SHERLOCDIGITAL FAULT RECORDINGFault Recorder | Disturbance Recorder | Power Quality Meter | Data Logger The measuring devices of the SHERLOG range combine the monitoring functions of a high-class digital fault- and disturbance recorder with the features of a class A power quality analyzer and continuous data logger in a single system. They can be used to comprehensively monitor power grids and equipment such as generators, lines, bus bars and associated protection devices and switchgears. Outstanding precision Thanks to the very high sampling rate of 200 kHz and a maximum measurement error of <0.05%, SHERLOG devices meet the highest requirements. Protected against supply failures Thanks to the device's internal and maintenance-free supercap technology, SHERLOG devices bridge supply voltage interruptions of up to 30 seconds. This ensures that grid faults are reliably recorded under all circumstances and stored in the internal data memory for later analysis. SHERLOG systems are suitable for all voltage levels. They can be used as centralized or decentralized monitoring systems and unite the following functions in one device: ■ High speed fault recorder for transient events ■ Dynamic RMS fault recorder ■ Continuous data recorder ■ Distance to fault locator ■ Sequence of events recorder ■ Power quality analyzer to IEC61000-4-30 class A ■ Phasor measurement unit ■ Integration in substation control and protection systems to IEC 61850 SHERLOG CRX is based on a modular, scalable device concept and can be equipped according to individual requirements. A single SHERLOG CRX can be equipped with up to 32 analog inputs for AC and DC measurements and up to 128 binary inputs. SHERLOG CRX devices can be linked together to create systems with any number of measurement inputs. Plug and Play technology Adaptations and extensions as well as the replacement of any module on already installed systems can be easily carried out on site at any time. Even replacements of the analogue measuring modules is possible without time-consuming and cost-intensive adjustment, as the calibration data is stored on each individual module. Redundant Power Supply SHERLOG CRX can optionally be equipped with a second power supply unit for redundant operation. The input voltage range of each power supply unit can be selected individually. This enables, for example, a simultaneous supply via AC and DC voltages.

Standard device with fixed configuration The standard device SHERLOG CRX 2032 is the ideal complement to our globally proven modular measuring system SHERLOG CRX. With the same performance and identical measuring and analysis functions, these standard unit offers an even more compact design, which is ideal for use in confined spaces. In addition, this standardization eliminates the need for project-specific production, which leads to significantly shorter delivery times as well as cost advantages. The associated Expert software enables fully automated and database-supported analysis of grid faults....