FLUKE RD-33 Dytronic Three-Phase Reference Standard

PRODUCT HIGHLIGHTS

The Radian RD-33 Three-phase Electricity Reference Standard achieves a level of accuracy and performance never before available in a portable standard. The RD-33 has a guaranteed accuracy of 0.01% for all measurement functions across its entire operating range, with a typical accuracy that is within traceability uncertainties. This guaranteed accuracy specification includes the variables of stability, power factor, and traceability uncertainty.

The RD-33 utilizes Radian’ s new Dytronic measurement technology consisting of a Radian designed Integrating Analog to Digital Signal Converter. Unlike off-the-shelf A/ D Converters used in other instruments, Radian’ s A/ D Converter is specifically designed and optimized for power and energy measurement. This unique design makes the RD-33 absolutely unsurpassed in its ability to accurately measure “ real world” waveforms. The RD-33’ s A/ D Converter is combined with Radian’ s renowned electronically compensated voltage and current input transformers and a hermetically sealed reference set to provide the highest degree of accuracy, stability and versatility offered in a portable three-phase standard.

MEASUREMENTS

The RD-33 is a four quadrant three-phase measuring instrument that registers both forward and reverse energy flow and provides per phase voltage, current, power and energy ( Active, Reactive, Apparent) information.

ANALOG SENSE

The optional analog sense feature enables testing of transducers and electronic energy meters that provide an analog current output between + / – 20 mA.

METER AND STANDARD TESTING

The RD-33 can be used with a controlled current source to test revenue meters and reference standards. In field applications the RD-33 can perform a true three phase meter accuracy test using existing service load. Pickups to sense meter disk rotation or calibration pulses of infrared, visible light or KYZ variety plug directly into the unit. The RD-33 is ideal for testing high end energy meters found in power plants, substations, inter-tie points and at large utility customer accounts. The RD-33 is also the perfect complement to relay test sets where it can serve as an active reference standard when testing meters or can be used to periodically certify the accuracy of the test set itself.