Digital switchgear ES GEAR

ES GEAR software and hardware system is a set of intelligent devices that provide functions of protection, automation, measurement and control of 6-35 kV switchgears.

Devices within ES GEAR communicate via digital interfaces, the main one being Ethernet 100Base-TX. 

Communication between devices within ES GEAR and other switchgear is carried out in accordance with IEC 61850, which ensures a minimum number of terminals and wires, simplified installation, accelerated testing and commissioning of the switchgear. 

Continuous self-diagnostics of ES GEAR components is an important advantage for operating personnel and provides increased reliability and reduced operating costs.

ES GEAR includes:

ECIT – single-phase combined instrument transformers with digital interfaces for connection to the process bus and digital transmission of measurements;

ENBC – protection and automation device, bay controller;

ESM-SV – electricity meter and power quality parameters control device;

ENCS-2 – time sync module for synchronizing ES GEAR devices;

ENBC Touch – information display panel, which is connected to ENBC and ESM-SV via RS-485;

AFS – arc fault optical sensor;

ITS2 – non-contact temperature sensor.

Measurements

ENBC receives real-time current and voltage measurements from ECIT digital instrument transformers according to IEC 61850-9-2 in the form of synchronized phasor measurement streams (SP). The SP stream is published for protection and automation and allows to reduce the amount of data to be transmitted and increase the protection speed. Measured streams of instantaneous current and voltage values (SV - Sampled Values) are transmitted to ESM-SV for measurement of network mode parameters and power metering.

The ES GEARs are interconnected via a station bus using parallel seamless redundancy according to IEC 62436-3 (PRP). ESM-SVs are connected in the same way via PRP or RSTP. Time synchronization of ESM-SV and ENBC is performed via SNTP, PTPv2.

Main features