Safety and Quality in Energy Grids
20Pages

Safety and Quality in Energy Grids ibaPQU-S Modular Power Quality Monitoring System ibaNet750-BM-D/ibaW-750 Power measurement with WAGO power terminals ibaPDA-Interface-IEC61850-Client /-9-2 Integration of IEC 61850 compatible protection devices Measurement Systems for Industry and Energy www.iba-ag.com

Monitor and optimize power quality 3 ibaPQU-S Modular Power Quality Monitoring System 7 ibaNet750-BM-D/ibaW-750 Power measurement with WAGO I/O modules 12 ibaPDA-Interface-IEC61850-Client /-9-2 Integration of IEC61850-compliant protection devices 14 Success Stories Accurate fault analysis using the high-speed fault recorder 16 Undisturbed operation due to voltage monitoring 18

Area of application Power Quality Measuring and monitoring the electric power quality (EPQ) is a crucial tool for energy producers, grid operators and consumers alike to document supply reliability and voltage quality on the one hand and to prove compliance with emission limits on the other hand. But also to analyze and thus avoid downtimes and failures. Your benefits at a glance > Characteristics according to the standard IEC 61000-4-30 class A > Reducing energy costs > Assuring supply > Documenting voltage quality > Observing emission limits > Analyzing faults > Meeting quality...

With the modular ibaPQU-S system, it is possible to record data from the plant together with the calculated quality characteristics and measured raw values centrally in ibaPDA. This enables users to thoroughly evaluate all data, recognize contexts and thereby determine the root-causes of faults or quality variations. Moreover, the data provide important information about the dimensioning of the plant and its optimal operation. Consumers are obliged to quality Electricity consumers influence the grid quality for example by power electronic devices, e. g. for frequency-regulated drives. Grid...

„We monitor power q uality in accordance with binding standards.“ Dries Boone, Power Quality Expert Your benefits at a glance: Efficiently analyze faults Document power quality in ccordance a with applicable standards Avoid fines

The iba system provides a wide range of functions to monitor and optimize electrical power facilities: continuous monitoring of the power quality in energy grids, use as digital fault recorder (transient fault recorder) and integration of the protocol standard IEC 61850. The possible applications complement each other and can be operated in parallel. Proving electric power quality in line with standards Electrical power quality (EPQ) is defined by characteristics such as frequency, height, curve profiles and symmetry of the supply voltage. It is adversely affected to an ever greater extent...

The Power Quality Unit ibaPQU-S can be used for high-accuracy monitoring of the power quality in energy grids. For this purpose, characteristics of electric power quality are calculated according to the standard and are acquired and recorded by ibaPDA. At a glance > Modular power quality monitoring system with highest accuracy > Measurement in sync with the grid > Internal calculation of grid quality parameters according to IEC 61000-4-30, class A > Power and energy values > Data acquisition and calculation of statistical and long-term power quality parameters using ibaPDA (FO connection...

ibaPQU-S High voltage 110 kV Example of monitoring of the power quality using ibaPQU-S in the iba system Analyzing fault causes The process data acquisition system ibaPDA connects ibaPQU-S into the overall plant and process monitoring. Thanks to ibaPDA‘s broad connectivity, it is possible to acquire the measured values from various sources and sample them synchronously. Using special mechanisms, the grid synchronous measured energy values are harmonized with the time synchronous process values. So the electric power quality parameters can be correlated with the plant’s operating mode. The...

1 time interval of 10 periods in 50 Hz grids

Examples for measurement and display with ibaPQU-S The following examples show measurements with ibaPQU-S. The display of the characteristic values in ibaPDA allows to draw conclusions about certain events or a possible failure and its cause. Phasor and Spectrum View In the phasor view, voltages and currents are displayed according to magnitude and phase position. So the user recognizes the current load situation. The spectrum diagram shows how much the consumers are burdened with harmonics. Both diagrams allow conclusions on the consumer structure. Power Quality Monitoring with ibaPQU-S...

Example: commutation notches Commutation notches are caused, for example, by power converters. For the peaks being very steep but in fact also very brief, the effective value is only marginally changed. But nonetheless, other consumers can be interfered in their function by this effect. Thanks to the high-resolution (raw) values, this event is also recognized as an error and recorded by ibaPQU-S. Example: voltage drop The signal trend shows a voltage dip and the reaction of the effective values of the conductor currents to this event. Further analysis allows to derive statements on the...

I/O modules of the 750 series from WAGO offer a cost-effective alternative for power measurement. Connection to the iba system is optionally via standard Ethernet or fiber optics. At a glance > Ideal applications: power flow analysis, internal energy management, calculation of energy costs and consumption > Integration into the iba system: - with ibaW-750 via a standard Ethernet connection - with ibaNet750-BM-D via optical fiber with ibaFOB card > Measurement in the low voltage range directly at consumers > Cost-effective alternative to an ibaPQU-S system if no standard-compliant...

ibaNet750-BM-D Measurement of power characteristics in the low voltage range with WAGO power terminals A new function for device search ensures automatic detection if ibaW-750 is in the same LAN as the ibaPDA computer. Isochronous measurement ibaPDA synchronizes all ibaW-750 systems connected to it, enabling isochronous measurement of several distributed I/O systems via Ethernet. Measured data acquisition via Ethernet The sampling rate can be freely set up to 1 kHz. The maximum amount of data that can be transferred depends on the selected sampling rate. The following applies: The higher...