Measuring accuracy of electric energy in HV power networks

• Autorzy: Jałmużny W.
• Języki publikacji: EN

Abstrakty

EN

The article presents the effect of secondary circuits of inductive current and voltage transformers on measuring accuracy in HV power networks. The basic parameters of instrument transformers were defined, such as errors or rated output. The impedance effect of the leads connecting secondary terminals with measuring instruments and the impact of burden power on the energy measuring error were analyzed. The calculation samples illustrate the procedure when assessing energy (power) measuring error. The algorithm may be applied, with positive results, by the operating personnel of measuring circuits with instrument transformers.

Słowa kluczowe

EN

electric energy measuring; instrument transformers; measuring accuracy

• Wydawca: AGH University of Science and Technology ; Lodz University of Technology
• Czasopismo: Electrical Power Quality and Utilisation. Journal
• Rocznik: 2005
• Tom: Vol. 11, nr 1
• Strony: 3--15
• Opis fizyczny: Bibliogr. 2 poz.

Twórcy

autor

Jałmużny W.

• Technical University of Lodz, Department of Applied Electrical Engineering and Instrument Transformers, ul. Stefanowskiego 18/22, 90-924 Łodz, Poland, tel: [phone],

Bibliografia

• 1. lEC 60044- I 1996, Instrument transformers - Part I: Current transformers.
• 2. lEC 60044-2:1997, Instrument transformers - Part 2: Inductive voltage transformers.