CN106410646A - Fault rapid determining and processing operation method of AC-DC-AC high-voltage frequency converter - Google Patents
Fault rapid determining and processing operation method of AC-DC-AC high-voltage frequency converter Download PDFInfo
- Publication number
- CN106410646A CN106410646A CN201610975594.7A CN201610975594A CN106410646A CN 106410646 A CN106410646 A CN 106410646A CN 201610975594 A CN201610975594 A CN 201610975594A CN 106410646 A CN106410646 A CN 106410646A
- Authority
- CN
- China
- Prior art keywords
- turning
- switch
- turn
- motor
- check
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000012545 processing Methods 0.000 title abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
- 230000008569 process Effects 0.000 claims abstract description 19
- 230000005284 excitation Effects 0.000 claims abstract description 18
- 238000012423 maintenance Methods 0.000 claims abstract description 17
- 238000001816 cooling Methods 0.000 claims description 39
- 230000008859 change Effects 0.000 claims description 38
- 230000007246 mechanism Effects 0.000 claims description 24
- 238000012360 testing method Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000013459 approach Methods 0.000 claims description 9
- 238000007689 inspection Methods 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 9
- 239000003054 catalyst Substances 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 3
- 239000012208 gear oil Substances 0.000 claims description 3
- 235000003642 hunger Nutrition 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 230000008439 repair process Effects 0.000 claims description 3
- 230000037351 starvation Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000003672 processing method Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
Abstract
The invention discloses a fault rapid determining and processing operation method of an AC-DC-AC high-voltage frequency converter. The method comprises the steps of maintenance of auxiliary equipment, maintenance of an excitation loop of a synchronization motor, maintenance of a high-voltage frequency conversion cabinet, maintenance of an inlet wire switch of a high-voltage frequency converter, air inlet temperature standard-exceeding alarm processing and replacement of a power unit. According to the fault determining and processing method of the high-voltage frequency converter, provided by the invention, a fault of the frequency converter is determined according to different features of a starting process and processing operation is performed according to the type of the fault, such that the accident processing time is shortened, and good economic benefits are created.
Description
Technical field
The present invention relates to a kind of fault of high voltage converter is quick and judging and process operational approach, more particularly, to a kind of friendship is straight
Hand over the quick judgement of fault of high voltage converter and process operational approach, belong to the fault diagnosis technology field of high voltage converter.
Background technology
1,2,3,4, No. 5 high voltage converter is the nucleus equipment of mair motor on factory's steel rolling line, their operation quality,
Directly affect the yield of production line, because high voltage converter is high voltage, high current, the equipment of high-intensity magnetic field, always runs dimension
Difficult point in shield, each fault needs to stop production to wait and causes very big production loss, for this reason, according to oneself maintenance and life
The accident occurring in product, is summarized, thus allowing everybody accident can be had one compare clearly thinking, according to high voltage variable
The feature of the fault of frequency device, according to different time, different feedbacks, summarize the judgement of fault and process operational approach, thus pole
The big process time that improve accident, improves equipment utilization rule it is ensured that producing.
Content of the invention
The technical problem to be solved in the present invention is to provide a kind of quick judgement of fault handing over orthogonal high voltage converter and process
Operational approach.
For solving above-mentioned technical problem, the technical solution used in the present invention is：
A kind of quick judgement of fault handing over orthogonal high voltage converter and process operational approach, comprise the following steps：
Step 1：Auxiliary equipment（7）Maintenance：It is made up of step by step following：
Step 1-1：Start the auxiliary equipment handing over orthogonal high voltage converter（7）, judge to start auxiliary equipment（7）Whether can normal work
Make, if it is, turning to step 2；Otherwise, turn to step 1-2；
Step 1-2：Check whether water cooling unit works, if it is, turning to step 1-4；Otherwise, turn to step 1-3；
Step 1-3：Process water cooling unit fault；Turn to step 1-2；
Step 1-4：Check whether the cooling blower that high-voltage motor (6) two is surveyed works, if it is, turning to step 1-8；Otherwise, turn
To step 1-5；
Step 1-5：Check whether the on and off switch of cooling blower trips, and whether catalyst control loop is normal, if it is, turning
To step 1-6, otherwise turn to step 1-8；
Step 1-6：Detect cooling blower motor with low pressure megger, if insulation is less than 0.5 megaohm, change the cooling blower damaging
Motor；If cooling blower insulation is good, detect cooling blower inlet wire insulating resistance of cable with low pressure megger, check inlet wire electricity
Whether cable insulation against ground is less than 0.5 megaohm, if turning to step 1-7；Otherwise turn to step 1-8；
Step 1-7：Change the inlet wire cable of cooling fan；
Step 1-8：Check whether the cooling fan in frequency conversion tank works, whether air quantity is normal, if turning to step 1, otherwise
Turn to step 1-7；
Step 1-9：Change cooling fan in frequency conversion tank, or check in frequency conversion tank, whether air quantity detecting element damages and air quantity inspection
Whether survey time road opens a way, and changes PT100 air volume test element in time, recovers measuring loop；
Step 2：The energized circuit maintenance of synchronous motor, including step in detail below：
Step 2-1：Check whether the energized circuit of synchronous motor works, and whether field switch TCMLC closes；If it is, turning
To step 3, otherwise, turn to step 2-2；
Step 2-2：Check excitation service entrance switch on low-voltage distribution cabinet（1）Whether close, if it is, turning to step 2-4, otherwise,
Turn to step 2-3；
Step 2-3：Close excitation service entrance switch on low-voltage distribution cabinet（1）；Turn to step 2-1；
Step 2-4：Checking switch whether action in excitation cubicle, if it is, turning to step 2-6, otherwise, turning to step 2-5；
Step 2-5：Inspection switch and the motor-operating mechanism of switch, whether the coil of motor-operating mechanism is short-circuit, open circuit, machine
Whether structure connection piece is threaded off or is deformed, and the coil of replacement operation mechanism, corrects and recover the mechanism of motor-operating mechanism
In flakes, if Switch main body damages, be changed；
Step 2-6：Check excitation rectifier device（2）Whether working, if turning to step 2-8, otherwise turning to step 2-7；
Step 2-7：Maintenance excitation rectifier device, controls whether power supply has electricity, and whether communication board work is normal, and whether card is empty
Connect or damage, whether cooling fan works, whether have short circuit phenomenon, whether internal insurance, because Damage by Short Circuit, is changed corresponding
Element；
Step 2-8：Checking motor brush whether fault, if turning to step 2-9, otherwise going to step 2-9；
Step 2-9：Change brush, before replacing, contact surface polish corresponding radian, once change less than sum three/
One；
Step 2-10：Check whether motor sliding ring surface is good, if oxide-film is destroyed, grinding process to be carried out, brush brush
Whether frame loosens and is retightened, and whether slip ring wiring loosens and fastened；
Step 3：High-pressure frequency-conversion cabinet overhauls：Including step in detail below：
Step 3-1：Check whether high-pressure frequency-conversion cabinet enters line precharge：After 30 second charging interval, whether observe DC bus-bar voltage
Reaching 4800V, if it is, turning to step 4, otherwise turning to step 3-2；
Step 3-2：Operation high voltage converter stops, and high pressure inlet wire handcart is withdrawn into testing position, and wait DC bus-bar voltage is
After 36V, change pre-charge resistance, change preliminary filling insurance, eliminate All Alerts；
Step 3-3：High pressure inlet wire handcart is advanced to run location, turns to step 1；
Step 4：High voltage converter service entrance switch overhauls：Including step in detail below：
Step 4-1：Check high-voltage wire inlet switch（3）Whether close a floodgate, if it is, turning to step 5, if not otherwise turning to step
4-2；
Step 4-2：Operation high voltage converter stops, and high pressure inlet wire handcart is withdrawn into testing position, checks that high-voltage handcart closes a floodgate back
Whether road works, if it is, turning to step 4-4, otherwise turns to step 4-3；
Step 4-3：Change the fault element in high-voltage handcart closing coil loop；
Step 4-4：Checking whether tank circuit works, if it is, turning to step 4-6, otherwise turning to step 4-5；
Step 4-5：Change the fault element in tank circuit；
Step 4-6：Check whether high-voltage switch gear divide-shut brake auxiliary contact feedback is normal, if it is, turning to step 4-8, otherwise turns
To step 4-7；
Step 4-7：Change high-voltage switch gear divide-shut brake auxiliary contact；
Step 4-8：Checking whether the motor-operating mechanism of high-voltage switch gear is good, if it is, turning to step 4-10, otherwise turning to step
Rapid 4-9；
Step 4-9：Operating mechanism, inspection operation mechanism powered part and the mechanical part of examination and repair for high-pressure switch, powered part line
Whether circle opens a way or short circuit, armature whether jam, and whether pin comes off mechanical part, bearing damage, and connecting rod deforms, gear
Oil starvation, changes corresponding damage part；
Step 4-10：High pressure inlet wire handcart is advanced to run location, turns to step 1；
Step 5：Disconnecting switch under motor（5）Maintenance：Including step in detail below：
Step 5-1：Check disconnecting switch under motor（5）Handcart whether normally close a floodgate, if it is, turn to step 5-3, otherwise,
Turn to step 5-2；
Step 5-2:Lower disconnecting switch（5）Handcart exit and change, change after lower disconnecting switch（5）Deliver to operation
Position；
Step 5-3：The lower disconnecting switch of operation（5）Close a floodgate；
Step 6：The exceeded alert process of intake air temperature：Including step in detail below：
Step 6-1：Judge whether that display exceeded warning of intake air temperature is shut down, if it is, turning to step 6-2；Otherwise, turn to
Step 6-3；
Step 6-2：Force F01K13 the or F01K23 relay inside pressing main transmission assist control cabinet, the time divides for 1-2
Clock, motor cooling fan catalyst, so that motor radiating fan is worked, report to the police and eliminate rear steering step 1；
Step 6-3：Confirm that high voltage converter stops, operation high pressure inlet wire handcart is withdrawn into testing position, waits 15 minutes direct currents
Busbar voltage be less than 36V after, check frequency conversion tank internal power unit module whether report to the police, judge whether high-voltage power unit damages
Bad, if it is, turning to step 6-4, otherwise turn to step 7；
Step 6-4：Change IGCT unit, close IGCT water inlet and flowing water Valve, open joint, put well below waterpipe jointing and connect
Basin, prevents from metalling run out, and takes apart and controls power outage in the dividing plate in the middle of cabinet door, IGCT power unit cabinet, extracts touching on IGCT
Luminous grid 4, dismantle triggering power supply terminal 8,4 foundation bolts of constant power unit, and the fixation that busbar connects
2, bolt, the connecting bolt of 3 busbars 8,4, the bolt of output, special both sides 2 Slide tool is respectively installed to
Above IGCT, notice that each screw gently hangs up.Two exclusive guideways are separately inserted inside Slide tool recited above, two
Side respectively fills one, is then fixed on cabinet by full dog point socket set above, is just now fixed the bolt of guide rail, before and after both sides
Synchronization is tightened, and at this moment can see that IGCT module is slight from firm banking and lift 2-3MM, IGCT power cell is pulled outwardly
Go out, be put on special lift truck, lifting lift truck, so that IGCT power cell is not stressed, pull down fixing IGCT power cell
Screw on slideway, unloads IGCT, turns to step 1；
Step 7：Terminate.
Using having technical effect that acquired by technique scheme：
The invention provides a kind of breakdown judge of high voltage converter and processing method, according to the different characteristics judgement of start-up course
The fault of converter, the type according to fault carries out processing operation, shortens the accident treatment time, creates good economic effect
Benefit.
Brief description
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is the flow chart of the present invention；
Fig. 2 is the circuit theory diagrams handing over orthogonal high voltage converter；
Wherein：1- excitation service entrance switch, 2- excitation rectifier device, 3- high-voltage wire inlet switch, 4- high-pressure frequency-conversion cabinet, keep apart under 5-
Close, 6- high-voltage motor, 7- auxiliary equipment.
Specific embodiment
Embodiment 1：
A kind of quick judgement of fault handing over orthogonal high voltage converter and process operational approach, comprise the following steps：
Step 1：Auxiliary equipment（7）Maintenance：It is made up of step by step following：
Step 1-1：Start the auxiliary equipment handing over orthogonal high voltage converter（7）, judge to start auxiliary equipment（7）Whether can normal work
Make, if it is, turning to step 2；Otherwise, turn to step 1-2；
Step 1-2：Check whether water cooling unit works, if it is, turning to step 1-4；Otherwise, turn to step 1-3；
Step 1-3：Process water cooling unit fault；Turn to step 1-2；
Step 1-4：Check whether the cooling blower that high-voltage motor (6) two is surveyed works, if it is, turning to step 1-8；Otherwise, turn
To step 1-5；
Step 1-5：Check whether the on and off switch of cooling blower trips, and whether catalyst control loop is normal, if it is, turning
To step 1-6, otherwise turn to step 1-8；
Step 1-6：Detect cooling blower motor with low pressure megger, if insulation is less than 0.5 megaohm, change the cooling blower damaging
Motor；If cooling blower insulation is good, detect cooling blower inlet wire insulating resistance of cable with low pressure megger, check inlet wire electricity
Whether cable insulation against ground is less than 0.5 megaohm, if turning to step 1-7；Otherwise turn to step 1-8；
Step 1-7：Change the inlet wire cable of cooling fan；
Step 1-8：Check whether the cooling fan in frequency conversion tank works, whether air quantity is normal, if turning to step 1, otherwise
Turn to step 1-7；
Step 1-9：Change cooling fan in frequency conversion tank, or check in frequency conversion tank, whether air quantity detecting element damages and air quantity inspection
Whether survey time road opens a way, and changes PT100 air volume test element in time, recovers measuring loop；
Step 2：The energized circuit maintenance of synchronous motor, including step in detail below：
Step 2-1：Check whether the energized circuit of synchronous motor works, and whether field switch TCMLC closes；If it is, turning
To step 3, otherwise, turn to step 2-2；
Step 2-2：Check excitation service entrance switch on low-voltage distribution cabinet（1）Whether close, if it is, turning to step 2-4, otherwise,
Turn to step 2-3；
Step 2-3：Close excitation service entrance switch on low-voltage distribution cabinet（1）；Turn to step 2-1；
Step 2-4：Checking switch whether action in excitation cubicle, if it is, turning to step 2-6, otherwise, turning to step 2-5；
Step 2-5：Inspection switch and the motor-operating mechanism of switch, whether the coil of motor-operating mechanism is short-circuit, open circuit, machine
Whether structure connection piece is threaded off or is deformed, and the coil of replacement operation mechanism, corrects and recover the mechanism of motor-operating mechanism
In flakes, if Switch main body damages, be changed；
Step 2-6：Check excitation rectifier device（2）Whether working, if turning to step 2-8, otherwise turning to step 2-7；
Step 2-7：Maintenance excitation rectifier device, controls whether power supply has electricity, and whether communication board work is normal, and whether card is empty
Connect or damage, whether cooling fan works, whether have short circuit phenomenon, whether internal insurance, because Damage by Short Circuit, is changed corresponding
Element；
Step 2-8：Checking motor brush whether fault, if turning to step 2-9, otherwise going to step 2-9；
Step 2-9：Change brush, before replacing, contact surface polish corresponding radian, once change less than sum three/
One；
Step 2-10：Check whether motor sliding ring surface is good, if oxide-film is destroyed, grinding process to be carried out, brush brush
Whether frame loosens and is retightened, and whether slip ring wiring loosens and fastened；
Step 3：High-pressure frequency-conversion cabinet overhauls：Including step in detail below：
Step 3-1：Check whether high-pressure frequency-conversion cabinet enters line precharge：After 30 second charging interval, whether observe DC bus-bar voltage
Reaching 4800V, if it is, turning to step 4, otherwise turning to step 3-2；
Step 3-2：Operation high voltage converter stops, and high pressure inlet wire handcart is withdrawn into testing position, and wait DC bus-bar voltage is
After 36V, change pre-charge resistance, change preliminary filling insurance, eliminate All Alerts；
Step 3-3：High pressure inlet wire handcart is advanced to run location, turns to step 1；
Step 4：High voltage converter service entrance switch overhauls：Including step in detail below：
Step 4-1：Check high-voltage wire inlet switch（3）Whether close a floodgate, if it is, turning to step 5, if not otherwise turning to step
4-2；
Step 4-2：Operation high voltage converter stops, and high pressure inlet wire handcart is withdrawn into testing position, checks that high-voltage handcart closes a floodgate back
Whether road works, if it is, turning to step 4-4, otherwise turns to step 4-3；
Step 4-3：Change the fault element in high-voltage handcart closing coil；
Step 4-4：Checking whether tank circuit works, if it is, turning to step 4-6, otherwise turning to step 4-5；
Step 4-5：Change the fault element in tank circuit；
Step 4-6：Check whether high-voltage switch gear divide-shut brake auxiliary contact feedback is normal, if it is, turning to step 4-8, otherwise turns
To step 4-7；
Step 4-7：Change high-voltage switch gear divide-shut brake auxiliary contact；
Step 4-8：Checking whether the motor-operating mechanism of high-voltage switch gear is good, if it is, turning to step 4-10, otherwise turning to step
Rapid 4-9；
Step 4-9：Operating mechanism, inspection operation mechanism powered part and the mechanical part of examination and repair for high-pressure switch, powered part line
Whether circle opens a way or short circuit, armature whether jam, and whether pin comes off mechanical part, bearing damage, and connecting rod deforms, gear
Oil starvation, changes corresponding damage part；
Step 4-10：High pressure inlet wire handcart is advanced to run location, turns to step 1；
Step 5：Disconnecting switch under motor（5）Maintenance：Including step in detail below：
Step 5-1：Check disconnecting switch under motor（5）Handcart whether normally close a floodgate, if it is, turn to step 5-3, otherwise,
Turn to step 5-2；
Step 5-2:Lower disconnecting switch（5）Handcart exit and change, change after lower disconnecting switch（5）Deliver to operation
Position；
Step 5-3：The lower disconnecting switch of operation（5）Close a floodgate；
Step 6：The exceeded alert process of intake air temperature：Including step in detail below：
Step 6-1：Judge whether that display exceeded warning of intake air temperature is shut down, if it is, turning to step 6-2；Otherwise, turn to
Step 6-3；
Step 6-2：Force F01K13 the or F01K23 relay inside pressing main transmission assist control cabinet, the time divides for 1-2
Clock, motor cooling fan catalyst, so that motor radiating fan is worked, report to the police and eliminate rear steering step 1；
Step 6-3：Confirm that high voltage converter stops, operation high pressure inlet wire handcart is withdrawn into testing position, waits 15 minutes direct currents
Busbar voltage be less than 36V after, check frequency conversion tank internal power unit module whether report to the police, judge whether high-voltage power unit damages
Bad, if it is, turning to step 6-4, otherwise turn to step 7；
Step 6-4：Change IGCT unit, close IGCT water inlet and flowing water Valve, open joint, put well below waterpipe jointing and connect
Basin, prevents from metalling run out, and takes apart and controls power outage in the dividing plate in the middle of cabinet door, IGCT power unit cabinet, extracts touching on IGCT
Luminous grid 4, dismantle triggering power supply terminal 8,4 foundation bolts of constant power unit, and the fixation that busbar connects
2, bolt, the connecting bolt of 3 busbars 8,4, the bolt of output, special both sides 2 Slide tool is respectively installed to
Above IGCT, notice that each screw gently hangs up.Two exclusive guideways are separately inserted inside Slide tool recited above, two
Side respectively fills one, is then fixed on cabinet by full dog point socket set above, is just now fixed the bolt of guide rail, before and after both sides
Synchronization is tightened, and at this moment can see that IGCT module is slight from firm banking and lift 2-3MM, IGCT power cell is pulled outwardly
Go out, be put on special lift truck, lifting lift truck, so that IGCT power cell is not stressed, pull down fixing IGCT power cell
Screw on slideway, unloads IGCT, turns to step 1；
Step 7：Terminate.
According to this operational approach, the calculating of 12 hours off-times can be reduced annual, that is, 0.5 day, minimizing caused
Loss：4000 tons of * 0.5=2000 tons of daily yield, 200 yuan of ton steel profit.Loss of income reduces 400,000 yuan.
Embodiment described above is only that the preferred embodiment of the present invention is described, the not structure to the present invention
Think and scope is defined.On the premise of without departing from design concept of the present invention, the technology to the present invention for this area ordinary person
Various modifications and improvement that scheme is made, all should drop into protection scope of the present invention.
Claims (1)
1. a kind of fault handing over orthogonal high voltage converter quick judge and process operational approach it is characterised in that：Walk including following
Suddenly：
Step 1：Auxiliary equipment（7）Maintenance：It is made up of step by step following：
Step 1-1：Start the auxiliary equipment handing over orthogonal high voltage converter（7）, judge to start auxiliary equipment（7）Whether can normal work
Make, if it is, turning to step 2；Otherwise, turn to step 1-2；
Step 1-2：Check whether water cooling unit works, if it is, turning to step 1-4；Otherwise, turn to step 1-3；
Step 1-3：Process water cooling unit fault；Turn to step 1-2；
Step 1-4：Check whether the cooling blower that high-voltage motor (6) two is surveyed works, if it is, turning to step 1-8；Otherwise, turn
To step 1-5；
Step 1-5：Check whether the on and off switch of cooling blower trips, and whether catalyst control loop is normal, if it is, turning
To step 1-6, otherwise turn to step 1-8；
Step 1-6：Detect cooling blower motor with low pressure megger, if insulation is less than 0.5 megaohm, change the cooling blower damaging
Motor；If cooling blower insulation is good, detect cooling blower inlet wire insulating resistance of cable with low pressure megger, check inlet wire electricity
Whether cable insulation against ground is less than 0.5 megaohm, if turning to step 1-7；Otherwise turn to step 1-8；
Step 1-7：Change the inlet wire cable of cooling fan；
Step 1-8：Check whether the cooling fan in frequency conversion tank works, whether air quantity is normal, if turning to step 1, otherwise
Turn to step 1-7；
Step 1-9：Change cooling fan in frequency conversion tank, or check in frequency conversion tank, whether air quantity detecting element damages and air quantity inspection
Whether survey time road opens a way, and changes PT100 air volume test element in time, recovers measuring loop；
Step 2：The energized circuit maintenance of synchronous motor, including step in detail below：
Step 2-1：Check whether the energized circuit of synchronous motor works, and whether field switch TCMLC closes；If it is, turning
To step 3, otherwise, turn to step 2-2；
Step 2-2：Check excitation service entrance switch on low-voltage distribution cabinet（1）Whether close, if it is, turning to step 2-4, otherwise,
Turn to step 2-3；
Step 2-3：Close excitation service entrance switch on low-voltage distribution cabinet（1）；Turn to step 2-1；
Step 2-4：Checking switch whether action in excitation cubicle, if it is, turning to step 2-6, otherwise, turning to step 2-5；
Step 2-5：Inspection switch and the motor-operating mechanism of switch, whether the coil of motor-operating mechanism is short-circuit, open circuit, machine
Whether structure connection piece is threaded off or is deformed, and the coil of replacement operation mechanism, corrects and recover the mechanism of motor-operating mechanism
In flakes, if Switch main body damages, be changed；
Step 2-6：Check excitation rectifier device（2）Whether working, if turning to step 2-8, otherwise turning to step 2-7；
Step 2-7：Maintenance excitation rectifier device, controls whether power supply has electricity, and whether communication board work is normal, and whether card is empty
Connect or damage, whether cooling fan works, whether have short circuit phenomenon, whether internal insurance, because Damage by Short Circuit, is changed corresponding
Element；
Step 2-8：Checking motor brush whether fault, if turning to step 2-9, otherwise going to step 2-9；
Step 2-9：Change brush, before replacing, contact surface polish corresponding radian, once change less than sum three/
One；
Step 2-10：Check whether motor sliding ring surface is good, if oxide-film is destroyed, grinding process to be carried out, brush brush
Whether frame loosens and is retightened, and whether slip ring wiring loosens and fastened；
Step 3：High-pressure frequency-conversion cabinet overhauls：Including step in detail below：
Step 3-1：Check whether high-pressure frequency-conversion cabinet enters line precharge：After 30 second charging interval, whether observe DC bus-bar voltage
Reaching 4800V, if it is, turning to step 4, otherwise turning to step 3-2；
Step 3-2：Operation high voltage converter stops, and high pressure inlet wire handcart is withdrawn into testing position, and wait DC bus-bar voltage is
After 36V, change pre-charge resistance, change preliminary filling insurance, eliminate All Alerts；
Step 3-3：High pressure inlet wire handcart is advanced to run location, turns to step 1；
Step 4：High voltage converter service entrance switch overhauls：Including step in detail below：
Step 4-1：Check high-voltage wire inlet switch（3）Whether close a floodgate, if it is, turning to step 5, if not otherwise turning to step
4-2；
Step 4-2：Operation high voltage converter stops, and high pressure inlet wire handcart is withdrawn into testing position, checks that high-voltage handcart closes a floodgate back
Whether road works, if it is, turning to step 4-4, otherwise turns to step 4-3；
Step 4-3：Change the fault element in high-voltage handcart closing circuit；
Step 4-4：Checking whether tank circuit works, if it is, turning to step 4-6, otherwise turning to step 4-5；
Step 4-5：Fault element in energy loop；
Step 4-6：Check whether high-voltage switch gear divide-shut brake auxiliary contact feedback is normal, if it is, turning to step 4-8, otherwise turns
To step 4-7；
Step 4-7：Change high-voltage switch gear divide-shut brake auxiliary contact；
Step 4-8：Checking whether the motor-operating mechanism of high-voltage switch gear is good, if it is, turning to step 4-10, otherwise turning to step
Rapid 4-9；
Step 4-9：Operating mechanism, inspection operation mechanism powered part and the mechanical part of examination and repair for high-pressure switch, powered part line
Whether circle opens a way or short circuit, armature whether jam, and whether pin comes off mechanical part, bearing damage, and connecting rod deforms, gear
Oil starvation, changes corresponding damage part；
Step 4-10：High pressure inlet wire handcart is advanced to run location, turns to step 1；
Step 5：Disconnecting switch under motor（5）Maintenance：Including step in detail below：
Step 5-1：Check disconnecting switch under motor（5）Handcart whether normally close a floodgate, if it is, turn to step 5-3, otherwise,
Turn to step 5-2；
Step 5-2:Lower disconnecting switch（5）Handcart exit and change, change after lower disconnecting switch（5）Deliver to operation
Position；
Step 5-3：The lower disconnecting switch of operation（5）Close a floodgate；
Step 6：The exceeded alert process of intake air temperature：Including step in detail below：
Step 6-1：Judge whether that display exceeded warning of intake air temperature is shut down, if it is, turning to step 6-2；Otherwise, turn to
Step 6-3；
Step 6-2：Force F01K13 the or F01K23 relay inside pressing main transmission assist control cabinet, the time divides for 1-2
Clock, motor cooling fan catalyst, so that motor radiating fan is worked, report to the police and eliminate rear steering step 1；
Step 6-3：Confirm that high voltage converter stops, operation high pressure inlet wire handcart is withdrawn into testing position, waits 15 minutes direct currents
Busbar voltage be less than 36V after, check frequency conversion tank internal power unit module whether report to the police, judge whether high-voltage power unit damages
Bad, if it is, turning to step 6-4, otherwise turn to step 7；
Step 6-4：Change IGCT unit, close IGCT water inlet and flowing water Valve, open joint, put well below waterpipe jointing and connect
Basin, prevents from metalling run out, and takes apart and controls power outage in the dividing plate in the middle of cabinet door, IGCT power unit cabinet, extracts touching on IGCT
Luminous grid 4, dismantle triggering power supply terminal 8,4 foundation bolts of constant power unit, and the fixation that busbar connects
2, bolt, the connecting bolt of 3 busbars 8,4, the bolt of output, special both sides 2 Slide tool is respectively installed to
Above IGCT, notice that each screw gently hangs up, two exclusive guideways are separately inserted inside Slide tool recited above, two
Side respectively fills one, is then fixed on cabinet by full dog point socket set above, is just now fixed the bolt of guide rail, before and after both sides
Synchronization is tightened, and at this moment can see that IGCT module is slight from firm banking and lift 2-3MM, IGCT power cell is pulled outwardly
Go out, be put on special lift truck, lifting lift truck, so that IGCT power cell is not stressed, pull down fixing IGCT power cell
Screw on slideway, unloads IGCT, turns to step 1；
Step 7：Terminate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610975594.7A CN106410646B (en) | 2016-11-07 | 2016-11-07 | A kind of failure for handing over orthogonal high voltage converter quickly judges and processing operating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610975594.7A CN106410646B (en) | 2016-11-07 | 2016-11-07 | A kind of failure for handing over orthogonal high voltage converter quickly judges and processing operating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106410646A true CN106410646A (en) | 2017-02-15 |
| CN106410646B CN106410646B (en) | 2018-02-06 |
Family
ID=58015232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610975594.7A Expired - Fee Related CN106410646B (en) | 2016-11-07 | 2016-11-07 | A kind of failure for handing over orthogonal high voltage converter quickly judges and processing operating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106410646B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107942153A (en) * | 2017-03-31 | 2018-04-20 | 大唐三门峡发电有限责任公司 | The lookup method of Li Dehuafu frequency converter failures |
| CN110567740A (en) * | 2019-07-31 | 2019-12-13 | 邯郸钢铁集团有限责任公司 | operation method for searching and rapidly processing high-voltage variable-frequency starting fault according to time sequence |
| CN113701809A (en) * | 2021-08-20 | 2021-11-26 | 株洲华梁电气有限公司 | IGCT crimping test device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109541337B (en) * | 2018-10-16 | 2021-02-19 | 苏州汇川技术有限公司 | Frequency converter fault detection method, system, equipment and computer readable storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101051581A (en) * | 2007-02-15 | 2007-10-10 | 国电南瑞科技股份有限公司 | Interlocking reverse overflow relay protective plan |
| US7948203B2 (en) * | 2007-06-29 | 2011-05-24 | Andreas Siemes | Device for the control of a smooth starting or ending of a three phase current motor, so-called soft starter |
| CN103066575A (en) * | 2012-12-24 | 2013-04-24 | 上海电力学院 | Control method of rapidly finding fault |
| CN103777108A (en) * | 2013-10-24 | 2014-05-07 | 黄政 | Method for quickly searching grounding fault point of electrical equipment |
| CN104821247A (en) * | 2015-04-22 | 2015-08-05 | 淮北朔里矿业有限责任公司 | Method for debugging and calibrating vacuum contactor in explosion-proof switch |
-
2016
- 2016-11-07 CN CN201610975594.7A patent/CN106410646B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101051581A (en) * | 2007-02-15 | 2007-10-10 | 国电南瑞科技股份有限公司 | Interlocking reverse overflow relay protective plan |
| US7948203B2 (en) * | 2007-06-29 | 2011-05-24 | Andreas Siemes | Device for the control of a smooth starting or ending of a three phase current motor, so-called soft starter |
| CN103066575A (en) * | 2012-12-24 | 2013-04-24 | 上海电力学院 | Control method of rapidly finding fault |
| CN103777108A (en) * | 2013-10-24 | 2014-05-07 | 黄政 | Method for quickly searching grounding fault point of electrical equipment |
| CN104821247A (en) * | 2015-04-22 | 2015-08-05 | 淮北朔里矿业有限责任公司 | Method for debugging and calibrating vacuum contactor in explosion-proof switch |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107942153A (en) * | 2017-03-31 | 2018-04-20 | 大唐三门峡发电有限责任公司 | The lookup method of Li Dehuafu frequency converter failures |
| CN110567740A (en) * | 2019-07-31 | 2019-12-13 | 邯郸钢铁集团有限责任公司 | operation method for searching and rapidly processing high-voltage variable-frequency starting fault according to time sequence |
| CN110567740B (en) * | 2019-07-31 | 2021-02-26 | 邯郸钢铁集团有限责任公司 | Operation method for searching and rapidly processing high-voltage variable-frequency starting fault according to time sequence |
| CN113701809A (en) * | 2021-08-20 | 2021-11-26 | 株洲华梁电气有限公司 | IGCT crimping test device |
| CN113701809B (en) * | 2021-08-20 | 2024-04-09 | 株洲华梁电气有限公司 | IGCT crimping test device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106410646B (en) | 2018-02-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106410646B (en) | A kind of failure for handing over orthogonal high voltage converter quickly judges and processing operating method | |
| CN105717404A (en) | Method and device for detecting insulation fault of power battery system | |
| CN102209648B (en) | Device and method for limiting the rail potential in a DC railway | |
| CN106992496A (en) | Earth leakage protecting method for Feeding System of Urban Rail Transit | |
| CN106274620A (en) | A kind of scalable, upset and the compartment of horizontal sliding | |
| CN105425066A (en) | Special capacitor ripple current detection main circuit for flexible direct-current power transmission | |
| CN210222122U (en) | Ground wire device for circuit insulation test | |
| CN205453283U (en) | Incessant UPS power supply unit | |
| CN109586192A (en) | A kind of failure of high-voltage large current high-intensity magnetic field frequency converter quickly judges and processing method | |
| KR100984115B1 (en) | The syn-controller of a pannel of in a generator in case of emergency | |
| CN206281932U (en) | A kind of transforming plant DC ground detection device | |
| CN206117305U (en) | A power supply loop for communication power supply | |
| CN106340954A (en) | Method for identifying line breaking of power supply line and switching to standby power supply | |
| CN109245291A (en) | The maintenance safety measure method for arranging of the double sectional power supply systems of substation's double-bus | |
| CN104638617A (en) | Protection device for output end of generator car DC600V rectifier cabinet | |
| CN111458595B (en) | On-line monitoring and identifying device for transformer fault induced by oil-submerged pump | |
| CN103163415B (en) | Adopt the DC power system insulation monitoring and warning device of eccentric bridge technology | |
| CN209389768U (en) | Simple type emergency power supply Quick access device | |
| CN203178394U (en) | Direct current source system insulation monitoring device employing eccentric bridge technology | |
| CN111697587A (en) | AC/DC power supply device | |
| CN207388882U (en) | Pure electric coach high voltage distribution installation | |
| CN207503490U (en) | The multi-functional installation wiring training device of electric energy meter, mutual inductor | |
| CN106707083A (en) | Substation direct current grounding detecting device | |
| KR100966126B1 (en) | The digital controller pannel | |
| CN201541147U (en) | Direct current power supply system for substations |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190308 Address after: No. 232, Fuxing Road, Fuxing District, Handan, Hebei Province Co-patentee after: Handan Handan Iron and Steel Group Fengda Metallurgical Raw Materials Co.,Ltd. Patentee after: Handan Branch of Hegang Co.,Ltd. Address before: No. 232, Fuxing Road, Fuxing District, Handan, Hebei Province Patentee before: Handan Branch of Hegang Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180206 |