CN106226593B - Intelligent active power transmitting device of generator - Google Patents

Intelligent active power transmitting device of generator Download PDF

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Publication number
CN106226593B
CN106226593B CN201610796936.9A CN201610796936A CN106226593B CN 106226593 B CN106226593 B CN 106226593B CN 201610796936 A CN201610796936 A CN 201610796936A CN 106226593 B CN106226593 B CN 106226593B
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current
transmitter
intelligent
group
terminal
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CN106226593A (en
Inventor
李玮
孙晓飞
赵丽杰
赵攀
韩涌
朱国庆
朱宏伟
宋东晨
徐向宙
葛添陈
陆沛帆
陈滔
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Jiangsu Datang International Lvsigang Power Generation Co ltd
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Jiangsu Datang International Lvsigang Power Generation Co ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/001—Measuring real or reactive component; Measuring apparent energy
    • G01R21/002—Measuring real component
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/06—Arrangements for measuring electric power or power factor by measuring current and voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/04—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Control Of Eletrric Generators (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

The invention relates to an intelligent power transmitting device of a generator, which is connected with two groups of different voltage transformers to sample the voltage of the generator terminal, is connected with a current transformer of a protection level and a measurement level to sample the current of the generator terminal, and outputs the active power of the generator obtained by calculation through the device as a current signal of 4-20mA for an automatic power regulating system or a DCS system of the generator. When the transformer is in no-load closing or out-of-zone short circuit fault, the measuring stage CT can be automatically switched into the protection stage CT operation, so that the actual power change is truly reflected, and the unit coordination control system is ensured to be stable and reliable. The device has reliable PT disconnection and CT disconnection judging functions. The invention optimizes the secondary loops of related current, voltage, power supply and the like, greatly improves the reliability and stability of the coordinated control system of the unit and ensures the safe and stable operation of the unit.

Description

Intelligent active power transmitting device of generator
Technical Field
The invention relates to a unit coordination control system of a generator unit, in particular to an intelligent active power transmitting device of a generator.
Background
The unit coordination control system is used for comprehensively controlling the energy and quality of each production link of the coordination unit, and mainly plays a role in stabilizing the unit operation and improving the economy and safety of the unit. Whether the actual power of the unit is consistent with the power grid load requirement reflects the balance relation of energy supply and demand between the unit and an external power grid is an important component in a unit coordination control system. The modern large-scale generator set generally adopts an active power transmitter to measure the actual power of the generator set, which clearly puts higher demands on the quality of the active power transmitter and the reliability of a loop which participate in the coordination control of the generator set.
In order to ensure the stability and reliability of the real power signals of the unit, most power plants generally use three active power transmitters to measure the real power of the unit, and take the median value output by the three transmitters as a final measured value to participate in the coordinated control of the unit, but this is insufficient, and in recent years, several abnormal events occur due to poor characteristics of the power transmitters or faults of a loop, so that some improvements and optimization are necessary on the active power transmitters and the loop participating in the coordinated control.
The three active power transmitters adopted at present are used for measuring the actual power of the unit, the median value output by the three transmitters is taken as a final measured value to participate in the coordination control scheme of the unit, and the following problems exist:
1. when no-load closing and emergency current or short circuit fault outside the system area occurs to other transformers of the system, a large amount of higher harmonics are generated on the secondary side of the CT of the unit measurement level, so that real-time change of the active power of the generator cannot be accurately reflected by the active power transmitter of the unit participating in coordination, and the unit is possibly cut off and coordinated.
2. The three active power transmitters share a group of current transformers and a group of secondary windings of the voltage transformers. When PT disconnection or CT disconnection occurs and the condition that PT secondary wiring loosens or a gate is opened in a small space occurs, the output power of the three transmitters is suddenly changed, the normal operation of a unit coordination control system is affected, the gate of the unit is also caused when the unit is seriously opened, and the wire breakage alarm function is not provided.
3. The current loop is connected with the current transducer, the reactive power transducer, the power factor transducer and the like in series on a current terminal of the active power transducer; the voltage loop is connected with the voltage transducer, the reactive power transducer, the power factor transducer and the frequency transducer in parallel on the voltage terminal of the active power transducer. When the current or voltage loop of the active power transmitter participating in the coordination control of the unit fails or a certain transmitter is to be replaced, the normal work of all transmitters can be influenced, and the normal development of the defect elimination work is very unfavorable.
4. All the three active power transmitters only have one power supply, and are the same power supply and are taken from a UPS (uninterrupted power supply) of the unit. When the power supply loop fails, all transmitters cannot work normally, and the consequence is not considered.
Disclosure of Invention
The invention aims to provide an intelligent active power transmitting device of a generator, which is optimized on secondary circuits such as related current, voltage and power supply, so that the reliability and stability of a coordinated control system of a unit are greatly improved, and the safe and stable operation of the unit is ensured.
In order to achieve the purpose, the technical scheme of the invention is to provide an intelligent active power transmitting device of a generator; the voltage of the intelligent transmitting device is obtained from secondary different windings of a voltage transformer, and voltage loops of the transmitters are connected in parallel at terminal rows respectively; each voltage end (Ua; ub; uc; un) on the terminal row is respectively output by a plurality of parallel lines and correspondingly connected to the corresponding voltage end on each transmitter;
the current of the intelligent transmitting device is taken from two groups of different current transformers; the current loop of the intelligent transmitter is connected with the current channel of any transmitter in series, so that current flows into the corresponding first current end (Ia '; ib'; ic ') of the transmitter which is connected in series through the first contact of each first current end (Ia; ib; ic) on the terminal strip, flows out of the corresponding second current end (Ia'; ib '; ic') of the transmitter which is connected in series, returns to the second contact of the corresponding first current end on the terminal strip, and is connected with the current channel of the other transmitter in series through the third contact of the corresponding first current end and the second contact on the terminal strip, and the current channels of all transmitters are connected in series;
the second current ends which are connected in parallel with each other at the terminal row are respectively connected with fourth contacts which are subordinate to the corresponding first current ends at the terminal row.
Preferably, three active power transmitters participating in coordination control in the intelligent transmitting device are respectively powered by two paths of independent power supplies;
in the power circuit of the intelligent transmitting device, any one power end (L; N) at the terminal row is respectively output by a plurality of parallel circuits and correspondingly connected to the corresponding power end of each active power transmitter.
Preferably, the intelligent transmitting device is connected with two groups of different voltage transformers to sample the generator terminal voltage, and connected with the current transformers of the protection level and the measurement level to sample the generator terminal current.
Preferably, the intelligent transmitter is provided with a sampling switching unit, a control signal for driving the intelligent transmitter to sample current from the current transformer of the measuring stage is provided during normal operation or fault removal, and a control signal for driving the intelligent transmitter to sample current from the current transformer of the protecting stage is provided during no-load closing or external short-circuit fault of the transformer.
Preferably, the intelligent transmitting device represents the calculated active power of the generator as a current signal of 4-20mA and outputs the current signal to an automatic power regulating system or a DCS system of the generator.
Preferably, the intelligent transmitter device is provided with four paths of output channels and a fault switching unit of the output channels.
Preferably, the intelligent transmitting device is provided with a disconnection switching unit and a disconnection switching alarm unit;
the disconnection switching unit is switched to operate with the other group of voltage transformers which are not disconnected when one group of voltage transformers is disconnected, and is switched to operate with the other group of current transformers which are not disconnected when one group of current transformers of the protection level and the measurement level is disconnected.
Preferably, the intelligent transmitting device is provided with an abnormal alarming loop and a power-off alarming loop, and an alarming signal is sent to a DCS system connected with the intelligent transmitting device.
Preferably, the intelligent transmitting device is provided with a GPS time setting loop for providing accurate device time, message and wave recording time coordinates.
Compared with the prior art, the intelligent active power transmitting device of the generator has the advantages that:
1) In normal operation, the device is sampled by the measuring stage CT, and the precision is high. When the transformer is in no-load closing or out-of-zone short circuit fault, the measuring stage CT is automatically switched into the protection stage CT to operate, so that the actual power change is truly reflected, and the unit coordination control system is ensured to be stable and reliable. When the fault is removed, the device can automatically switch back to the measurement level CT, so that accurate measurement in normal operation is ensured.
2) The device has reliable PT disconnection and CT disconnection judging functions. When PT or CT disconnection occurs, the power transmitter is automatically switched to the other group of PT and CT which are not disconnected, and the problem of power distortion after disconnection occurs in the traditional power transmitter is solved. Meanwhile, relevant alarm points can be sent out to the background, so that operators can find out abnormality in time.
3) The device of the invention has the advantages of transparentization of the action process of the control function, complete information record and complete accident recall information. The fault recorder has the fault recording function and can record the voltage, current and power waveforms when faults occur.
4) The device provided by the invention is provided with a two-way power supply and four-way output channels, and when one-way power supply fails, the normal operation of the transmitter is not affected; when one output channel is damaged, the other output channel can be replaced. The device has the power failure alarm function, and the reliability of equipment is greatly improved.
5) The device is additionally provided with a device abnormality alarm and device power failure alarm loop, and sends an alarm signal to the DSC for monitoring by operators. And a GPS time setting loop is additionally arranged, so that the time of the device is accurate, the time coordinates of the message and the wave recording are accurate, and the abnormal fault analysis is convenient.
Drawings
FIG. 1 is a schematic diagram of actual power waveforms of a generator when simulating a three-phase ground transient fault of a line, after the application of the present invention.
FIG. 2 is a waveform of power output from the intelligent power transmitter when the three-phase ground fault of the line is simulated after the present invention is applied.
FIG. 3 is a schematic diagram of wiring prior to loop optimization of an intelligent transmitter.
FIG. 4 is a schematic diagram of wiring after loop optimization of the intelligent transmitter of the present invention.
FIG. 5 is a wiring diagram of a channel of the intelligent transmitter of the present invention.
Detailed Description
The invention provides an intelligent power transmitting device for a generator, which is connected with generator terminal voltage (two different groups of PT), samples generator terminal current (protection level and measurement level), calculates the active power of the generator by the device, and outputs the active power with 4-20mA current for an automatic power regulating system and a DCS (distributed control system) of the generator.
When no-load closing and emergency current or short circuit fault outside the system area occurs to other transformers of the system, a large amount of higher harmonics are generated on the secondary side of the CT of the unit measurement level, so that real-time change of the active power of the generator cannot be accurately reflected by the active power transmitter of the unit participating in coordination, and the unit is possibly cut off and coordinated. And the protection level CT has the advantages of good transient characteristics, high response speed, high sampling precision and strong anti-interference capability, and can truly reflect the actual power change.
Therefore, in normal operation, the power transmitting device is sampled by the measuring level CT, and the accuracy is high. When the transformer is in no-load closing or out-of-zone short circuit fault, the power transmitting device is automatically switched from the measuring stage CT to the protection stage CT for operation, so that actual power change is truly reflected, and the unit coordination control system is ensured to be stable and reliable. When the fault is removed, the device can automatically switch back to the measurement level CT, so that accurate measurement in normal operation is ensured.
FIG. 1 is an actual power waveform of a generator during an analog line three-phase ground transient fault. In fig. 1, the position of the scale T is the moment when the fault occurs, the three-phase voltage decreases, the three-phase current increases, and the output active power shown by the last curve decreases substantially, which is close to zero. And after the fault is removed, the reclosing of the circuit is successful, and the voltage, the current and the active power are recovered to be normal.
FIG. 2 is a waveform of power output from the intelligent power transmitter during an analog line three-phase ground transient fault. Therefore, in the fault occurrence process, the power waveform output by the transmitter is almost consistent with the change trend of the actual power, and the transmitter is proved to truly and accurately reflect the real-time change of the active power of the generator without distortion and lead to the unit cutting coordination.
The device has reliable PT disconnection and CT disconnection judging functions. When PT or CT disconnection occurs, the power transformer is automatically switched to the other group of PT (voltage transformer) and CT (current transformer) which are not disconnected, and the problem of power distortion after disconnection occurs in the traditional power transmitter is solved. Meanwhile, an alarm point related to PT switching can be sent out to the background, and a report is recorded, so that operators can find out abnormality in time.
FIG. 5 is a schematic diagram of the channel wiring of the intelligent transmitter of the present invention, equipped with voltage terminals Ua1/Ub1/Uc1/Un1, ua2/Ub2/Uc2/Un2; protection stage current terminals Ia/Ib/Ic, ia '/Ib '/Ic '; the test stage current terminals mIa/mIb/mIc, mIa '/mIb '/mIc '. Furthermore, the device is provided with a two-way power supply and four-way output channels; when one power supply fails, the normal operation of the transmitter is not influenced; when one output channel is damaged, the other output channel can be replaced. The device has the power failure alarm function, and the reliability of equipment is greatly improved. In addition, ports such as PT disconnection, CT disconnection, device locking, device alarm and the like are also provided, and detailed description is omitted with reference to the example of fig. 5.
Referring to fig. 3 and 4, the loop optimization of the novel intelligent transmitting device of the invention comprises:
1) And (5) optimizing a voltage loop. The voltage of the active power transmitter is taken from the secondary different windings of the voltage transformer, and meanwhile, in order to facilitate daily defect eliminating work, voltage loops of equipment such as the voltage transmitter, the frequency transmitter, the active power transmitter and the like are connected in parallel at a terminal row, so that the voltage loops of all the transmitters are relatively independent, and the normal work of other transmitters is not influenced when the defect is eliminated. For example, in the first group of voltage loops, the Ua ends of the terminal blocks are output in two parallel paths, and are respectively connected to the Ua1 ends of the transmitters P1 and P2 (different from the wiring scheme that one path of the Ua ends at the terminal blocks is connected to the Ua end of P1 and then connected from the Ua end of P1 to the Ua end of P2); the Ub, uc, un ends are similar to the connections of the Ub1, uc1, un1 ends of P1 and P2. And, through another group of Ua/Ub/Uc/Un ends at the terminal row, the second group of voltage loops connected with Ua2/Ub2/Uc2/Un2 ends at the P1 and P2 can also pass through the analogy.
2) And (5) optimizing a current loop. The current transformer is opened in a secondary forbidden way, the transformation ratio of the current transformer at the outlet of the generator is large for a large-scale unit, and if the phenomenon of CT secondary open circuit exists, load reduction or shutdown treatment is required. Therefore, in order to facilitate the daily defect eliminating work, the current loop must return to the terminal strip after passing through one transmitter, and then be led out from the terminal strip to be connected to another transmitter, so as to ensure that the current loops of the transmitters are independent. When one transmitter fails, the current loop of the transmitter is short-circuited from the terminal strip, so that the normal operation of other transmitters is not influenced, and the safety and convenience are realized.
For example, in the first group of current loops, the first contact of the Ia end at the terminal strip is connected to the Ia end of P1, then the second contact of the Ia end at the terminal strip is returned from the Ia ' end of P1, then the third contact of the Ia end connected with the second contact at the terminal strip is connected to the Ia end of P2, and then the fourth contact of the Ia end at the terminal strip is returned from the Ia ' end of P2 (different from the original wiring scheme that only one contact is at the Ia end at the terminal strip and the Ia ' end of P1 is directly connected to the Ia end of P2); ib. The connection conditions of the Ib ', ic and Ic' ends are similar. Fourth contacts of the terminals Ia, ib and Ic are correspondingly connected to the terminals Ia ', ib and Ic' of the terminal row; the Ia ', ib ', ic ' ends at the terminal rows are connected with each other. The second set of current loops, which are wired to the mIa/mIb/mIc/mIa '/mIb'/mIc 'terminals at P1 and P2, through the other set of terminals at the terminal block, ia/Ib/Ic'/Ib '/Ic', can also be analogized to the above.
3) And optimizing a power supply loop. The three active power transmitters which participate in coordination control are powered by two paths of independent power supplies and are connected in parallel at the terminal strip, so that the smooth and safe development of daily defect elimination work is facilitated. For example, in the first group of power supply circuits, the L end of the terminal strip is connected to the L1 ends of P1 and P2 respectively (different from the original wiring scheme that one path of the L end at the terminal strip is connected to the L end of P1 and then connected to the L end of P2 from the L end of P1); the N terminal is similar to the N1 terminal line of P1 and P2. And, through another group of L/N ends at the terminal row, the second group of power supply loops connected with the L2/N2 ends at the P1 and P2 can also pass through the analogy.
When the novel intelligent transmitting device is applied, attention should be paid to the fact that after the current loop, the voltage loop and the power supply loop of the active power transmitter which participate in the coordination control of the unit are optimized, the active power transmitter can be formally put into operation only after direct resistance test, insulation test and sampling inspection are carried out on the corresponding loops, PT short circuit or CT open circuit caused by wrong wiring of the loops is avoided, and monitoring of the loops is enhanced after equipment is put into operation.
When the intelligent transmitter of the generator is adopted, the error precision of the transmitter is also checked in detail, each switching function, alarming function and time setting function of the detector are checked, and the detector can be put into operation formally after checking each parameter and channel correctly with the DCS background.
While the present invention has been described in detail through the foregoing description of the preferred embodiment, it should be understood that the foregoing description is not to be considered as limiting the invention. Many modifications and substitutions of the present invention will become apparent to those of ordinary skill in the art upon reading the foregoing. Accordingly, the scope of the invention should be limited only by the attached claims.

Claims (9)

1. An intelligent active power transmitting device of a generator is characterized in that,
the voltage of the intelligent transmitting device is obtained from secondary different windings of a voltage transformer, and voltage loops of the transmitters are connected in parallel at terminal rows respectively; each voltage terminal Ua, ub, uc, un on the terminal row is respectively output by a plurality of parallel lines and correspondingly connected to the corresponding voltage terminal on each transmitter;
the current of the intelligent transmitting device is taken from two groups of different current transformers, namely the intelligent transmitting device is respectively connected with the current transformers of the protection level and the measurement level to sample the current of the machine end;
the transmitter comprises a first transmitter and a second transmitter, wherein the first transmitter and the second transmitter are respectively provided with a first protection level current end, a second protection level current end, a first measurement level current end and a second measurement level current end;
the current sensor of the corresponding protection stage is provided with a first group of current terminals, and the current transformer of the corresponding measurement stage is provided with a second group of current terminals; the current terminals of each group correspond to each phase of current, and comprise a first current end of a terminal block with four contacts and a second current end of the terminal block;
the first group of current loops of the intelligent transmitting device are connected in series with the current channels of the first transmitter through the first group of current terminals which are arranged on the terminal strip and correspond to each phase of current respectively, so that current flows into the first protection-level current end on the first transmitter correspondingly through the first contact point subordinate to the first current end of the terminal strip of the first group, flows out of the second protection-level current end on the first transmitter and returns to the second contact point subordinate to the first current end of the terminal strip of the first group;
continuing to connect the current channel of the second transmitter in series through the first group of current terminals on the terminal block: the current flows into the first protection-level current end on the second transmitter correspondingly through the third contact point connected with the second contact point under the first current end of the first group of terminal blocks, flows out of the second protection-level current end on the second transmitter and returns to the fourth contact point under the first current end of the first group of terminal blocks;
the second current terminals of the terminal rows corresponding to the three-phase currents and connected with each other at the terminal rows are respectively connected with the fourth contacts corresponding to the currents of each phase and subordinate to the first current terminals of the terminal rows of the second group;
the second group of current loops of the intelligent transmitting device are connected in series with the current channels of the first transmitter through the second group of current terminals which are arranged on the terminal bars and correspond to each phase of current respectively, so that current flows into the first measuring-stage current terminals on the first transmitter correspondingly through the first contacts of the first current terminals of the second group of terminal bars and flows out of the second measuring-stage current terminals on the first transmitter correspondingly, and returns to the second contacts of the first current terminals of the second group of terminal bars;
continuing to connect the current channels of the second transmitter in series through the second group of current terminals on the terminal block: the current flows into the first measuring stage current end on the second transmitter correspondingly through the third contact point connected with the second contact point under the first current end of the terminal block of the second group, flows out of the second measuring stage current end on the second transmitter and returns to the fourth contact point under the first current end of the terminal block of the second group;
and the second current ends of the terminal rows, which correspond to three-phase currents and are connected with each other at the terminal rows, are respectively connected with fourth contacts which correspond to the currents of all phases and are subordinate to the first current ends of the terminal rows of the second group.
2. The intelligent power transmitting device of the generator according to claim 1, wherein,
three active power transmitters participating in coordination control in the intelligent transmitting device are respectively powered by two paths of independent power supplies;
in the power circuit of the intelligent transmitter, any one power end L, N at the terminal strip is respectively output by a plurality of parallel lines and correspondingly connected to the corresponding power end of each active power transmitter.
3. The intelligent power transmitter of claim 1, wherein the intelligent power transmitter is connected to two different voltage transformers to sample the generator terminal voltage.
4. The intelligent power transmitting device for generator according to claim 3, wherein,
the intelligent transmitter is provided with a sampling switching unit, a control signal for driving the intelligent transmitter to sample current from a current transformer of a measuring stage is provided during normal operation or fault removal, and a control signal for driving the intelligent transmitter to sample current from a current transformer of a protection stage is provided during no-load closing or external short-circuit fault of the transformer.
5. The intelligent power transmitting device of the generator according to claim 1, wherein,
the intelligent transmitting device represents the calculated active power of the generator as a current signal of 4-20mA and outputs the current signal to an automatic power regulating system or a DCS system of the generator.
6. The intelligent power transmitter of claim 5, wherein the intelligent power transmitter has four output channels and a fail-over unit for the output channels.
7. The intelligent power transmission device for the generator active power according to claim 3, wherein the intelligent transmission device is provided with a disconnection switching unit and a disconnection switching alarm unit;
the disconnection switching unit is switched to operate with the other group of voltage transformers which are not disconnected when one group of voltage transformers is disconnected, and is switched to operate with the other group of current transformers which are not disconnected when one group of current transformers of the protection level and the measurement level is disconnected.
8. The intelligent power transmitting device of the generator according to claim 1, wherein,
the intelligent transmitting device is provided with an abnormal alarming loop and a power failure alarming loop, and transmits alarming signals to a DCS system connected with the intelligent transmitting device.
9. The intelligent power transmitting device of the generator according to claim 1, wherein,
the intelligent transmitting device is provided with a GPS time setting loop and provides accurate device time, message and wave recording time coordinates.
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