JPS579261A - Electric power supplying circuit - Google Patents

Electric power supplying circuit

Info

Publication number
JPS579261A
JPS579261A JP8104880A JP8104880A JPS579261A JP S579261 A JPS579261 A JP S579261A JP 8104880 A JP8104880 A JP 8104880A JP 8104880 A JP8104880 A JP 8104880A JP S579261 A JPS579261 A JP S579261A
Authority
JP
Japan
Prior art keywords
impedance
represented
becomes
small
shortcircuitting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP8104880A
Other languages
Japanese (ja)
Other versions
JPS6251073B2 (en
Inventor
Yukio Onoki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EIWA DENKI KK
Daihen Corp
Original Assignee
EIWA DENKI KK
Daihen Corp
Osaka Transformer Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EIWA DENKI KK, Daihen Corp, Osaka Transformer Co Ltd filed Critical EIWA DENKI KK
Priority to JP8104880A priority Critical patent/JPS579261A/en
Publication of JPS579261A publication Critical patent/JPS579261A/en
Publication of JPS6251073B2 publication Critical patent/JPS6251073B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/10—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers

Abstract

PURPOSE:To reduce the leakage impedance and to suppress a shortcircuitting current in an electric power supplying circuit by winding two sets of primary and secondary coils on three leg cores, connecting the respective primary coils in series, and connecting the respective secondary coils through impedances in parallel. CONSTITUTION:When power source voltage is represented by E, load currents are represented by IA, IB, leakage impedance is represented by ZT and parallel impedance is represented by Z, VA=VB(E/2)-(1/4)(IA+IB)ZT - or + (1/4)(IA-IB)Z is obtained. Since the coil is so wound that the leakage impedance ZT becomes small and the impedance becomes, when the capacity of a transformer is increased, small, the voltage drop caused by the load current becomes, when the capacity of the transformer becomes large, small. When a shortcircuit accident, for example, occurs in a line 3 and ZA=0, ZB=infinity are obtained, VA=(E/2)-(1/4)IAZT-(1/4)IAZ=0 is obtained, with the result that the shortcircuitting current becomes IA=(2E)/ (ZT+Z). When the impedance Z is accordingly increased, the shortcircuitting current can be suppressed to small value.
JP8104880A 1980-06-16 1980-06-16 Electric power supplying circuit Granted JPS579261A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8104880A JPS579261A (en) 1980-06-16 1980-06-16 Electric power supplying circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8104880A JPS579261A (en) 1980-06-16 1980-06-16 Electric power supplying circuit

Publications (2)

Publication Number Publication Date
JPS579261A true JPS579261A (en) 1982-01-18
JPS6251073B2 JPS6251073B2 (en) 1987-10-28

Family

ID=13735527

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8104880A Granted JPS579261A (en) 1980-06-16 1980-06-16 Electric power supplying circuit

Country Status (1)

Country Link
JP (1) JPS579261A (en)

Also Published As

Publication number Publication date
JPS6251073B2 (en) 1987-10-28

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