CN110426580A - A kind of the control cabinet method of inspection and device of cold water computer room group control system - Google Patents
A kind of the control cabinet method of inspection and device of cold water computer room group control system Download PDFInfo
- Publication number
- CN110426580A CN110426580A CN201910708328.1A CN201910708328A CN110426580A CN 110426580 A CN110426580 A CN 110426580A CN 201910708328 A CN201910708328 A CN 201910708328A CN 110426580 A CN110426580 A CN 110426580A
- Authority
- CN
- China
- Prior art keywords
- test
- control cabinet
- signal
- motor
- butterfly valve
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
Abstract
The present invention discloses the control cabinet method of inspection and device of a kind of cold water computer room group control system.Wherein, which includes: unit loop-around test module, electric motor loop test module, electric butterfly valve loop-around test module, analog quantity test module, communication test module.Through the invention, using the verifying attachment with real water system functions of the equipments, the operating condition of the controller control water system equipment under the various operating conditions of analog reduces control cabinet inspection cost convenient for the observation of test result.
Description
Technical field
The present invention relates to machine set technology fields, examine in particular to a kind of control cabinet of cold water computer room group control system
Method and device.
Background technique
Two big portions are broadly divided into the method for inspection of control cabinet used in cold water computer room group control system in industry at present
Point, first is that insulation pressure resistance, electric clearance, creepage distance, EMC electromagnetic compatibility, the forceful electric power winding displacement etc. that carry out for electrical safety are surveyed
Examination；Second is that for control cabinet internal electric control route winding displacement, wiring, the inspection of cabling correction.Inspection for electrical safety
It is very mature in industry, but the inspection in terms of control cabinet internal electric control route winding displacement and cabling is corrected, in industry
It is most of also to rest on the methods of traditional control drawing, manpower verification, controller and pre-programmed inspection are also only stopped
Laboratory or intra-office are stayed in, not the inspection of field level.
The existing electrical control cabinet method of inspection there are the problem of it is as follows:
1. control cabinet inside winding displacement, wiring, cabling are verified by artificial control drawing, it is time-consuming and laborious, and be easy
There is error；
2. controller can not be simulated and examine under field working conditions to the control situation of all kinds of water system equipment；
3. being only applicable in burning program in digital quantity or analog input and output control signal testing controller and controller, nothing
Method determines the operating condition after controller connection water system equipment.
Therefore original to electric control circuit wiring, winding displacement in the group control system control cabinet for being applied to water system, and control
The test method limitation of device control water system equipment working condition processed is more serious.
For the above problem existing for the electrical control cabinet method of inspection in the prior art, effective solution is not yet proposed at present
Scheme.
Summary of the invention
The control cabinet method of inspection and device of a kind of cold water computer room group control system are provided in the embodiment of the present invention, at least to solve
The problem of certainly can not simulating and examine in the prior art control situation to all kinds of water system equipment of controller under field working conditions.
In order to solve the above technical problems, the present invention provides a kind of control cabinet verifying attachments, wherein the verifying attachment packet
It includes:
Unit loop-around test module establishes connection with the unit of tested control cabinet, for executing unit loop-around test；
Electric motor loop test module establishes connection with the motor of the tested control cabinet, is used for actuating motor loop-around test；
Electric butterfly valve loop-around test module establishes connection with the electric butterfly valve of the tested control cabinet, electronic for executing
Butterfly valve loop-around test；
Analog quantity test module establishes connection with the tested control cabinet, for being directed to the sensing of the tested control cabinet
Device interface, simulation input output interface execute analog quantity test；
Communication test module establishes connection with the tested control cabinet, and the communication for executing the tested control cabinet is surveyed
Examination.
Further, the unit loop-around test module, comprising:
Unit Commitment loop-around test unit is received for sending unit ON signal and/or unit OFF signal to the unit
And it exports after the test program in the tested control cabinet handles the unit ON signal and/or the unit OFF signal and feeds back
Test result；
Unit fault test unit is received for being sent to it unit fault-signal in the case where the unit is opened
And the test program is exported to the test result fed back after unit fault-signal processing.
Further, the electric motor loop test module, comprising:
Motor start and stop loop-around test unit is received for sending motor ON signal and/or motor OFF signal to the motor
And it exports after the test program in the tested control cabinet handles the motor ON signal and/or the motor OFF signal and feeds back
Test result；
Motor status loop-around test unit, for being sent to it motor status signal in the case where the motor is opened,
It receives and exports the test program to the test result fed back after the motor status signal processing；
Electric machine frequency state loop-around test unit, for being sent to it electric machine frequency shape in the case where the motor is opened
State signal receives and exports the test program to the test result fed back after electric machine frequency status signal processing；
Electric machine frequency control circuit test cell, it is anti-for being sent to it electric machine frequency in the case where the motor is opened
Feedback value receives the test program treated frequency feedback value, and, receive the frequency control that the test program is sent
Value；By comparison treated frequency feedback value and the frequency controlling value, test result is obtained；
Electrical fault test cell is received for being sent to it motor failure signal in the case where the motor is opened
And the test program is exported to the test result fed back after motor failure signal processing.
Further, the electric butterfly valve loop-around test module, comprising:
Electric butterfly valve valve opening and a loop-around test unit is reached, opens control for sending electric butterfly valve to the electric butterfly valve
Signal, the test program received in the tested control cabinet open the electric butterfly valve test knot fed back after control signal processing
Fruit, and test result point is restored after being spaced preset duration；It is also used to after the test result point restores preset time, if described
Electric butterfly valve opens control signal and does not disappear, then receives and processes the electric butterfly valve that the tested control cabinet is sent and reach a signal,
Obtain test result；
Electric butterfly valve closes valve and closes loop-around test in place, closes control letter for sending electric butterfly valve to the electric butterfly valve
Number, the test program received in the tested control cabinet closes the test knot fed back after control signal processing to the electric butterfly valve
Fruit, and test result point is restored after being spaced preset duration；It is also used to after the test result point restores preset time, if described
Electric butterfly valve closes control signal and does not disappear, then receives and processes the electric butterfly valve that the tested control cabinet is sent and close signal in place,
Obtain test result；
Electric butterfly valve fault test unit, for being sent to it electric butterfly valve event in the case where the electric butterfly valve is opened
Hinder signal, receive and exports the test program to the test result fed back after electric butterfly valve fault-signal processing.
Further, the analog quantity test module, comprising:
Sensor circuit test cell receives described tested for sending sensor feedback value to the tested control cabinet
Test program in control cabinet treated sensor feedback value, and, receive the sensor processing that the test program is sent
Value；By comparison treated sensor feedback value and the sensor processing costs, test result is obtained；
Electronic by-passing valve circuit test unit, for sending electronic by-passing valve open degree feedback value to the tested control cabinet,
The test program is received treated electronic by-passing valve open degree feedback value, and, receive the aperture that the test program is sent
Controlling value；By comparison treated electronic by-passing valve open degree feedback value and the aperture controlling value, test result is obtained.
Further, the communication test module is specifically used for receiving to the tested control cabinet sending device value of feedback
Test program in the tested control cabinet treated equipment value of feedback, and, receive the processing that the test program is sent
Value；By comparison treated equipment value of feedback and the processing costs, test result is obtained.
Further, the equipment value of feedback includes at least following one:
Instantaneous flow, integrated flow, refrigeration work consumption, accumulative refrigerating capacity, motor power consumption, motor power consumption total amount, motor
Set of frequency, electric machine frequency feedback, unit power consumption, unit power consumption total amount.
Further, the test program is preset in the tested control cabinet.
The present invention also provides a kind of control cabinet verifying attachments, which is characterized in that the verifying attachment includes:
PLC master controller, for uploading and issuing test signal to tested control cabinet；
Communication module, for realizing the wired or wireless communication with the tested control cabinet；
AI analog input module and AO analog output module, for realizing the input and output of analog signal.
Further, the verifying attachment further include:
Touch screen, for showing test approaches, test process and test result；
Industrial switch, for forming local area network；
Intermediate relay, the conversion for strong and weak electric control signal.
The present invention also provides a kind of control cabinet methods of inspection, are applied to above-mentioned control cabinet verifying attachment, which is characterized in that
The described method includes:
Establish the connection of corresponding component in each test module in the verifying attachment and tested control cabinet；
It triggers each test module corresponding component into the tested control cabinet and sends corresponding test signal, to be surveyed
Examination project, and test program is received treated the test signal, obtain the test result of each test item；Wherein, institute
Test program is stated to be preset in the tested control cabinet.
Further, after obtaining test result, the method also includes: if the test result of all test items is equal
To have passed through, then determine that the tested control cabinet passes through inspection；If at least one test item is not pass through, institute is determined
It is not verified to state tested control cabinet.
Further, after determining that the tested control cabinet is not verified, the method also includes: it reminds to the quilt
It surveys control cabinet to be checked, until the tested control cabinet passes through inspection.
Further, the test module includes at least one of: unit loop-around test module, electric motor loop test mould
Block, electric butterfly valve loop-around test module, analog quantity test module, communication test module.
The present invention also provides a kind of computer readable storage mediums, are stored thereon with computer program, which is characterized in that
Above-mentioned method is realized when described program is executed by processor.
It applies the technical scheme of the present invention, using the verifying attachment with real water system functions of the equipments, analog is various
The operating condition of controller control water system equipment under operating condition reduces control cabinet inspection cost convenient for the observation of test result.
Detailed description of the invention
Fig. 1 is the schematic diagram for the modules that control cabinet verifying attachment according to an embodiment of the present invention has；
Fig. 2 is the electrical part architecture diagram of control cabinet verifying attachment according to an embodiment of the present invention；
Fig. 3 is the verifiable problem schematic diagram of control cabinet verifying attachment according to an embodiment of the present invention；
Fig. 4 is the touch screen main interface schematic diagram of control cabinet verifying attachment according to an embodiment of the present invention；
Fig. 5 is the touch screen unit loop-around test regional boundary face signal of control cabinet verifying attachment according to an embodiment of the present invention
Figure；
Fig. 6 is the touch screen electric motor loop test interface schematic diagram of control cabinet verifying attachment according to an embodiment of the present invention；
Fig. 7 is the touch screen electric butterfly valve loop-around test interface signal of control cabinet verifying attachment according to an embodiment of the present invention
Figure；
Fig. 8 is the touch screen analog quantity test interface schematic diagram of control cabinet verifying attachment according to an embodiment of the present invention；
Fig. 9 is the touch screen communication test interface schematic diagram of control cabinet verifying attachment according to an embodiment of the present invention；
Figure 10 is the flow chart of the control cabinet method of inspection according to an embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
It is described in detail to one step, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
All other embodiment, shall fall within the protection scope of the present invention.
The term used in embodiments of the present invention is only to be not intended to be limiting merely for for the purpose of describing particular embodiments
The present invention.In the embodiment of the present invention and the "an" of singular used in the attached claims, " described " and "the"
It is also intended to including most forms, unless the context clearly indicates other meaning, " a variety of " generally comprise at least two.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation for describing affiliated partner, indicate
There may be three kinds of relationships, for example, A and/or B, can indicate: individualism A, exist simultaneously A and B, individualism B these three
Situation.In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".
Depending on context, word as used in this " if ", " if " can be construed to " ... when " or
" when ... " or " in response to determination " or " in response to detection ".Similarly, context is depended on, phrase " if it is determined that " or " such as
Fruit detection (condition or event of statement) " can be construed to " when determining " or " in response to determination " or " when detection (statement
Condition or event) when " or " in response to detection (condition or event of statement) ".
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
Include, so that commodity or device including a series of elements not only include those elements, but also including not clear
The other element listed, or further include for this commodity or the intrinsic element of device.In the feelings not limited more
Under condition, the element that is limited by sentence "including a ...", it is not excluded that in the commodity or device for including the element also
There are other identical elements.
The alternative embodiment that the invention will now be described in detail with reference to the accompanying drawings.
Fig. 1 is the schematic diagram for the modules that control cabinet verifying attachment according to an embodiment of the present invention has, such as Fig. 1 institute
Show, the detection which is related to is as follows:
Unit loop-around test module establishes connection with the unit of tested control cabinet, for executing unit loop-around test；
Electric motor loop test module establishes connection with the motor of tested control cabinet, is used for actuating motor loop-around test；
Electric butterfly valve loop-around test module establishes connection with the electric butterfly valve of tested control cabinet, for executing electric butterfly valve
Loop-around test；
Analog quantity test module establishes connection with tested control cabinet, for sensor interface, the mould for tested control cabinet
Quasi- input/output interface executes analog quantity test；
Communication test module establishes connection with tested control cabinet, for executing the communication test of tested control cabinet.
The specific test process of modules is introduced below.
1) unit loop-around test module, comprising:
Unit Commitment loop-around test unit receives and defeated for sending unit ON signal and/or unit OFF signal to unit
The test program being tested in control cabinet out is to the test result fed back after unit ON signal and/or the processing of unit OFF signal；
Unit fault test unit receives and defeated for being sent to it unit fault-signal in the case where unit is opened
Test program is to the test result fed back after the processing of unit fault-signal out.
2) electric motor loop test module, comprising:
Motor start and stop loop-around test unit receives and defeated for sending motor ON signal and/or motor OFF signal to motor
The test program being tested in control cabinet out is to the test result fed back after motor ON signal and/or the processing of motor OFF signal；
Motor status loop-around test unit is received for being sent to it motor status signal in the case where motor is opened
And test program is exported to the test result fed back after motor status signal processing；
Electric machine frequency state loop-around test unit, for being sent to it electric machine frequency state letter in the case where motor is opened
Number, it receives and exports test program to the test result fed back after the processing of electric machine frequency status signal；
Electric machine frequency control circuit test cell, for being sent to it electric machine frequency feedback in the case where motor is opened
Value receives test program treated frequency feedback value, and, receive the frequency controlling value that test program is sent；Pass through comparison
Frequency feedback value that treated and frequency controlling value, obtain test result；
Electrical fault test cell receives and defeated for being sent to it motor failure signal in the case where motor is opened
Test program is to the test result fed back after motor failure signal processing out.
3) electric butterfly valve loop-around test module, comprising:
Electric butterfly valve valve opening and a loop-around test unit is reached, opens control letter for sending electric butterfly valve to electric butterfly valve
Number, the test program received in tested control cabinet opens electric butterfly valve the test result fed back after control signal processing, and is spaced
Test result point is restored after preset duration；It is also used to after the test result point restores preset time, if electric butterfly valve opens control
Signal processed does not disappear, then receives and processes the electric butterfly valve that tested control cabinet is sent and reach a signal, obtain test result；
Electric butterfly valve closes valve and closes loop-around test in place, closes control signal for sending electric butterfly valve to electric butterfly valve, connects
When receiving the test program in tested control cabinet and close the test result for controlling and feeding back after signal processing to electric butterfly valve, and being spaced default
Test result point is restored after length；It is also used to after the test result point restores preset time, if electric butterfly valve closes control signal
It does not disappear, then receives and processes the electric butterfly valve that tested control cabinet is sent and close signal in place, obtain test result；
Electric butterfly valve fault test unit, for being sent to it electric butterfly valve failure letter in the case where electric butterfly valve is opened
Number, it receives and exports test program to the test result fed back after the processing of electric butterfly valve fault-signal.
4) analog quantity test module, comprising:
Sensor circuit test cell receives in tested control cabinet for sending sensor feedback value to tested control cabinet
Test program treated sensor feedback value, and, receive the sensor processing costs that test program is sent；At comparison
Sensor feedback value and sensor processing costs after reason, obtain test result；
Electronic by-passing valve circuit test unit is received for sending electronic by-passing valve open degree feedback value to tested control cabinet
Test program treated electronic by-passing valve open degree feedback value, and, receive the aperture controlling value that test program is sent；By right
Than treated, electronic by-passing valve open degree feedback value and aperture controlling value, obtain test result.
5) communication test module is specifically used for receiving in tested control cabinet to tested control cabinet sending device value of feedback
Test program treated equipment value of feedback, and, receive the processing costs that test program is sent；Pass through comparison treated equipment
Value of feedback and processing costs, obtain test result.Above equipment value of feedback include at least following one: instantaneous flow, integrated flow,
Refrigeration work consumption, accumulative refrigerating capacity, motor power consumption, motor power consumption total amount, electric machine frequency setting, electric machine frequency feedback, unit
Power consumption, unit power consumption total amount.
It should be noted that above-mentioned test program is preset in tested control cabinet.Test program can be in operating status
The lower automatic control signal for capturing verifying attachment and sending, and preset signal is fed back to verifying attachment.
The present embodiment uses the verifying attachment with real water system functions of the equipments, the controller under the various operating conditions of analog
The operating condition of water system equipment is controlled, convenient for the observation of test result, reduces control cabinet inspection cost.
Fig. 2 is the electrical part architecture diagram of control cabinet verifying attachment according to an embodiment of the present invention, as shown in Fig. 2, examining dress
Set that be related to electrical part as follows:
PLC master controller, for uploading and issuing test signal to tested control cabinet；
Communication module, for realizing the wired or wireless communication with the tested control cabinet；
AI analog input module and AO analog output module, for realizing the input and output of analog signal.
Further include:
Touch screen, for showing test approaches, test process and test result；
Industrial switch, for forming local area network；
Intermediate relay, the conversion for strong and weak electric control signal.
Control cabinet verifying attachment of the invention is by touch screen, PLC controller, industrial grade switch and a small amount of intermediate relay
Composition, circuit composition is relatively simple, passes through the water system device model built in controller, including water cooler, fixed/frequency conversion water
Pump, fixed/frequency conversion cooling tower fan, electric butterfly valve, electronic by-passing valve, water treatment facilities etc., simulate the communication of relevant device, unlatching,
The courses of work such as operation, frequency conversion, fault alarm, closing, come test connection verifying attachment electrical control cabinet it is whether working properly,
Whether related electric circuit, controller execution are correct, so as to simulate and detect electric-controlled under the conditions of various field working conditions
Practical control situation of the cabinet processed to controlled device.
Verifying attachment uses 7 cun of touch screens, is made of a small amount of relay device and sheet metal component, and CPU is used only in used PLC
Module, communication module and two AI/AO modules, it is low in cost, and the PLC and the network switch that use resist for technical grade product
Jamming performance is strong, adapts to the inspection work under various field operating condition.
Fig. 3 is the verifiable problem schematic diagram of control cabinet verifying attachment according to an embodiment of the present invention, comprising:
Whether 1. electrical control cabinet connection can be examined normal, whether communication receiving/transmission is correct；
2. the wiring of electrical control cabinet controller can be examined whether correct；
3. the wiring of electrical control cabinet electric motor loop can be examined whether correct；
4. electrical control cabinet electric butterfly valve and electronic by-passing valve circuit connection can be examined whether correct；
5. primary controller procedure in electrical control cabinet can be examined whether correct in logic.
The control cabinet verifying attachment of the present embodiment, the component and function being related to are as follows:
1. one for protecting the 2P breaker of control cabinet verifying attachment circuit；
2. one for providing the Switching Power Supply of DC24V direct current to controller；
3. 7 cun of touch screens for showing and being operated for personnel；
4. an industrial network interchanger for local area network composition；
5. a set of PLC master controller for supporting control cabinet verifying attachment to operate, includes 1 master controller CPU mould
Block, 1 RS485/422 communication module, 1 simulation input AI module, 1 simulation output AO module；
6. the DC24V intermediate relay for the conversion of master controller signal；
7. the AC230V intermediate relay for peripheral control signal conversion.
It is as follows to be related to detailed wiring plate for the control cabinet verifying attachment of the present embodiment:
1. verifying attachment XP1 terminal block connects tested control cabinet water cooler, motor start and stop part；
2. verifying attachment XP2 terminal block connects the tested each electric butterfly valve loop feature of control cabinet；
3. verifying attachment XP3 terminal block connects tested control cabinet motor frequency conversion loop feature；
4. verifying attachment XP4 terminal block connects tested control cabinet sensor loop or simulation input output signal to be measured, with
And communication part.
Fig. 4 is the touch screen main interface schematic diagram of control cabinet verifying attachment according to an embodiment of the present invention, by unit circuit
Test, electric motor loop test, electric butterfly valve loop-around test, analog quantity loop-around test, order circuit test five test plate groups
At each test plate can click to enter corresponding test interface.
Fig. 5 is the touch screen unit loop-around test regional boundary face signal of control cabinet verifying attachment according to an embodiment of the present invention
Figure, can disposably carry out 2 unit simulation tests,
Individually unit simulation test includes:
1. the switch control key of unit, can be to tested electrical control cabinet output switching signal；
2. the malfunction key of unit can export fault-signal to tested electrical control cabinet；
3. the test result of unit shows point, result points are green if testing no problem, if there are problems to tie for test
Fruit dot is red.
Fig. 6 is the touch screen electric motor loop test interface schematic diagram of control cabinet verifying attachment according to an embodiment of the present invention,
2 motor simulation tests can be disposably carried out, single motor simulation test includes:
1. the local/remote status keys of motor can export local/remote signal to tested electrical control cabinet；
2. the switch control key of motor, can be to tested electrical control cabinet output switching signal；
3. the malfunction key of motor can export fault-signal to tested electrical control cabinet；
4. the power frequency of motor/frequency conversion status keys can export power frequency/frequency variation signal to tested electrical control cabinet；
5. the operating status point of motor, can show whether verifying attachment is just running in simulated machine；
6. whether the malfunction point of motor can show verifying attachment just in simulated machine failure；
7. whether the switch output point of motor can show verifying attachment just in the switch of simulated machine；
8. the frequency feedback display box of motor, can be to tested electrical control cabinet feedback frequency signal；
9. the rate-adaptive pacemaker of motor shows card, the frequency signal that tested electrical control issues can be shown.
10. the test result of motor shows point, result points are green if testing no problem, if there are problems to tie for test
Fruit dot is red.
Fig. 7 is the touch screen electric butterfly valve loop-around test interface signal of control cabinet verifying attachment according to an embodiment of the present invention
Figure, can disposably carry out 4 electric butterfly valve simulation tests, single motor butterfly valve simulation test includes:
1. the local/remote status keys of electric butterfly valve can export local/remote signal to tested electrical control cabinet；
2. the switch control key of electric butterfly valve, can be to tested electrical control cabinet output switching signal；
3. the malfunction key of electric butterfly valve can export fault-signal to tested electrical control cabinet；
4. electric butterfly valve reaches site, it can be exported to tested electrical control cabinet after click and reach a signal；
5. the pass of electric butterfly valve to site can export to tested electrical control cabinet after click and close signal in place；
6. the switch output point of electric butterfly valve, can show whether verifying attachment is simulating the switch of electric butterfly valve；
7. the malfunction point of electric butterfly valve, can show whether verifying attachment is simulating electric butterfly valve failure；
8. the test result of electric butterfly valve shows point, result points are green if testing no problem, if there are problems for test
Then result points are red.
Fig. 8 is the touch screen analog quantity test interface schematic diagram of control cabinet verifying attachment according to an embodiment of the present invention, one
Secondary property can carry out the simulation test of 4 sensors and 1 electronic by-passing valve.
Single Sensor Analog Relay System, which is tested, includes:
1. sensor returns numerical frame, numerical quantity can should be simulated to tested electrical control cabinet output phase；
2. sensor type selects, temperature, three kinds of pressure, flow sensors may be selected；
3. test result shows point, result points are green if testing no problem, if testing, there are problem result points to be
It is red.
Fig. 9 is the touch screen communication test interface schematic diagram of control cabinet verifying attachment according to an embodiment of the present invention, can be into
Row flow sensor, calorimeter, electric energy meter, communication mode frequency converter simulation test, comprising:
1. flow sensor/calorimeter part can be communicated corresponding to the output of tested electrical control cabinet by RS485/422
Instantaneous flow value, integrated flow value, refrigeration work consumption value, accumulative refrigeration magnitude；
2. electric energy meter part, can be communicated by RS485/422 to tested electrical control cabinet export corresponding power consumption value,
Power consumption total amount value, unit power consumption value, unit power consumption total amount value；
3. communication mode inverter section can be communicated to tested electrical control cabinet by RS485/422 and export corresponding electricity
Unit frequency setting value, electric machine frequency value of feedback；
4. test result shows point, result points are green if testing no problem, if testing, there are problem result points to be
It is red.
The testing process of control cabinet verifying attachment is introduced below, is broadly divided into preparation, unit time before test
Road testing process, electric motor loop testing process, electric butterfly valve loop-around test process, analog quantity testing process, communication test process,
Particular content is as follows:
1. preparation before testing:
1. needing module to be tested to connect by cable in verifying attachment respective modules tested electrical control cabinet；
2. the test program preset to tested control cabinet burning, test program can capture inspection dress automatically under operation
The control signal of transmission is set, and feeds back preset signal to verifying attachment；
3. finally opening verifying attachment.
Preparation terminates before testing.
2. unit loop-around test process:
(1) Unit Commitment loop-around test:
1. unit ON signal is sent on verifying attachment, after being tested electrical control cabinet reception unit ON signal, test
Program will be handled the signal, and feedback test result exports ON signal test result to verifying attachment, defeated
Restore test result point after ON signal test result 10s automatically out；
2. unit OFF signal is sent on verifying attachment, after being tested electrical control cabinet reception unit OFF signal, test program
The signal will be handled, and feedback test result exports OFF signal test result, output OFF signal test to verifying attachment
As a result test result point is restored after 10s automatically.
Unit Commitment loop-around test terminates.
(2) unit fault test:
Under conditions of unit is opened, unit fault-signal is sent on verifying attachment, is tested electrical control cabinet receiver
After group fault-signal, test program will be handled the signal, and feedback test result exports fault-signal to verifying attachment
Test result restores test result point after exporting fault-signal test result 10s automatically.
3. electric motor loop testing process:
(1) motor start and stop loop-around test:
1. motor ON signal is sent on verifying attachment, after being tested electrical control cabinet reception motor ON signal, test program
The signal will be handled, and feedback test result exports ON signal test result, output ON signal test to verifying attachment
As a result test result point is restored after 10s automatically；
2. motor OFF signal is sent on verifying attachment, after being tested electrical control cabinet reception motor OFF signal, test program
The signal will be handled, and feedback test result exports OFF signal test result, output OFF signal test to verifying attachment
As a result test result point is restored after 10s automatically.
Motor start and stop loop-around test terminates.
(2) motor local/remote state loop-around test:
Under conditions of motor is opened, motor local/remote signal is sent on verifying attachment, tested electrical control cabinet connects
After receiving motor local/remote signal, test program will be handled the signal, and feedback test result is to verifying attachment, defeated
Local/remote signal testing as a result, restore test result point after output local/remote signal testing result 10s automatically out.
Motor local/remote state loop-around test terminates.
(3) motor power frequency/frequency conversion state loop-around test:
Under conditions of motor is opened, motor power frequency/frequency variation signal is sent on verifying attachment, tested electrical control cabinet connects
After receiving motor power frequency/frequency variation signal, test program will be handled the signal, and feedback test result is to verifying attachment, defeated
Power frequency/frequency variation signal test result out exports power frequency/frequency variation signal test result 10s
Restore test result point automatically afterwards.
Motor power frequency/frequency conversion state loop-around test terminates.
(4) electric machine frequency control circuit is tested:
Under conditions of motor is opened, electric machine frequency value of feedback is inputted on verifying attachment, is tested electrical control cabinet and is received
After electric machine frequency value of feedback, test program will be handled frequency feedback value, while issue frequency controlling value to verifying attachment,
Verifying attachment will pass through comparison frequency feedback value and frequency controlling value, output frequency control circuit test result, output frequency control
Automatically test result point is restored after circuit test results 10s processed.
The test of electric machine frequency control circuit terminates.
(5) electrical fault is tested:
Under conditions of motor is opened, motor failure signal is sent on verifying attachment, is tested electrical control cabinet and is received electricity
After machine fault-signal, test program will be handled the signal, and feedback test result exports fault-signal to verifying attachment
Test result restores test result point after exporting fault-signal test result 10s automatically.
Electrical fault test terminates.
4. electric butterfly valve loop-around test process:
(1) electric butterfly valve valve opening and a loop-around test is reached:
1. sending electric butterfly valve on verifying attachment opens control signal, tested electrical control cabinet receives electric butterfly valve and opens control
After signal, test program will be handled the signal, and feedback test result, to verifying attachment, control signal testing is opened in output
As a result, output restores test result point after opening control signal testing result 10s automatically；
2. open control signal testing result points restore 5s after, if open control signal there is also, be tested electrical control cabinet to
Verifying attachment issues electric butterfly valve and reaches a signal, and verifying attachment receives and processes the signal, and a signal testing knot is reached in output
Fruit, output restore test result point after reaching a signal testing result 10s automatically.
It electric butterfly valve valve opening and reaches a loop-around test and terminates.
(2) electric butterfly valve closes valve and closes loop-around test in place:
1. sending electric butterfly valve on verifying attachment closes control signal, it is tested electrical control cabinet reception electric butterfly valve and closes control
After signal, test program will be handled the signal, and feedback test result is to verifying attachment, defeated Traffic control signal testing
As a result, restoring test result point automatically after defeated Traffic control signal testing result 10s；
2. close control signal testing result points restore 5s after, if close control signal there is also, be tested electrical control cabinet to
Verifying attachment issues electric butterfly valve and closes signal in place, and verifying attachment receives and processes the signal, and signal testing knot in place is closed in output
Fruit, output restore test result point after closing signal testing result 10s in place automatically.
Electric butterfly valve, which closes valve and closes loop-around test in place, to be terminated.
(3) electric butterfly valve fault test:
Under conditions of electric butterfly valve is opened, electric butterfly valve fault-signal is sent on verifying attachment, is tested electrical control
After cabinet receives electric butterfly valve fault-signal, test program will be handled the signal, and feedback test result is to verifying attachment,
Fault-signal test result is exported, restores test result point automatically after exporting fault-signal test result 10s.
Electric butterfly valve fault test terminates.
5. analog quantity testing process:
(1) sensor circuit is tested:
The input pickup value of feedback on verifying attachment after being tested electrical control cabinet receiving sensor value of feedback, tests journey
Sequence will be handled the value of feedback, while issue sensor processing costs to verifying attachment, and verifying attachment will be sensed by comparison
Device value of feedback and sensor processing costs, output transducer circuit test results are automatic after output transducer circuit test results 10s
Restore test result point.
Sensor circuit test terminates.
(2) electronic by-passing valve circuit test:
Electronic by-passing valve open degree feedback value is inputted on verifying attachment, is tested electrical control cabinet and is received electronic bypass valve opening
After value of feedback, test program will be handled aperture value of feedback, while issue aperture controlling value, verifying attachment to verifying attachment
Electronic by-passing valve circuit test results will be exported by comparison open degree feedback value and aperture controlling value, and export electronic by-passing valve electricity
Automatically test result point is restored after drive test test result 10s.
Electronic by-passing valve circuit test terminates.
6. communication test process:
(instantaneous flow, refrigeration work consumption, adds up integrated flow input need equipment value of feedback to be tested on verifying attachment
Refrigerating capacity, motor power consumption, motor power consumption total amount, electric machine frequency setting, electric machine frequency feedback, unit power consumption, unit
Power consumption total amount), after being tested the electronic by-passing valve relevant device value of feedback of electrical control cabinet reception, test program will carry out value of feedback
Processing, while processing costs is issued to verifying attachment, verifying attachment will be surveyed by comparison value of feedback and processing costs, outputting communication circuit
Test result restores test result point after outputting communication circuit test results 10s automatically.
Communicating circuit test terminates.
To sum up, all testing process are completed.
All items test result is " having passed through ", i.e. test result display point shows green, then the tested electricity of judgement
Gas control cabinet relevant control circuit no problem, tested electrical control cabinet pass through inspection.
If having a project testing result is " not passing through ", i.e. test result display point is shown in red, then the tested electricity of judgement
Gas control cabinet relevant control circuit failure, tested electrical control cabinet cannot need to check route, component etc. by examining
It examines, re-test after queueing problem, until upchecking.
Figure 10 is the flow chart of the control cabinet method of inspection according to an embodiment of the present invention, and as shown in Figure 10, this method includes
Following steps:
Step S101 establishes the connection of corresponding component in each test module in verifying attachment and tested control cabinet；
Step S102 triggers each test module corresponding component into tested control cabinet and sends corresponding test signal, with
Test item is carried out, and receives test program treated test signal, obtains the test result of each test item；Wherein,
The test program is preset in tested control cabinet.
The test module mentioned in the present embodiment includes at least one of: unit loop-around test module, electric motor loop are surveyed
Die trial block, electric butterfly valve loop-around test module, analog quantity test module, communication test module.
After obtaining test result, if the test result of all test items is to have passed through, the quilt is determined
It surveys control cabinet and passes through inspection；If at least one test item is not pass through, determine that the tested control cabinet does not pass through inspection
It tests.It reminds later and the tested control cabinet is checked, until the tested control cabinet passes through inspection.
The present embodiment uses the verifying attachment with real water system functions of the equipments, the controller under the various operating conditions of analog
The operating condition of water system equipment is controlled, convenient for the observation of test result, reduces control cabinet inspection cost.
The embodiment of the invention provides a kind of software, which retouches in above-described embodiment and preferred embodiment for executing
The technical solution stated.
The embodiment of the invention provides a kind of nonvolatile computer storage media, the computer storage medium is stored with
The control cabinet inspection party in above-mentioned any means embodiment can be performed in computer executable instructions, the computer executable instructions
Method.
Above-mentioned software is stored in above-mentioned storage medium, which includes but is not limited to: CD, floppy disk, hard disk, can
Flash memory etc..
From the above description it is found that the control cabinet method of inspection provided by the invention and device, are applied to cold water computer room group
Control system, the analog detection of carry out system before tested control cabinet dispatches from the factory.Mainly solve following technical problem:
1. solving, desk checking control cabinet control route winding displacement, wiring, time-consuming for cabling, at high cost, error is big
Drawback；
2. solving in the past to burning program in controller in the group control system control cabinet for being applied to water system and controller
Test can not simulate and detect under the conditions of various field working conditions controller to the control situation of water system equipment；
3. solving using only burning in digital quantity or analog input and output control signal testing controller and controller
Program, rather than use the limitation of real world devices test controller；
4. solving control cabinet test equipment shortage, the high situation of inspection cost.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (15)
1. a kind of control cabinet verifying attachment, which is characterized in that the verifying attachment includes:
Unit loop-around test module establishes connection with the unit of tested control cabinet, for executing unit loop-around test；
Electric motor loop test module establishes connection with the motor of the tested control cabinet, is used for actuating motor loop-around test；
Electric butterfly valve loop-around test module establishes connection with the electric butterfly valve of the tested control cabinet, for executing electric butterfly valve
Loop-around test；
Analog quantity test module establishes connection with the tested control cabinet, connects for the sensor for the tested control cabinet
Mouth, simulation input output interface execute analog quantity test；
Communication test module establishes connection with the tested control cabinet, for executing the communication test of the tested control cabinet.
2. the apparatus according to claim 1, which is characterized in that the unit loop-around test module, comprising:
Unit Commitment loop-around test unit receives and defeated for sending unit ON signal and/or unit OFF signal to the unit
Survey of the test program in the tested control cabinet to being fed back after the unit ON signal and/or unit OFF signal processing out
Test result；
Unit fault test unit receives and defeated for being sent to it unit fault-signal in the case where the unit is opened
The test program is to the test result fed back after unit fault-signal processing out.
3. the apparatus according to claim 1, which is characterized in that the electric motor loop test module, comprising:
Motor start and stop loop-around test unit receives and defeated for sending motor ON signal and/or motor OFF signal to the motor
Survey of the test program in the tested control cabinet to being fed back after the motor ON signal and/or motor OFF signal processing out
Test result；
Motor status loop-around test unit is received for being sent to it motor status signal in the case where the motor is opened
And the test program is exported to the test result fed back after the motor status signal processing；
Electric machine frequency state loop-around test unit, for being sent to it electric machine frequency state letter in the case where the motor is opened
Number, it receives and exports the test program to the test result fed back after electric machine frequency status signal processing；
Electric machine frequency control circuit test cell, for being sent to it electric machine frequency feedback in the case where the motor is opened
Value receives the test program treated frequency feedback value, and, receive the frequency controlling value that the test program is sent；
By comparison treated frequency feedback value and the frequency controlling value, test result is obtained；
Electrical fault test cell receives and defeated for being sent to it motor failure signal in the case where the motor is opened
The test program is to the test result fed back after motor failure signal processing out.
4. the apparatus according to claim 1, which is characterized in that the electric butterfly valve loop-around test module, comprising:
Electric butterfly valve valve opening and a loop-around test unit is reached, opens control letter for sending electric butterfly valve to the electric butterfly valve
Number, the test program received in the tested control cabinet opens the electric butterfly valve test knot fed back after control signal processing
Fruit, and test result point is restored after being spaced preset duration；It is also used to after the test result point restores preset time, if described
Electric butterfly valve opens control signal and does not disappear, then receives and processes the electric butterfly valve that the tested control cabinet is sent and reach a signal,
Obtain test result；
Electric butterfly valve closes valve and closes loop-around test in place, closes control signal for sending electric butterfly valve to the electric butterfly valve, connects
The test program in the tested control cabinet is received to the test result fed back after electric butterfly valve pass control signal processing, and
Test result point is restored after preset duration；It is also used to after the test result point restores preset time, if the electronic butterfly
Valve closes control signal and does not disappear, then receives and processes the electric butterfly valve that the tested control cabinet is sent and close signal in place, surveyed
Test result；
Electric butterfly valve fault test unit, for being sent to it electric butterfly valve failure letter in the case where the electric butterfly valve is opened
Number, it receives and exports the test program to the test result fed back after electric butterfly valve fault-signal processing.
5. the apparatus according to claim 1, which is characterized in that the analog quantity test module, comprising:
Sensor circuit test cell receives the tested control for sending sensor feedback value to the tested control cabinet
Test program in cabinet treated sensor feedback value, and, receive the sensor processing costs that the test program is sent；It is logical
Comparison treated sensor feedback value and the sensor processing costs are crossed, test result is obtained；
Electronic by-passing valve circuit test unit is received for sending electronic by-passing valve open degree feedback value to the tested control cabinet
The test program treated electronic by-passing valve open degree feedback value, and, receive the aperture control that the test program is sent
Value；By comparison treated electronic by-passing valve open degree feedback value and the aperture controlling value, test result is obtained.
6. the apparatus according to claim 1, which is characterized in that
The communication test module is specifically used for receiving the tested control to the tested control cabinet sending device value of feedback
Test program in cabinet treated equipment value of feedback, and, receive the processing costs that the test program is sent；At comparison
Equipment value of feedback and the processing costs after reason, obtain test result.
7. device according to claim 6, which is characterized in that the equipment value of feedback includes at least following one:
Instantaneous flow, integrated flow, refrigeration work consumption, accumulative refrigerating capacity, motor power consumption, motor power consumption total amount, electric machine frequency
Setting, electric machine frequency feedback, unit power consumption, unit power consumption total amount.
8. the apparatus of claim 2, which is characterized in that
The test program is preset in the tested control cabinet.
9. a kind of control cabinet verifying attachment, which is characterized in that the verifying attachment includes:
PLC master controller, for uploading and issuing test signal to tested control cabinet；
Communication module, for realizing the wired or wireless communication with the tested control cabinet；
AI analog input module and AO analog output module, for realizing the input and output of analog signal.
10. device according to claim 9, which is characterized in that the verifying attachment further include:
Touch screen, for showing test approaches, test process and test result；
Industrial switch, for forming local area network；
Intermediate relay, the conversion for strong and weak electric control signal.
11. a kind of control cabinet method of inspection is applied to control cabinet verifying attachment described in any item of the claim 1 to 8, special
Sign is, which comprises
Establish the connection of corresponding component in each test module in the verifying attachment and tested control cabinet；
It triggers each test module corresponding component into the tested control cabinet and sends corresponding test signal, to carry out test item
Mesh, and test program is received treated the test signal, obtain the test result of each test item；Wherein, the survey
Examination program is preset in the tested control cabinet.
12. according to the method for claim 11, which is characterized in that after obtaining test result, the method also includes:
If the test result of all test items is to have passed through, determine that the tested control cabinet passes through inspection；
If at least one test item is not pass through, determine that the tested control cabinet is not verified.
13. according to the method for claim 12, which is characterized in that after determining that the tested control cabinet is not verified,
The method also includes:
The tested control cabinet is checked in prompting, until the tested control cabinet passes through inspection.
14. according to the method for claim 11, which is characterized in that the test module includes at least one of:
Unit loop-around test module, electric butterfly valve loop-around test module, analog quantity test module, is led at electric motor loop test module
Interrogate test module.
15. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that described program is processed
The method as described in any one of claim 11 to 14 is realized when device executes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910708328.1A CN110426580B (en) | 2019-08-01 | 2019-08-01 | Control cabinet inspection method and device of water cooling machine room group control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910708328.1A CN110426580B (en) | 2019-08-01 | 2019-08-01 | Control cabinet inspection method and device of water cooling machine room group control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110426580A true CN110426580A (en) | 2019-11-08 |
| CN110426580B CN110426580B (en) | 2021-02-02 |
Family
ID=68413761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910708328.1A Active CN110426580B (en) | 2019-08-01 | 2019-08-01 | Control cabinet inspection method and device of water cooling machine room group control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110426580B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111966077A (en) * | 2020-08-13 | 2020-11-20 | 格力电器（合肥）有限公司 | Test equipment and test method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144285A (en) * | 2007-10-25 | 2008-03-19 | 中国建筑设计研究院 | Experiment device for simulating house draining system and detecting method thereof |
| CN101515014A (en) * | 2009-03-17 | 2009-08-26 | 中国西电电气股份有限公司 | Analog device of control cabinet matched with detection switch apparatus |
| CN101739023A (en) * | 2009-11-17 | 2010-06-16 | 中国电子科技集团公司第三十八研究所 | Car body controller simulation system |
| CN202067144U (en) * | 2011-04-22 | 2011-12-07 | 天津鑫宝龙机械集团有限公司 | Test bed of elevator control cabinet |
| US20140222212A1 (en) * | 2013-01-24 | 2014-08-07 | Trane International Inc. | Dynamic simulated motor |
| CN205953231U (en) * | 2016-08-30 | 2017-02-15 | 四川科莱电梯股份有限公司 | Lift control cabinet detecting system |
| CN107819857A (en) * | 2017-11-14 | 2018-03-20 | 合肥奇骏自动化控制有限公司 | A kind of water supply network remote monitoring system |
| CN108803583A (en) * | 2018-08-20 | 2018-11-13 | 珠海格力电器股份有限公司 | The test equipment of group control system switch board |
| CN108803579A (en) * | 2018-08-13 | 2018-11-13 | 珠海格力电器股份有限公司 | Simulation testing device and method, chiller plant control system and air-conditioning equipment |
| CN208399603U (en) * | 2018-05-30 | 2019-01-18 | 上海烟草机械有限责任公司 | The detection system of electrical control cabinet |
-
2019
- 2019-08-01 CN CN201910708328.1A patent/CN110426580B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144285A (en) * | 2007-10-25 | 2008-03-19 | 中国建筑设计研究院 | Experiment device for simulating house draining system and detecting method thereof |
| CN101515014A (en) * | 2009-03-17 | 2009-08-26 | 中国西电电气股份有限公司 | Analog device of control cabinet matched with detection switch apparatus |
| CN101739023A (en) * | 2009-11-17 | 2010-06-16 | 中国电子科技集团公司第三十八研究所 | Car body controller simulation system |
| CN202067144U (en) * | 2011-04-22 | 2011-12-07 | 天津鑫宝龙机械集团有限公司 | Test bed of elevator control cabinet |
| US20140222212A1 (en) * | 2013-01-24 | 2014-08-07 | Trane International Inc. | Dynamic simulated motor |
| CN205953231U (en) * | 2016-08-30 | 2017-02-15 | 四川科莱电梯股份有限公司 | Lift control cabinet detecting system |
| CN107819857A (en) * | 2017-11-14 | 2018-03-20 | 合肥奇骏自动化控制有限公司 | A kind of water supply network remote monitoring system |
| CN208399603U (en) * | 2018-05-30 | 2019-01-18 | 上海烟草机械有限责任公司 | The detection system of electrical control cabinet |
| CN108803579A (en) * | 2018-08-13 | 2018-11-13 | 珠海格力电器股份有限公司 | Simulation testing device and method, chiller plant control system and air-conditioning equipment |
| CN108803583A (en) * | 2018-08-20 | 2018-11-13 | 珠海格力电器股份有限公司 | The test equipment of group control system switch board |
Non-Patent Citations (1)
| Title |
|---|
| 侯键: "基于ARM的螺杆式冷水机组控制器的研制", 《中国优秀硕士论文电子期刊网 信息科技辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111966077A (en) * | 2020-08-13 | 2020-11-20 | 格力电器（合肥）有限公司 | Test equipment and test method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110426580B (en) | 2021-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109617241B (en) | Intelligent sequential control system and method based on panoramic data in transformer substation | |
| Kezunovic et al. | A novel software implementation concept for power quality study | |
| CN107679649A (en) | A kind of failure prediction method of electrical equipment, device, storage medium and electrical equipment | |
| CN110456207A (en) | A kind of intelligent low-pressure method for diagnosing faults of open air | |
| CN107678960A (en) | Intelligent electric energy meter software Black-box Testing system and method | |
| CN102289731A (en) | Method for maintaining state of power transmission equipment based on system risk | |
| CN106935089A (en) | Power information acquisition terminal installation training system and method | |
| CN106850558A (en) | Intelligent electric meter abnormal state detection method based on seaconal model time series | |
| CN104091622A (en) | Method and system for evaluating availability ratio of nuclear power plant digital control system | |
| EP3972084A2 (en) | Systems and methods for monitoring energy-related data in an electrical system | |
| CN106771730A (en) | The intelligent substation real-time calibration equipment of protection device analog quantity sampling circuit and method | |
| CN109599783A (en) | A kind of safe distribution simulation screen system and its control method based on cloud platform | |
| CN106199313A (en) | The amount of the outputing loop method of calibration of transforming plant protecting device secondary circuit and equipment | |
| CN106772188A (en) | Transformer operation characteristic evaluation method and evaluating platform based on environmental impact factor | |
| CN106443414A (en) | Detection device for single-phase voltage self-resetting module | |
| CN106327103A (en) | Distribution room operating state evaluation system and evaluation method | |
| CN110426580A (en) | A kind of the control cabinet method of inspection and device of cold water computer room group control system | |
| CN115177893A (en) | Main transformer oil discharging and nitrogen charging fire fighting device and control method thereof | |
| CN106941434A (en) | The detecting system and method for a kind of communication message | |
| CN207396635U (en) | Reliability testing equipment for power distribution terminal | |
| CN107167181A (en) | The intelligent automation detection method and system of a kind of electric heater | |
| CN108535563A (en) | A kind of method for testing open/close machine and test system | |
| CN205899894U (en) | Use emulation intelligent ammeter's trouble analogue means | |
| CN108226843A (en) | The test system of fault detector based on real time data display | |
| CN103984250B (en) | Multi-gear resistance output device and detecting system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |