Equipment for control and management of electrical networks
On-load tap-changers voltage regulators, REG-D(A)
OLTC voltage regulators serve to maintain the required voltage at the terminals of the secondary winding of a transformer with an on-load tap-changer in automatic mode. In addition, the functionality of the REGSys ™ automatic voltage regulator range can be significantly extended with additional features. Key features and benefits: Large graphic LCD display, which displays all the necessary information: the position of the on-load tap-changer, voltage and other indicators. Measured values: U, I, P, Q, S, cosφ, sinφ, f. Multi-channel parameter recording function in the log. Accounting and statistics functions: total number of switchings, number of switchings by positions. Additional functions for monitoring the hottest point and lifetime. Freely programmable binary inputs and outputs. Direct Pt100 input. Voltage control of three-winding, phase-shifting transformers and transformer groups. Support for communication protocols IEC 60870-5-101 / 103/104; IEC 61850; LON; DNP 3.0; Profi bus DP; MODBUS RTU; SPABUS. Monitoring of transformers in accordance with IEC 60354/60076. Possibility of programming the device for specific customer requirements. All SCADA system capabilities (including IEC 61580) .
Regulator for Petersen coils, REG-DP(A)
Application: In medium- and high voltage networks, the free programmable regulator REG-DP is used for the automatic control of Petersen coils (P-coils), which are continuously adjustable on load. Furthermore, the controller can solve a lot of control-, measuring- and recording tasks all around the Petersen coil. Control methods: As a standard feature, the regulator offers different methods for the automatic control of a Petersen coil. Depending on the requirements, the REG-DP can control either to a percentage or absolute detuning-current or a given zero-sequence-voltage. It is remarkable, that during a ground-fault, the Petersen coil can be corrected by the detuning and adjusted to the resonance point. Furthermore, there are different methods available for the control of several Petersen coils in the same network. Key features and benefits: System solutions for networks with isolated or deaf-grounded neutrals. Fine tuning of Petersen coils. Reliable determination of earth faults. Definition of repeating and short circuits. The function of recording closures. Remote connection with devices. Compliance with the following standards and recommendations: IEC1010 / EN61010 (VDE 0411), CAN / CSA - C 22.2 No. 1010.1- 92, VDE 0110, IEC 255-4, EN 55011: 1991, EN 50082-2: 1995, IEC 688-1, IEC 529, EN 50178 / VDE 0160 / 11.94, VDE0106 part 100, DIN40050.
Power Quality / Disturbance Recorders, PQSys
The fault recorders and power quality analyzers PQI-DAsmart, PQI-DE, PQI-DA and PQI-D are the key devices for all measurement tasks in low-, medium- and high-voltage grid. Beside the possibility of standard evaluations, the analyzers also have a high speed fault recorder capability with up to 40.96 kHz sampling rate and a half cycle r.m.s. registration, which allows detailed analysis of grid disturbances. In particular, the power quality analysers are suitable for monitoring, registering, evaluating and recording special reference quantities or quality agreements between the supplier of energy and the end customer. Mobile Power Quality-Analyzers such as PQ-Box 50, PQ-Box 100, PQ-Box 150, PQ-Box 200 and PQ-Box 300 were developed for the operation in harsh environment (protection degree IP65). Both are applicable for measurements in public (CAT IV) and industrial networks for voltages up to 1000V. Analyzers are delivered with WinPQ Mobile, intuitive, user-friendly software package for settings, records extraction and visualization, second to none in its class. Key features and benefits: Measurement of power quality in accordance with EN 50160 and IEC 61000-2-2 / 2-4. Detection of closures (oscilloscope, effective value, event). Convenient software for visualizing measurements using WinPQ / PQ ParaExpress. Ability to integrate with SCADA system (TCP / IP, IEC 61850). The devices comply with the standard IEC 61000- 4-30, class A / CAT IV.
Transformer Monitoring System, TraCoMo™
The TraCoMo™ - monitoring system designed to monitor the status of a transformer during operation. A distinctive feature of the monitoring system TraCoMo™ is its modular design, both in hardware and software. For example, you can start with the installation of the automatic voltage regulator REG-D(A), and in the future add the required functionality. Key features and benefits: Transformer and on-load tap-changer monitoring system. Measuring the temperature of oil and windings. Determining the gas and moisture content of the oil. Intelligent monitoring of bushings. A set of analytical functions (calculating the service life of a transformer, based on its operating modes). The ability to program the device to the specific requirements of the customer.