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Summary

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TECHNICAL FEATURES

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BLOCK DIAGRAM

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REFERENCE

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VOLTAGE ADJUSTMENT VIA

VAD

POTENTIOMETER

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VOLTAGE ADJUSTMENT VIA ANALOG INPUT

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VOLTAGE ADJUSTMENT VIA DIGITAL INPUT

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PI CONTROLLER

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POWER CIRCUIT

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PROTECTIONS

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GENERATOR OVERVOLTAGE PROTECTION

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EXCITATION OVERCURRENT PROTECTION

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ARMATURE OVERCURRENT PROTECTION

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ROTATING DIODE FAULT

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LIMITERS

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U/f LIMITER

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FIELD CURRENT LIMITER

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LOSS OF SENSING VOLTAGE

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ALARMS

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MAXIMUM FIRING ANGLE

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MICROCONTROLLER FAILURE

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VIRTUAL SWITCH

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PARALLEL OPERATION WITH REACTIVE COMPENSATION

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PHISICAL PROTECTIONS

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PROTECTION FUSE FOR EXCITATION FIELD

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FUNCTION TRIMPOTS

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IDENTIFICATION AND PURCHASE ORDER

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IDENTIFICATION AND PURCHASE ORDER

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HOW TO CONNECT TO THE GENERATOR

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DESCRIPTION OF GENERATOR CONNECTION TERMINALS

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CONNECTION TO THE GENERATOR WITHOUT AUXILIARY WINDING

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CONNECTION TO THE GENERATOR OPERATING IN (160 to 300Vca)

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CONNECTION TO THE GENERATOR OPERATING IN (330 to 600Vca)

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CONNECTION TO THE GENERATOR WITH AUXILIARY WINDING

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CONNECTION DIAGRAM FOR PARALLELISM OF GENERATORS

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EQUIPMENTS SUPPLIED WITH THE REGULATOR (STANDARD KIT)

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FIRST REGULATOR INSTALLATION

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Содержание GRTD-TH3

Страница 1: ...pegasustech com br Street Marechal Castelo Branco 784 Centro Sul Schroeder SC Brazil 55 47 3374 6301 MPBR 07 00002 Rev 04 Digital Voltage Regulator GRTD TH3 Installation Operation and Maintenance Man...

Страница 2: ...date the information contained in these new revisions However at any time the customer may request updated material that will be provided to you at no charge In order to spread and expand the market P...

Страница 3: ...voltages may be present even after power is disconnected and always keep them insulated from the rest of the main generator control circuit Check item screen printing symbology of this manual to disco...

Страница 4: ...e is no direct effect of the sun s rays as well as rain wind and other inclemencies in order to guarantee the maintenance of its functional characteristics After the regulator is properly packed and a...

Страница 5: ...enclosure grounded or not so that the terminals are inaccessible where there is no opening that allows access to the equipment and access must be done by means of a tool Philips wrench etc remembering...

Страница 6: ...F THE PAGE At the edges of each page the reader can have a quick reference of the main subject that is being dealt with in it without it being necessary to use the indexes to locate the desired inform...

Страница 7: ...GLE 18 MICROCONTROLLER FAILURE 18 VIRTUAL SWITCH 18 PARALLEL OPERATION WITH REACTIVE COMPENSATION 18 PHISICAL PROTECTIONS 19 PROTECTION FUSE FOR EXCITATION FIELD 19 FUNCTION TRIMPOTS 20 IDENTIFICATION...

Страница 8: ...SHUTDOWN 26 BENCH TEST DIAGRAM 27 DIMENSIONAL 28 DIMENSIONAL OF THE VOLTAGE REGULATOR mm 28 M DULO DE CONECTIVIDADE IoT 28 CREEN PRINTING SYMBOLOGY 29 FIRST USE 29 DESCRIPTION OF TERMINALS AND CONNECT...

Страница 9: ...mperature are low as well as the coefficient of thermal expansion Most importantly its characteristics are not affected by electrical variations The equipment is configurable via the adjustment potent...

Страница 10: ...inamic response adjustable by trimpot Stb 8 500ms Working temperature range 40 C 60 C Storage temperature range 20 C 40 C Maximum relative humidity operation and storage 0 80 Pollution degree 3 Protec...

Страница 11: ...www pegasustech com br 10 BLOCK DIAGRAM Figure 1 Block diagram...

Страница 12: ...330 to 600Vac The clockwise increases the voltage reference and counterclockwise decreases the reference VOLTAGE ADJUSTMENT VIA ANALOG INPUT Variation of 15 15 on the reference voltage 10 Vcc 10 Vcc...

Страница 13: ...calculation cycle of the control is connected to the operating frequency of the machine The purpose of the controller is to maintain the null error the difference between the measured voltage negative...

Страница 14: ...www pegasustech com br 13 POWER CIRCUIT The power circuit is show in figure bellow Figure 6 Power Circuit Figure 5 Machine output varying the stability parameters...

Страница 15: ...made with resistive and inductive load controlling the tripping to obtain the maximum field currents PROTECTIONS Protections act directly on the virtual key that is virtually at the output of the con...

Страница 16: ...ction Reference 15 above rated CT current Time for protection action 2 seconds Signaling Alarm Led constantly lit in Yellow ROTATING DIODE FAULT The regulator is constantly measuring the fluctuations...

Страница 17: ...r requires more excitation to maintain the voltage and to avoid this actuates the limit U f The U f block is shown in figure 9 A sa da do bloco U f envia o erro para o controle PI Frequency of operati...

Страница 18: ...r depending on the configuration of the PI control Excitation Overcurrent 12 5 A Limit of excitation overcurrent 10 A Overcurrent limit time Obtained from the current curve Signaling Alarm Led constan...

Страница 19: ...MPENSATION When the generator is operating synchronously to a network or other generator it is said to be operating in Parallel In this mode of operation the regulator can no longer keep the output vo...

Страница 20: ...ing feature to protect the equipment The fus eis sized according to the excitation current Operation in 3A is recommended to use the 3 15A fuse Operation in 5A recommended to use the 5A fuse Operation...

Страница 21: ...down the system response which ensures zero error bringing control to a region of stability The setting of the trimpot Stb is done with the generator running empty no load with the trimpot Stb all cl...

Страница 22: ...nction Connector Function E3 4 Common reference for power supply and sensing voltage 3 Power supply E1 Reference voltage input sensing 160 300 Vca E2 Reference voltage input sensing 330 600 Vca F Nega...

Страница 23: ...to the installation manual for the nominal reference voltage The supply voltage can t exceed the maximum voltage specified by the product If the reference voltage is note qual to the output voltage o...

Страница 24: ...for the nominal reference voltage The supply voltage can t exceed the maximum voltage specified by the product If the reference voltage is note qual to the output voltage of the generator do not make...

Страница 25: ...level of the regulator Attention Before connecting the regulator to the generator refer to the installation manual for the nominal reference voltage The supply voltage can t exceed the maximum voltag...

Страница 26: ...ge of 160 to 300Vca 1 Synchronous contactor controlled by a synchronoscope For other connections consult PEGASUS Before making the connections check that the rated voltage of the equipment corresponds...

Страница 27: ...llel mode TC connected set the Drp potentiometer fully counterclockwise to disable the reagent compensation 5 Switch on the ignition key There will be an initial priming and will enter the control gra...

Страница 28: ...ll gradually increase clockwise from a certain point the lamp will light up gradually this is where the reference trimpot will be slightly above the mains voltage With the near spot the reference foun...

Страница 29: ...e anomalies for example in brushless generators burning rotating diodes this product can detect problems related to the rotating diodes or other problems issuing a notification to the person in charge...

Страница 30: ...rent Watch out Risk of shock Don t touch Watch out Voltage Don t touch Watch out Hot surface Don t touch Note Temperatures for some internal equipment components can reach 150 C FIRST USE The GRTD TH3...

Страница 31: ...or S2 pole of CT F e F Connetion to generator field Freq Jumper 50 60 Hz TC Jumper 1 5 A SHUTDOWN With the correct U F protection configured the generator is switched off with the shutdown of the prim...

Страница 32: ...nt is responsible for this type of maintenance As described in the first paragraph maintenance may be carried out by qualified personnel on the voltage regulator and cleaning of the equipment as descr...

Страница 33: ...uipment must not have been subjected to lightning surges or overcurrents above specified limits 2 6 Repairs and or modifications to the equipment if performed must be carried out by persons profession...

Страница 34: ...low residual voltage With the regulator on use external battery 12Vdc to force excitation Terminals F and F inverted Invert F and F Set reference voltage too low Set the voltage reference to the nomin...

Страница 35: ...www pegasustech com br 34...

Страница 36: ...www pegasustech com br 35 www pegasustech com br Street Marechal Castelo Branco 784 Centro Sul Schroeder SC Brazil 55 47 3374 6300...

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