The UMG 511 power quality analyser is particularly suitable for monitoring power quality according to standards such as the EN 50160. All power quality parameters are collected and analysed e.g. flicker, short term interruptions with fault recorder function, transients, harmonics up to the 63rd and inrush currents etc.
Extensive communication possibilities e.g. RS 485 Modbus, Profibus, Ethernet (TCP/IP), BACnet, http, FTP, SMTP, SNTP, DNS … allow cost effective and rapid integration in existing communication networks.
âĒ RS485 protocols: Profibus DP or Modbus / RTU, Modbus-Gateway and BACnet
âĒ Fast Ethernet 10/100Base-TX protocols: HTTP, NTP, Modbus TCP, Modbus over TCP, DHCP und BACnet
Added value with additional functions
The UMG 511 power quality analyser serves for the purpose of continuous monitoring of the power quality e.g. in accordance with EN 50160. This serves for the purpose of monitoring the supply power quality from the energy supply side. The UMG 511 can also be used in applications for failure analysis on the consumer side and is also used as a preventative measure for network perturbations.
A rapid, cost-optimised and reliable communication system can be developed through the Ethernet connection. The instrumentâs own homepage offers you the opportunity to call up the data or configure the instrument directly using the embedded web server.
The large number of digital and analogue inputs and outputs offer a variety of communication systems possibilities and allows connection to PLC systems and independent control tasks. The GridVis analysis software represents a fundamental part of the standard delivery. The GridVis can be used to practically trigger analysis in accordance with EN 50160 with the click of a button. The presentation of online data and the analysis of historical data is also a benefit for finding the root cause of network problems.
Digital inputs and outputs
The 8 digital inputs of the instrument can either be used for tariff switchover, for synchronisation, to start the recording, or as other meter inputs for pulses. There are 8 programmable comparators available which can be allocated up to 4 measurement parameters as a limit value comparator. The digital outputs can also be programmed as a signal output for transients, events or as a pulse output.
Data collection and recording
The UMG 511 has an internal 256 MB flash memory for continuous recording of all measured data. The measurement value memory is freely configurable with reference to the measurement values which are to be recorded and the recording intervals. The recording interval is also the average time of the respective measurement value. In addition, the highest and lowest actual values (200ms average time) can also be recorded within the interval if you want to save the data as a graph y(t). Obviously it is also possible to store the measurement data in form of histogramms (distribution curve).
The recording of transients and events is initiated by triggers. Transients are recorded from a period larger than 50ÃŽs. Events such as excess currents or under/overvoltage can be safely recorded from half a period. Events are recorded with up to 16000 (programmable) half cycles as effective value recorder.