Insulation Measurement and Supervision in Live AC and DC Unearthed Systems
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Beschreibung
Low voltage unearthed (IT) AC and DC systems are commonly applied for supply of power and control circuits in industry, transportation, medical objects etc. The main reasons for their use are high reliability and numerous advantages offered by isolating them against ground. Insulation level is a decisive factor for networks operational reliability and safety. Insufficient insulation-to-ground resistance can cause various disturbances. Though ground faults in IT systems do not make networks operation impossible, they may cause severe problems with their safe functioning. In this book the most important issues concerning normal operation and ground fault phenomena are described in concise form. Numerous methods of insulation resistance and capacitance measurement in live circuits are presented. Important other procedures of these parameters determination based on measurement and calculation are explained and reviews of selected insulation resistance measurement devices as well as earth fault locating systems are included. For the text understanding merely basic knowledge of electrical circuits theory is required. This book is addressed to electrical engineers, technicians and students of this specialty and may also serve as an academic handbook.
This book describes in concise form the most important issues concerning normal operation and ground fault phenomena. The authors present numerous methods of insulation resistance and capacitance measurement in live circuits.
Low voltage unearthed (IT) AC and DC systems are commonly applied for supply of power and control circuits in industry, transportation, medical objects etc. The main reasons for their use are high reliability and numerous advantages offered by isolating them against ground. Insulation level is a decisive factor for networks operational reliability and safety. Insufficient insulation-to-ground resistance can cause various disturbances. Though ground faults in IT systems do not make networks operation impossible, they may cause severe problems with their safe functioning.
In this book the most important issues concerning normal operation and ground fault phenomena are described in concise form. Numerous methods of insulation resistance and capacitance measurement in live circuits are presented. Important other procedures of these parameters determination based on measurement and calculation are explained and reviews of selected insulation resistance measurement devices as well as earth fault locating systems are included. For the text understanding merely basic knowledge of electrical circuits theory is required. This book is addressed to electrical engineers, technicians and students of this specialty and may also serve as an academic handbook.
Provides insight into important issues concerning AC and DC IT systems incl. a basic theory of operation caused by ground insulation deterioration
Presents practical methods of insulation resistance and capacitance measurement in live networks with derivation of formulas
Presents commonly used monitoring devices and systems and an explanation of their settings selection
Autor*in
Piotr Olszowiec
Themen in »Insulation Measurement and Supervision in Live AC and DC Unearthed Systems«
Electrcial Engineering Ground Fault Phenomena Insulation Monitoring in AC and DC IT Systems