Tag Archives: transformer

Phase-shift post regulator and its operation method and power transformer

Application Number  00128773 Application Date  2000.09.21 Publication Number  1289171 Publication Date  2001.03.28 Priority Information   1999/9/22 US 09/401,728   International Classification  H02M3/22   Applicant(s) Name  Lucent Technology Inc.   Address     Inventor(s) Name  He Jin;Mark Eriot Arkbo   Patent Agency Code  11038 Patent Agent  wang maohua AbstractFor use in a power converter having an… Read More »

Switch power circuit and isolated variable transformer

Application Number  00128436 Application Date  2000.09.30 Publication Number  1290991 Publication Date  2001.04.11 Priority Information   1999/9/30 JP 278985/99   International Classification  H02M3/335;H02M7/00   Applicant(s) Name  Sony Corp.   Address     Inventor(s) Name  Yasumura Masayuki   Patent Agency Code  11105 Patent Agent  wang zhisen AbstractThe invention provides a switching power circuit and an insulating converter… Read More »

Self-protecting constant-voltage power transformer

Application Number: 00111315Application Date: 2000.08.30Publication Number: 1340749Publication Date: 2002.03.20Priority Information: International: G05F1/14;G05F1/153;H02M5/12Applicant(s) Name: Yao ZhimingAddress: Inventor(s) Name: Yao Honglin;Yao ZhimingPatent Agency Code: 00000Patent Agent: Abstract A self-protecting constant-voltage power transformer is disclosed, and it is controlled by a built-in microcontroller to real-time sample and analyze the running parameters for judging if there is voltage variation… Read More »

Transformer

Application Number: 00120276Application Date: 2000.07.19Publication Number: 1282082Publication Date: 2001.01.31Priority Information: 1999/7/27 FR 9909728International: H01F27/36;H01F38/42Applicant(s) Name: Thomson Television Device S.A.Address: Inventor(s) Name: Paul Kawalhayro;Philiph Fentes;Daniel GudyPatent Agency Code: 11105Patent Agent: li xiaoshuAbstract The present invention relates to a transformer comprises a first support carrying a primary winding and a second support carrying a partial secondary winding… Read More »

Method for cooling transformer by means of change in aggregation state of fluid medium

Application Number: 00112473Application Date: 2000.08.20Publication Number: 1339801Publication Date: 2002.03.13Priority Information: International: F28D15/02;H01F27/08;H05K7/20Applicant(s) Name: Zhu YoumaiAddress: Inventor(s) Name: Zhu YoumaiPatent Agency Code: 00000Patent Agent: Abstract By means of compressing and decompressing fluid medium to make the fluid medium change in its aggregation state, transformer is cooled through the heat transfer inside the transformer caused by the… Read More »

Transformer equipment for increasing energy utilization rate of wind-driven electric generation

Application Number: 00120550Application Date: 2000.11.06Publication Number: 1297272Publication Date: 2001.05.30Priority Information: International: H02J7/00;H02J7/32;H02M7/5387Applicant(s) Name: Xiwang Electronic Inst, ChengduAddress: Inventor(s) Name: Liu YongyanPatent Agency Code: 00000Patent Agent: Abstract An electric transforming equipment for higher energy utilizing rate of wind-driven electric generation is composed of PFC-type three-phase rectifying filter, accumulator, SPWM control three-phase inverse-transforming bridge and three LC… Read More »

Power transformer changing triphase into four-phase

Application Number: 00113419Application Date: 2000.05.11Publication Number: 1324083Publication Date: 2001.11.28Priority Information: International: H01F30/14Applicant(s) Name: Liu GuangyeAddress: Inventor(s) Name: Liu GuangyePatent Agency Code: 00000Patent Agent: Abstract An electric power transformer of changing three phase to four phase forms as to wind the first and the second original winding at a column, the first and the second original… Read More »

Method for forming resin moulded parts of transformer coil

Application Number: 00121415Application Date: 2000.07.20Publication Number: 1282097Publication Date: 2001.01.31Priority Information: 1999/7/26 KR 99-30304International: B29C45/17;H01F41/12Applicant(s) Name: Samsung Electronics Co., Ltd.Address: Inventor(s) Name: Kim Chol-ChimPatent Agency Code: 11021Patent Agent: liu xiaofengAbstract A method for forming a resin molding on a coil of a transformer is disclosed. The method comprises the steps of inserting a coil into an… Read More »

Bidirectional current transformer

Application Number: 00113611Application Date: 2000.08.12Publication Number: 1338399Publication Date: 2002.03.06Priority Information: International: B60L3/00Applicant(s) Name: Liu TianxiAddress: Inventor(s) Name: Liu TianxiPatent Agency Code: 43105Patent Agent: ding xuAbstract A bidirectional current transformer is composed of commutator consisting of 2m commutating segments arranged uniformly on circumference, 3n AC-end brushes arranged uniformly on same circumference, slide ring connected with the… Read More »

Winding frame for transformer

Application Number: 00121782Application Date: 2000.07.28Publication Number: 1336674Publication Date: 2002.02.20Priority Information: International: H01F27/30;H01F41/08Applicant(s) Name: Dafang Electronics Co., Ltd.Address: Inventor(s) Name: Jaing Shenglong;Huang Jinchu;Xue JingfuPatent Agency Code: 11105Patent Agent: li xiaoshuAbstract This invention relates winding frame for mfg. transformers. It contains an hollow frame drum, a terminal foot base and an isolation plate. Said drum is a… Read More »

Flyback transformer

Application Number: 00114039Application Date: 2000.01.26Publication Number: 1307344Publication Date: 2001.08.08Priority Information: International: H01F38/42Applicant(s) Name: Huizhou Sanhua Industry Co., Ltd.Address: Inventor(s) Name: Yan HongjunPatent Agency Code: 44207Patent Agent: chen tianAbstract The miniaturized flyback transformer for color TV set incldues magnetic core of magnetic material HV22, coil of 0.04 mm size copper wire, and focusing potentiometer with regulation… Read More »

Double bus power transformer substation, and interruption and selection switch equipment for same

Application Number: 00124167Application Date: 2000.08.18Publication Number: 1286513Publication Date: 2001.03.07Priority Information: 1999/8/25 FR 9910790International: H02B1/22;H02B11/06;H02B11/167Applicant(s) Name: AlstomAddress: Inventor(s) Name: P. Roussel;B. Luscan;A. LiboldPatent Agency Code: 11038Patent Agent: wang maohuaAbstract The present invention relates to a double bus power transformer substation having two sets of busbar group(23, 24), each set of which located between the central row(40)of… Read More »

Energy saving transformer

Application Number: 00114898Application Date: 2000.06.02Publication Number: 1327244Publication Date: 2001.12.19Priority Information: International: H01F27/24;H01F30/12Applicant(s) Name: Xu ChunhangAddress: Inventor(s) Name: Xu DachangPatent Agency Code: 00000Patent Agent: Abstract The present invention is a energy saving transformer with three-frame iron core. The transformer consists of a three-frame iron core and a three phase winding wound onto the three columns and… Read More »

Three-phase transformer with ideal oblique joining and its usage

Application Number: 00125211Application Date: 2000.09.19Publication Number: 1283860Publication Date: 2001.02.14Priority Information: International: H01F30/12Applicant(s) Name: Wu ShimingAddress: Inventor(s) Name: Wu ShimingPatent Agency Code: 31127Patent Agent: wu anquanAbstract A three-phase transformer with ideal oblique link seams features that three single-phase transformers composed of iron core, enclosing plate, secondary winding, isolating layer and primary windign are fixed to base.… Read More »

Retrace transformer

Application Number: 00116101Application Date: 2000.09.21Publication Number: 1288242Publication Date: 2001.03.21Priority Information: International: H01F38/42Applicant(s) Name: Changhong Electrical Appliance Co., Ltd., Sichuan Prov.Address: Inventor(s) Name: Hu QihaoPatent Agency Code: 00000Patent Agent: Abstract This invented relates transformer for supply high voltage to anode of kinescope consists of (1) high voltage skeleton and (2) high voltage coil winding which is… Read More »

Auxiliary resonance commutating pole multipoint current transformer

Application Number: 00126883Application Date: 2000.09.01Publication Number: 1287402Publication Date: 2001.03.14Priority Information: 2000/6/2 DE 10027575.3; 1999/9/2 DE 19941813.6International: H02M1/00;H02M7/48Applicant(s) Name: ABB Patent GmbHAddress: Inventor(s) Name: R. TaikmanPatent Agency Code: 72001Patent Agent: cheng tianzhengAbstract An ARCP converter having a series circuit formed of at least four main switches per converter phase, which are connected electrically in parallel between… Read More »

Application of copper tube as bus bridge and insulating sleeve pipe for copper tube passing through wall in transformer station

Application Number: 00117372Application Date: 2000.08.29Publication Number: 1281279Publication Date: 2001.01.24Priority Information: International: H02G3/22;H02G5/02Applicant(s) Name: Luo ZhizhaoAddress: Inventor(s) Name: Luo ZhizhaoPatent Agency Code: 00000Patent Agent: Abstract A new application of copper tube as bus bridge and insulating sleeve pipe for copper pipe passing through wall in transformer station is disclosed. Said capper tube can replace rectangular copper… Read More »

Transformer

Application Number: 00117621Application Date: 2000.05.22Publication Number: 1325120Publication Date: 2001.12.05Priority Information: International: H01F27/24;H01F27/28Applicant(s) Name: Dafang Electronics Co., Ltd.Address: Inventor(s) Name: Jiang Shenglong;Huang Jinchu;Xue JingfuPatent Agency Code: 11105Patent Agent: li xiaoshuAbstract The present invention relates to a transformer comprising coiling bracket, I-shaped ion core, first U-shaped iron core and second U-shaped iron core. Said coiling bracket is… Read More »

High-voltage light-channel split core type current transformer

Application Number: 00110539Application Date: 2000.06.15Publication Number: 1329339Publication Date: 2002.01.02Priority Information: International: G01R15/00;H01F38/28Applicant(s) Name: Shenyang Inst. of Power Engineering TechnlogyAddress: Inventor(s) Name: Zhu Jianxin;Xu Zhiyuan;Luo HongbinPatent Agency Code: 21209Patent Agent: you juxunAbstract The present invention relates to a high-voltage optical pathway split core type current transformer, belonging to a high-voltage feeder line current parameter collecting equipment,… Read More »

AC current dividing current transformer

Application Number: 00117836Application Date: 2000.05.24Publication Number: 1325121Publication Date: 2001.12.05Priority Information: International: G01R15/00;H01F38/30Applicant(s) Name: Pan YumingAddress: Inventor(s) Name: Pan YumingPatent Agency Code: 15101Patent Agent: su aihuaAbstract The A.C. shunt current transformer, is characterized by that on the shunt conductor a shunting hole is opened, the upper frame of said shunting hole is equipped with A.C detector,… Read More »

In-line chromatographic monitor of transformer oil and its monitor method

Application Number: 00110786Application Date: 2000.08.14Publication Number: 1299056Publication Date: 2001.06.13Priority Information: International: G01N30/02;G01N30/04Applicant(s) Name: Zhao FushengAddress: Inventor(s) Name: Zhao FushengPatent Agency Code: 21117Patent Agent: he junAbstract An on-line monitoring equipoment for transformer oil chromatic spectrum has one main controller to control the outer piping and sampling device to get the true oil sample and to make… Read More »

Step-up transformer for high freguency heater

Application Number: 00118018Application Date: 2000.06.05Publication Number: 1282081Publication Date: 2001.01.31Priority Information: 1999/6/3 JP 155881/99; 2000/5/26 JP 156180/00International: H01F27/28;H01F27/32;H01F30/06;H02M5/40;H05B6/36Applicant(s) Name: Sharp K.K.Address: Inventor(s) Name: Takamo Toyo;Masuda ShinichiPatent Agency Code: 72001Patent Agent: yang yongAbstract A boosting transformer for a high-frequency heating device includes an insulation member, and a primary winding and a secondary winding formed at the insulation… Read More »

Transformer for microwave oven

Application Number: 00109886Application Date: 2000.07.11Publication Number: 1282083Publication Date: 2001.01.31Priority Information: 1999/7/26 KR 99-30303International: H01F30/00;H01F27/24;H01F27/30;H01F41/00;H05B6/64Applicant(s) Name: Samsung Electronics Co., Ltd.Address: Inventor(s) Name: Kim Chol-ChimPatent Agency Code: 11021Patent Agent: zhu jinguiAbstract A transformer for a microwave oven is provided to prevent a quality deterioration of a transformer for a microwave oven due to a damage of an… Read More »

High voltage transformer used for microwave oven and its manufacturing method

Application Number: 00109003Application Date: 2000.06.01Publication Number: 1282970Publication Date: 2001.02.07Priority Information: 1999/7/28 KR 99-30786International: F24C7/02;H01F27/40;H01F30/06;H01F38/00;H05B6/64Applicant(s) Name: Samsung Electronics Co., Ltd.Address: Inventor(s) Name: Kim Chul-ChinPatent Agency Code: 11021Patent Agent: liu xiaofengAbstract A high voltage transformer for a microwave oven includes a core, and primary and secondary coils. An insulation molding part encloses at least a part of… Read More »

Line interface transformer

Application Number: 00108264Application Date: 2000.04.28Publication Number: 1274164Publication Date: 2000.11.22Priority Information: 1999/4/29 US 60/131,585International: H01F19/02;H01F30/06Applicant(s) Name: Bellfiss Inc.Address: Inventor(s) Name: Robert A. MullPatent Agency Code: 31100Patent Agent: gu junfengAbstract A line interface transformer having a transformer core disposed in an off center cavity formed in the transformer housing. Line side interface terminals are located on one… Read More »

Piezo transformer inverter

Application Number: 00106490Application Date: 2000.04.10Publication Number: 1270439Publication Date: 2000.10.18Priority Information: 1999/4/9 JP 102199/99International: H02M7/42;H05B41/26;H05B41/288Applicant(s) Name: Murata Manufacturing Co., Ltd.Address: Inventor(s) Name: Numa Takatsugu;Morishima SeiyukiPatent Agency Code: 31100Patent Agent: shen zhaokunAbstract The present invention provides a piezoelectric transformer inverter, which can suppress ripples generated by the oscillations of a transformer, and can reduce the possibility of… Read More »

High voltage transformer

Application Number: 00106450Application Date: 2000.04.07Publication Number: 1270397Publication Date: 2000.10.18Priority Information: 1999/4/8 EP 99106932.9International: H01F38/42Applicant(s) Name: Thomson Television Components France S. AAddress: Inventor(s) Name: M. Marfroy;D. Goundey;S. NigofPatent Agency Code: 11105Patent Agent: li xiaoshuAbstract The high-voltage transformer comprises a core, a primary winding, a high-voltage winding arranged in a coil former, and a housing, whereat the… Read More »

Assembly-less stress sensor head for magneto-optical current transformer

Application Number: 00105939Application Date: 2000.04.21Publication Number: 1267833Publication Date: 2000.09.27Priority Information: International: G01R15/14Applicant(s) Name: Qinghua Univ.Address: Inventor(s) Name: Luo Chengmu;Ma Xianyun;Wang TingyunPatent Agency Code: 11201Patent Agent: luo wenqunAbstract The stress sensor head consists of a casing, a glass sensor head and current conductor. The current conductor is placed inside an aluminum alloy cylinder with an insulating… Read More »

Analogue signal processor for magneto-optical current transformer

Application Number: 00105931Application Date: 2000.04.21Publication Number: 1267832Publication Date: 2000.09.27Priority Information: International: G01R15/14Applicant(s) Name: Qinghua Univ.Address: Inventor(s) Name: Luo Chengmu;Wang Tingyun;Ma XianyunPatent Agency Code: 11201Patent Agent: luo wenqunAbstract The analogue signal process or includes a pre-amplifier to receive and amplify the photoelectronic signal output by the photoelectronic detector, an AC channel to amplify the signal from… Read More »

Phase-loss fuse protector for transformer station

Application Number: 00104892Application Date: 2000.04.03Publication Number: 1267114Publication Date: 2000.09.20Priority Information: International: H02H7/04;H02H7/22Applicant(s) Name: Hebei Electric Power Equipment FactoryAddress: Inventor(s) Name: Yu Dexiang;Chen Zhongqiang;Xie JinboPatent Agency Code: 13104Patent Agent: chang yumengAbstract A phase-loss fuse protector for transformer station is composed of negative-sequence voltage detecting circuit, negative sequence filter,voltage transformer, rectifier, comparator and delay circuit for single… Read More »