APLUS - The system for heavy-current analysis
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^CAMILLE BAUER Vector diagram CAMILLE BAUER Rely on us. • System state acquisition Monitoring unit • Remote control and maintenance • Universal process I/O • Open communication Energy management • Data display Monitoring operating resources Data recording • Power quality analysis S fstem for -current analysis

One device series – A variety of functions The APLUS is a powerful platform for measuring, monitoring and analyzing power systems. The focus is on highest Swiss quality and maximum customer benefit. This universal measurement device is available in three major versions: With TFT or LED display or in top hat-rail version without display. It can be easily integrated into the process environment on site. It provides a wide functionality, which may be further extended by means of optional components. The connection of the process environment may be performed by means of the communication...

The APLUS can be adapted fast and easily to the measurement task by means of the CB-Manager software. The universal measurement system of the device may be used directly for any system, from single phase up to 4-wire unbalanced networks, without hardware modifications. Independent of measurement task and outer influences always the same high performance is achieved. The measurement is performed uninterrupted in all four quadrants and can be adapted to the system to monitor in an optimal way. The measurement time as well as the expected system load can be parameterized. The device can...

Energy management The APLUS provides all functions needed to collect fast and efficient load data for an energy management system. A system composed of APLUS devices promises maximum accuracy and highest performance for each individual measurement point when used in power distributions. It can satisfy the following basic requirements: • Recording load curves (Energy consumption over time) • Acquisition of energy consumption summaries • Automatic meter readings (calendric) • Peak-load monitoring • Trend analysis of present demand • Load switch-off to prevent penalties An energy optimization...

Power quality analysis instead of failure analysis In the world of standards the quality of a grid is defined using statistical deviations from a desired standard behaviour. But what’s really needed when monitoring power quality is a statement if the used operating resources will work undisturbed under the real existing conditions. The APLUS therefore does not work with statistics, but examines the real environment, to allow performing a corresponding immunity analysis. Almost all important aspects of power quality can be investigated and interpreted. Variation of the system load The...

Operating behavior monitoring Monitoring service intervals Many operating resources must be maintained regularly. Their service intervals often depend also on the prevailing operating conditions. For monitoring these intervals three operating hour counters are provided, which by means of limit values, digital feedback signals or a suitable combination of the same may be used to determine the • loads operating time under normal conditions • loads operating time under overload conditions Another operating hour counter is used to measure the time the APLUS itself has been switched on....

The display • Clear and explicit display of measured data • Free composition of measurement displays • Alarm handling • Device configuration • Reset of minimum / maximum values • Reset of meter contents • Free definable plaintext display for alarming • Preference display and roll mode You may select optionally either a TFT or LED display for on-site data visualization. The TFT color display mainly focus on modern design, graphical analysis and language specific operation, whilst the LED display offers excellent readability, even from a distance and almost every angle. Both displays are...

Free composition of the required functions 1 digital input, 1 SO output standard Relay output Measurement inputs I/O extension 1 2 relays, 4x ±20 mA, 2 digit Possible application of the I/Os Relay outputs • Alarming via lamp or horn • Load shedding • Remote controllable via bus interface Digital outputs 1) • Alarm output of the logic module • State reporting • Pulse output to external counters (acc. EN62053-31) • Remote controllable via bus interface Analog outputs • Connection to PLC or another measurement system (e.g. CAM). • All outputs are bipolar (±20 mA) and galvanically...

Inputs Nominal current: Maximum: Consumption: Overload capability: Measurement uncertainty adjustable 1...5 A 7.5 A (sinusoidal) < I2 x 0.01 Q per phase 10 A continuous 100 A, 10 x 1 s, interval 100 s Current measurement via Rogowski coils Measurement range: 0.. .3000A, auto-ranging See operating instructions of Rogowski coil ACF 3000 for further information Nominal voltage: Maximum: Consumption: Impedance: Overload capability: Systems: Nominal frequency: Measurement TRMS: 57.7.400 VLN, 100.693 VLL 480 VLN, 832 VLL (sinusoidal) < U2 / 3 MQ per phase 3 MQ per phase 480 VLN, 832 VLL...

Disposable measured quantities Basic measured quantities These measured quantities are determined using the configured measurement time (2...1024 cycles, in steps of 2 cycles). The display refresh ment takes place with the refresh rate set. Measured quantity 1) Maximum deviation from the mean-value of the 3 phase voltages 2) Maximum deviation from the mean-value of the 3 phase currents 3) Possible meters of the digital pulse inputs - any measurand and unit 4) Available via communication interface only, no indication on display 00© i 'heavy current engineering

Operating temperature: Storage temperature: Temperature influence: Long term drift: -10 ... 15 ... 30 ... + 55°C -25 up to + 70 °C 0.5 x basic uncertainty per 10 K 0.5 x basic uncertainty per year Others: Usage group II (EN 60 688) Relative humidity: < 95% no condensation Device to be used indoor only! Mechanical attributes Orientation: Housing material: Weight: Flammability class: Any Polycarbonat (Makrolon) 500 g V-0 acc. UL94, self-extinguishing, non-dripping, free of halogen Aplus without display for top-hat rail mounting Aplus with display for panel mounting Safety The current...