The rated power describes the machine, while the load power depends on the test setup, power supply, and available load equipment. Therefore, a large motor can be mechanically and electrically tested without each test step being performed at full rated load. We clearly define which results are measured directly and which are derived from partial tests.

The starting point is the scope of the repair, the design, the nominal values, the subsequent operating conditions, and the required acceptance criteria. From this, we select electrical, mechanical, thermal, and, if necessary, load tests. Technical limitations and alternative verification methods are agreed upon with the customer before testing.

Large engines often require the designated auxiliary systems or technically suitable backup power supplies for a safe test run. Oil quantity, pressure, temperature, cooling water requirements, and interfaces influence the setup and measurement conditions. A missing or unsuitable supply can distort the test or endanger the machine.

We require information on dimensions, weight, center of gravity, attachment points, shaft height, foundation or foot dimensions, and details regarding storage and cooling. Additionally, we clarify transport conditions, accessories, connection data, and any necessary auxiliary structures. This allows us to safely prepare for unloading, setup, coupling, and testing procedures.

Even without full rated load, defined electrical, mechanical, and thermal tests can provide important evidence. The conclusions drawn depend on which measurements are directly recorded, under which conditions they are taken, and which calculations are used. Limits of the transferability of the results are explicitly documented in the test concept and report.