Although looking back on important milestones is always worthwhile, we believe the greatest adventures still lie ahead.
In the future, the mission of Protecta is to continue to focus on innovative and quality-oriented protection, automation and control devices for the power industry, with development focusing on customers´ needs.
At the end of the 1980s microprocessors became available, which triggered the development of numerical protections.
In 1988 the first digital automatic reclosing devices were made by VEIKI for 120 kV transmission lines.
In the 1970s and the first half of the 1980s an entire family of protective devices based on electronic IC was developed, covering the entirety of the protection requirements of medium and high voltage networks and power plants. Tens of thousands of these devices have been installed in Hungary, most of them operating without any problem to this day.
The quality of R&D is indicated by the fact that 18 patents have been registered (some of them in several countries) in the field of protection and automation.
Integrated circuits were adopted by protection technology soon after their appearance.
VEIKI was one of the first companies in Europe to start the mass production of such devices in 1972–73 for motor protection purposes.
Large numbers of these integrated-circuit electronic motor protection devices were installed for auxiliary motors in power plants, replacing the outdated, maintenance- demanding electromechanical bimetal protection relays.
In 1964 VEIKI (Electric Power Research Institute) was established as the legal successor of VILLENKI; the development of protective devices were continued in the new company.
The invention of the industrial style of solid-state components opened the way for research and development in the field of electronic protection.
The first two transistor-based protection devices were the negative sequence overcurrent protection and the line differential protection device for using the postal telephone circuit. The latter provided instantaneous protection for several 120 kV transmission lines from 1961 on.
The main goal for the earth-fault protection device during the development process was to provide reliable and selective protection in meshed middle voltage networks with isolated or impedance grounded neutrals. It was also important that the relay could be connected to the Holmgreen circuit of the primary current transformers.
The state-owned research institute VILLENKI (Electric Power Research Institute) was founded in 1953. It continued the development of protection and automation devices using electromechanical relays. Time delayed overcurrent protection, distance protection and automatic reclosing devices were made for the grid and various generator protection devices were produced for power plants.
In 1949, VKB (Research Committee for Electrification), the predecessor of VILLENKI, was already working on protection-related development. Since only electromechanical relays existed at the time, these were utilized to construct protection devices.
The first such device was a line protection device using pilot wire connection; it relied on the principle of comparing the direction of current flow, and it was installed on the Kőbánya–Népliget 120 kV transmission line.
The IED-EP+ S/S16 series is part of the EuroProt+ Smart Line. Members of the Smart Line also offer a wide range of functions but they do so in a small, compact enclosure so that they can be installed in locations with limited space available for the protection equipment. The IED-EP+ S16 series contain a special selection of the EuroProt+ modules, bearing in mind the cost effective realization. The low-cost IED-EP+ S16 devices are realized with predefined hardware arrangement and fixed standard configurations.
The primary target of the IED-EP+S16 relays is the protection of incoming and outgoing feeders in distribution substations, but they are also used as back-up protection for feeders, motors, transformers and generators in utility and industry applications, where an independent and redundant protection system is required. Depending on the selected standard configuration, the IED can be utilized as the protection of medium voltage feeders in isolated neutral, resistance earthed, compensated or solidly earthed networks. Once the standard configuration IED has been given the application-specific settings, it can be directly put into service. Application area also covers protection functions for a large variety of applications, e.g. frequency and voltage based protections, motor protection and thermal overload protection function.
In 2014, Protecta Ltd. purchases the majority of shares of Prolan Power Co., a company which continues Prolan Co.’s work of installing and developing process control and automation devices on the Hungarian electric-power transmission network,
As a result, Protecta can supply the full scale solution of substation secondary technology through the combination of competences and products.
2013 is the year of debut of the IED-EP+ S/S24 series, which contain a special selection of EuroProt+ modules chosen with cost effectiveness in mind.
Protecta S24 smart line protection and control relays have been designed to be the main or back-up protection in utility and industrial power system. The S24 devices provide extensive range of protection and control functions in a space-saving enclosure.
The EuroProt+ series of IEDs produced by PROTECTA Ltd. draws on more than 50 years’ experience in the field of efficient protection relaying. The new platform is a straightforward evolution of Protecta’s previous product families of digital protection technology.
Rising to the challenge of the revolution of the IP technology, the EuroProt+ extends the system to a platform using IP based HMI functions and to IEDs with native IEC61850 features.
- Native IEC 61850 IED with Edition 2 compatibility
- Scalable hardware to adapt to different applications
- 84 HP or 42HP wide rack size (height: 3U)
- The pre-defined factory configuration can be customized to the user’s specification with the powerful EuroCAP tool
- Flexible protection and control functionality to meet special customer requirements
- Advanced HMI functionality via color touchscreen and embedded WEB server, extended measuring, control and monitoring functions
- User configurable LCD user screens, which can display SLDs (Single Line Diagrams) with switchgear position indication and control as well as measuring values and several types of controllable objects.
- Various protection setting groups available
- Enhanced breaker monitoring and control
- High capacity disturbance recorder (DRE) and event logging (data is stored in non-volatile memory):
- DRE for up to 32 analogue and 64 digital signal channels.
- Event recorder can store more than 10,000 events.
- Several mounting methods: Rack; Flush mounting; Semi-flush mounting; Wall mounting; Wall-mounting with terminals; Flush mounting with IP54 rated cover.
- Wide range of communication protocols:
- Ethernet-based communication: IEC61850; IEC60870-5-104; DNP3.0 TCP; Modbus TCP
- Serial communication: DNP3.0; IEC60870-5-101/103; MODBUS, SPA
- The EuroProt+ family can handle several communication protocols simultaneously.
- Built-in self-monitoring to detect internal hardware or software errors
- Different time sources available: NTP server; Minute pulse; Legacy protocol master; IRIG-B000 or IRIG-B12X
The members of the SigmaProt device family are simplified versions of the EuroProt devices, which are well-known in the Hungarian electric power industry. Their main advantage is their significantly smaller size and compact structure, while being compatible in terms of hardware and software to the ‘traditional’ EuroProt devices.
Members of the EuroProt device family were designed to perform all required protection, automation and control functions of the electric power system in one IED.
The devices of this product line can protect the power system elements of the medium and high voltage levels. They can be applied in power stations, substations, and at industrial facilities as well.
The ΩProt devices belong to the smallest, numerical type device family produced by PROTECTA Ltd.
Their compact design results in a small place requirement.
In 1990, the development and manufacturing of protection and automation devices were moved from VEIKI to the newly established PROTECTA Ltd. which continued the development and production of digital protection and automation relays. Introduction of the first numerical (microprocessor-based) protective relays.