HANNOVER MESSE 2019,
01 - 05 April
In order to take advantage of the different earthfault detection methods in various fault situations, the freely programmable earthfault-detection and short-circuit-indicator EOR-3D makes it possible to select and combine the following methods: - Transient-method using qu2 und qui algorithms - for single faults - intermittent and restriking faults - fault detection in loops with high circulating current- Direction of reactive power of the zero-sequence system, resp.sin(?) method- Direction of active power of the zero-sequence system, resp. cos(?) method, suitable instrument transformers assumed- Harmonics method - Pulse-method: Standard and using HPCI- Indication of short-circuits and double earthfaults- Directional short-circuit indicator with suppression of signals, caused by atmospheric interference- Short-circuit recognition with adaptive trigger levels- Recognition of cross country earth-faults- Recognition of series faults by monitoring the current unbalance- Recognition of ferroresonanceThe following features are available, either as standard or optional:- Logbook of Events- Fault recorder with a sampling rate of ? 2 kHz- Records with memory depth up to the GB-range, by the use of an internal mass storage based on a micro-SD card- Ethernet interface used for parameterization and to transfer the data from the logbook and the fault recorder via PC or intranet.- USB 2.0 FS interface for an USB-stick used to transfer the data from the logbook and the fault recorder and for firmware-updates- Depending on the configuration, EOR-3D is adapted for the use of traditional instrument transformers or current- and voltage-sensors- A local integration of EOR-3Ds can be made via a proprietary LAN, based on CAN- The Ethernet-interface with 10/100 MHz allows a LAN connection, so that a quick transfer of data, parameterization and even a simplified GOOSE transmission is possible
Solving all measurement tasks in electrical grids today can be a challenging task. The new Power Quality-Interface and Disturbance Recorder PQI-DA ...
The low voltage regulation system LVRSys represents
a cost-effective alternative for grid expansion.
The economic use is recommended in all low voltage
grids where ...
Characteristics of the REG-DA voltage regulator- large backlit LCD (128 x 128) with all important information (tap-changer position,
- Measuring ...
The freely-programmable REG-DP regulator can be used to regulate continuously-adjustable Petersen coils (P coils) that are operating under load in medium ...
Make provisions with a "busbar inspection" ... with the mobile damping analyzer
- A system test in your transformer station for three months
- Analysis and report
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To make use of the advantages of the various detection methods in different earthfault-situations, the freely programmable earthfault-detection-relay EOR-D makes ...
In the future, stricter requirements will be put in place for the economic management of distribution networks. The required optimization processes in the distribution ...
- Paragramer function for automation and visualization of the parallel operation of up to ten transformers. Therefore the paragramer uses the state indication of ...
- State-of-the-art disturbance recorder and power quality analyzer in one device
- Simultaneous measurement of Phase-Phase and Phase-Earth voltages
- Separate thresholds ...
"Change is the only constant - This fits more than ever for today's electrical power grids.
How does the GDASys device family help?
- Measuring of frequencies ...
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