RO126008A2 - Electrical control equipment for drilling installations with ac electrical motors which is supplied from low and medium voltage power sources - Google Patents
Electrical control equipment for drilling installations with ac electrical motors which is supplied from low and medium voltage power sources Download PDFInfo
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- RO126008A2 RO126008A2 ROA200900361A RO200900361A RO126008A2 RO 126008 A2 RO126008 A2 RO 126008A2 RO A200900361 A ROA200900361 A RO A200900361A RO 200900361 A RO200900361 A RO 200900361A RO 126008 A2 RO126008 A2 RO 126008A2
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Echipament electric de comanda si reglare pentru instalații de foraj cu motoare electrice de curent alternativ alimentat de la surse de joasa sau medie tensiuneElectrical control and adjustment equipment for drilling installations with alternating current electric motors powered from low or medium voltage sources
Invenția se refera la un echipament electric de comanda si reglare pentru instalații de foraj cu motoare electrice de curent alternativ acționate cu turatie variabila cu invertoare de putere alimentate de la linii de medie tensiune sau de la grupuri diesel generatoare care furnizează energie electrica de medie sau joasa tensiune.The invention relates to an electrical control and control equipment for drilling installations with alternating current electric motors operated with variable speed with power inverters powered from medium voltage lines or from generator diesel groups that provide medium or low power voltage.
Echipamentul electric de comanda si reglare pentru instalații de foraj cu motoare electrice de curent alternativ poate fi alimentat de la doua linii electrice de medie tensiune sau de la mai multe grupuri diesel generatoare de joasa sau medie tensiune care furnizează energia electrica necesara unor redresoare si invertoare de putere pentru acționarea cu turatie variabila a motoarelor de ca utilizate in instalațiile de foraj.The electrical control and control equipment for drilling installations with alternating current electric motors can be supplied from two medium voltage power lines or from several low or medium voltage generator diesel groups that provide the electrical power needed for rectifiers and inverters. power for variable speed actuation of AC motors used in drilling installations.
Sunt cunoscute echipamente electrice de comanda si reglare pentru instalații de foraj cu motoare electrice de curent alternativ care sunt alimentate de la surse de joasa sau medie tensiune , care prezintă dezavantajul ca nu asigura 3 surse de alimentare de medie sau joasa tensiune la intrare si nici o comutare a alimentarii echipamentelor electrice de acționare cu turatie variabile a motoarelor electrice de ca de la una din cele trei surse.Known electrical control and control equipment for drilling installations with alternating current electric motors that are powered from low or medium voltage sources, which has the disadvantage that it does not provide 3 medium or low voltage power supplies at the inlet and no switching the power supply of variable speed electric motors of AC motors from one of the three sources.
Echipamentul electric de comanda si reglare pentru instalații de foraj cu motoare electrice de curent alternativ alimentat de la surse de joasa sau medie tensiune elimina dezavantajele de mai sus prin aceea ca 1 pentru a asigura energia electrica pentru comanda si reglarea turației motoarelor electrice de curent alternativ utilizate in instalațiile de foraj se alimentează cu energie electrica de curent alternativ trifazat de la o rețea de alimentare de medie tensiune prin intermediul unei statii de medie tensiune care conține o celula de medie tensiune de intrare care are bornele de intrare conectate la aceasta rețea , iar bornele de ieșire conectate la un sistem trifazat de bare de curent alternativ de medie tensiune A , la care se leaga bornele de intrare ale unei celule de măsură de medie tensiune si bornele de intrare ale unor celule de medie tensiune pentru transformatoare , prin care se alimentează înfășurările primare ale unor transformatoare alimentare redresoare dintr-o stafie de transformatoare si ale căror înfășurări secundare sunt conectate prin niște intreruptoare la un sistem trifazat de bare de curent alternativ de joasa tensiune B dintr-o statie de comanda si reglare turatie motoare; de la sistemul de bare B se alimentează cu tensiune de curent alternativ niște redresoare de putere care energizeaza un sistem de bare de curent continuu C din statia de la care se alimentează niște invertoare.The electrical control and control equipment for drilling rigs with alternating current electric motors powered by low or medium voltage sources eliminates the above disadvantages by having 1 to provide the electric power for controlling and adjusting the speed of the alternating current electric motors used. in the drilling installations it is supplied with three-phase alternating current electricity from a medium voltage supply network through a medium voltage station containing a medium voltage input cell having the input terminals connected to this network, and the terminals Outputs connected to a three-phase system of medium voltage AC voltage bars A, to which the input terminals of a medium voltage measuring cell are connected and the input terminals of some medium voltage cells for transformers, through which the windings are fed primary of rectifier power transformers from a line of transformers and whose secondary windings are connected by means of switches to a three-phase system of low-voltage alternating current bars B from a motor speed control and control station; from the bar system B, AC rectifiers supplying a DC power system C from the station from which some inverters are supplied are supplied with AC voltage.
o-Z O O 9 - O O 361 - 0 8 -05- 2009 utilizate pentru reglarea turației unor motoare electrice de curent alternativ utilizate pentru antrenarea unor pompe de noroi, a unor motoare electrice de curent alternativ pentru antrenarea unui troliu , a unui motor electric de curent alternativ pentru masa rotativa . Echipamentul electric de comanda si reglare pentru instalații de foraj cu motoare electrice de curent alternativ alimentat de la surse de joasa sau medie tensiune , conform invenției, prezintă următoarele avantaje:oZ OO 9 - OO 361 - 0 8 -05- 2009 used to regulate the speed of alternating current electric motors used for driving mud pumps, alternating current electric motors for driving a winch, alternating current electric motor for rotary table. The electrical control and control equipment for drilling installations with alternating current electric motors powered from low or medium voltage sources, according to the invention, has the following advantages:
- creste eficienta si siguranța in exploatare a instalațiilor de foraj, prin facilitățile pe care le oferă in alimentarea de la mai multe surse de energie de joasa sau medie tensiune care pot fi conectate la echipament- increases the efficiency and safety in operation of the drilling rigs, through the facilities they offer in the supply from several low or medium voltage power sources that can be connected to the equipment
- schimbarea rapida, prin acționarea unor intreruptoare, a structurii schemei de putere pentru alimentarea cu energie a motoarelor electrice- rapid change, by the use of switches, of the structure of the power scheme for the power supply of electric motors
- izolarea si ocolirea unor parti din circuitele de alimentare de putere in caz de defect Se da in continuare , un exemplu de realizare a invenției, in legătură cu fig 1 si 2 care reprezintă:- isolation and circumvention of parts of the power supply circuits in the event of a fault An example of the invention is given below, in connection with figs 1 and 2 which represents:
- fig 1, schema de principiu a echipamentului electric de comanda si reglare pentru instalații de foraj cu motoare electrice de curent alternativ alimentat de la surse de joasa si medie tensiune- Fig. 1, the principle diagram of the electrical control and adjustment equipment for drilling installations with alternating current electric motors powered from low and medium voltage sources
- fig 2, schema de principiu a echipamentului electric de comanda si reglare pentru instalații de foraj cu motoare electrice de curent alternativ alimentat de la surse de medie tensiune- Fig. 2, the principle diagram of the electrical control and adjustment equipment for drilling installations with alternating current electric motors powered from medium voltage sources
Echipamentul electric de comanda si reglare pentru instalații de foraj cu motoare electrice de curent alternativ alimentat de la surse de joasa sa medie tensiune, conform invenției (fig1), are in alcătuirea sa o statie de medie tensiune 1 , niște grupuri diesel generator de medie tensiune 2,3,4,5,6 o statie sincronizare si cuplare generatoare 7, doua statii de transformatoare 8 si 9, o statie de distribuție energie la consumatori auxiliari foraj 10, o statie comanda reglare turatie motoare 11The electrical control and control equipment for drilling installations with alternating current electric motors powered by its medium voltage sources, according to the invention (fig1), has in its composition a medium voltage station 1, some medium voltage generator diesel groups. 2,3,4,5,6 a synchronization station and generator coupling 7, two transformer stations 8 and 9, a power distribution station to the auxiliary consumers 10, a control station adjusting engine speed 11
Echipamentul este astfel structurat incat sistemele de acționare cu turatie variabila a motoarelor electrice ale instalației de foraj (motoarele de la pompele de noroi, motoarele de la troliu , motoarele de la masa rotativa etc) si statia de distribuție a energiei la consumatorii auxiliari 10 ai instalației de foraj se pot alimenta , de la grupurile diesel generator 2,3,4,5 sau de la una din cele doua rețele de alimentare de medie tensiune 12 sau 13 care au , de exemplu o tensiune de 3x6 kV, 50Hz.The equipment is structured so that the variable speed actuation systems of the electric motors of the drilling plant (mud pump motors, winch motors, rotary table motors, etc.) and the power distribution station to the auxiliary consumers 10 of the installation of the drilling can be fed, from the 2,3,4,5 generator diesel groups or from one of the two medium voltage supply networks 12 or 13 which have, for example, a voltage of 3x6 kV, 50Hz.
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Statia de medie tensiune 1 are rolul de conectare a echipamentului la cele doua rețele de alimentare de medie tensiune de 6KV prin celulele de medie tensiune de intrare si de a distribui energia electrica la doua statii de transformatoare 8 si 9 .The medium voltage station 1 has the role of connecting the equipment to the two medium voltage supply networks of 6KV through the medium voltage input cells and to distribute the electricity to two transformer stations 8 and 9.
Statia de medie tensiune 1 are in alcătuirea sa aparatajul necesar pentru a conecta echipamentul la tensiunea de alimentare , furnizata de una din cele doua rețele de alimentare de medie tensiune 12 si 13. In acest scop se utilizează celulele de medie tensiune de intrare 14 respectiv 15.The medium voltage station 1 has in its structure the equipment necessary to connect the equipment to the supply voltage, provided by one of the two medium voltage supply networks 12 and 13. For this purpose, the medium voltage input cells 14 and 15 respectively are used. .
Celula de medie tensiune de intrare 14 ,care se conectează echipamentul la rețeaua de alimentare de medie tensiune 12 conține un intreruptor principal, un separator cu funcțieThe medium voltage input cell 14, which connects the equipment to the medium voltage supply network 12, contains a main switch, a function separator
dubla de separare si de punere la masa si un transformator de măsură curent.separation and grounding double and a current measuring transformer.
Aceasta celula alimentează un sistem trifazat de bare de curent alternativ de medie tensiune A la care se conectează bornele de intrare corespunzătoare celor trei faze ale unei celule de medie tensiune de măsură 16 , ale unei cuple longitudinale 21 si ale unor celule de medie tensiune de alimentare transformatoare 17,18,19, 20 .This cell supplies a three-phase system of medium voltage alternating current bars A to which the input terminals corresponding to the three phases of a medium voltage measuring cell 16, of a longitudinal coupling 21 and of medium voltage supply cells are connected. transformers 17,18,19, 20.
Celula de medie tensiune de măsură 16 conține un separator cu funcție dubla de conectare si de punere la masa, transformatoare de măsură de tensiune si curent si un analizor de rețea digital multifuncțional care poate măsură si afișa valorile tensiunilor si curentilor de linie, puterea activa si reactiva totala la intrare si la ieșire, factorul de putere si frecventa sistemului Celulele de medie tensiune 17,18,19, 20 pentru alimentarea transformatoarelor au fiecare in alcătuirea sa un intreruptor, un separator cu funcție dubla de separare si punere la masa si un transformator de curentThe medium voltage measuring cell 16 contains a separator with dual connection and grounding function, voltage and current measurement transformers and a multifunctional digital network analyzer that can measure and display the values of line voltages and currents, active power and total reactant at the input and output, the power factor and the frequency of the system The medium voltage cells 17,18,19, 20 for supplying the transformers each have a switch, a separator with dual separation and grounding function and a transformer power
Aceste celule alimentează înfășurările primare ale unor transformatoare de alimentare redresoare 22,23, 24 si infasurarea primara a unui transformator alimentare servicii auxiliare 25 . Transformatoarele se găsesc in statia de transformatoare 8 .These cells feed the primary windings of rectifier power transformers 22,23, 24 and the primary winding of an auxiliary power transformer 25. The transformers are located in the transformer station 8.
înfășurările secundare ale transformatorului alimentare servicii auxiliare 25 furnizează o tensiune corespunzătoare, de exemplu 3x400V, 50 Hz, pentru alimentarea stafiei de distribuție a energiei la consumatori auxiliari foraj 10.the secondary windings of the auxiliary service transformer 25 provide an appropriate voltage, for example 3x400V, 50 Hz, for supplying power distribution staff to auxiliary drilling consumers 10.
Transformatoarele de alimentare redresoare 22, 23, 24 au conexiunea primar - secundar de tip triunghi - stea si au rolul de a furniza o tensiune corespunzătoare , de exemplu 3x660V, 50 Hz, pentru alimentarea unor invertoare pentru acționarea cu turatie variabila a motoarelor electrice din instalația de foraj.The rectifier supply transformers 22, 23, 24 have the primary - secondary triangle - star connection and have the role of providing an adequate voltage, for example 3x660V, 50 Hz, for supplying inverters for variable speed operation of the electric motors in the installation. for drilling.
In acest scop secundarele acestor transformatoare sunt legate prin niște intreruptoare 26,27,28, amplasate in statia de comanda reglare turatie motoare 11, la un sistem trifazat de bare de curent alternativ de joasa tensiune B , de exemplu 3x 660V, 50 Hz ¢^- 2 0 0 9 - 0 03^-0 8 -05- 2009For this purpose the secondary of these transformers are connected by means of switches 26,27,28, located in the control station for adjusting the engine speed 11, to a three-phase system of low-voltage alternating current bars B, for example 3x 660V, 50 Hz ¢ ^ - 2 0 0 9 - 0 03 ^ -0 8 -05- 2009
De la aceste bare , prin intermediul unui intreruptor 29 se alimentează doua redresoare deFrom these bars, by means of a switch 29, two rectifiers are supplied
putere 30 si 31 ale căror ieșiri de curent continuu sunt legate la un sistem de bare de curent continuu C, de exemplu 1000Vcc, care reprezintă rețeaua de curent continuu de la care se alimentează mai multe invertoare 32, 33, 34,35,36 care furnizează energia de curent alternativ pentru acționarea cu turatie variabila a motoarelor electrice de curent alternativ utilizate la o instalație de foraj.power 30 and 31 whose DC outputs are connected to a DC directional beam system, for example 1000Vdc, which represents the DC network from which several inverters 32, 33, 34,35,36 are fed. provides alternating current energy for variable speed operation of alternating current electric motors used in a drilling plant.
Astfel invertoarele 32 si 33 alimentează riiste motoare electrice de curent alternativ, de exemplu 2 motoare 37, 38 cuplate mecanic la capetele axului angrenajului de la o pompa de noroi 39.Thus the inverters 32 and 33 supply electric motors of alternating current, for example 2 motors 37, 38 mechanically coupled to the ends of the gear shaft from a mud pump 39.
Invertoarele 34 si 35 alimentează niște motoare electrice de curent alternativ, de exemplu 2 motoare 40,41 cuplate mecanic la capetele axului angrenajului al unui troliu 42.Inverters 34 and 35 power some electric motors of alternating current, for example 2 motors 40,41 mechanically coupled to the ends of the gear shaft of a winch 42.
Invertorul 36 alimentează un motor electric de curent alternativ 43 care antrenează o masa rotativa 44.The inverter 36 supplies an AC motor 43 which drives a rotary table 44.
Alimentarea de la a doua rețea de alimentare de medie tensiune 13 , de exemplu 6kV, se realizează cu celula de medie tensiune de intrare 15 ,care conține un intreruptor principal, un separator cu funcție dubla de separare si de punere la masa si un transformator de măsură curent.The power supply from the second medium voltage supply network 13, for example 6kV, is made with the medium voltage input cell 15, which contains a main switch, a separator with dual separation and grounding function and a power transformer. current measure.
Aceasta celula alimentează un sistem trifazat de bare de curent alternativ de medie tensiuneThis cell supplies a three-phase system of medium voltage alternating current bars
D la care se conectează bornele de intrare corespunzătoare celor trei faze ale unor celule de medie tensiune de alimentare transformatoare 45, 46,47, 48, ale unei celule de medie tensiune de măsură 49 si ale cuplei longitudinale 21 . Celula de medie tensiune de măsură 49 conține un separator cu funcție dubla de conectare si de punere la masa, transformatoare de măsură de tensiune si curent si un analizor de rețea digital multifuncțional care poate măsură si afișa valorile tensiunilor si curentilor de linie, puterea activa si reactiva totala la intrare si la ieșire, factorul de putere si frecventa sistemului Celulele de medie tensiune alimentare transformatoare 45, 46,47, 48 au fiecare in alcătuirea sa un întrerupător, un separator cu funcție dubla de separare si punere la masa si un transformator de curentD to which the input terminals corresponding to the three phases of some medium voltage transformer supply cells 45, 46,47, 48, of a medium voltage measuring cell 49 and of the longitudinal coupling 21 are connected. The medium voltage measuring cell 49 contains a separator with dual connection and grounding function, voltage and current measurement transformers and a multifunctional digital network analyzer that can measure and display the values of line voltages and currents, active power and total reactant at the input and output, the power factor and the frequency of the system The medium voltage transformer cells 45, 46,47, 48 each have a switch, a separator with dual separation and grounding function and a transformer. current
Aceste celule alimentează înfășurările primare ale unor transformatoare alimentare redresoare 50, 51, 52 si infasurarea primara a unui transformator alimentare servicii auxiliare 53.These cells feed the primary windings of rectifier feed transformers 50, 51, 52 and the primary winding of an auxiliary feed transformer 53.
înfășurările secundare ale transformatorului alimentare servicii auxiliare 53 furnizează o tensiune corespunzătoare pentru alimentarea statiei de distribuție energie la consumatori auxiliari foraj 10, de exemplu 3x400V, 50Hz.the secondary windings of the auxiliary service transformer 53 provide an adequate voltage for supplying the power distribution station to the auxiliary consumers 10, for example 3x400V, 50Hz.
(S- 2 0 0 9 - 0 0 381. -O 8 -05- 2009(S- 2 0 0 9 - 0 0 3 81. -O 8 -05- 2009
Transformatoarele alimentare redresoare 50,51,52 au conexiunea primar - secundar de tip triunghi - triunghi si au rolul de a furniza o tensiune corespunzătoare pentru alimentarea convertizoarelor statice pentru acționarea cu turatie variabila a motoarelor electrice din instalația de foraj, de exemplu 3x660V, 50Hz.The rectifier power transformers 50,51,52 have the primary - secondary connection of the triangle - triangle type and have the role of providing an adequate voltage for supplying static converters for variable speed actuation of the electric motors in the drilling plant, for example 3x660V, 50Hz.
In acest scop secundarele acestor transformatoare sunt legate prin niște intreruptoare 54,55,56, amplasate in statia de comanda reglare turatie motoare 11, la un sistem trifazat de bare de curent alternativ de joasa tensiune E, de exemplu 3x 660V, 50 Hz De la aceste bare , prin intermediul unui intreruptor 57se alimentează doua redresoare 58 si 59 ale căror ieșiri de curent continuu sunt legate la sistemul de bare de curent continuu C, de exemplu cu tensiunea de 1000Vcc, care reprezintă rețeaua de curent continuu de la care se alimentează invertoarele 32, 33, 34,35,36 care furnizează energia de curent alternativ pentru acționarea cu turatie variabila a motoarelor electrice, precizate mai sus.For this purpose the secondary of these transformers are connected by means of switches 54.55.56, located in the control station for adjusting the engine speed 11, to a three-phase system of low-voltage alternating current bars E, for example 3x 660V, 50 Hz From these bars, via a switch 57, supply two rectifiers 58 and 59 whose direct current outputs are connected to the DC current system C, for example with the voltage of 1000Vdc, which represents the DC network from which the inverters are supplied. 32, 33, 34,35,36 which provide alternating current energy for variable speed actuation of the electric motors mentioned above.
Celula cupla longitodinala 21 conține un separator care permite comutarea tensiunii de alimentare a celor doua sisteme trifazate de bare de ca de medie tensiune A si D la una din cele doua rețele de alimentare de medie tensiune.12 sau 13.The longitudinal coupling cell 21 contains a separator which allows the switching of the supply voltage of the two three-phase systems of medium-voltage AC bars A and D to one of the two medium-voltage supply networks.12 or 13.
Statie sincronizare si cuplare generatoare 7 are in alcătuirea sa 5 intreruptoare de putere 60,61, 62,63,64 pentru conectarea in paralel a celor 5 generatoare 2,3,4,5,6, care furnizează fiecare o energie de joasa tensiune, de exemplu 660V la un sistem trifazat de bare de curent alternativ de joasa tensiune F. Conectarea la acest sistem de bare a fiecărui generator, se realizează prin închiderea intreruptorului fiecărui generator, după îndeplinirea si verificarea condițiilor de sincronizare a tensiunii generatorului cu tensiunea existenta la bare. Tensiunea furnizata de generatoare conectate la sistemul trifazat de bare de curent alternativ de joasa tensiune F, se poate conecta la sistemul trifazat de bare de curent alternativ de joasa tensiune B , prin intermediul unui intreruptor alimentare convertizoare 65 si la sistemul trifazat de bare de curent alternativ de joasa tensiune E , prin intermediul unui alt intreruptor alimentare convertizoare 68.Synchronizing station and generator coupling 7 has 5 power switches 60,61, 62.63,64 for parallel connection of the 5 generators 2,3,4,5,6, which each provide a low voltage energy, for example 660V to a three-phase system of low-voltage alternating current bars F. The connection to this system of bars of each generator is made by closing the switch of each generator, after the conditions of synchronization of the voltage of the generator with the existing voltage at the bars have been met. . The voltage supplied by generators connected to the three-phase system of low-voltage alternating current bars F, can be connected to the three-phase system of low-voltage alternating current bars B, by means of a power supply converter 65 and to the three-phase system of alternating current bars low voltage E, via another converter power switch 68.
Tensiunea furnizata de generatoare la sistemul trifazat de bare de curent alternativ de joasa tensiune F este conectata prin intreruptoarele alimentare transformatoare 67,68 si la statia de distribuție energie la consumatori auxiliari de foraj 10 pentru a alimenta consumatorii auxiliari.The voltage supplied by the generators to the three-phase system of low voltage alternating current bars F is connected by the transformer power switches 67.68 and at the power distribution station to the auxiliary drilling consumers 10 to supply the auxiliary consumers.
Structura schemei electrice descrisa mai sus asigura energizarea sistemului de bare de curent continuu C de la care sunt alimentate invertoarele pentru acționarea cu turatie variabila a motoarelor electrice ale instalației de foraj de la 3 surse de tensiune.The structure of the electrical scheme described above ensures the energization of the DC beam system from which the inverters are supplied for variable speed actuation of the electric motors of the drilling installation from 3 voltage sources.
0- 2 0 0 9 -Ο Ο 3Μ - Ο 8 -05- 20090- 2 0 0 9 -Ο Ο 3Μ - Ο 8 -05- 2009
Prima sursa de alimentare , fig 1, este reprezentata de rețeaua de alimentare de medieThe first power supply, fig. 1, is represented by the average power supply network
tensiune 12 care furnizează tensiunea de alimentare prin intermediul statiei de medie tensiune 1 care conține celula de medie tensiune de intrare 14 si celulele de medie tensiune alimentare transformatoare 17,18,19, care alimentează statia de transformatoare 8 cu transformatoarele 22,23,24 care au tensiunile din secundare conectate prin intreruptoarele 26,27,28,29 la alimentarea redresoarelor de putere 30 si 31 care energizeaza sistemul de bare de curent continuu C din statia de comanda si reglare turatie motoare 11 A doua sursa de alimentare , fig 1, este reprezentata de rețeaua de alimentare de medie tensiune 13 care furnizează tensiunea de alimentare prin intermediul statiei de medie tensiune 1 care conține celula de medie tensiune de intrare 15, si celulele de medie tensiune alimentare transformatoare 46,47,48, care alimentează statia de transfomatoare 9 cu transformatoarele 50,51,52 . Tensiunile din secundarele acestor transformatoare sunt conectate prin intreruptoarele 54,55,56,57 la alimentarea redresoarelor 58 si 59 care energizeaza sistemul de bare de curent continuu C din statia de comanda si reglare turatie motoare 11 de la care sunt alimentate invertoarele pentru acționarea cu turatie variabila a motoarelor electrice ale instalației de forajvoltage 12 which supplies the supply voltage via the medium voltage station 1 which contains the medium voltage input cell 14 and the medium voltage transformer supply cells 17,18,19, which supplies the transformer station 8 with the transformers 22,23,24 which have the secondary voltages connected by the switches 26,27,28,29 to supply the power rectifiers 30 and 31 which energize the DC current system C from the control station and adjust the engine speed 11 The second power supply, fig. 1, is represented by the medium voltage supply network 13 which supplies the supply voltage via the medium voltage station 1 which contains the medium voltage input cell 15, and the transformer medium voltage cells 46,47,48, which supplies the transformer station 9 with transformers 50,51,52. The voltages in the secondary of these transformers are connected by the switches 54,55,56,57 to the supply of the rectifiers 58 and 59 which energize the DC system of direct current C from the control station and regulating the engine speed 11 from which the inverters for driving with speed are fed. variable of the electric motors of the drilling rig
A treia sursa de alimentare , fig1, este reprezentata de cele 5 grupuri diesel generatoare de joasa tensiune conectate in paralel la sistemul trifazat de bare de curent alternativ de joasa tensiune F de la care prin intermediul intreruptoarelor 65 si 68si respectiv 29, 57, din statia de comanda si reglare turatie motoare 11 , se alimentează redresoarele de putere 30,31 si 58,59 care energizeaza sistemul de bare de curent continuu C de la care sunt alimentate invertoarele pentru acționarea cu turatie variabila a motoarelor electrice ale instalației de foraj Sistemele de bare A si D se pot energiza prin cupla longitudinala 21 de la oricare din cele doua rețele de alimentare de medie tensiune 12 sau 13.The third power supply, fig1, is represented by the 5 low voltage generator diesel groups connected in parallel to the three phase low voltage alternating current system F from which through the switches 65 and 68 and respectively 29, 57, from the station for controlling and adjusting the engine speed 11, power rectifiers 30.31 and 58.59 are energized which energize the DC beam system C from which the inverters are supplied for variable speed actuation of the electric motors of the drilling system. A and D can be energized by longitudinal coupling 21 from either of the two medium voltage supply networks 12 or 13.
Statia de distribuție energie la consumatori auxiliari de foraj 10, fig1, furnizează tensiuni de alimentare de 230V , 50Hz si de 3x400V,50Hz pentru consumatorii auxiliari alcatuiti din instalațiile de iluminat, climatizare , ventilație , încărcare acumulatori necesari unei instalații de foraj.The power distribution station for auxiliary drilling consumers 10, fig1, provides 230V, 50Hz and 3x400V, 50Hz supply voltages for the auxiliary consumers consisting of lighting, air conditioning, ventilation, charging batteries required for a drilling installation.
Aceasta statie de distribuție energie are in alcătuirea sa doua transformatoare 69 ,70 cu primarele conectate la sistemul trifazat de bare de curent alternativ de joasa tensiune F energizat de tensiunea generatoarelor.This power distribution station has in its composition two transformers 69, 70 with the mayors connected to the three-phase system of alternating current bars of low voltage F energized by the voltage of the generators.
Secundarul transformatorului 69 ,care are de exemplu tensiunea de 3x400V, 50Hz se leaga printr-un intreruptor 71 la un sistem trifazat de bare de distribuție G iar secundarul f<- 2 9 ί) 8 - Ο Ο 3 51 - - „ β « -05- 2009 h transformatorului 70 ,care are de exemplu tensiunea de 3x400v, 50Hz se leaga printr-un intreruptor 72 la un alt sistem trifazat de bare de distribuție H.The secondary of the transformer 69, which has for example the voltage of 3x400V, 50Hz, is connected by a switch 71 to a three-phase system of distribution bars G and the secondary f <- 2 9 ί) 8 - Ο Ο 3 51 - - „β« - 05- 2009 h of the transformer 70, which has for example the voltage of 3x400v, 50Hz is connected through a switch 72 to another three-phase system of distribution bars H.
Cele doua sisteme de bare G si H se pot lega împreuna printr-un alt intreruptor 73 Sistemul trifazat de bare de distribuție G se mai poate alimenta de la infasurarea secundara a transformatorului alimentare servicii auxiliare 25 din statia de transformatoare 8 prin intreruptorul 74 , care are tensiunea de 3x400v, 50HzThe two bar systems G and H can be connected together by another switch 73 The three-phase system of distribution bars G can be fed from the secondary winding of the transformer auxiliary services 25 from the transformer station 8 through the switch 74, which has voltage 3x400v, 50Hz
Sistemul trifazat de bare de distribuție H se alimentează de la infasurarea secundara a transformatorului alimentare servicii auxiliare 53, care are de exemplu tensiunea de 3x400v, 50Hz din statia de transformatoare 9 prin intreruptorul 75.The three-phase system of distribution bars H is supplied from the secondary winding of the transformer auxiliary services 53, which has for example the voltage of 3x400v, 50Hz from the transformer station 9 through the switch 75.
De la sistemul trifazat de bare de distribuție G se alimentează un transformator monofazat care furnizează in secundarele sale tensiunile adecvate pentru alimentarea unitatii de distribuție 77 a tensiunii de 230V, 50Hz si a unitatii de distribuție 78 a tensiunii de 24Vcc De la sistemul trifazat de bare de distribuție H se alimentează unitatea de distribuție 79 a tensiunii de 3x400V, 50HzFrom the three-phase system of distribution bars G a single-phase transformer is supplied which supplies in its secondary circuits the adequate voltages for supplying the distribution unit 77 of the 230V, 50Hz voltage and of the distribution unit 78 of the 24Vcc voltage. distribution H supplies the distribution unit 79 of the voltage of 3x400V, 50Hz
La sistemul trifazat de bare de distribuție G se poate conecta printr-un intreruptor 80 un generator auxiliar 81, care asigura alimentarea cu tensiune a consumatorilor auxiliari de foraj, pana la pornirea grupurilor diesel generatoare 2,3,4,5,6.To the three-phase system of distribution bars G, an auxiliary generator 81 can be connected by a switch 80, which ensures the power supply of the auxiliary drilling consumers, until the start of the diesel generator groups 2,3,4,5,6.
Echipamentul electric de comanda si reglare pentru instalații de foraj cu motoare electrice de curent alternativ alimentat de la surse de medie tensiune , conform invenției, fjg2 , are in alcătuirea sa cinci grupuri diesel generatoare 82,83,84,85,86 care , furnizează fiecare o energie de medie tensiune, de exemplu 6kV. Fiecare din cele 5 generatoare 82,83,84,85,86 este conectat la cate o celula de medie tensiune 87,88,89,90,91 care conține un intreruptor principal, un separator cu funcție dubla de separare si de punere la masa si un transformator de măsură curent si la cate o celula de medie tensiune de măsură 92,93,94,95,96 care conține un separator cu funcție dubla de conectare si de punere la masa, transformatoare de măsură de tensiune si curent si un analizor de rețea digital multifuncțional care poate măsură si afișa valorile tensiunilor si curentilor de linie, puterea activa si reactiva totala la intrare si la ieșire, factorul de putere si frecventa tensiunii generatorului.The electrical control and control equipment for drilling installations with alternating current electric motors powered from medium voltage sources, according to the invention, fjg2, has in its composition five diesel generator sets 82,83,84,85,86 which each provide a medium voltage energy, for example 6kV. Each of the 5 generators 82,83,84,85,86 is connected to each medium voltage cell 87,88,89,90,91 which contains a main switch, a separator with dual separation function and grounding and a current measuring transformer and each a medium voltage measuring cell 92,93,94,95,96 which contains a separator with dual connection and grounding function, voltage and current measuring transformers and an analyzer multifunctional digital network that can measure and display the values of line voltages and currents, total active and reactive power at input and output, power factor and generator voltage frequency.
Bornele de ieșire ale intreruptoarelor 87,88,89,90,91 sunt legate împreuna la un sistem trifazat de bare de curent alternativ de medie tensiune IThe output terminals of the switches 87,88,89,90,91 are connected together to a three-phase system of medium voltage alternating current I
Conectarea la acest sistem de bare a fiecărui generator, se realizează prin închiderea intreruptorului fiecărui generator, după îndeplinirea si verificarea condițiilor de sincronizare a tensiunii generatorului cu tensiunea existenta la bare.The connection to this bar system of each generator is made by closing the switch of each generator, after the conditions of synchronization of the voltage of the generator with the existing voltage at the bars have been met.
6-- 2 Ο (19 - Ο Ο 3 61 - Ο 8 -05- 2009 Tensiunea furnizata de generatoare conectate la sistemul trifazat de bare de curent6-- 2 Ο (19 - Ο Ο 3 61 - Ο 8 -05- 2009 Voltage supplied by generators connected to the three-phase system of current bars
alternativ de medie tensiune I, se poate conecta la sistemul trifazat de bare de curent alternativ de medie tensiune A , prin intermediul unei o celula de medie tensiune 97 care conține un intreruptor principal, un separator cu funcție dubla de separare si de punere la masa si un transformator de măsură curent.medium voltage alternator I, can be connected to the three phase alternating current medium voltage system A through a medium voltage cell 97 containing a main switch, a separator with dual separation and grounding function and a current measuring transformer.
Tensiunea furnizata de generatoare conectate la sistemul trifazat de bare de curent alternativ de medie tensiune I, poate fi conectata la sistemul trifazat de bare de curent alternativ de medie tensiune D , prin intermediul unei o celula de medie tensiune 98 care conține un intreruptor principal, un separator cu funcție dubla de separare si de punere la masa si un transformator de măsură curent.The voltage supplied by generators connected to the three-phase alternating current system of medium voltage I, can be connected to the three-phase system of alternating current of medium voltage D, by means of a medium voltage cell 98 which contains a main switch, a separator with dual separation and grounding function and a current measuring transformer.
In aceste doua cazuri intreruptoarele celulelor de medie tensiune 14 si 15 sunt deschise si întregul echipament se alimentează cu medie tensiune de la grupurile diesel generatoare.In these two cases the medium voltage cell switches 14 and 15 are open and the entire equipment is supplied with medium voltage from the generating diesel groups.
Claims (9)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ROA200900361A RO126008B1 (en) | 2009-05-08 | 2009-05-08 | Electrical control equipment for drilling installations with ac electrical motors which is supplied from low and medium voltage power sources |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ROA200900361A RO126008B1 (en) | 2009-05-08 | 2009-05-08 | Electrical control equipment for drilling installations with ac electrical motors which is supplied from low and medium voltage power sources |
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| Publication Number | Publication Date |
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| RO126008A2 true RO126008A2 (en) | 2011-01-28 |
| RO126008B1 RO126008B1 (en) | 2015-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| ROA200900361A RO126008B1 (en) | 2009-05-08 | 2009-05-08 | Electrical control equipment for drilling installations with ac electrical motors which is supplied from low and medium voltage power sources |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112227995A (en) * | 2020-10-13 | 2021-01-15 | 中国海洋石油集团有限公司 | Electric control system for well wall coring |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112227995A (en) * | 2020-10-13 | 2021-01-15 | 中国海洋石油集团有限公司 | Electric control system for well wall coring |
| CN112227995B (en) * | 2020-10-13 | 2022-09-06 | 中国海洋石油集团有限公司 | Electric control system for well wall coring |
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| Publication number | Publication date |
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| RO126008B1 (en) | 2015-04-30 |
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