IT1143472B - Gruppo elettrogeno polifase ad induzione con controllo capacitivo del fattore di potenza - Google Patents
Gruppo elettrogeno polifase ad induzione con controllo capacitivo del fattore di potenzaInfo
- Publication number
- IT1143472B IT1143472B IT6744881A IT6744881A IT1143472B IT 1143472 B IT1143472 B IT 1143472B IT 6744881 A IT6744881 A IT 6744881A IT 6744881 A IT6744881 A IT 6744881A IT 1143472 B IT1143472 B IT 1143472B
- Authority
- IT
- Italy
- Prior art keywords
- power factor
- generator set
- induction generator
- polyphase induction
- capacitive control
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/46—Control of asynchronous generator by variation of capacitor
-
- 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
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
- H02J3/1835—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/188,306 US4417194A (en) | 1980-09-18 | 1980-09-18 | Induction generator system with switched capacitor control |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8167448A0 IT8167448A0 (it) | 1981-03-31 |
IT1143472B true IT1143472B (it) | 1986-10-22 |
Family
ID=22692615
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT6744881A IT1143472B (it) | 1980-09-18 | 1981-03-31 | Gruppo elettrogeno polifase ad induzione con controllo capacitivo del fattore di potenza |
Country Status (8)
Country | Link |
---|---|
US (1) | US4417194A (it) |
JP (1) | JPS57116600A (it) |
CA (1) | CA1169486A (it) |
DE (1) | DE3113178A1 (it) |
ES (10) | ES505573A0 (it) |
FR (1) | FR2490421B1 (it) |
GB (6) | GB2085622B (it) |
IT (1) | IT1143472B (it) |
Families Citing this family (69)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4791309A (en) * | 1982-09-21 | 1988-12-13 | Thamesmead Engineering Limited | Electrical control systems |
US4529887A (en) * | 1983-06-20 | 1985-07-16 | General Electric Company | Rapid power response turbine |
US4482857A (en) * | 1983-08-08 | 1984-11-13 | Rig Efficiency, Inc. | Closed loop power factor control for drilling rigs |
FR2568428B1 (fr) * | 1984-07-26 | 1986-12-26 | Dijon Inst Univers Techno Creu | Procede et installation de regulation en tension d'une machine asynchrone utilisee en generatrice autonome, par variation echelonnee d'une batterie de condensateurs connectes sur le reseau. |
US4682044A (en) * | 1984-10-25 | 1987-07-21 | Mazda Motor Corporation | Engine idling load control means |
JPH0634634B2 (ja) * | 1984-12-04 | 1994-05-02 | 株式会社ゼクセル | 発電機の負荷検出装置 |
FR2574479B1 (fr) * | 1984-12-11 | 1987-01-02 | Alsthom Atlantique | Dispositif electronique pour le pilotage d'un ensemble comprenant un moteur diesel entrainant un generateur alimentant un moteur electrique |
US4677364A (en) * | 1985-01-04 | 1987-06-30 | The United States Of America As Represented By The United States Department Of Energy | Reactive power compensating system |
US4605890A (en) * | 1985-06-24 | 1986-08-12 | Vernitron Corporation | Synchro power amplifier and control circuit for automatically tuning an inductive load |
US4656413A (en) * | 1986-06-19 | 1987-04-07 | Bourbeau Frank J | Stabilized control system and method for coupling an induction generator to AC power mains |
US4730118A (en) * | 1987-02-03 | 1988-03-08 | James D. Barnes | Oil field induction generator system |
US5105096A (en) * | 1989-05-17 | 1992-04-14 | Thermo King Corporation | Transport refrigeration system with stand-by compressor drive motor also operable as a generator |
US5081591A (en) * | 1990-02-28 | 1992-01-14 | Westinghouse Electric Corp. | Optimizing reactive power distribution in an industrial power network |
US5041959A (en) * | 1990-08-14 | 1991-08-20 | General Electric Company | Control system for a current source converter supplying an AC bus |
ES2084906T3 (es) * | 1991-11-07 | 1996-05-16 | Siemens Ag | Instalacion para la generacion de energia electrica. |
US5376877A (en) * | 1992-06-11 | 1994-12-27 | Generac Corporation | Engine-driven generator |
US5296796A (en) * | 1992-11-23 | 1994-03-22 | The Charles Starkdraper Laboratory, Inc. | Method and apparatus for dynamic range optimization in a PWM motor drive |
ES2141507T3 (es) * | 1995-06-30 | 2000-03-16 | Ecopower Energy Solutions Ag | Procedimiento para la dosificacion de la potencia calorifica de un generador combinado de potencia-calor y dispositivo para el mismo. |
US5745670A (en) * | 1996-06-11 | 1998-04-28 | Lanart Corporation | Fault tolerant power supply system |
US6788031B2 (en) * | 2001-01-26 | 2004-09-07 | Larry Stuart Pendell | Induction generator system and method |
DE60130885D1 (de) * | 2001-08-10 | 2007-11-22 | Ibm | Integrierte elektronische Schaltung mit nicht-linearen Vorrichtungen |
US6815934B2 (en) * | 2001-10-01 | 2004-11-09 | Haynes Beffel & Wolfeld Llp | Induction generator power supply |
US7330016B2 (en) * | 2001-10-01 | 2008-02-12 | Colley Bruce H | Induction generator power supply |
JP3833600B2 (ja) * | 2002-10-08 | 2006-10-11 | 三菱電機株式会社 | 車両用交流発電機故障判定装置 |
CA2411132A1 (en) * | 2002-11-05 | 2004-05-05 | Railpower Technologies Corp. | Direct turbogenerator |
GB0301833D0 (en) * | 2003-01-27 | 2003-02-26 | Switched Reluctance Drives Ltd | A variable reluctance generator |
WO2005030550A1 (en) | 2003-08-26 | 2005-04-07 | Railpower Technologies Corp. | A method for monitoring and controlling locomotives |
US7467830B2 (en) | 2004-02-17 | 2008-12-23 | Railpower Technologies Corp. | Managing wheel slip in a locomotive |
EP1723018A4 (en) * | 2004-03-08 | 2008-08-13 | Railpower Technologies Corp | CONFIGURATION OF HYBRID LOCOMOTIVE |
US7161257B2 (en) * | 2004-03-08 | 2007-01-09 | Ingersoll-Rand Energy Systems, Inc. | Active anti-islanding system and method |
US7349797B2 (en) | 2004-03-30 | 2008-03-25 | Railpower Technologies Corp | Emission management for a hybrid locomotive |
US20060012334A1 (en) | 2004-05-17 | 2006-01-19 | Railpower Technologies Corp. | Automated battery cell shunt bypass |
AU2005273975A1 (en) | 2004-08-09 | 2006-02-23 | Railpower Technologies Corp. | Regenerative braking methods for a hybrid locomotive |
AU2005272903A1 (en) | 2004-08-09 | 2006-02-23 | Railpower Technologies Corp. | Locomotive power train architecture |
EP1794875A2 (en) | 2004-09-03 | 2007-06-13 | Railpower Technologies Corp. | Multiple engine locomotive configuration |
US7142997B1 (en) | 2004-12-08 | 2006-11-28 | Tripac Systems, Inc. | Automatic power factor corrector |
CA2544910C (en) | 2005-04-25 | 2013-07-09 | Railpower Technologies Corp. | Multiple prime power source locomotive control |
ITTO20050711A1 (it) * | 2005-10-07 | 2007-04-08 | Ansaldo Ricerche S P A | Rete di distribuzione di energia di tipo riconfigurabile |
ITTO20050712A1 (it) * | 2005-10-07 | 2007-04-08 | Ansaldo Ricerche S P A | Sistema di generazione di energia elettrica |
WO2007047809A2 (en) | 2005-10-19 | 2007-04-26 | Railpower Technologies Corp. | Design of a large low maintenance battery pack for a hybrid locomotive |
US20080288132A1 (en) | 2007-05-16 | 2008-11-20 | General Electric Company | Method of operating vehicle and associated system |
US7848074B2 (en) * | 2007-08-28 | 2010-12-07 | Astec International Limited | Electronic circuit breaker and method |
GB0801936D0 (en) * | 2008-02-01 | 2008-03-12 | Isis Innovation | Electricity generator |
US20100010924A1 (en) * | 2008-07-14 | 2010-01-14 | Green Equity, LLC | Energy credit harvesting |
WO2010019248A2 (en) * | 2008-08-14 | 2010-02-18 | Simplure, Llc. | Systems and methods for conditioning and controlling power usage |
US8120206B2 (en) | 2008-09-10 | 2012-02-21 | Hamilton Sundstrand Corporation | Method of detecting a sustained parallel source condition |
US7646178B1 (en) | 2009-05-08 | 2010-01-12 | Fradella Richard B | Broad-speed-range generator |
EP2526605A2 (en) * | 2010-01-22 | 2012-11-28 | ABB Inc. | Method and apparatus for improving power generation in a thermal power plant |
FR2962271B1 (fr) * | 2010-07-02 | 2012-08-17 | Hispano Suiza Sa | Alimentation electrique des equipements portes par un support rotatif |
US8638059B2 (en) | 2010-08-11 | 2014-01-28 | Dayton-Phoenix Group, Inc. | Control for multi-phase induction motor |
RU2448357C1 (ru) * | 2010-08-16 | 2012-04-20 | Федеральное государственное образовательное учреждение высшего профессионального образования "Ижевская государственная сельскохозяйственная академия" | Способ повышения коэффициента мощности асинхронного генератора с короткозамкнутым ротором при работе параллельно с сетью |
FR2967318B1 (fr) * | 2010-11-10 | 2013-07-19 | Hispano Suiza Sa | Circuit d'alimentation pour un aeronef incluant une machine asynchrone |
RU2444124C1 (ru) * | 2011-02-25 | 2012-02-27 | Владимир Ильич Бровин | Генератор разрывов электрической цепи - качер на транзисторе |
RU2457612C1 (ru) * | 2011-03-16 | 2012-07-27 | Федеральное государственное образовательное учреждение высшего профессионального образования "Кубанский государственный аграрный университет" | Устройство для регулирования и стабилизации напряжения автономного многофункционального асинхронного генератора |
FR2976422B1 (fr) * | 2011-06-08 | 2014-10-31 | Valeo Equip Electr Moteur | Procede de controle d'un couple resistant d'un alternateur de vehicule automobile, et systeme de mise en oeuvre de ce procede |
WO2014007656A1 (en) * | 2012-02-02 | 2014-01-09 | Auckland Uniservices Limited | Var control for inductive power transfer systems |
RU2539347C1 (ru) * | 2013-07-26 | 2015-01-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Липецкий государственный технический университет" (ЛГТУ) | Способ управления автономным асинхронным двигателем |
US20150124358A1 (en) * | 2013-11-01 | 2015-05-07 | Eaton Corporation | Feeder power source providing open feeder detection for a network protector by shifted neutral |
GB2539204B (en) * | 2015-06-08 | 2021-03-24 | Ec Power As | Starter for a combined heat and power unit |
FR3044174B1 (fr) | 2015-11-25 | 2023-06-02 | Electricite De France | Systeme et procede de regulation de tension et frequence d'un reseau isolable |
TWI628901B (zh) * | 2016-10-05 | 2018-07-01 | 聖約翰科技大學 | 單相感應發電機的自激電容配置方法 |
RU2656240C1 (ru) * | 2017-01-30 | 2018-06-04 | Александр Геннадьевич Ходырев | Электродвижитель для получения свободной энергии, используя асинхронный генератор скольжения |
RU2687049C1 (ru) * | 2018-01-10 | 2019-05-07 | Акционерное общество "Электроавтоматика" | Способ управления электроагрегатом с асинхронным генератором |
US11777411B2 (en) | 2019-08-02 | 2023-10-03 | Eaton Intelligent Power Limited | Resonant power converter for wide voltage switching |
RU2726949C1 (ru) * | 2019-10-09 | 2020-07-17 | федеральное государственное бюджетное образовательное учреждение высшего образования "Национальный исследовательский университет "МЭИ" (ФГБОУ ВО "НИУ "МЭИ") | Устройство автоматического регулирования и стабилизации напряжения асинхронного генератора |
EP3954896A1 (de) * | 2020-08-14 | 2022-02-16 | Wobben Properties GmbH | Pendeldämpfung bei windenergieanlagen |
CN213980949U (zh) * | 2020-08-27 | 2021-08-17 | 康明斯电力公司 | 用于发电机组的系统 |
CN112486223B (zh) * | 2020-12-10 | 2022-02-08 | 浙江天正电气股份有限公司 | 一种控制电容器温度的方法及装置 |
RU2761868C1 (ru) * | 2021-02-25 | 2021-12-13 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Липецкий государственный технический университет" | Способ управления автономным асинхронным генератором |
Family Cites Families (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1738344A (en) * | 1928-04-14 | 1929-12-03 | Gen Electric | Control system |
US1931644A (en) * | 1929-02-26 | 1933-10-24 | Ajax Electrothermic Corp | Method and mechanism for removing reactances |
US1940295A (en) * | 1929-05-25 | 1933-12-19 | Gen Electric | Regulating system |
GB370890A (en) | 1930-10-30 | 1932-03-30 | Philip Ray Coursey | Improvements in apparatus for the control of the power factor of electric supply systems |
GB405234A (en) | 1932-04-16 | 1934-02-01 | Lorenz C Ag | Improvements in or relating to regulating arrangements for electric generators |
US2078667A (en) * | 1934-11-09 | 1937-04-27 | Westinghouse Electric & Mfg Co | Automatic control system for phase-advancing means |
US2243584A (en) * | 1939-09-04 | 1941-05-27 | Gen Electric | Voltage regulation |
US2293484A (en) * | 1940-06-27 | 1942-08-18 | Gen Electric | Control system |
US2298026A (en) * | 1941-07-15 | 1942-10-06 | Gen Electric | Control system |
US2484575A (en) * | 1943-03-20 | 1949-10-11 | Gen Electric | Phase controled switching system |
US2436302A (en) * | 1943-12-24 | 1948-02-17 | Westinghouse Electric Corp | Alternating current motor starting by means of capacitors |
US2451939A (en) * | 1944-04-27 | 1948-10-19 | Westinghouse Electric Corp | Automatic switching system |
US2460467A (en) * | 1944-08-16 | 1949-02-01 | Line Material Co | System of controlling electric lines |
GB657625A (en) | 1948-04-01 | 1951-09-26 | Emi Ltd | Improvements relating to controlling the phase of electrical oscillation generators |
US2705301A (en) * | 1952-06-14 | 1955-03-29 | Westinghouse Electric Corp | Dual voltage capacitor bank |
US2881376A (en) * | 1956-06-21 | 1959-04-07 | Gen Motors Corp | Induction motor control system |
DE1104059B (de) * | 1956-08-10 | 1961-04-06 | Siemens Ag | Messwertumformer zur Anzeige einer Frequenzabweichung von einem Sollwert |
US2871439A (en) * | 1957-01-16 | 1959-01-27 | Gen Motors Corp | Induction generator power system |
US3002147A (en) * | 1958-06-09 | 1961-09-26 | Wasserman Charles | Remote capacitor switching apparatus for power distribution system |
US3002146A (en) * | 1958-10-13 | 1961-09-26 | Motorola Inc | Remote capacitor switching system |
US3043115A (en) * | 1959-12-30 | 1962-07-10 | Carrier Corp | Method and apparatus for the generation of electric power |
US3084323A (en) * | 1961-03-07 | 1963-04-02 | Ohio Crankshaft Co | Furnace control circuit |
US3185811A (en) * | 1961-10-26 | 1965-05-25 | Ohio Crankshaft Co | Automatic induction furnace control |
DE1241905B (de) * | 1964-07-08 | 1967-06-08 | Ero Starkstrom Kondensatoren | Verfahren zur Kompensation der Blindleistung eines Verbrauchers und Vorrichtung zur Durchfuehrung dieses Verfahrens |
US3375433A (en) * | 1964-10-05 | 1968-03-26 | Electric Products Company | Device for controlling the output frequency of a generator driven by a wound rotor induction motor |
CH429920A (de) * | 1965-02-19 | 1967-02-15 | Bbc Brown Boveri & Cie | Einrichtung an einer Induktions-Glüh- oder Schmelzanlage zur Blindleistungskompensation |
US3419792A (en) * | 1966-02-01 | 1968-12-31 | Ohio Crankshaft Co | Device for controlling the power factor in the output circuit of a generator |
DE1538349B2 (de) | 1966-07-20 | 1971-09-02 | Robert Bosch Gmbh, 7000 Stuttgart | Anordnung zum konstanthalten der frequenz eines wechsel stromgenerators |
DE1638425A1 (de) | 1967-11-10 | 1971-07-22 | Licentia Gmbh | Anordnung zum Zuschalten von Kondensatoren an eine Wechselspannung |
JPS5526782B1 (it) * | 1967-12-02 | 1980-07-16 | ||
DE1763380A1 (de) * | 1968-05-17 | 1971-10-28 | Licentia Gmbh | Asynchrongenerator mit thyristorgesteuerten Parallelkondensatoren |
US3675117A (en) * | 1971-04-26 | 1972-07-04 | Eberhart Reimers | Asynchronous generator device |
US3731183A (en) * | 1971-09-29 | 1973-05-01 | Inductotherm Corp | Power control and phase angle correcting apparatus |
US3829758A (en) * | 1972-02-02 | 1974-08-13 | Borg Warner | Ac-dc generating system |
DE2221877A1 (de) * | 1972-05-04 | 1973-11-15 | Siemens Ag | Anordnung zur spannungsregelung von synchronmaschinen |
US3832625A (en) * | 1973-02-26 | 1974-08-27 | Westinghouse Electric Corp | Electrical power generating arrangement and method utilizing an induction generator |
US3821456A (en) * | 1973-09-24 | 1974-06-28 | Ajax Magnethermic Corp | Power control means for a single phase induction melting or heating furnace |
US4037044A (en) * | 1975-08-04 | 1977-07-19 | Ajax Magnethermic Corporation | Power control system for single phase induction melting or heating furnace |
US4052648A (en) * | 1976-07-19 | 1977-10-04 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Power factor control system for ac induction motors |
US4139723A (en) * | 1977-04-21 | 1979-02-13 | Ajax Magnethermic Corporation | Power control unit for a single phase load with slightly changing impedances |
SE417472B (sv) * | 1977-10-13 | 1981-03-16 | Asea Ab | Kondensatorutrustning for anslutning till ett vexelspenningsnet |
SE416693B (sv) * | 1979-03-08 | 1981-01-26 | Elmekano I Lulea Ab | Anordning for faskompensering och magnetisering av en asynkronmaskin vid drift som generator |
-
1980
- 1980-09-18 US US06/188,306 patent/US4417194A/en not_active Expired - Lifetime
-
1981
- 1981-03-27 GB GB8109626A patent/GB2085622B/en not_active Expired
- 1981-03-27 GB GB8416748A patent/GB2142451B/en not_active Expired
- 1981-03-31 CA CA000374277A patent/CA1169486A/en not_active Expired
- 1981-03-31 IT IT6744881A patent/IT1143472B/it active
- 1981-04-01 DE DE3113178A patent/DE3113178A1/de not_active Withdrawn
- 1981-09-17 ES ES505573A patent/ES505573A0/es active Granted
- 1981-09-17 FR FR8117579A patent/FR2490421B1/fr not_active Expired
- 1981-09-18 JP JP14640981A patent/JPS57116600A/ja active Pending
-
1982
- 1982-08-16 ES ES515009A patent/ES515009A0/es active Granted
- 1982-08-16 ES ES515012A patent/ES8305981A1/es not_active Expired
- 1982-08-16 ES ES515010A patent/ES515010A0/es active Granted
- 1982-08-16 ES ES515006A patent/ES515006A0/es active Granted
- 1982-08-16 ES ES515008A patent/ES8306933A1/es not_active Expired
- 1982-08-16 ES ES515004A patent/ES515004A0/es active Granted
- 1982-08-16 ES ES515007A patent/ES8305977A1/es not_active Expired
- 1982-08-16 ES ES515005A patent/ES515005A0/es active Granted
- 1982-08-16 ES ES515011A patent/ES515011A0/es active Granted
-
1984
- 1984-07-02 GB GB08416749A patent/GB2142491B/en not_active Expired
- 1984-07-02 GB GB8416746A patent/GB2141886B/en not_active Expired
- 1984-07-02 GB GB8416745A patent/GB2141885B/en not_active Expired
- 1984-07-02 GB GB8416747A patent/GB2142450B/en not_active Expired
Also Published As
Similar Documents
Publication | Publication Date | Title |
---|---|---|
IT1143472B (it) | Gruppo elettrogeno polifase ad induzione con controllo capacitivo del fattore di potenza | |
BR7904224A (pt) | Conjunto de bobina eletrica | |
BR7907579A (pt) | Aparelho indutivo eletrico | |
IT7969310A0 (it) | Trasformatore elettrico | |
DK352880A (da) | Elektrisk kogeplade | |
FI803222L (fi) | Elektrisk kondensator | |
BR7904532A (pt) | Transformador eletro-acustico | |
IT8023697A0 (it) | Condensatore elettrico. | |
IT1132722B (it) | Dispositivo per il comando di forni elettrolici | |
IT1127974B (it) | Generatore di corrente di potenza sinusoidale particolarmente per apparecchi di riscaldamento ad induzione | |
BR7805677A (pt) | Aparelho indutivo eletrico | |
FI811048L (fi) | Malningsfoerfarande och -anordning under anvaendning av slipskivor i en skivrenare | |
IT1130015B (it) | Separatore ciclonico del tipo ad induzione | |
IT7920777A0 (it) | Convertitore di frequenza diretto ca/ca. | |
IT8323402V0 (it) | Disposizione circuitale percommutare l'apporto di energie ad utilizzatori elettrici. | |
FI810343L (fi) | Spolkropp foer elektriska spolar | |
JPS5566711A (en) | Induction generator | |
FI811103L (fi) | Anordning foer framstaellning av elektriska kablar | |
FI802616A (fi) | Mellanvaegg foer uppdelning av ledningskanal foer elektriska ledningar i sektioner | |
AT372183B (de) | Induktions-tiegelofen | |
BE887974A (fr) | Convertisseur courant continu-courant alternatif | |
BR8202844A (pt) | Aparelho indutivo eletrico | |
BR7900403A (pt) | Aparelho inversor | |
BR7900004A (pt) | Capacitor eletrico | |
NO791337L (no) | Fordampningskjoelt elektrisk induktivt apparat |