Title:
VA measurement in electric equipment of delta connection
Document Type and Number:
Japanese Patent JP6246323
Kind Code:
B2
Abstract:
An arrangement includes an A/D converter and a processing circuit. The A/D converter is configured to generate digital samples of voltage and current waveforms in a polyphase electrical system. The processing circuit is operably coupled to receive the digital samples from the A/D converter. The processing circuit configured is to obtain contemporaneous phase current and voltage samples IA, IB, IC and/or IN, and VA, VB, VC. The processing circuit is further configured to determine at least ICB sample values based on three of the current samples of IA, IB, IC, and IN, and determine a VA value based at least in part on ICB. The processing circuit is further configured to provide information representative of the VA calculation to one of a group consisting of a display, a communication circuit, a memory and a billing calculation unit.
Inventors:
Mond daniel
Application Number:
JP2016507705A
Publication Date:
December 13, 2017
Filing Date:
April 14, 2014
Export Citation:
Assignee:
Landis + Gear Incorporated
International Classes:
G01R21/133; G01R21/00; G01R22/06
Domestic Patent References:
| JP2011169619A | ||||
| JP6443766A | ||||
| JP7120510A | ||||
| JP11344514A |
Foreign References:
| US5652505 | ||||
| US20130046663 |
Attorney, Agent or Firm:
Kunio Ueda
Junichiro Yanagi
Mayumi Oguri
Kunihiko Takeuchi
Junichiro Yanagi
Mayumi Oguri
Kunihiko Takeuchi
Previous Patent: Application of an intermittent receiving (DRX) cycle
Next Patent: METHOD AND DEVICE FOR ROLLING HOT-ROLLED STOCK
Next Patent: METHOD AND DEVICE FOR ROLLING HOT-ROLLED STOCK