CN106443441A - Ship and maritime work platform medium-voltage power system load test device - Google Patents
Ship and maritime work platform medium-voltage power system load test device Download PDFInfo
- Publication number
- CN106443441A CN106443441A CN201610557493.8A CN201610557493A CN106443441A CN 106443441 A CN106443441 A CN 106443441A CN 201610557493 A CN201610557493 A CN 201610557493A CN 106443441 A CN106443441 A CN 106443441A
- Authority
- CN
- China
- Prior art keywords
- power system
- water resistance
- intermediate voltage
- system load
- ship
- 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.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 67
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 238000012544 monitoring process Methods 0.000 claims abstract description 18
- 230000000903 blocking effect Effects 0.000 claims description 31
- 239000012530 fluid Substances 0.000 claims description 20
- 238000001802 infusion Methods 0.000 claims description 16
- 239000013589 supplement Substances 0.000 claims description 5
- 230000009466 transformation Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 9
- 230000008859 change Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000003556 assay Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011022 operating instruction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
- G01R31/34—Testing dynamo-electric machines
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
Abstract
The invention discloses a ship and maritime work platform medium-voltage power system load test device. The test device comprises unitized transformers, unitized water resistors, adjustable reactors and a monitoring network; the monitoring network is composed of PLCs and the like; Modbus communication is applied to the writing of a man-machine interface; and the PLCs are mainly adopted as execution components of the output of a monitoring host computer, control the unitized transformers, the unitized water resistors and the adjustable reactor units and realize the automatic adjustment function of test load. The ship and maritime work platform medium-voltage power system load test device provided by the technical schemes of the invention is designed according to the test requirement of the construction of a semi-submersible vessel power station of 100,000 tons, can meet the test requirement of a 4750KW*6 high-power medium-voltage power station and greatly improve the efficiency of tests.
Description
Technical field
The present embodiments relate to marine vessel power equipment technical field, piezoelectricity in more particularly, to a kind of ship and maritime platform
Force system load test apparatus.
Background technology
Middle pressure motor load assay device is the indispensable visual plant of pressure motor debugging in ship.At present, shipyard examination
When testing middle pressure motor, all outer rent dry load test apparatus.The drawbacks of dry type loads is it is impossible to stepless loading, and load becomes
Greatly, load drift is big to change fluctuation during switching.So, when being tested using dry type load, the easy frequency fluctuation of electromotor, causes
Test period is long.
Content of the invention
For above-mentioned technical problem, embodiments provide a kind of ship and maritime platform intermediate voltage electric power system load
Assay device so that in process of the test load can stepless load, substantially increase test efficiency.
Embodiments provide a kind of ship and maritime platform intermediate voltage electric power system load test apparatus, including：
Blocking transformator, the voltage for exporting to test power system carries out transformation；
Blocking water resistance, for testing to described test power system as resistive load；
REgulatable reactor, for testing to described test power system as resistance load；
Monitoring network, for monitoring described blocking transformator, described blocking water resistance and described REgulatable reactor
Run, and record the test data that described ship and maritime platform intermediate voltage electric power system are tested.
Ship provided in an embodiment of the present invention and maritime platform intermediate voltage electric power system load test apparatus, by adopting unit
Change water resistance so that load can stepless load in process of the test.Actual tests prove, described ship intermediate voltage power system is real
Experiment device man machine interface is friendly, easy to use, efficiency high, and every ship electromotor experiment can shorten 4-10 days, participates in test people
Member can reduce by 5 people.
Brief description
By reading the detailed description that non-limiting example is made made with reference to the following drawings, other of the present invention
Feature, objects and advantages will become more apparent upon：
Fig. 1 is ship provided in an embodiment of the present invention and the system list of maritime platform intermediate voltage electric power system load test apparatus
Line chart；
Fig. 2 be ship provided in an embodiment of the present invention and maritime platform intermediate voltage electric power system load test apparatus enter water control
Drawing；
Fig. 3 is ship provided in an embodiment of the present invention and the converter of maritime platform intermediate voltage electric power system load test apparatus
Loop diagram；
Fig. 4 is ship provided in an embodiment of the present invention and the main system of maritime platform intermediate voltage electric power system load test apparatus
Network architecture diagram；
Fig. 5 is the analog input circuit schematic diagram of water resistance PLC provided in an embodiment of the present invention；
Fig. 6 is the digital input circuit schematic diagram of water resistance PLC provided in an embodiment of the present invention；
Fig. 7 is the output circuit schematic diagram of water resistance PLC provided in an embodiment of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that, in order to just
Part related to the present invention rather than entire infrastructure is illustrate only in description, accompanying drawing.
Present embodiments provide ship and a kind of technical scheme of maritime platform intermediate voltage electric power system load test apparatus.Ginseng
See Fig. 1, described ship intermediate voltage power system load test apparatus include：Blocking transformator, blocking water resistance, regulative reactance
Device, and monitoring network.
Fig. 1 shows described ship and the system line chart of maritime platform intermediate voltage electric power system load test apparatus.Referring to
Fig. 1, described ship and maritime platform intermediate voltage electric power system load test apparatus include：6 blocking transformators 11.Described unit
Change transformator 11 one end to be connected with the voltage output end of described ship or the intermediate voltage generating station of maritime platform, to described voltage output
After the voltage of end output carries out transformation, the voltage after transformation is exported to corresponding open circuit by 440V/690V loop
Device 12.The purpose arranging described transformator 11 is, concrete to the output voltage of described ship and maritime platform intermediate voltage generating station
Magnitude of voltage enters line translation, so that in the magnitude of voltage and described ship by the intermediate voltage generating station output of described ship or maritime platform
The rated voltage of piezoelectric forces system loading assay device matches.
Described chopper 12 includes resistance breaker and reactance chopper.Described resistance breaker is included in described list
Chopper in unitization water resistance.Described reactance chopper is included in the chopper in described REgulatable reactor.
Fig. 2 show described ship and maritime platform intermediate voltage electric power system load test apparatus enter water management circuit former
Reason figure.Referring to Fig. 2, described fluid supplement solenoid valve is by controlling that fluid infusion switchs.When described fluid infusion switch closure, described fluid infusion electromagnetism
Valve is opened, and the electro-hydraulic cylinder of deposit in described blocking water resistance carries out automatic liquid supply, when described fluid infusion switches off, described benefit
Liquid electromagnetic valve disconnects, and the electro-hydraulic cylinder of deposit in described blocking water resistance stops fluid infusion.
And, above-mentioned fluid infusion switch is controlled by the water resistance PLC being arranged in described blocking water resistance.As described
A part for network is monitored, described water resistance PLC passes through defeated in ship and maritime platform intermediate voltage electric power system load test apparatus
Go out fluid supplement solenoid valve control signal to control whether to carry out fluid infusion to the electro-hydraulic cylinder in described blocking water resistance.
Fig. 3 shows the circuit in the converter loop of described ship and maritime platform intermediate voltage electric power system load test apparatus
Schematic diagram.Referring to Fig. 3, described converter loop includes 6 converters 31 being connected with alternating current power supply.Every converter 31 is right
Input alternating current power supply therein and carry out frequency conversion, and using the alternating current power supply drive threshold corresponding fluid infusion pump 32 after frequency conversion, and
Coolant circulation pump 33 is thus complete the regulation and control to fluid infusion speed and cooldown rate.
The upconversion operation of above-mentioned converter 31 is also to be automatically performed under the control of corresponding PLC.Described PLC is with frequency conversion
The output frequency of converter 31 described in the form control of device speed controling signal.If the output frequency of described converter 31 is relatively
Height, then the fluid infusion pump 32 being driven by described converter 31 and the rotating speed of coolant circulation pump 33 are higher, and work electro-hydraulic cylinder to water resistance
Fluid infusion speed is very fast；If the output frequency of described converter 31 is relatively low, the fluid infusion pump 32 being driven by described converter 31
Rotating speed is relatively low, and electro-hydraulic cylinder fluid infusion speed that water resistance is worked is slower.
Fig. 4 shows the network of the main system network of described ship and maritime platform intermediate voltage electric power system load test apparatus
Organization Chart.Referring to Fig. 4, described main system network includes remote monitoring host computer 41, local monitor control parts 42, water resistance
PLC 43 and reactor PLC 44.Each network element in described main system network is connected by Modbus.
Described remote monitoring host computer 41 is a long-range computer, and it is not deployed in described ship and maritime platform
Intermediate voltage electric power system load test apparatus local.By described remote monitoring host computer 41 and described water resistance PLC 43 and institute
State and all there is Modbus network connection between reactor PLC 44, it can be got by described Modbus network connection described
Blocking water resistance and described adjustable can the various operational factors that collect of anti-device, and by with Modbus network therebetween
Connect, in the form of instructing, send operating instruction to described blocking water resistance and described REgulatable reactor.
Further, described remote monitoring host computer 41 is provided with the remote monitoring software of customization.By described long-range
The function of monitoring software, user can be with each in ship described in Real-time Collection and maritime platform intermediate voltage electric power system load test apparatus
The operational factor of individual part, running status, pass through instruction to each in described ship intermediate voltage power system load test apparatus simultaneously
The operation of individual part is monitored.
Described local monitor control parts 42 can be local monitor control button or local monitor controls touch
Screen.That is, the user of ship provided in an embodiment of the present invention and maritime platform intermediate voltage electric power system load test apparatus can
With by local monitor control button, or local monitor controls touch screen to control described ship and maritime platform medium voltage electricity system
The operation of the associated components of system load test apparatus.
Due to there are remote monitoring host computer 41 and local monitor control parts 42 in described main system network, and described
Local monitor control parts 42 include local monitor control button again and local monitor controls touch screen.Monitoring to water resistance is adjusted
Section mode has long-range host computer, local keys of key and three kinds of modes of local touch screen.
Described water resistance PLC 43 is arranged in described blocking water resistance.It is the control core of described blocking water resistance
The heart.Described water resistance PLC 43 gathers the various fortune of described blocking water resistance by all parts of described blocking water resistance
Row state and operational factor.Meanwhile, described water resistance PLC 43, according to the operating instruction receiving, controls such as converter, benefit
The operation of the parts such as liquid electromagnetic valve.
Described reactor PLC 44 is arranged in described REgulatable reactor.Accordingly, described reactor PLC 44 is described
The control core of REgulatable reactor, the operation of REgulatable reactor body described in its controlling value.
Fig. 5 shows the circuit theory diagrams of the analog input circuit of described water resistance PLC.Referring to Fig. 5, the first to the 3rd electricity
Stream detection chip 51,52,53 detects the output current in its corresponding blocking water resistance respectively.Above three current detecting core
The output current that piece 51,52,53 detects is separately input into described water resistance PLC, described water resistance PLC by foregoing circuit
Above-mentioned water resistance output current can be uploaded to described remote monitoring host computer, be also used for automatization's control of PLC oneself simultaneously
System.
Fig. 6 shows the circuit theory diagrams of the digital input circuit of described water resistance PLC.Referring to Fig. 6, using described numeral
Input circuit, the electro-hydraulic cylinder Level Detection signal of the described blocking water resistance being detected by corresponding testing circuit, converter
Fault status signal and circuit-breaker status signal are input to described water resistance PLC.
Fig. 7 shows the circuit theory diagrams of the input circuit of described water resistance PLC.Referring to Fig. 7, become by input is corresponding
Frequency device speed controling signal and converter on off control signal, described water resistance PLC can control the start and stop of converter, Yi Jiyu
The rotating speed of the corresponding small pump of described converter.
Ship intermediate voltage power system load test apparatus provided in an embodiment of the present invention are according to 100,000 tons of semi-submerged ship electricity of construction
The requirement configuration of the test stood, disclosure satisfy that the test demand of the high-power intermediate voltage generating station of 4750KW*6.Using the embodiment of the present invention
The ship intermediate voltage power system load test apparatus providing, the stress test efficiency of intermediate voltage generating station for ship significantly improves.Every ship electricity
Test period of standing shortens 4-10 days, and the personnel amount participating in test can reduce by 5 people.In addition, the test of every ship power station can save diesel oil
30 tons, economic benefits.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for those skilled in the art
For, the present invention can have various change and change.All any modifications made within spirit and principles of the present invention, equivalent
Replace, improve etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of ship and maritime platform intermediate voltage electric power system load test apparatus are it is characterised in that include：
Blocking transformator, the voltage for exporting to test power system carries out transformation；
Blocking water resistance, for consuming active power as load resistance；
REgulatable reactor, for consuming reactive power as load reactance；
Monitoring network, for monitoring the operation of described blocking transformator, described blocking water resistance and described REgulatable reactor,
And record the test data that described ship and maritime platform intermediate voltage electric power system are tested.
2. ship according to claim 1 and maritime platform intermediate voltage electric power system load test apparatus are it is characterised in that institute
State blocking water resistance to include：
Electro-hydraulic cylinder, for holding the electro-hydraulic of described blocking water resistance；
Fluid infusion pump, for supplementary described electro-hydraulic in described electro-hydraulic cylinder；
Converter, for controlling the frequency of described fluid infusion pump, supplements described electro-hydraulic speed to adjust in described electro-hydraulic cylinder；
Fluid supplement solenoid valve, for being controlled whether to fluid infusion in described electro-hydraulic cylinder by the break-make of itself.
3. ship according to claim 2 and maritime platform intermediate voltage electric power system load test apparatus are it is characterised in that institute
State blocking water resistance also to include：
Resistance breaker, for controlling the break-make electrically connecting between described blocking water resistance and described test power system.
4. ship according to claim 3 and maritime platform intermediate voltage electric power system load test apparatus are it is characterised in that institute
State resistance breaker to include：Air-break ACB.
5. ship according to claim 1 and maritime platform intermediate voltage electric power system load test apparatus are it is characterised in that institute
State REgulatable reactor to include：
REgulatable reactor body；
Reactance chopper, for controlling the break-make electrically connecting between described REgulatable reactor and described test power system.
6. ship according to claim 5 and maritime platform intermediate voltage electric power system load test apparatus are it is characterised in that institute
State reactance chopper to include：Air-break ACB.
7. ship according to claim 1 and maritime platform intermediate voltage electric power system load test apparatus are it is characterised in that institute
State monitoring network to include：
Water resistance PLC, is arranged at the inside of described blocking water resistance, for controlling the operation of described blocking water resistance；
Reactor PLC, is arranged at the inside of described REgulatable reactor, for controlling the operation of described REgulatable reactor；
Local monitor control parts, are arranged at the local of described ship intermediate voltage power system load test device, respectively with described
Water resistance PLC and described reactor PLC connect, for carrying out to the operation of described blocking water resistance and described REgulatable reactor
Monitoring；
Remote monitoring host computer, is connected with described water resistance PLC and described reactor PLC respectively, for described blocking water
The operation of resistance and described REgulatable reactor is monitored.
8. ship according to claim 7 and maritime platform intermediate voltage electric power system load test apparatus are it is characterised in that institute
State long-range host computer to be connected with described water resistance PLC and described reactor PLC by Modbus.
9. ship according to claim 8 and maritime platform intermediate voltage electric power system load test apparatus are it is characterised in that institute
The output signal stating water resistance PLC includes：Fluid supplement solenoid valve control signal, converter speed controling signal.
10. ship according to claim 8 and maritime platform intermediate voltage electric power system load test apparatus it is characterised in that
The input signal of described water resistance PLC includes：Electro-hydraulic cylinder Level Detection signal, frequency converter failure status signal, circuit-breaker status
Signal, electro-hydraulic cylinder run load signal and its control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610557493.8A CN106443441A (en) | 2016-07-12 | 2016-07-12 | Ship and maritime work platform medium-voltage power system load test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610557493.8A CN106443441A (en) | 2016-07-12 | 2016-07-12 | Ship and maritime work platform medium-voltage power system load test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106443441A true CN106443441A (en) | 2017-02-22 |
Family
ID=58185029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610557493.8A Pending CN106443441A (en) | 2016-07-12 | 2016-07-12 | Ship and maritime work platform medium-voltage power system load test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106443441A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748534A (en) * | 2017-11-15 | 2018-03-02 | 苏州华电电气股份有限公司 | Test platform and its control device |
| CN108020784A (en) * | 2017-12-13 | 2018-05-11 | 广新海事重工股份有限公司 | A kind of marine generator group load test teledata acquisition device |
| CN109946604A (en) * | 2019-03-29 | 2019-06-28 | 大连海事大学 | A kind of propeller for vessels load simulating device and its control method based on OPC mechanics of communication |
| CN111007395A (en) * | 2019-11-16 | 2020-04-14 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Test topology and method for comprehensive power system of multifunctional ship direct-current power station |
| CN114906294A (en) * | 2022-06-06 | 2022-08-16 | 广船国际有限公司 | Ship load simulation test method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0495882A (en) * | 1990-08-14 | 1992-03-27 | Meidensha Corp | Test load facility |
| JPH0536824U (en) * | 1991-10-16 | 1993-05-18 | 日新電機株式会社 | Water resistance reactor |
| CN102495369A (en) * | 2011-12-31 | 2012-06-13 | 广州中船龙穴造船有限公司 | Water resistor for load test in generator and generator load testing device |
| CN102539855A (en) * | 2012-01-18 | 2012-07-04 | 广新海事重工股份有限公司 | Moving self-control full-characteristic load device for load test of power generator for vessel |
| CN202486290U (en) * | 2012-01-18 | 2012-10-10 | 广新海事重工股份有限公司 | Movable automatic control full-featured load device applied to marine generator load test |
| CN105004996A (en) * | 2015-07-09 | 2015-10-28 | 青岛武船重工有限公司 | Integrated load test device applicable to ship generating set |
| CN205844490U (en) * | 2016-07-12 | 2016-12-28 | 广船国际有限公司 | Boats and ships and maritime platform intermediate voltage electric power system load test apparatus |
-
2016
- 2016-07-12 CN CN201610557493.8A patent/CN106443441A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0495882A (en) * | 1990-08-14 | 1992-03-27 | Meidensha Corp | Test load facility |
| JPH0536824U (en) * | 1991-10-16 | 1993-05-18 | 日新電機株式会社 | Water resistance reactor |
| CN102495369A (en) * | 2011-12-31 | 2012-06-13 | 广州中船龙穴造船有限公司 | Water resistor for load test in generator and generator load testing device |
| CN102539855A (en) * | 2012-01-18 | 2012-07-04 | 广新海事重工股份有限公司 | Moving self-control full-characteristic load device for load test of power generator for vessel |
| CN202486290U (en) * | 2012-01-18 | 2012-10-10 | 广新海事重工股份有限公司 | Movable automatic control full-featured load device applied to marine generator load test |
| CN105004996A (en) * | 2015-07-09 | 2015-10-28 | 青岛武船重工有限公司 | Integrated load test device applicable to ship generating set |
| CN205844490U (en) * | 2016-07-12 | 2016-12-28 | 广船国际有限公司 | Boats and ships and maritime platform intermediate voltage electric power system load test apparatus |
Non-Patent Citations (2)
| Title |
|---|
| 杨少光: "《可编程控制器应用基础》", 广东高等教育出版社, pages: 142 - 144 * |
| 郑俊和: "新型盐水缸负荷计算机监控系统的研制", 《中国优秀硕士学位论文全文数据库信息科技辑》, no. 02, 15 December 2011 (2011-12-15), pages 6 - 26 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748534A (en) * | 2017-11-15 | 2018-03-02 | 苏州华电电气股份有限公司 | Test platform and its control device |
| CN108020784A (en) * | 2017-12-13 | 2018-05-11 | 广新海事重工股份有限公司 | A kind of marine generator group load test teledata acquisition device |
| CN109946604A (en) * | 2019-03-29 | 2019-06-28 | 大连海事大学 | A kind of propeller for vessels load simulating device and its control method based on OPC mechanics of communication |
| CN109946604B (en) * | 2019-03-29 | 2021-06-04 | 大连海事大学 | Ship propeller load simulation device based on OPC communication technology and control method thereof |
| CN111007395A (en) * | 2019-11-16 | 2020-04-14 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Test topology and method for comprehensive power system of multifunctional ship direct-current power station |
| CN114906294A (en) * | 2022-06-06 | 2022-08-16 | 广船国际有限公司 | Ship load simulation test method |
| CN114906294B (en) * | 2022-06-06 | 2023-06-16 | 广船国际有限公司 | Ship load simulation test method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106443441A (en) | Ship and maritime work platform medium-voltage power system load test device | |
| CN106773979B (en) | A kind of managing and control system and method suitable for shipping shore power system power supply and information | |
| CN109582004B (en) | Intelligent detection platform | |
| CN106707794A (en) | Functional modeling-based more-electric aircraft power system modeling method and model thereof | |
| CN205844490U (en) | Boats and ships and maritime platform intermediate voltage electric power system load test apparatus | |
| CN112180192A (en) | Power electronic equipment field test detection method | |
| CN107271899A (en) | A kind of method of testing of many specification voltage generating sets | |
| CN204965174U (en) | Power hardware is at ring test system | |
| CN105914760A (en) | Distribution network reactive power compensation control method and device capable of suppressing resonance | |
| CN101860050B (en) | Discharge test device for distributed full online storage battery pack | |
| CN208874352U (en) | Centralized multi-purpose cargo ship ups system | |
| CN104967146A (en) | Micro-grid grid-connected and off-grid control system | |
| CN108663592A (en) | It is a kind of to towed SVG modular debuggings platform and method | |
| CN207339291U (en) | A kind of bank electricity variable-frequency power sources static exciter intelligence control system | |
| CN211123099U (en) | Shore power detection device | |
| CN105242221A (en) | DC feedback type DC electronic load for locomotive power supply test | |
| CN201842578U (en) | Electrical control system of full-rotating barge derrick | |
| CN107076111B (en) | Method for coordinating the control of wind power plant during the black starting-up of islanding operation | |
| CN201639336U (en) | Distributed type full-online storage battery charge-discharge testing equipment | |
| CN105305449A (en) | Ship shore power system | |
| CN105423278A (en) | Whole-process control system for boiler water level | |
| CN208520445U (en) | A kind of flowmeter Hi-pot test station | |
| CN209460333U (en) | A kind of complete machine low-power consumption high current band of high-voltage frequency converter, which carries, to be set | |
| CN203278242U (en) | Stationary type compensation device for petroleum drilling machine small power network | |
| CN102003373A (en) | Joint inspection device of drainage pump and pump station generating set under high-speed rail and in tunnel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170222 |