Energy Management Products
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----Magrrelab Carrent Transformers (CT) operate on the basic principal of the ratio — -anehettrrent (1^ to the secondary winding (N2) and current (l2): The main considerations are the required voltage ratios. This is mathematically expressed using Faraday’s law of induction: Vout=NdO/dt Where, Vout is the resulting instantaneous voltage, N is the number of turns on the coil being induced, dO is the amount of change in magnetic flux, and dt is the time of the change in flux.

power transformer described above, a current transformer normally looks more at the turns ratio ?d. For example, to measure a 500 amp conductor using a 5 amp output, the following ratio 500/5 = 100 Assuming a 1 turn primary, a 100 turn current transformer would be required around the conductor under test in order to output 5 amps. That output would then need to be conditioned by a circuit to develop a voltage usable for measurement. Magnelab current transformers are designed with the output pre-set to an ANSI standard of 0.333 volts using a calibrated internal burden resistor. This reduces...

SPLIT-CORE AC CURRENT SENSOR 0.75” ID OPENING WITH 1 TO 200 AMP RATINGS Split-core current transformers “sense” AC current from 1 to 200 Amps passing through the center conductor. Split-core .trams; -installation, on existing electrical wiring by snapping around the conductor. The Magnelab SCT series have of the highest industi -for interleaving joints and the self-locking mechanism. FEATURES » Rated input from 1 Amp to 200 Amp » 0.333 Volt AC output at rated current » Accuracy ± 1% » Accuracy at 10% to 130% of rated current » Operates from 50 Hz to 400 Hz » Phase angle < 2 degrees measured...

SPLIT-CORE AC CURRENT SENSOR 1.25” ID OPENING WITH 50 TO 600 AMP RATINGS ^■•transformers “sense” AC current from 50 to 600 Amps passing through the center conductor. Split-core transformers are ideal for -iflstallatton-orvexisting electrical wiring by snapping around the conductor. The Magnelab SCT series have of the highest industry standards both joints and the self-locking mechanism. FEATURES » Rated input from 50 Amp to 600 Amp » 0.333 Volt AC output at rated current » Accuracy ± 1% » Accuracy at 10% to 130% of rated current » Operates from 50 Hz to 400 Hz » Phase angle < 2 degrees...

SPLIT-CORE AC CURRENT SENSOR 2.00” ID OPENING WITH 100 TO 1500 AMP RATINGS Split-core current transformers “sense” AC current from 100 to 1500 Amps passing through the center conductor. Split-core transformers are ideal for installation on existing electrical wiring by snapping around the conductor. The Magnelab SCT series have of the highest industry standards both for interleaving joints and the self-locking mechanism. FEATURES » Rated input from 100 Amp to 1500 Amp » 0.333 Volt AC output at rated current » Accuracy! 1% » Accuracy at 10% to 130% of rated current » Operates from 50 Hz to...

SPLIT-CORE AC CURRENT SENSOR 3.00” ID OPENING WITH 400 TO 3000 AMP RANGES Sptit-coro-eufrent “sense” AC current from 400 to 3000 Amps passing through the center conductor. Split-core transformers are ideal ■for installation on existing electrical wiring by snapping around the conductor. The Magnelab SCT series have of the highest industry standards both for interleaving joints and the self-locking mechanism. FEATURES » Rated input from 400 Amp to 3000 Amp » 0.333 Volt AC output at rated current » Accuracy! 1% » Accuracy at 10% to 130% of rated current » Operates from 50 Hz to 400 Hz »...

MUD-CORE AC CURRENT SENSOR 5 SIZES IN A VARIETY OF CURRENT RATINGS Magnelab offers a series of five AC current sensors with different hole sizes and current ratings. All UCT models are better than one percent accuracy and less than one degree phase angle. Output is controlled by a precision resistor fixed at the industry standard of 0.333 Volt AC. The rugged epoxy encapsulated construction comes with eight feet twisted leads. All closed current sensor models come with UL approval. Please contact Magnelab for other ratings and customized designs. FEATURES » 0.333 Volt AC output at rated...

•fhe-potential transformer provides a linear output voltage proportional to the input voltage. The SPT potential transformers do not saturate for ■overtftV; and the rugged epoxy potted construction makes it suitable for installation in harsh environments. The output voltage is ANSI standard ‘Of 0.333 volt making the SPT series ideal for data loggers and other electronic measuring instrumentation. » Phase angle < 1 degree » Input leads 14 AWG 8 ft. long » Output leads 22 AWG 8 ft. long » UL recognized FEATURES » Rated input from 115 Volts to 460 Volts » 0.333 Volt AC output at rated...

The basic operating principle of a Rogowski coil was first postulated in 1912 by Rogowski et al. lt' described that a closely wound coil over a nonmagnetic former of constant cross sectional area arid'closed loop configuration, will detect an induced voltage which is proportional to the rate of change of the current flowirigTn the wire surrounded by the coil. In the figure below, the generalized schematic of such a configuration is shown along with the corresponding physical RopeCT® product that is manufactured by Magnelab. In terms of physical formulation, V= M d\/dt Where V=voltage...

24 INCH ROGOWSKI COIL Magnelab flexible RopeCT® measures AC current rated from 500 to 5,000 Amps. The coil opens at the connector junction and can be installed on an existing cable or buss-bar in a matter of seconds. FEATURES » Rated input from 500 Amp to 5000 Amp » Output of 0.333 Volt AC at rated current » Accuracy ± 1% » Accuracy at 10% to 300% of rated current » Phase angle < 0.5 degrees measured at 50% rated current » 4 ft. insulated leads » UL recognized » Custom output and other parameters are available MAGNELAB PART RATING RCT-2400-0500...