CN206020552U - Simulation detection device for excitation regulator of generator - Google Patents
Simulation detection device for excitation regulator of generator Download PDFInfo
- Publication number
- CN206020552U CN206020552U CN201620907614.2U CN201620907614U CN206020552U CN 206020552 U CN206020552 U CN 206020552U CN 201620907614 U CN201620907614 U CN 201620907614U CN 206020552 U CN206020552 U CN 206020552U
- Authority
- CN
- China
- Prior art keywords
- simulator
- generator
- detected
- electromotor
- input
- 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.)
- Active
Links
- 230000005284 excitation Effects 0.000 title claims abstract description 49
- 238000004088 simulation Methods 0.000 title claims abstract description 35
- 238000001514 detection method Methods 0.000 title claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 230000005611 electricity Effects 0.000 claims description 15
- 238000004364 calculation method Methods 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 10
- 230000002457 bidirectional effect Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000001052 transient effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Landscapes
- Control Of Eletrric Generators (AREA)
Abstract
The utility model discloses a generator excitation regulator emulation detection device relates to electric power transmission engineering technical field, has solved the lower problem of dynamic behavior detection efficiency who detects excitation regulator. The simulation detection device of the generator excitation regulator comprises interface equipment and simulation equipment, wherein the interface equipment is respectively connected with the excitation regulator to be detected and the simulation equipment in a bidirectional mode, and a generator simulation device, a generator end circuit breaker simulation device, a generator end booster transformer simulation device, a power transmission line simulation device and an equivalent network simulation device are arranged in the simulation equipment; the utility model provides a generator excitation regulator emulation detection device is used for the capability test of electric power system to excitation regulator.
Description
Technical field
This utility model is related to electric power transmission field of engineering technology, more particularly to a kind of emulation inspection of automatic excitation adjustor of generator
Survey device.
Background technology
The dynamic property of the field regulator of electromotor has weight for the voltage stability in power plant and whole electrical network
The impact that wants.Especially under the conditions of direct current isolated island, the more conventional friendship of impact of the power plant voltage pulsation to the stability of islanded system
In streaming system, the impact of power plant is more direct and notable, therefore carries out the dynamic property inspection of direct current isolated island automatic excitation adjustor of generator
Survey is very necessary, before actually coming into operation, by studying the control for grasping islanded system under different operating modes with failure condition
Can characteristic processed, check which meet the requirement of stable operation.
Due to network system and power plant's relevant device is various and control characteristic is complicated, it is considered to detect experimental safe factor, such as
The field regulator device on fruit border accesses real electromotor and power system and carries out detection test, cause testing cost compared with
Height, and detection efficiency is very low.
Utility model content
The purpose of this utility model is to provide a kind of automatic excitation adjustor of generator simulation detection apparatus, being capable of low cost height
Efficient detect that the dynamic property of field regulator, safety, the accurate, dynamic property of effective detection automatic excitation adjustor of generator are
The no requirement for meeting system stable operation.
To achieve these goals, this utility model provides following technical scheme：
A kind of automatic excitation adjustor of generator simulation detection apparatus, including interface equipment and emulator, the interface equipment
It is bi-directionally connected with field regulator to be detected and emulator respectively, in the emulator, is provided with electromotor simulator, machine
End chopper simulator, generator terminal booster transformer simulator, transmission line of electricity simulator and equivalent network simulator；
The electromotor simulator and generator terminal chopper simulator are bi-directionally connected with interface equipment, and the generating
Machine simulator is bi-directionally connected with the generator terminal chopper simulator, the generator terminal chopper simulator and the generator terminal liter
Pressure transformer simulator is bi-directionally connected, the generator terminal booster transformer simulator and the two-way company of the circuit emulation device
Connect, described circuit emulation device is bi-directionally connected with the equivalent network simulator.
Preferably, the interface equipment includes kilomegabit High Speed Analog amount output card GTAO, High Speed Analog amount input equipment
GTAI, high-speed figure amount output card GTDO；
The outfan of the electromotor simulator is connected with the input of High Speed Analog amount output card GTAO, the high speed
The outfan of analog output unit GTAO is connected with the first input end of field regulator to be detected；
The outfan of the field regulator to be detected is connected with the input of the High Speed Analog amount input card GTAI, institute
The outfan for stating High Speed Analog amount input card GTAI is connected with the input of the electromotor simulator；
The outfan of the generator terminal chopper simulator is connected with the input of the high-speed figure amount output card GTDO,
The outfan of high-speed figure amount output card GTDO is connected with the second input of field regulator to be detected.
Preferably, generator voltage electric current, exciter current of generator, synchronizing voltage are passed through by the electromotor simulator
Interface equipment sends field regulator to be detected to, and generator terminal circuit breaker position signal is passed through by the generator terminal chopper simulator
Interface equipment sends field regulator to be detected to.
Preferably, the electromotor simulator is the synchronous generator emulation dress that is set up based on real-time digital simulator
Put.
Preferably, described generator terminal chopper simulator is to be imitated based on the generator terminal chopper that real-time digital simulator is set up
True device.
Preferably, the booster transformer simulator is the booster transformer emulation that is set up based on real-time digital simulator
Device.
Preferably, the transmission line of electricity simulator is the transmission line of electricity emulation dress that is set up based on real-time digital simulator
Put, the transmission line of electricity simulator includes circuit sending end mechanism, routine calculation mechanism and circuit receiving end mechanism, routine calculation machine
Structure is bi-directionally connected with circuit sending end structure and circuit receiving end mechanism respectively.
Preferably, the equivalent network simulator is the equivalent net of the power system that is set up based on real-time digital simulator
Network simulator.
Preferably, the field regulator to be detected is provided with the field regulator from shunt excitation.
Preferably, the field regulator to be detected is the field regulator that can receive small signal simulation operation.
This utility model provide automatic excitation adjustor of generator simulation detection apparatus in, due to devise emulator and
Emulator is realized being bi-directionally connected by interface equipment with Excitation Adjustment machine to be detected, and emulator is by electromotor emulation dress
Put, generator terminal chopper simulator, generator terminal booster transformer simulator, transmission line of electricity simulator and equivalent network emulation are filled
Put the actual operating mode for being capable of effective simulated grid such that it is able to field regulator to be detected is detected, is no longer needed
Access real electromotor and power system carry out detection test, and can safely, accurate, effective detection generator excitation
Whether the dynamic property of actuator meets the requirement of system stable operation, reduces testing cost, improves detection efficiency.
In addition, this utility model embodiment field regulator to be detected is the adjustment of field excitation that can receive small signal simulation operation
Device, thus directly can be connected with field regulator to be detected by interface equipment, it is not necessary to which power amplifier just can be real
Now the emulation of field regulator is detected.
Description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, constitutes of the present utility model one
Point, schematic description and description of the present utility model is used for explaining this utility model, does not constitute to of the present utility model
Improper restriction.In the accompanying drawings：
Fig. 1 is the block diagram of automatic excitation adjustor of generator simulation detection apparatus in this utility model embodiment；
Fig. 2 is the connection diagram of interface equipment in this utility model embodiment；
Fig. 3 is connection diagram inside transmission line of electricity simulator in this utility model embodiment.
Reference：10- field regulators, 20- interface equipments, 21- High Speed Analog amount output cards, 22- High Speed Analog amounts
Input card, 23- high-speed figure amount output cards, 30- electromotor simulators, 40- generator terminal chopper simulators, 50- generator terminal liters
Pressure transformer simulator, 60- transmission line of electricity simulators, 70- equivalent network simulators.
Specific embodiment
In order to further illustrate the automatic excitation adjustor of generator simulation detection apparatus of this utility model embodiment offer, below
It is described in detail in conjunction with Figure of description.
Fig. 1 is referred to, the automatic excitation adjustor of generator simulation detection apparatus that this utility model embodiment is provided include interface
Equipment 20 and emulator, the interface equipment 20 are bi-directionally connected with field regulator to be detected 10 and emulator respectively, institute
State
50th, transmission line of electricity simulator 60 and equivalent network simulator 70；
The electromotor simulator 30 and generator terminal chopper simulator 40 are bi-directionally connected with interface equipment 20, and institute
State electromotor simulator 30 to be bi-directionally connected with the generator terminal chopper simulator 40, the generator terminal chopper simulator 40
It is bi-directionally connected with the generator terminal booster transformer simulator 50, the generator terminal booster transformer simulator 50 and the circuit
Simulator 60 is bi-directionally connected, and described circuit emulation device 60 is bi-directionally connected with the equivalent network simulator 70.
Electromotor simulator 30, generator terminal chopper simulator 40 by generator voltage electric current, exciter current of generator,
Synchronizing voltage, generator terminal circuit breaker position signal send field regulator 10 to be detected, adjustment of field excitation to by interface equipment 20
Device device 10 is input into adjustment of field excitation control signal by internal PID control logic and sends generating to according to Generator Status information
Machine simulator 30, realizes control of the field regulator 10 to generator excitation state and set end voltage by such closed loop control
System.
This utility model provide automatic excitation adjustor of generator simulation detection apparatus in, due to devise emulator and
Emulator is realized being bi-directionally connected by interface equipment with Excitation Adjustment machine to be detected, and emulator is by electromotor emulation dress
Put, generator terminal chopper simulator, generator terminal booster transformer simulator, transmission line of electricity simulator and equivalent network emulation are filled
Put the actual operating mode for being capable of effective simulated grid such that it is able to field regulator to be detected is detected, is no longer needed
Access real electromotor and power system carry out detection test, and can safely, accurate, effective detection generator excitation
Whether the dynamic property of actuator meets the requirement of system stable operation, reduces testing cost, improves detection efficiency.
In this utility model embodiment, field regulator to be detected is provided with the field regulator from shunt excitation, and preferably adopts
With for can receive small signal simulation operation field regulator.Field regulator puts 10 for actual field regulator, is provided with certainly
The field regulator of shunt excitation, due to simple structure, without rotary part, operational reliability is high, highly versatile for this system, can be with
Realize the dynamic performance testing of different exciting actuator.In addition, this utility model embodiment field regulator to be detected is to connect
The field regulator of signal imitation operation is zoomed in, can thus be passed through interface equipment and directly be connected with field regulator to be detected
Connect, it is not necessary to which power amplifier can just realize that the emulation to field regulator is detected.
Interface equipment 20 is used for connecting emulator and field regulator 10 to be detected, realizes the information transfer at two ends.
As shown in Fig. 2 interface equipment described in this utility model embodiment includes kilomegabit High Speed Analog amount output card GTAO, High Speed Analog
Amount input equipment GTAI, high-speed figure amount output card GTDO；Interface equipment high speed analog output unit GTAO is with kilomegabit
For the High Speed Analog amount output card of measurement unit, high-speed figure amount output card GTDO is the high speed number with kilomegabit as measurement unit
Word amount output card, High Speed Analog amount input card GTAI are the High Speed Analog amount input cards with kilomegabit as measurement unit, so, this
The high speed referred in embodiment is referred both to kilomegabit as measurement unit.
The outfan of electromotor simulator 30 is connected with the input of High Speed Analog amount output card GTAO 21, high speed mould
The outfan of analog quantity output card GTAO 21 is connected with the first input end of field regulator 10 to be detected, excitation to be detected
The outfan of actuator 10 is connected with the input of High Speed Analog amount input card GTAI 22, High Speed Analog amount input card GTAI
220 outfan is connected with the input of electromotor simulator 30, the outfan of generator terminal chopper simulator 40 with a high speed
The input connection of digital output card GTDO 23, the outfan of high-speed figure amount output card GTDO 23 and excitation to be detected
The second input connection of actuator 10, the input of electromotor simulator 30 is with High Speed Analog amount output card GTAO's 210
Input connects, and generator terminal voltage electric current, exciting current, synchronizing voltage are passed through with small-signal (the 5V-10V signals of telecommunication) form
Passage is exported to the first input end of field regulator.
The outfan of generator terminal chopper simulator 40 is connected with the input of high-speed figure amount output card GTDO 23, high
The outfan of speed digital amount output card GTDO 23 is connected with the input of field regulator to be detected.Generator terminal chopper defeated
Go out end and high-speed figure amount output card GTDO 23 to is sent current generator terminal circuit-breaker status in digital form by passage, at a high speed
The 24V signals of telecommunication are sent as the position signalling of generator terminal chopper by digital output card GTDO by passage, turn through relay
Adopt for actual field regulator 10 after being changed to space nodes signal.
The outfan of field regulator 10 is connected with the input of High Speed Analog amount input card GTAI 22, High Speed Analog amount
Input card GTAI 22 is connected with electromotor simulator 30.Field regulator 10 is by adjustment of field excitation control signal with the electricity of 0-10V
, by channel transfer to High Speed Analog amount input card GTAI 22, High Speed Analog amount input card GTAI 22 is by the excitation for signal form
Adjusting control signal and electromotor simulator 30 being given by passage, electromotor simulator leads to after gathering the 0-10V signals of telecommunication
Cross conversion and become the excitation voltage signal of actual control generator excitation and give generator model, realize generator excitation control.
This utility model is had a try and is provided with interface equipment 20, electromotor simulator 30, generator terminal chopper simulator 40,
Booster transformer simulator 50, transmission line of electricity simulator 60, equivalent network simulator 70, for quiet to field regulator
Step response, no-load characteristic, load characteristic and power system stabilizer, PSS characteristic are tested, and can simulate the different operations of power system
Operating mode and failure condition, detect the dynamic response performance of field regulator field regulator in that case, while detection
Whether its characteristic meets the requirement of stable operation.As equipment is connected by small-signal form, equipment connection is simple, test operation
Safety, test result are accurate.
In this utility model embodiment, electromotor simulator is the synchronization that is set up based on real-time digital simulator (RTDS)
Electromotor simulator, i.e., the synchronous generator simulator that is set up based on RTDS real-time emulation systems, can emulate electromotor
Saturated characteristic and electromotor to a series of generator characteristics such as the inertia of system, damping characteristics, adjustment can be passed through and sent out
Motor internal transient state, secondary transient state unit parameter are realized emulating different model electromotor.
This utility model embodiment generator terminal chopper simulator is the generator terminal chopper simulator that is set up based on RTDS,
The generator terminal chopper simulator that is set up based on RTDS real-time emulation systems, can really simulate generator terminal breaker actuation special
Property.Booster transformer simulator is the booster transformer simulator that is set up based on real-time digital simulator.RTDS is based on
The transformator simulator that real-time emulation system is set up, the operation that can really simulate generator outlet booster transformer are special
Property.
Transmission line of electricity simulator 60 be based on RTDS real-time simulation apparatus set up transmission line simulator, such as Fig. 3
Shown, specifically it is provided with circuit sending end mechanism, routine calculation mechanism, circuit receiving end mechanism, routine calculation mechanism is respectively at circuit
Sending end mechanism, receiving end mechanism are bi-directionally connected, it is possible to achieve the accurate simulation to line characteristic under stable state, transient state.
Preferably, the equivalent network simulator is the equivalent net of the power system that is set up based on real-time digital simulator
The AC system Equivalent Network power source model that network simulator is set up based on RTDS real-time simulation apparatus, can pass through regulation etc.
The resistance value of value power supply is emulated with the network equivalence of the impedance angle different capacities of short circuit of realization.
In the description of above-mentioned embodiment, specific features, structure, material or feature can be at any one or many
Combined in individual embodiment or example in an appropriate manner.
The above, specific embodiment only of the present utility model, but protection domain of the present utility model do not limit to
In this, any those familiar with the art can readily occur in change in the technical scope that this utility model is disclosed
Or replace, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with the power
The protection domain that profit is required is defined.
Claims (10)
1. a kind of automatic excitation adjustor of generator simulation detection apparatus, it is characterised in that including interface equipment and emulator, described
Interface equipment is bi-directionally connected with field regulator to be detected and emulator respectively, is provided with electromotor emulation in the emulator
The emulation of device, generator terminal chopper simulator, generator terminal booster transformer simulator, transmission line of electricity simulator and equivalent network
Device；
The electromotor simulator and generator terminal chopper simulator are bi-directionally connected with interface equipment, and the electromotor is imitative
True device is bi-directionally connected with the generator terminal chopper simulator, and the generator terminal chopper simulator rises buckling with the generator terminal
Depressor simulator is bi-directionally connected, and the generator terminal booster transformer simulator is bi-directionally connected with the circuit emulation device, institute
The circuit emulation device that states is bi-directionally connected with the equivalent network simulator.
2. automatic excitation adjustor of generator simulation detection apparatus according to claim 1, it is characterised in that the interface equipment
Including kilomegabit High Speed Analog amount output card GTAO, High Speed Analog amount input equipment GTAI, high-speed figure amount output card GTDO；
The outfan of the electromotor simulator is connected with the input of High Speed Analog amount output card GTAO, the High Speed Analog
The outfan of amount output card GTAO is connected with the first input end of field regulator to be detected；
The outfan of the field regulator to be detected is connected with the input of the High Speed Analog amount input card GTAI, the height
The outfan of fast analog signal input card GTAI is connected with the input of the electromotor simulator；
The outfan of the generator terminal chopper simulator is connected with the input of the high-speed figure amount output card GTDO, described
The outfan of high-speed figure amount output card GTDO is connected with the second input of field regulator to be detected.
3. automatic excitation adjustor of generator simulation detection apparatus according to claim 1, it is characterised in that the electromotor is imitated
True device sends generator voltage electric current, exciter current of generator, synchronizing voltage to Excitation Adjustment to be detected by interface equipment
Section device, the generator terminal chopper simulator send generator terminal circuit breaker position signal to Excitation Adjustment to be detected by interface equipment
Section device.
4. automatic excitation adjustor of generator simulation detection apparatus as claimed in any of claims 1 to 3, its feature exist
In the electromotor simulator is the synchronous generator simulator that is set up based on real-time digital simulator.
5. automatic excitation adjustor of generator simulation detection apparatus as claimed in any of claims 1 to 3, its feature exist
In described generator terminal chopper simulator is the generator terminal chopper simulator that is set up based on real-time digital simulator.
6. automatic excitation adjustor of generator simulation detection apparatus as claimed in any of claims 1 to 3, its feature exist
In the booster transformer simulator is the booster transformer simulator that is set up based on real-time digital simulator.
7. automatic excitation adjustor of generator simulation detection apparatus as claimed in any of claims 1 to 3, its feature exist
It is the transmission line of electricity simulator that is set up based on real-time digital simulator in, the transmission line of electricity simulator, the power transmission line
Road simulator includes circuit sending end mechanism, routine calculation mechanism and circuit receiving end mechanism, routine calculation mechanism respectively with circuit
Sending end structure and circuit receiving end mechanism are bi-directionally connected.
8. automatic excitation adjustor of generator simulation detection apparatus as claimed in any of claims 1 to 3, its feature exist
In the equivalent network simulator is the equivalent network simulator of the power system that is set up based on real-time digital simulator.
9. automatic excitation adjustor of generator simulation detection apparatus as claimed in any of claims 1 to 3, its feature exist
In the field regulator to be detected is provided with the field regulator from shunt excitation.
10. automatic excitation adjustor of generator simulation detection apparatus as claimed in any of claims 1 to 3, its feature exist
In the field regulator to be detected is the field regulator that can receive small signal simulation operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620907614.2U CN206020552U (en) | 2016-08-18 | 2016-08-18 | Simulation detection device for excitation regulator of generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620907614.2U CN206020552U (en) | 2016-08-18 | 2016-08-18 | Simulation detection device for excitation regulator of generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206020552U true CN206020552U (en) | 2017-03-15 |
Family
ID=58250260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620907614.2U Active CN206020552U (en) | 2016-08-18 | 2016-08-18 | Simulation detection device for excitation regulator of generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206020552U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112131772A (en) * | 2020-09-29 | 2020-12-25 | 哈尔滨工业大学 | Simulation method of non-magnetic conductive layer applied to static characteristic simulation of magnetic latching relay |
| CN114527301A (en) * | 2022-02-28 | 2022-05-24 | 南通贝卡迪电力科技有限公司 | Test bench for excitation regulation test of generator |
-
2016
- 2016-08-18 CN CN201620907614.2U patent/CN206020552U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112131772A (en) * | 2020-09-29 | 2020-12-25 | 哈尔滨工业大学 | Simulation method of non-magnetic conductive layer applied to static characteristic simulation of magnetic latching relay |
| CN112131772B (en) * | 2020-09-29 | 2022-05-10 | 哈尔滨工业大学 | Simulation method of non-magnetic conductive layer applied to static characteristic simulation of magnetic latching relay |
| CN114527301A (en) * | 2022-02-28 | 2022-05-24 | 南通贝卡迪电力科技有限公司 | Test bench for excitation regulation test of generator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106650072A (en) | Detecting system and method for virtual synchronous generator grid connection based on hardware-in-the-loop simulation | |
| CN102208801B (en) | Operation method for safely applying line protection device to wind power station | |
| CN104865847A (en) | Test system and test method for power-in-loop digital and physical hybrid real-time simulation | |
| CN202471887U (en) | Injection type small current grounding line selection device RTDS closed loop test platform | |
| CN102401863A (en) | Closed loop test system for simulating static synchronous compensator and test method thereof | |
| CN104407606A (en) | Wide-area remote test stability test system based on RTDS | |
| CN108008641A (en) | Generator-transformer protection device performance detecting system and method | |
| CN106781929A (en) | A kind of power distribution network relay protection training set and method | |
| CN206460118U (en) | A kind of distribution line short circuit and earth fault analog simulation pilot system | |
| CN205721145U (en) | A kind of dynamic real-time simulator test model device of dual feedback wind power generation system | |
| CN206020552U (en) | Simulation detection device for excitation regulator of generator | |
| CN109240124A (en) | A kind of electric power stability control strategy analogue system | |
| CN103760893A (en) | Closed-loop test system and test method for frequency adaptability of alternating current control protection device | |
| CN106528968B (en) | A kind of automatic dynamic model test method of intelligent substation based on SSD file | |
| CN202221628U (en) | Simulation system for power grid of hybrid transformer substation | |
| CN109782732A (en) | A kind of half circuit control device test platform in kind | |
| CN102790388B (en) | Cascade multi-terminal extra-high voltage direct current simulation system and control protecting method thereof | |
| CN105134506B (en) | A kind of performance test emulation platform of double-feedback aerogenerator group frequency-variable controller | |
| CN204576252U (en) | Dynamic performance testing device for excitation regulator of generator and interface equipment thereof | |
| CN105680469A (en) | Low-voltage ride-through simulation system of wind power generation set and application method of low-voltage ride-through simulation system | |
| CN105203890B (en) | A kind of test platform and method of wind electric converter chopper devices | |
| CN204576253U (en) | Generator speed regulator dynamic performance detection device | |
| CN105022384A (en) | LVRT (Low Voltage Ride Through) closed-loop simulation test method of controller of high-voltage frequency converter of thermal plant | |
| CN108333507A (en) | Generator excitation regulator detecting system | |
| CN206573688U (en) | Generator excitation regulator detecting system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |