CN206400018U - Traction frequency convertor test device - Google Patents
Traction frequency convertor test device Download PDFInfo
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- CN206400018U CN206400018U CN201621243293.7U CN201621243293U CN206400018U CN 206400018 U CN206400018 U CN 206400018U CN 201621243293 U CN201621243293 U CN 201621243293U CN 206400018 U CN206400018 U CN 206400018U
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Abstract
The utility model provides a kind of traction frequency convertor test device, including：Test device controls circuit, it is connected with main circuit power supply circuit and control loop power supply circuit, the corresponding main loop circuit of M kind traction frequency convertors is included in main circuit power supply circuit, test device control circuit is used to control any of main circuit power supply circuit corresponding main loop circuit of traction frequency convertor to the inside of frequency converter inner control loop power supply circuit and frequency converter to power, and M is the integer more than or equal to 1.When controlling the major loop test and the control loop test of traction frequency convertor that circuit realiration is traction frequency convertor by test device, different needs of the control loop test with traction frequency convertor for voltage are tested according to the major loop of traction frequency convertor, corresponding test supply voltage is provided respectively, so as to which the traction frequency convertor for solving existing mining electric locomotive is carried out in full voltage test process, the problem of power device is damaged in the major loop or control loop of traction frequency convertor can be caused.
Description
Technical field
The utility model is related to converter technology field, more particularly to a kind of traction frequency convertor test device.
Background technology
Storage battery mining electric locomotive is applied to the industries such as coal, metallurgy, mine, forest, railway and vcehicular tunnel construction
Narrow gauge railway ground non-explosion-proof place transport traction.Storage battery mining electric locomotive supplies direct current by battery, directly
Stream electricity is converted into the three-phase alternating current of voltage and frequency-adjustable by frequency converter, to drive two AC frequency conversions of mining electric locomotive
Traction motor, every motor rotor is connected by universal coupling with gear reduction box, is passed after two-stage gear reduction
Move on axletree, so as to drive mining electric locomotive to run., it is necessary to periodically to traction during the normal operation of mining electric locomotive
Frequency converter carries out function and fault test.
After traction frequency convertor is installed on mining electric locomotive, traction frequency convertor functional test is included to traction frequency convertor
Main loop circuit and traction frequency convertor control loop power supply circuit test.In the prior art, mining electric locomotive is utilized
Battery provides direct current and completes to carry out functional test to traction frequency convertor.
However, the traction frequency convertor total head of existing mining electric locomotive is powered in test process, traction frequency convertor can be caused
Major loop or control loop in power device damage.
Utility model content
The utility model provides a kind of traction frequency convertor test device, to solve the traction frequency conversion of existing mining electric locomotive
Device total head powers device power in the traction frequency convertor major loop caused in test process or control loop the problem of damage.
The utility model, which provides a kind of traction frequency convertor test device, to be included：Test device controls circuit, above-mentioned test
Device control circuit is connected with main circuit power supply circuit and control loop power supply circuit, and M is included in above-mentioned main circuit power supply circuit
The corresponding main loop circuit of traction frequency convertor is planted, above-mentioned test device control circuit is used to control to above-mentioned frequency converter internal control
Any of main circuit power supply circuit corresponding major loop of traction frequency convertor inside loop power supply circuit and above-mentioned frequency converter
Circuit is powered, and above-mentioned M is the integer more than or equal to 1.
Above-mentioned test device control circuit includes control loop power supply circuit and selects branch and the selection of main circuit power supply circuit
Branch, wherein, above-mentioned main circuit power supply circuit selection branch includes M different main loop circuit selection branches, above-mentioned control
Loop power supply circuit selection branch is used to control above-mentioned control loop power supply circuit to power, above-mentioned M different main loop circuits
Selection branch is used for correspondence and controls the corresponding main loop circuit of above-mentioned M kinds traction frequency convertor to power.
Above-mentioned control loop power supply circuit selection branch includes：First jerk rotary switch, the first button switch, first are handed over
Flow the normally opened auxiliary contact of contactor and the magnet coil of the first A.C. contactor, above-mentioned first jerk rotary switch and above-mentioned the
One button and above-mentioned first A.C. contactor magnet coil series connection, the normally opened auxiliary contact of above-mentioned first A.C. contactor with it is upper
State the first button switch in parallel；The normally opened auxiliary contact of above-mentioned first A.C. contactor are also connected with indicator lamp；Above-mentioned first is anxious
Stopping rotary switch and above-mentioned first button switch is used to control above-mentioned control loop power supply circuit to power, above-mentioned first jerk knob
When switch is closed and above-mentioned first button switch starts, above-mentioned control loop power supply circuit is powered, and above-mentioned first jerk knob is opened
When closing unlatching, above-mentioned control loop power supply circuit power-off.
Each main loop circuit selection branch of upper governor circuit selection branch includes：N jerks rotary switch, N are pressed
Button switch, the normally opened auxiliary contact of N A.C. contactors, the magnet coil of N A.C. contactors, the first A.C. contactor it is normal
Open and do not include above-mentioned N in the normally closed auxiliary contact of auxiliary contact and M-1 A.C. contactor, above-mentioned M-1 A.C. contactor
Individual A.C. contactor, above-mentioned N jerks rotary switch, above-mentioned N button switches, the normally opened auxiliary of above-mentioned first A.C. contactor
The normally closed auxiliary contact series connection of contact, the magnet coil of above-mentioned N A.C. contactors and above-mentioned M-1 A.C. contactor, it is above-mentioned
The normally opened auxiliary contact of N A.C. contactors are in parallel with above-mentioned N button switches, wherein, above-mentioned N is the integer more than or equal to 2.
Voltage regulator is included in above-mentioned main circuit power supply circuit, above-mentioned adjuster passes through the control to regulating resistor resistance
System, the different voltage of regulation output, the above-mentioned voltage regulator main loop circuit different from M is connected, each above-mentioned major loop
The main contacts of corresponding A.C. contactor is included in circuit, above-mentioned M different main loop circuit selection branches are used for correspondence and controlled
Make the closing and disconnection of the main contacts of the A.C. contactor of above-mentioned M different main loop circuits.
The utility model provides a kind of traction frequency convertor test device, including：Test device controls circuit, and it is with leading back
Returned in road power supply circuit and the connection of control loop power supply circuit, main circuit power supply circuit comprising the corresponding master of M kind traction frequency convertors
Road circuit, test device control circuit is used to control to lead back to the inside of frequency converter inner control loop power supply circuit and frequency converter
The corresponding main loop circuit of any of road power supply circuit traction frequency convertor is powered, and M is the integer more than or equal to 1.By surveying
When the major loop test that control circuit realiration is traction frequency convertor and the control loop test of traction frequency convertor are put in trial assembly, according to
The major loop test of traction frequency convertor and the control loop test of traction frequency convertor are needed for the difference of voltage, and phase is provided respectively
The test supply voltage answered, so that the traction frequency convertor for solving existing mining electric locomotive is carried out in full voltage test process,
The problem of power device is damaged in the major loop or control loop of traction frequency convertor can be caused.
Brief description of the drawings
Fig. 1 is test device control circuit diagram in the utility model traction frequency convertor test device embodiment one；
Fig. 2 is that the control loop of control loop test in the utility model traction frequency convertor test device embodiment one is powered
Circuit diagram；
Fig. 3 is the main circuit power supply circuit of major loop test in the utility model traction frequency convertor test device embodiment one
Schematic diagram.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Term " first " in specification and claims of the present utility model and above-mentioned accompanying drawing, " second ", " the 3rd "
And/or the (if present) such as " the 4th " is for distinguishing similar object, without for describing specific order or successively time
Sequence.It should be appreciated that the data so used can be exchanged in the appropriate case, so as to implementation of the present utility model described herein
Example, for example, can be implemented with the order in addition to those for illustrating or describing herein.In addition, term " comprising " and " having "
And their any deformation, it is intended that covering is non-exclusive to be included, for example, containing series of steps or the mistake of unit
Journey, method, system, product or equipment are not necessarily limited to those steps clearly listed or unit, but may include unclear
It is that ground is listed or for the intrinsic other steps of these processes, method, product or equipment or unit.
The utility model controls circuit realiration to be tested for the major loop of traction frequency convertor and traction change by test device
During the control loop test of frequency device, different supply voltages are provided respectively, is tested and drawn according to the major loop of traction frequency convertor
The control loop test of frequency converter is needed there is provided the power supply of relevant voltage for the different of voltage, so as to solve existing ore deposit
With in the traction frequency convertor test process of electric locomotive, power device in the major loop or control loop of traction frequency convertor can be caused
The problem of damage.
The technical solution of the utility model is described in detail with specifically embodiment below.These are specific below
Embodiment can be combined with each other, and may be repeated no more for same or analogous concept or process in some embodiments.
Embodiment one
Fig. 1 is test device control circuit diagram in the utility model traction frequency convertor test device embodiment one.Such as
Shown in Fig. 1, test device control circuit includes：Control loop power supply circuit selects branch 0101 and the selection of main circuit power supply circuit
Branch, wherein, main circuit power supply circuit selection branch selects branch 0103~0106 comprising main loop circuit, and control loop is powered
Circuit selection branch 0101, which is used to power for control loop in traction frequency convertor when testing, controls control loop power supply circuit to power,
Main loop circuit selection branch 0103~0106 is used for correspondence and controls the different corresponding main loop circuits of traction frequency convertor to power.
Specifically, main circuit power supply circuit selection branch is set to four in the present embodiment, different tonnages are corresponded to respectively
Voltage in mining electric locomotive required for the test of traction frequency convertor major loop.
The test device control circuit of traction frequency convertor is connected with main circuit power supply circuit and control loop power supply circuit, is used
Connect in controlling traction frequency convertor main circuit power supply circuit and control loop power supply circuit power supply respectively when traction frequency convertor is tested
What is connect is switched on or switched off.In traction frequency convertor test, in the case that control loop power supply circuit power supply is connected, major loop is connected
The power supply of circuit, completes the test to traction frequency convertor main loop circuit.Wherein, in the present embodiment, in main circuit power supply circuit
Comprising the corresponding main loop circuit of M kind traction frequency convertors, test device control circuit is used to control to control loop power supply circuit
And any of main circuit power supply the circuit corresponding main loop circuit of traction frequency convertor or power supply, the M be more than etc.
In 1 integer.In the present embodiment, M values can be 4.
Optionally, control loop power supply circuit selection branch includes：First jerk rotary switch 2Ta, the first button switch
2Qa, the first A.C. contactor normally opened auxiliary contact 2Cc and the magnet coil 2Cb of the first A.C. contactor.Wherein, first is anxious
The magnet coil 2Cb for stopping rotary switch 2Ta with the first button switch 2Qa and the first A.C. contactor connects, anxious when pressing first
Stop after rotary switch 2Ta and the first button switch 2Qa, the magnet coil 2Cb of the first A.C. contactor is powered and produces magnetic field,
The normally opened auxiliary contact 2Cc closures of the first A.C. contactor in the presence of electromagnetic force；As the first jerk rotary switch 2Ta or
When first button switch 2Qa disconnects, the magnet coil 2Cb power-off of the first A.C. contactor, first in the presence of spring force
The normally opened auxiliary contact 2Cc of A.C. contactor disconnects.The normally opened auxiliary contact 2Cc of first A.C. contactor and the first button switch
2Qa is in parallel, after the normally opened auxiliary contact 2Cc closures of the first A.C. contactor, control loop power supply circuit selection branch 0101
Conducting, so that the power supply connection of the control loop power supply circuit of traction frequency convertor is switched on, can be carried out to traction frequency convertor control
Loop power supply circuit processed is tested；When the normally opened auxiliary contact 2Cc of the first A.C. contactor disconnects, control loop is powered electricity
Road selection branch 0101 is not switched on, so that the power supply connection of the control loop power supply circuit of traction frequency convertor is disconnected, this
When cannot carry out testing traction frequency convertor control loop power supply circuit.
Optionally, test device control circuit also includes, indicator lamp branch road 0102.Indicator lamp shows the way indicator lamp 2D in 0102
Connected with the normally opened auxiliary contact 2Cc of the first A.C. contactor, when the normally opened auxiliary contact 2Cc of the first A.C. contactor is closed
When, indicator lamp 2D brightens, for indicating that control loop power supply circuit selection branch 0101 has turned on, at this point it is possible to be led
Loop power supply circuit selects the operation of branch；When the normally opened auxiliary contact 2Cc of the first A.C. contactor disconnects, indicator lamp 2D is not
It can brighten, for indicating that control loop power supply circuit selection branch 0101 is not switched on, now, it is not possible to carry out main circuit power supply
Circuit selects the operation of branch.
Optionally, each main loop circuit selection branch of governor circuit selection branch includes：N jerks rotary switch,
Normally opened auxiliary contact, the magnet coil of N A.C. contactors, the first ac contactor of N button switches, N A.C. contactors
Institute is not included in the normally opened auxiliary contact of device and the normally closed auxiliary contact of M-1 A.C. contactor, the M-1 A.C. contactor
State n-th A.C. contactor, the N jerks rotary switch, the N button switches, first A.C. contactor it is normal
Open the normally closed auxiliary contact string of auxiliary contact, the magnet coil of the N A.C. contactors and the M-1 A.C. contactor
Connection, the normally opened auxiliary contact of the N A.C. contactors are in parallel with the N button switches, wherein, the N is more than or equal to 2
Integer.
In the present embodiment, by taking main loop circuit selection branch 0103 as an example, main loop circuit selection branch 0103 includes：The
Two jerk rotary switch 3Ta, the second button switch 3Qa, the normally opened auxiliary contact 3Cc of the second A.C. contactor, the second exchange connect
The magnet coil 3Cb of tentaculum, the normally opened auxiliary contact 2Cc of the first A.C. contactor and 3 A.C. contactors normally closed auxiliary are touched
Point, wherein, the normally closed auxiliary contact of 3 A.C. contactors is in the main loop circuit selection branch 0103 of the present embodiment：3rd
Normally closed auxiliary contact 4Cd, the normally closed auxiliary contact 5Cd of the 4th A.C. contactor of A.C. contactor and the 5th A.C. contactor
Normally closed auxiliary contact 6Cd.
Optionally, the second jerk rotary switch 3Ta, the second button switch 3Qa, the normally opened auxiliary of the first A.C. contactor are touched
(the 3rd exchanges and connects the normally closed auxiliary contact of point 2Cc, the magnet coil 3Cb of the second A.C. contactor and above-mentioned 3 A.C. contactors
Normally closed auxiliary contact 4Cd, the normally closed auxiliary contact 5Cd of the 4th A.C. contactor of tentaculum and the 5th A.C. contactor it is normally closed auxiliary
Help contact 6Cd) connect, the normally opened auxiliary contact 3Cc of the second A.C. contactor is in parallel with the second button switch 3Qa.
Optionally, the test of traction frequency convertor major loop is powered in traction frequency convertor control loop tests the situation of power on
It is lower to carry out.In the present embodiment, control loop power supply circuit selection branch 0101 turn on, the first A.C. contactor it is normally opened auxiliary
Contact 2Cc is helped to carry out following operation in the case of closing, the 3rd button switch 4Qa, the 4th button switch 5Qa and the 5th button are opened
Close 6Qa be in non-down state, magnet coil 4Cb, the magnet coil 5Cb of the 5th A.C. contactor of the 3rd A.C. contactor and
The magnet coil 6Cb of 6th A.C. contactor does not produce magnetic field, so, the normally closed auxiliary contact 4Cd of the 3rd A.C. contactor,
The normally closed auxiliary contact 5Cd of 4th A.C. contactor and the normally closed auxiliary contact 6Cd of the 5th A.C. contactor be not by magnetic field force
Effect be in closure state.After the second jerk rotary switch 3Ta and the second button switch 3Qa is pressed, the second exchange
The magnet coil 3Cb of contactor is powered and produces magnetic field, and the normally opened auxiliary of the first A.C. contactor is touched in the presence of electromagnetic force
Point 3Cc is closed, now, and main loop circuit selection branch 0103 turns on；When the second jerk rotary switch 3Ta or the second button are opened
When closing 3Qa disconnections, the magnet coil 3Cb power-off of the second A.C. contactor, the second A.C. contactor in the presence of spring force
Normally opened auxiliary contact 3Cc disconnect, now, main loop circuit selection branch 103 do not turn on.
Main loop circuit selects branch 0104 and the break-make of main loop circuit selection branch 0105 to be selected with main loop circuit
The break-make control of branch 103 is identical, will not be repeated here.
Optionally, when the second jerk rotary switch 3Ta, the second button switch 3Qa, the 3rd button switch 4Qa and the 3rd are anxious
Stop rotary switch 4Ta while when pressing, the normally closed auxiliary contact 3Cd of the second A.C. contactor and the 3rd A.C. contactor it is normally closed
Auxiliary contact 4Cd is powered simultaneously produces magnetic field, the normally closed auxiliary contact 3Cd of the second A.C. contactor and the 3rd A.C. contactor
Normally closed auxiliary contact 4Cd is disconnected by the effect of magnetic field force simultaneously, so main loop circuit selection branch 0103 and major loop electricity
Road selection branch 0104 disconnects.Therefore, in the present embodiment test device control circuit, in the absence of more than one main loop circuit
The situation that jerk rotary switch and button switch are pressed simultaneously in selection branch, so that only existing a main loop circuit
Branch leading is selected, the effect of the protection operating personnel safety in traction frequency convertor test is played.
Fig. 2 is that the control loop of control loop test in the utility model traction frequency convertor test device embodiment one is powered
Circuit diagram.As shown in Fig. 2 the control loop power supply circuit of control loop test includes：Fuse FU2, air switch
QF2, the main contacts 2Ca of A.C. contactor, pressure regulator B3, isolation boosting device B4, fastp-acting fuse FU4, three phase inverter bridge (D12
~D17 constitute), R7/R8 and C8/C9 composition absorption filter circuit and voltmeter V5, V6, V7, V8 and V12.
When being tested by the circuit shown in Fig. 2 300KVA traction frequency convertor control loop, current direction is as follows：
Three-phase 380V alternating currents are inputted in input L1, L2, L3, and three-phase electricity 101,102 and 103, three-phase electricity are obtained through overcurrent fuse FU2
101st, 102 and 103 flow through three-phase electricity 201,202 and 203 is obtained after air switch QF2, control loop power supply circuit is selected in Fig. 1
When selecting the conducting of branch 0101, the main contacts 2Ca of A.C. contactor is connected in Fig. 2, and three-phase electricity 201,202 flows through to exchange with 203 to be connect
Three-phase electricity 301,302 and 303 is obtained after the main contacts 2Ca of tentaculum, three-phase electricity 301,302 and 303 is after 3KVA pressure regulators B3
Obtain three-phase electricity 401,402 and 403, three-phase electricity 401,402 and 403 flow through isolation boosting device B4 obtain three-phase electricity 501,502 with
503, three-phase electricity 501,502 and 503 obtains three-phase electricity 601,602 and 603, three-phase electricity 601,602 after fastp-acting fuse FU4
Direct current is exported after three phase inverter bridge with 603, the absorption filter circuit constituted finally by R7/R8 and C8/C9, realization pair
The power supply supply of 300KVA traction frequency convertor control loop；Voltmeter V5, V6, V7, V8 and V12 realization pair can be passed through simultaneously
The real-time monitored of current supply circuit voltage.
The major loop that Fig. 3 tests for major loop in the utility model 300KVA traction frequency convertor test device embodiment one
Power supply circuit schematic diagram.As shown in figure 3, the main circuit power supply circuit of major loop test includes：Fuse FU5, air switch
QF3, pressure regulator B5, main contacts (3Ca, 4Ca, 5Ca or 6Ca), fastp-acting fuse FU6, the three phase inverter bridge of A.C. contactor
(D22~D27 compositions), R9/R10 and C10/C11 compositions absorption filter circuit and voltmeter V9, V10 and V11.
Equally, main circuit power circuit structure and control loop power circuit are similar, and it mainly can be by not
The different voltage class to different tonnage mine locomotives are realized in switching between same A.C. contactor (3Ca, 4Ca, 5Ca and 6Ca)
Under major loop power supply supply output direct current.When selecting the conducting of branch 0103 with control loop power supply circuit in Fig. 1, Fig. 3
Exemplified by the main contacts 3Ca of middle A.C. contactor is connected.
When being tested by the circuit shown in Fig. 3 traction frequency convertor main loop circuit, current direction is as follows：Three-phase
380V alternating currents are inputted in input L1, L2, L3, and three-phase electricity 1101,1102 and 1103, three-phase electricity are obtained through overcurrent fuse FU5
1101st, 1102 and 1103 flow through three-phase electricity 1201,1202 and 1203 is obtained after air switch QF3, control loop is powered in Fig. 1
When circuit selection branch 0103 turns on, the main contacts 3Ca of A.C. contactor is connected in Fig. 3, and three-phase electricity 1201,1202 and 1203 flows
Three-phase electricity 2201,2202 and 2203 is obtained after main contacts 3Ca through A.C. contactor, three-phase electricity 2201,2202 and 2203 is passed through
Three-phase electricity 6201,6202 and 6203 is obtained after 3KVA pressure regulators B4, three-phase electricity 6201,6202 and 6203 passes through fastp-acting fuse
Three-phase electricity 7201,7202 and 7203 is obtained after FU6, three-phase electricity 7201,7202 and 7203 exports direct current after three phase inverter bridge
Electricity, the absorption filter circuit constituted finally by R9/R10 and C10/C11 is realized to 300KVA traction frequency convertor major loop
Power supply is supplied, and completes the discharge range test of main loop circuit；It can be realized simultaneously by voltmeter V9, V10 and V11 to power supply
The real-time monitored of loop voltage.Entered traction frequency convertor main loop circuit direct current to become after alternating current, master control separation friendship can be completed
Output waveform test is flowed, flowing out alternating current by traction frequency convertor main loop circuit can be with inflow motor M.
When control loop power supply circuit selection branch 0104,0105,0106 turns in Fig. 1, exchanged respectively in corresponding Fig. 3
Main contacts 4Ca, 5Ca of contactor are connected with 6Ca, and current direction is identical when being connected with the main contacts 3Ca of above-mentioned A.C. contactor,
It can supply, will not be repeated here finally by the power supply to 300KVA Frequency Converter Control loop is realized.
By above-described embodiment, the utility model controls circuit realiration according to the master of traction frequency convertor by test device
The control loop test required voltage of loop-around test and traction frequency convertor, and different supply voltages are provided, so as to solve
In the traction frequency convertor full voltage test process of existing mining electric locomotive, when governor circuit can not be separated, because supply is led
The major loop test for drawing frequency converter is identical with the control loop test required voltage of traction frequency convertor, and the traction frequency conversion caused
The problem of power device is damaged in the major loop or control loop of device.
Finally it should be noted that：Various embodiments above is only limited to illustrate the technical solution of the utility model, rather than to it
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, or to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (5)
1. a kind of traction frequency convertor test device, it is characterised in that including：
Test device controls circuit, and the test device control circuit connects with main circuit power supply circuit and control loop power supply circuit
Connect, the corresponding main loop circuit of M kind traction frequency convertors is included in the main circuit power supply circuit, the test device controls circuit
For controlling to the inside of the frequency converter inner control loop power supply circuit and the frequency converter in main circuit power supply circuit
The corresponding main loop circuit of any traction frequency convertor is powered, and the M is the integer more than or equal to 1.
2. traction frequency convertor test device according to claim 1, it is characterised in that the test device controls circuit bag
Control loop power supply circuit selection branch and main circuit power supply circuit selection branch are included, wherein, the main circuit power supply circuit choosing
Select branch and include M different main loop circuit selection branches, the control loop power supply circuit selection branch is used to control institute
State control loop power supply circuit to power, the M different main loop circuit selection branches are used for correspondence and control the M kinds traction
The corresponding main loop circuit of frequency converter is powered.
3. traction frequency convertor test device according to claim 2, it is characterised in that the control loop power supply circuit choosing
Branch is selected to include：
First jerk rotary switch, the first button switch, the normally opened auxiliary contact and the first ac contactor of the first A.C. contactor
The magnet coil of device, the first jerk rotary switch and first button and the magnet coil of first A.C. contactor
Series connection, the normally opened auxiliary contact of first A.C. contactor are in parallel with first button switch；
The normally opened auxiliary contact of first A.C. contactor are also connected with indicator lamp；
The first jerk rotary switch and first button switch are used to control the control loop power supply circuit to power, institute
When stating the closing of the first jerk rotary switch and first button switch startup, the control loop power supply circuit is powered, described
When first jerk rotary switch is opened, the control loop power supply circuit power-off.
4. traction frequency convertor test device according to claim 3, it is characterised in that the main circuit power supply circuit selection
Each main loop circuit selection branch of branch includes：
N jerks rotary switch, N button switches, normally opened auxiliary contact, the electricity of N A.C. contactors of N A.C. contactors
The normally closed auxiliary contact of magnetic coil, the normally opened auxiliary contact of the first A.C. contactor and M-1 A.C. contactor, the M-1
The n-th A.C. contactor, the N jerks rotary switch, the N button switches, institute are not included in A.C. contactor
State the normally opened auxiliary contact, the magnet coil of the N A.C. contactors and the M-1 ac contactor of the first A.C. contactor
The normally closed auxiliary contact series connection of device, the normally opened auxiliary contact of the N A.C. contactors are in parallel with the N button switches, its
In, the N is the integer more than or equal to 2.
5. traction frequency convertor test device according to claim 4, it is characterised in that wrapped in the main circuit power supply circuit
Containing voltage regulator, the adjuster is adjusted by the control to regulating resistor resistance, the different voltage of regulation output, the voltage
Save the device main loop circuit different from M to connect, the master comprising corresponding A.C. contactor touches in each main loop circuit
Point, the M different main loop circuit selection branches are used for correspondence and control the exchange of the M different main loop circuit to connect
The closing and disconnection of the main contacts of tentaculum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621243293.7U CN206400018U (en) | 2016-11-21 | 2016-11-21 | Traction frequency convertor test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621243293.7U CN206400018U (en) | 2016-11-21 | 2016-11-21 | Traction frequency convertor test device |
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| Publication Number | Publication Date |
|---|---|
| CN206400018U true CN206400018U (en) | 2017-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621243293.7U Active CN206400018U (en) | 2016-11-21 | 2016-11-21 | Traction frequency convertor test device |
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| CN (1) | CN206400018U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443280A (en) * | 2016-11-21 | 2017-02-22 | 中车兰州机车有限公司 | Traction frequency convertor testing device |
| CN108466935A (en) * | 2018-02-11 | 2018-08-31 | 江苏省特种设备安全监督检验研究院 | Urgent power-off switch power down function test circuit and its method of inspection |
-
2016
- 2016-11-21 CN CN201621243293.7U patent/CN206400018U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443280A (en) * | 2016-11-21 | 2017-02-22 | 中车兰州机车有限公司 | Traction frequency convertor testing device |
| CN106443280B (en) * | 2016-11-21 | 2023-08-08 | 中车兰州机车有限公司 | Traction frequency converter testing device |
| CN108466935A (en) * | 2018-02-11 | 2018-08-31 | 江苏省特种设备安全监督检验研究院 | Urgent power-off switch power down function test circuit and its method of inspection |
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