, DC-600V voltage table, AC-3 Φ output voltage meter, AC-3 Φ reometer are housed on the panel of frequency converter load test cabinet, resistance box ZX1-6, current transformer LH, contactor MC2, the single-phase reactor HLK of flat ripple are housed in frequency converter load test cabinet inside.
2. according to the frequency converter compbined test primary heat transport system circuit of the described variable-frequence governor comprehensive maintenance of claim 1 test unit; it is characterized in that: by automatic switch ZK0; ZK1; C1; automatic coupling voltage regulator; automatic switch ZK4 forms the main circuit power supply part; automatic switch ZK2 is in parallel with major loop; and be connected with the 380/220V transformer; power pack at major loop also is parallel with automatic switch ZK3 connection fairing; the frequency converter that has adds filter capacitor C and automatic switch ZK8; by director switch GK; contactor MC1; MC2 forms output and constitutes unloaded; the test loop of carrying is arranged; between the P of frequency converter point and P1 point, be provided with one and comprise intermediate relay ZJ 1 and the protection loop of melting F soon; between the P of frequency converter point and N point, also be connected to discharge resistance R, be the input of short circuit frequency converter; the output end current sensor is also in input; output terminal is parallel with automatic switch ZK6 respectively; ZK7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98236469 CN2319817Y (en) | 1998-01-14 | 1998-01-14 | Integral maintenance experiment appts. of frequency converting governor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98236469 CN2319817Y (en) | 1998-01-14 | 1998-01-14 | Integral maintenance experiment appts. of frequency converting governor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2319817Y true CN2319817Y (en) | 1999-05-19 |
Family
ID=33984516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98236469 Expired - Fee Related CN2319817Y (en) | 1998-01-14 | 1998-01-14 | Integral maintenance experiment appts. of frequency converting governor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2319817Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100416282C (en) * | 2004-09-17 | 2008-09-03 | 上海神源电气有限公司 | Virtual detector for variable frequency speed regulator |
| CN101738553B (en) * | 2009-12-25 | 2011-08-31 | 三一电气有限责任公司 | Universal testing system of frequency transformer and current transformer |
| CN102628922A (en) * | 2012-04-17 | 2012-08-08 | 无锡市大元广盛电气有限公司 | Manual testing board |
| CN109164320A (en) * | 2018-09-05 | 2019-01-08 | 中国铁路昆明局集团有限公司昆明车辆段 | System type inverter ancillary test device |
-
1998
- 1998-01-14 CN CN 98236469 patent/CN2319817Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100416282C (en) * | 2004-09-17 | 2008-09-03 | 上海神源电气有限公司 | Virtual detector for variable frequency speed regulator |
| CN101738553B (en) * | 2009-12-25 | 2011-08-31 | 三一电气有限责任公司 | Universal testing system of frequency transformer and current transformer |
| CN102628922A (en) * | 2012-04-17 | 2012-08-08 | 无锡市大元广盛电气有限公司 | Manual testing board |
| CN109164320A (en) * | 2018-09-05 | 2019-01-08 | 中国铁路昆明局集团有限公司昆明车辆段 | System type inverter ancillary test device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109406936B (en) | Alarm protection module for charging pile | |
| CN109347182B (en) | Charging pile control unit | |
| CN105703405A (en) | Extensible modular lithium ion battery uninterruptible power supply | |
| CN102035237A (en) | Wind-light-electricity complementary intelligent management system | |
| CN2319817Y (en) | Integral maintenance experiment appts. of frequency converting governor | |
| Jie et al. | Design of energy storage system using retired valve regulated lead acid (VRLA) batteries in substations | |
| CN2619355Y (en) | Relay protection live check instrument | |
| CN213228349U (en) | Split type direct current fills electric pile | |
| CN109787331A (en) | A kind of charger combination mounting process | |
| CN211217608U (en) | Rapid sorting device for retired power batteries | |
| CN220252067U (en) | Test system for low-voltage electric device | |
| CN1743865A (en) | Plastic-casing circuit breaker instantaneous characteristic test device | |
| CN207764356U (en) | A kind of novel traction motor experimental bench | |
| CN205945149U (en) | Power supply device for secondary control loop of medium-voltage circuit breaker cabinet | |
| CN201623229U (en) | Box-type charging and discharging station | |
| CN106059094B (en) | Distribution substation's transformer energy saving control system and method | |
| CN200990575Y (en) | Elevator frequency changer external hanging energy feedback device | |
| CN109327064B (en) | Charging pile group current distribution system | |
| CN109361215B (en) | High-voltage protection module | |
| CN109546684B (en) | Micro-grid power supply system | |
| CN109638939B (en) | High-voltage rectifier transformer unit | |
| CN102214937A (en) | Box type charging and discharging station | |
| CN220084946U (en) | Novel high-power battery detection equipment | |
| CN1022708C (en) | Discharge testing chest | |
| CN112305330A (en) | Multifunctional maintenance circuit applied to electrical switch cabinet and nuclear power station power distribution system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |