What Is SEG HighPROTEC Line Relay?

The SEG HighPROTEC line offers an outstanding solution for reliable medium voltage protection of distribution, generator, substation and motor. The innovative PC tool minimizes commissioning and training costs. The high degree of proven reliability guaranties high availability of your electrical grid and equipment. Each model type has the flexibility to handle the many variations that can be encountered in a specific application.

Generator protection Relay

The generator differential protection relay MCDGV4 provides precise protection for medium- and high-power generators. It is designed to be highly adaptable to various grid code requirements – including the newest “renewables” requirements. The relay also offers undervoltage directional reactive power protection with reconnection function and an adjustable Fault Ride Through (FRT) capability with AR detection. The MCDGV4 package includes phase, earth current, voltage, frequency and power protection, as well as many generator-specific protection functions. The protection zone can also include step-up transformers (unit protection/ block protection). Safe and time-optimized maintenance and commissioning is enabled by the intuitive operating concept, with plausibility checks and extensive commissioning functions such as the built-in fault simulator. The parameter setting and evaluation software Smart view SE can be used consistently across the entire family of devices.

Transformer Protection

The various protective functions of the MRDT4 are specifically tailored to the protection of two winding transformers. The device offers in addition to the differential protection various communication and backup protection functions. Furthermore the MRDT4 can be used for generator differential protection. The intuitive operating concept with plausibility checks and extensive commissioning functions such as the built-in fault simulator allows a safe and time-optimized maintenance and commissioning. The parameter setting and evaluation software Smart view can be used consistently across the entire family of devices. ANSI : 50, 51, 50N, 51N, 46, 49T, 60FL, 86, 50BF, 74TC , 60L, 64RE F, 87G, 87T

Feeder,Grid & Generator Protection

The MCA4 is a precise and reliable protection, control and monitoring relay for feeder, grid and generator applications. The latest generation series from Woodward, the MCA4 incorporates all the ANSI and IEC concepts to comply with ever changing grid interconnection requirements. Flexibility in hardware, software, application, user interface and communications makes the MCA4 adaptable to requirements today and in the future. The hardware is designed for all nominal values in combination with protection and control functionality. The parameterizing and analyzing software Smart view can be used consistently across the entire family of devices. ANSI: 50, 51, 67, 51C, 51V, 50N, 51N, 67N, 46, 49, 27, 59, 59N, 81U/O, 60FL, 79, 86, 50BF, 74TC , 81R, 78, 47, 60FL, 60L, 32F, 25, 37F, 32Q, 37Q, 37QR, 32S, 37S, 37R, 55, 51C, LVRT , Q->V, UFLS

Directional (Incoming and Outgoing) Feeder Protection

The directional feeder protection relay MRA4 is a high precision and reliable protection and control relay. The intuitive setting concept with plausibility test enables reliable and time optimized configuration of the extensive protection function to a variety of applications such as incoming or outgoing feeder protection, network protection and generator protection. The implemented switchgear management guaranties an efficient and safe control and supervision. The intuitive operating concept with plausibility checks and extensive commissioning functions such as the built-in fault simulator allows a safe and time-optimized maintenance and commissioning. The parameter setting and evaluation software Smart view can be used consistently across the entire family of devices. ANSI: ANSI: 50, 51, 67, 51C, 51V, 50N, 51N, 67N, 46, 49, 27, 59, 59N, 81U/O, 60FL, 79, 86, 50BF, 74TC , 81R, 78, 47, 60FL, 60L, 32F, 25, 37F, 32Q, 37Q, 37QR, 32S, 37S, 37R, 55, 51C, LVRT , Q->V, UFLS

Voltage and Frequency Protection

The MRU4 is a protection relay which uses the latest Dual-Core-Processor Technology to provide precise and reliable protective functions and is very easy to operate. The MRU4 is designed to protect electrical equipment from dangerous voltage fluctuations. For example protection against under voltages caused by mains shortcircuits, or overvoltages due to load shedding or failure of a generator voltage controller. Its compact design makes the MRU4 ideal for installation within the LV terminal compartments of compact SF6-insulated MV systems. The intuitive operating concept with plausibility checks and extensive commissioning functions such as the built-in fault simulator allows a safe and time-optimized maintenance and commissioning. The parameter setting and evaluation software Smart view can be used consistently across the entire family of devices. ANSI: 27, 59, 59N, 81U/O, 60FL, 47, 86, 74TC , 81R, 78, ROCOF, 25

Feeder Protection

The MRI4 is a protection relay which uses the latest Dual-Core-Processor Technology to provide precise and reliable protective functions and is very easy to operate. The MRI4 provides a number of three phase protection elements to safeguard against overcurrent, short-circuit and earth fault, all with inverse time (INV) and definite time (DEFT) tripping characteristics. The MRI4 is also ideal for the protection of isolated, resonant, resistive and solidly earthed neutral systems. It is designed to be used in both radial networks and single fed open ring main systems. It can also serve as backup protection for differential protection systems on generators, transformers, bus bars and electrical lines. For overhead line protection the MRI4 is also available with an optional auto-reclosing function. The intuitive operating concept with plausibility checks and extensive commissioning functions such as the built-in fault simulator allows a safe and time-optimized maintenance and commissioning. The parameter setting and evaluation software Smart view can be used consistently across the entire family of devices. ANSI: 50, 51, 50N, 51N, 46, 49, 60L, 79, 86, 50BF, 74TC