DL53 is an AC Dynamometer built by DALA Lab for motor and controller testing. Major function modules of DL53 Dynamometer includes: AC load, data acquisition and analyses unit, power supply unit, air-cooler and water-cooling system, CPU. Rated power 53KW, torque 253N.m, highest RPM 9000r/min.

Advanced Control and Load Capability

The load motor DL53 uses is Siemens water-cooled AC induction motor 1PH8 series, with rated specifications: 53 KW, 253 N.m, 9000 RPM. Integrated with Siemens G120 series variable frequency drive, DL53 allows precision load and torque control.

High Accurate Current Transducer

DL53 uses LEM (Switzerland) ITN 900-S Ultrastab high accurate current transducer for non-contact phase current and DC bus current testing, Measures to 900 ADC, accuracy: ±0.00115%F.S.

Digital Power Analyzer

DL53 dynamometer uses Yokogawa’s WT333 digital power analyzer, accuracy ±0.1%F.S, to analyze current, voltage and power signals.

Why DL53?

The performance of a motor controller drive capacity is presented through the reaction relationship of motor RPM, torque and efficiency.

1.Toque-speed Characteristic

Efficiency Map

Analyze based on those data captured and charts drawn by DL53 precision dynomameter, DALA is capable to quickly optimize algorithm like Field-Oriented Control (FOC), Field Weakening Control, and program motor parameters.

2. Temperature Rise Test    

Under same operating condition, the temperature rise test may be one of the major tests tell us how is the controller’s performance. Thermal damage is most frequently occurred to motor controllers, therefore run temperature rise test is essential when develop controllers. Using DL53 can run and test controllers with different torque-speed loadings, to monitor and verify whether the characteristic of controller meet our designed standards.

3. Reliability Test

The reliability test of DALA controllers is designed to meet specified applications, by selecting a proper torque loading cycle and continuous load to test in sequence, acquits the whole process data and analyze for the reliability of controllers, including MTTFF and MTBF.

The DL53 dynamometer allows DALA R&D to know how is the performance of controllers we develop, accelerate the new product developing, improves algorithm and helps us to provide reliable motor controllers to all of our customers.