THE ADVANTAGE OF MARCUS WATT+PLUS^TM TECHNOLOGY

Marcus WATT+PLUS technology means superior performance, maximum efficiency and lowest losses with all types of load – under all conditions.

We use the T-T connection for our three phase distribution transformers to derive the inherent benefits of single phase construction: high short-circuit strength, rugged physical integrity and superior reliability.  These characteristics are normally available only on pole-mounted utility-grade, oil-filled transformers where every watt lost and every hour of downtime is critical.

ENERGY EFFICIENCY

Trough the use of 100% copper windings, liberal designs and wound cores, all Marcus general purpose transformers have efficiencies above the minimal of CSA 802.200 standard.  Low magnetizing currents averaging 1% of rated amperage mean that more power is available to handle useful customer load.  Because of their efficient design, our transformers comply with the CSA-802-94 standard for maximum losses.

ANGULAR RELATIONSHIPS

Characteristics of Marcus transformers with the T-T connection include

§         30° or 0° phase displacement between primary and secondary

§         120° phase angular relationship between the line voltages and between the       line currents

VOLTAGE REGULATION

Interlacing of windings on both coils for better coupling results in superior regulation with a maximum of 2.5% voltage drop at 1.0 power factor.  This means higher peak loads are possible before minimum low voltage limitations are reached, allowing required voltages to be applied to critical equipment at greater distances.

BALANCED VOLTAGES

Even under the most severely unbalanced load conditions, a Marcus transformer with its 'stiff' internal neutral will not shift, ensuring that phase voltages are the same to within .2%.