Conventional Protection and Control System
A family of Protection and Control devices with a traditional design. Produced and improved for over
30 years, with proven functional and reliability properties.
Analog and binary signals from secondary circuits of substation are directly connected to the relay housing, mounted in control cabinets or on boards using copper cables.
The devices are equipped with communication ports compliant with IEC61850, IEC870-5-103
and CANBUS protocols.
Need more information about conventional protection devices?
Protection Relays UTX3
UTX3 Series is a family of full-scheme distance protection devices.
The basis for the reliable operation of the UTX3 series protection relays is the precise and fast measurement of voltages and currents and the implementation of the IEC61850, IEC870-5-103, CANBUS PPM2 communication protocols.
Busbar Protection System with Local Breaker Backup Automation MSZ+LRW
UTX3vMSZ+LRW is a busbar protection system with local breaker backup automation for various types of switchboards.
Working with C&C bay protection or dedicated µUTX3vL/SSZ acquisition devices via a dedicated AAbus interface.
Universal, programmable field settings allow for virtually any configuration of protection for up to 4 busbars in configurations supporting up to 16 bays.
The devices are equipped with network transmission interfaces – TCP/IP and/or fiber optic operating in the company protocol and the IEC 61850 standard.
Transformer Voltage Regulator RNT
The transformer voltage regulator is intended for use in all regulation systems with an on-load tap changer on any high and medium voltage lines operating with a grounded, compensated or insulated star point.
The device ensures quick and reliable adjustment. Extensive functions of compensation for voltage drops, settings, calendar, event and disturbance recording and voltage quality recording ensure the implementation of even the most sophisticated applications.
Automatic Reserve Transfer Switch SZR
It is intended for reserving power supplies in HV and MV switchboards in any configurations – including non-standard ones. It ensures: fast, selective and reliable switching in the event of any type of disturbance: (voltage loss or circuit breaker tripping).
In the HV switchgear it can work as an ATS of a line string, controlling 3 circuit breakers in the lines and the crossbar. In addition to the standard types of reserves, the device can implement any type of reserve, controlling up to 8 voltage groups and up to 15 switches.
Concentrator XSERWER
XSERWER is an industrial computer designed to collect information from protection devices, regulators, recorders and other station devices. It acts as a hub and protocol converter. The XSERWER supports DNP3, IEC 60870-5-103, IEC61850 protocols and the company’s CC-Bus communication protocol.
Digital Fault Recorder System
ARCHI 9000
ARCHI 9000/900 is a digital fault recorder system. The device digitally records analog and binary measurement signals occurring in power facilities for subsequent analysis using an appropriate program. It is a completely scalable device with the possibility of expansion up to 128 analog signals, 32 frequency measurement signals and up to 720 binary inputs. The recording possibilities are extended with modules enabling precise signaling of normal and emergency operating states.
From the beginning of 2025, new versions of ARCHI LGU entered production, equipped with a new, 10 times faster processor, twice as much RAM 8MB, and increased sampling frequency to 15 kHz.
Central Signaling Unit CSS 4E
CSS 4E is a freely programmable, scalable device that signals the occurrence of a specific state on binary inputs using a panel of light indicators and a set of relay outputs. Received signals can be grouped and individually assigned to optical indicators, relay outputs or reset inputs.
As standard, CSS 4E also has the ability to record, duplicate and translate signals, make them logically dependent on each other, and allows for the implementation of the functions of a field controller with three-valued logic.
Hybrid Relay HR8A-400V
Ultra-fast, high-power hybrid relay HR8A-400V is designed for use in all types of DC and AC circuits.
They combine the best features of traditional electromechanical relays – minimal contact resistance, and modern semiconductor elements – high speed of operation.
Short switch-on time (below 0.3 ms) and the ability to disconnect inductive circuits with L/R=40ms and current up to 8A/220V DC predispose them to use especially in circuits controlling power system switches.