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46 | Page. Magneto Optic Current Transformer Technology (MOCT). Attish Jain. Btech, Eee, Srm University Kancheepuram Kattankulathur -603203. Abstract: An accurate electric current transducer is a key component of any power system instrumentation. To measure currents power stations and substations conventionally
Optical current transformers (CTs) have the advan- tages that they can be made much smaller and lighter than conventional electromagnetic induction transformers by their simple structure, and contribute to improvement of equipment reliability because of their excellent surge resis- tance performance. The authors consider
proportional to the amount of current flowing in the primary conductor. This magneto-optic activity is known as the Faraday effect. The failure of the metering current transformers on the 34509 line at Gibson Station Switchyard provided an ideal opportunity to apply the new. MOCT technology. One advantage of the MOCT's.
14 Mar 2014 Optical Current Transformer is an alternative to the existing conventional current transformers, providing an advanced measurement solution for both metering a
Abstract—Several manufacturers offer optical current trans- formers (OCTs) to replace the conventional magnetic current transformers (CTs). This paper compares the performances of some commercially available optical and conventional CTs. The steady state and transient responses of the two systems are compared in a
10 Oct 2013 Optical current transformers based on optical fibre sensors are now being developed worldwide [1–4]. In comparison with conventional transformers, optical fibre current sensors (OFCS) are compact and lightweight, easy to install, immune to electromagnetic noise, and they offer a wide measurement.
Application. The Magneto-Optic Current Transformer (MOCT) is a passive optical current transducer which uses light to accurately measure current on high voltage systems. The MOCT system is suitable for outdoor application and has an accurate metering current range from less than 5 A to 3150 A using the same sensor.
Fiber Optics Current Sensor – Free Standing. ? ABB's newly developed product family of Fiber Optics Current. Sensor- Free Standing (FOCS-FS) offers significant improvements over conventional CTs and facilitates direct introduction of digital process bus in HV substations. ? This new design exceeds magnetic CT
This paper investigates the possibility of instead using a Faraday effect-based opto-magnetic field sensor technique for fault detection in IGBT-switched current lines. Firstly, possible techniques, optical and non-optical, are reviewed with a special focus on optical sensing techniques. An optical sensing technique using a
25 Apr 2015 Abstract –The development of power electrical systems causes attention to accuracy of protection elements and measurement values. So we need some new measuring devices with high accuracy for power transmission lines. One of these devices is Optical Current Transformer (OCT). Optical current.

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January 2025