HANNOVER MESSE 2019,
01 - 05 April
MEgA - Merici Energeticke Aparaty
The short-circuit and ground fault indicator MEg61.4+ (hereinafter MEg61.4+ indicator only) stems from well-proven functions of the previous ground fault indicators of MEg61.4 series which were supplemented with new recording functions. Thus one unit incorporates the ground fault indicator for MV levels where, except for identification of faults and registration of fault states, continuous monitoring and long-term recording of
monitored quantities is performed as well.
The MEg61.4+ indicator identifies the segment of overhead line in which a ground fault or a short-circuit (overcurrent) occurred. The MEg61.4+ indicator can be used for outdoor installation on MV overhead line poles or for installation in internal environment with cable MV lines. Bolted, arc and low impedance ground faults and all types of shortcircuits are indicated. It is primarily designed for use in compensated MV distribution networks; however, it can be used in MV distribution networks with grounded neutral.
The MEg61.4+ indicator measures and records the data related to voltages, currents and powers in the non-destructive electronic memory in preselected intervals.
Ground fault records consist of the curves containing 10 ms values and the curves containing individual samples of basic quantities.
The MEg46DIN monitor is designed for measuring in industrial energy operations on the
LV level. It is characterised by the flexibility of ...
The communication unit MEg202.5 in its basic configuration provides remote transmission
of states or changes of binary inputs and commands by GSM ...
The MEg44 class S monitor measures three voltages and three currents of the DTS transformer
at LV level. It provides the functions of recording, ...
The multiple input PQ monitor MEg37 measures four voltages and the total of 36 currents at
the LV level. It provides the functions of measuring ...
The basic version of the communication units MEg201.5 with RTU functions provides remote transmission of states of binary inputs, commands and measured data from ...
The fuse state indicator MEg72 is used for local and remote indication of the fuselink with knife blade contacts in LV grid. It
enables you to identify the states ...
The measuring rail MEgML is intended for sensing phase voltages and phase currents of LV fuse and disconnector rails for measuring instruments with current and voltage ...
Output feeder monitor MEg71 is designed for measuring of voltage, current, power and energy on output feeder in LV switchgear equipped with fuse rails or fuse disconnectors.
PQ monitor MEg39 measures four voltage and four current values at LV, MV, HV levels. It provides the functions of recording, electricity meter and analysis of voltage ...
The PQ monitor MEg38/C is intended for measuring and recording of four voltages and four currents, active and reactive powers and energies in three-phase LV, MV ...
The MEg70 compact monitor is characterized by mechanically
associated measurement of voltage, current, measuring and evaluating
circuits including a serial interface ...
The communication unit GPRS MEg202.2 in its basic version provides remote transmission of states or state changes of binary inputs and commands through the GPRS ...
The instrument split core current transformer PTD is installed in low voltage networks on to live and insulated wires. In its operating state, the transformer is ...
The indicator of ground faults and short-circuit currents MEg61.4 is designed for indication of an overhead MV line section with a ground fault or a short-circuit, ...