Portable Resistive Load Bank
A portable resistive load bank comprising 12 individual switched load resistances arranged in three banks of four for Star or Delta connection.
The Power Factor Load Bank is a free-standing and mobile unit. It gives predictable load and power factor characteristics, useful for many different power systems experiments. It also helps to show the principles of a static VAr compensator used in industrial plants and large factories.
The load bank provides three separate inputs: Lines 1, 2 and 3. This allows it to work with single and three-phase circuits. Each line is independent, which allows it to connect with the others as a star or delta load.
The load bank includes three separate banks of resistive, inductive and capacitive loads. They give a choice and combination of types of loads to give unity (resistive only) and leading or lagging power factor. A voltage-selector switch allows the load bank to work with different line voltages for single and three-phase circuits. Each bank (line) may be set to different values, to give an unbalanced load for balanced and unbalanced load tests.
The top of the load bank includes a useful worktop for any additional instruments or for recording results. The load bank has small wheels, for easy mobility. This saves time setting up experiments and clearing the classroom or laboratory after use.
Learning OutcomesKey FeaturesRecommended Ancillaries
When used with other suitable equipment for the Power Systems Laboratory range it can show:
PSL10 - EXPERIMENT
Provides typical generator performance characteristics for experiments in generation, synchronising and paralleling, and load sharing.
PSL30 - EXPERIMENT
Investigates short, medium and long transmission line performance in single-phase and three-phase systems.
A portable resistive load bank comprising 12 individual switched load resistances arranged in three banks of four for Star or Delta connection.
A three-phase and earth fault directional overcurrent relay presented in an educational format to enable investigations into the protection and monitoring of generator and transformer schemes, overhead lines, underground cables and backup on HV systems.
A distance protection relay presented in an educational format to enable investigations into the protection and monitoring of overhead transmission lines.