The NR8300 series fully automatic motor integrated testing system adopts advanced virtual instrument technology, combining the powerful computing capabilities of computers with the hardware measurement and control capabilities of instruments and equipment. Through software, it controls the test and performs calculations, analysis, processing, display, printing, and storage of data. The system's functionality far surpasses that of a simple combination of general instruments, particularly in terms of result saving, waveform storage, synchronous measurement, test report generation, system expandability, and multi-functionality, surpassing traditional manual test benches.
The entire system is fully automated, fully computerized, and highly efficient, with safety features to prevent misoperation. It features a Windows Chinese interface, automatically collects measurement data, automatically calculates results, automatically generates factory test reports and prints output. The measurement and control system uses PLC programming control, making it particularly suitable for occasions with high product requirements and batch testing.
Motor testing uses instruments, meters, and related equipment to inspect the electrical performance, mechanical performance, safety performance, and reliability of semi-finished and finished products in the motor manufacturing process, or products with motors as the main component, according to relevant regulations. These inspections can fully or partially reflect the relevant performance data of the tested motor. This data can be used to determine whether the tested motor meets the design requirements, the quality, and the goals and direction for improvement. Motor testing and inspection are essential parts of the motor research, production, and maintenance process. Therefore, for units engaged in motor research, production, or maintenance, having a set of motor testing and inspection equipment that meets the requirements is very necessary.
◆ Basic Components of the Test System
The test system consists of a test power supply, a power switch cabinet, signal sensing devices and power measurement equipment, an automated test measurement unit and control console, an AC motor test software system, and a database system. The load equipment in the type test can be selected according to user requirements, including test motors (including DC generators, AC generators, wound rotor motors), eddy current dynamometers, magnetic powder dynamometers, magnetic powder brakes, etc., to meet the needs of type testing for different motors.
◆ Measurement Method: Microcomputer Measurement
The measurement cabinet is equipped with current and voltage sensors. The intermediate stage uses signal conditioning interface modules, and the computer completes the signal acquisition and measurement tasks.
◆ Control Method: Automotive-Grade MCU Direct Control
It uses automotive-grade microcontrollers from Siemens of Germany for interlocking control. The interlocking program can be customized and modified according to user requirements. The control system is stable and has good system expandability.
◆ Operation Method: Manual and Automatic Operation
To avoid affecting the test work in case of microcomputer failure, a combination of manual control (panel button operation) and automatic control (computer keyboard/mouse operation) is used. If automatic control is inconvenient or the microcomputer malfunctions, manual operation can be used for testing.
◆ Test Data Processing: Test Results Saved in the Industrial PC or Server
The microcomputer test bench is equipped with original industrial computers from well-known domestic and international brands. The automatically tested results are directly saved to the hard disk of the test industrial PC. Manually measured data can be manually entered into the test software interface and then saved in the storage device. It provides local database functionality for local query and access to test data. It has an automatic test report generation function and provides output printing functionality (HP multi-function laser printer is configured).
◆ High measurement accuracy and good repeatability.
◆ Stable control system performance and good system expandability.
◆ Design Principles: The design principles are reliability, safety, economy, practicality, operability, and maintainability, while also considering advancement.
◆ Applicable Range: Meets rated voltages of 380V, 660V, 1140V, 3300V, 6000V, 10000V; rated power of 1-15000kW, factory and maintenance tests for three-phase motors (voltage level can be customized according to customer's actual requirements).
◆ Test Items: Ambient temperature measurement, insulation resistance measurement, DC resistance measurement (calculating three-phase resistance imbalance), power frequency withstand voltage test, inter-turn withstand voltage test, no-load test (calculating three-phase current imbalance), locked-rotor test, load test, efficiency test, temperature rise test (users can select the above test items according to their own requirements).
◆ The system completes the measurement and calculation of voltage, current, power factor, active power, reactive power, efficiency, frequency, output torque, output speed, output power, and temperature rise.
