Global Patent Index - EP 1102997 A1

EP 1102997 A1 2001-05-30 - A CURRENT SHUNT

Title (en)

A CURRENT SHUNT

Title (de)

SHUNTWIEDERSTAND

Title (fr)

DERIVATION DE COURANT

Publication

EP 1102997 A1 (EN)

Application

EP 99936897 A

Priority

  • IB 9901400 W
  • ZA 9807071 A

Abstract (en)

[origin: WO0008476A1] A current shunt (10) comprises a bundle of four rigid round cylindrical conductors (12.1, 12.2, 12.3, 12.4) arranged in a square two-on-two configuration. Clamping collars (18) are provided at opposite ends on the bundle of conductors for holding them together, and a Z-terminal (22, 24) extends from each clamping collar. Corresponding shunt wires (30, 32) similary extend from each clamping collar, and lead to a metering IC (43). The bundle of elongate conductors have a non-uniform resistance which provides a measurable voltage output proportional to mains current over an operating current range. At least one external compensating resistor (R1, R2) may be provided to compensate for the non-uniform resistance of the current shunt. The current shunt is sized to fit into a DIN housing (36), and typically forms part of a single- or multi-phase electricity meter.

IPC 1-7 (main, further and additional classification)

G01R 1/20; G01R 22/00

IPC 8 full level (invention and additional information)

G01R 1/20 (2006.01); G01R 22/00 (2006.01)

CPC (invention and additional information)

G01R 1/203 (2013.01); G01R 22/00 (2013.01)

Citation (search report)

See references of WO 0008476A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 0008476 A1 20000217; AU 5186699 A 20000228; EP 1102997 A1 20010530

INPADOC legal status


2003-09-24 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20021227

2002-02-06 [RAP1] TRANSFER OF RIGHTS OF AN APPLICATION

- Owner name: E-TRONICS (PROPRIETARY) LIMITED

2002-02-06 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: E-TRONICS (PROPRIETARY) LIMITED

2001-10-31 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010918

2001-05-30 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010306

2001-05-30 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2001-05-30 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI