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- Low cost and high flexibility
- Over and Under Frequency
- Covers 63 to 690 VAC
- Programmable scales
- Programmable relay functions (NE/ND)
- Microprocessor based
- Optional Configuration by PC
The SELCO G-Line relays are mainly intended for use in land-based applications. The SELCO G-Line relays provides an efficient solution for applications where flexibility and cost of purchase are the main issues. Despite a low purchase price, SELCO G-Line relays provide high quality, proper measuring techniques and a vast number of programmable options. |
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The REM 543/545 terminals are ideal for protection and control of your electric motors and power generators, offering ease of use and reliable, proven performance. With their wide range of communications and connectivity support, they can easily be integrated into your process or plant automation and supervision system.
The REM 543/545 terminals provide complete protection for rotating machines. The terminals are intended for large asynchronous and synchronous motors and for small and medium-sized power generators. The motor and generator terminals have been successfully employed in challenging environments, such as mines, mills, marineand off-shore, and in demanding applications including base-load and peak-power generating sets, pumps, fans and crushers.
The motor and generator terminals REM543/545 have been certificated for marine and off-shore use by Det Norske Veritas(DNV), and have obtained type approval by Registro Italiano Navale (RINA), Lloyd's Register of Shipping and Germanischer Lloyd, as well as UL recognition by Underwrites Laboratories Inc. |
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| In order to make technology available for the first time that complies with IEEE turbine protection standards, SEL has applied its expertise in the production of microprocessor-based relays to create the SEL-300G, a generator relay that includes several unique features designed for unsurpassed protection, monitoring, and control of electrical generators. SEL designed the SEL-300G to meet the needs of a variety of users, including utility and industrial power plants and generator set manufacturers. |
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G60 Generator Protection System
The G60 Generator Management Relay, part of the UR family of protective relays, is a microprocessor-based relay intended for the protection of AC generators. It may be used on any size of generator driven by steam, gas and hydraulic turbine.
Protection functions include stator differential, 3rd harmonic stator ground differential and 3rd harmonic neutral undervoltage for 100% stator ground differential protection, sensitive directional power for low forward power and reverse power protection, loss of excitation, inadvertent energization, overexcitation, current unbalance, out-of-step, and a whole suite of under- and overvoltage, and overcurrent functions. |
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Bus or Transformer High-Impedance Differential Relay
Apply the SEL-587Z Relay for single-zone bus protection; or sensitive restricted earth fault protection on grounded, wye-connected power transformer windings. Use high-impedance differential elements for fast tripping for in-zone faults, while providing security during heavy through faults and CT saturation. Reduce panel design cost and space requirements by using a single relay that includes three-phase protection, resistors, and metal oxide varistors. Use front-panel pushbuttons to save the expense of separately mounted control switches. Serial port communication provides for remote control of circuit breakers or other user-defined functions. |
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SEL-710 Advanced Motor Protection
The SEL-710 Motor Protection Relay features the industry’s most accurate motor protection together with settings, mounting, and communication options designed for easy application.
The SEL-710 calculates the motor speed from the voltage and current, and the electrical model of the motor. Knowing the speed, it accurately calculates the rotor heat, solving high-inertia starting problem. Accurate heat calculation also minimizes the cooling period required between starts for all motors.
The SEL-710 with the AccuTrack™ Thermal Model determines the longest safe starting time (no speed switch needed) and reduces wait time between motor starts up to 33%.
Easily set motor protection with motor nameplate data. The small footprint and flexible mounting options allow easy retrofit without cutting or drilling. The user configurable front panel gives users flexibility for custom messages, alarms, and pushbutton actions.
The SEL-710’s flexible system of slide-in I/O and communication cards delivers up to eight communication protocols, including Ethernet, Modbus, and DeviceNet. Send information to a remote terminal, central control room, engineering access, and other locations using multiple protocols simultaneously.
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Regulators ENR guarantee the respect of the parameters of the process by a precise and effective regulation of the level and/or temperature.
The ENR20 is a relay regulator with 2 contacts. The ENR30 has in more one independent contact.
Assembly on symmetrical rail DIN 35 mm
Dimensions: l=45 mm h=75mm p=105mm
ENR20
- threshold of level: 2
- contacts: 1 reverser
- indication: 2 LED
- capacity breaking max.: 6A
- temporization: 0... 10 S
- output voltage: 12... 14V
- output current: 8mA
ENR30
- threshold of level: 3
- contacts: 2 reversers
- indication: 2 LED
- capacity breaking max.: 6A
- temporization: 1 S approx.
- output voltage: 12... 14V
- output current: 8mA |
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Superior Differential Protection - With Zero Settings.
Use the economical SEL-387L to provide sensitive, fast, secure three-pole current differential protection with zero settings. The differential operating system of hte SEL-387L requires no settings. Configure the transmit and receive address, and the SEL-387L is ready to protect transmission lines and cables of any voltage. Protect two-terminal transmission lines and subtransmission lines with the same ratio CTs on each end. Apply a 64 Kb digital communications channel for complete phase and ground fault protection with no settings. Replace error-prone pilot-wire relays with a sensitive and secure fiber-optic line current differential relay. Use the built-in communications monitoring and alarm system to improve protection quality. |
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The 7SD60 relay is a numerical current differential protection relay, simple to set, operating in conjunction with the remote station via a two pilot-wire link. It is connected to the primary current transformers via an external summation current transformer. The primary field of application of the relay is protection of short overhead lines and cables with two line ends. However, transformers and reactors may be located within the protection zone.
Function overview
• Current differential protection with external summation current transformer 4AM49
• Suitable for use for distances of 12 km max. via two pilot-wires
• Differential protection can be combined with overcurrent release
• Pilot-wire monitoring function
• Bidirectional remote tripping
• Circuit-breaker intertripping at the remote station
• Seal-in of the TRIP command until manual reset (Lockout function)
• Minimal current transformer requirements due to integrated saturation detector
• Restraint against inrush / undelayed trip for high differential fault currents
• Emergency overcurrent protection
Operational measured values
• Local and remote current
• Differential current
• Restraint current |
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The SIPROTEC 4 7SA522 is a distance protection relay for transmission lines. This relay provides full-scheme distance protection and incorporates all functions usually required for the protection of a power line. The relay is designed to provide fast and selective fault clearance on transmission and subtransmission cables and overhead lines with or without series capacitor compensation. The power system star point can be solid or resistance grounded (earthed), resonant-earthed via Peterson coil or isolated. The 7SA522 is suitable for single-pole and three-pole tripping applications with and without tele (pilot) protection schemes.
The 7SA522 incorporates several protective functions usually required for transmission line protection.
• High-speed tripping time
• Suitable for cables and overhead lines with or without series capacitor compensation
• Self-setting power swing detection for frequencies up to 7 Hz
• Digital relay-to-relay communication for two and three terminal topologies
• Adaptive auto-reclosure (ADT)
One of the communication interfaces is system interface for connecting to a control system via IEC 61850 Ethernet protocol. |
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Protect lines with easy-to-use current differential relays. Sensitive differential elements provide sub-cycle operating time. Restraint for external faults uses an easy-to-set vector ratio of remote and local currents. Protect transmission lines using differential and a combination of four stepped-distance zones of phase and ground-distance elements in communications-assisted schemes, with directional overcurrent element backup protection. Patented Capacitance Voltage Transformer (CVT) transient overreach logic enhances security of Zone 1 distance elements. Best Choice Ground Directional Element™ logic optimizes directional element performance and requires no directional settings. Use the optional single-pole tripping capability of the differential elements to improve system stability. Programmable four-shot breaker auto-reclose with synchronism and voltage check logic for optimal system restoration.
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RGU-10 / CBS-4 Family. Inteligent protection
RGU-10
-Instant current leakage and pre-alarm display
- Type A super-immunized earth-leakage protection, suitable for the new industrial environment
- High frequency current filtering
- Programmable sensitivity and delay times
- Small size. Just 3 modules
- Integration into the energy control system of the installation, using RS-485 communications
- Option for earth-leakage reclosing and overload/short circuit protection
CBS-4
- 4 RGU-10 in one single equipment
- Small size. Just 3 modules
- Reduces occupied space and wiring time
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A comprehensive range of meter relays and digital indicators providing measurement, monitoring and control of any electrical or process parameter. Relays combine a highly accurate indicator with high and low set points, which operate alarm and control circuits when the monitored signal value deviates from the set point limits. The range includes digital and analogue meter relays, and digital bargraph indicators and controllers, ideally suited for process control and load shedding applications.
These products provide clear indication of parameter status which can be viewed from a distance of up to eight meters, and are ideally suited for control panels and switchboards, monitoring systems, power generation and control applications.
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Phase control
Current control
Voltage control
Level control
Motor control
Defrost relay for air conditioning and industrial refrigeration
Regulated power supplies
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Monitoring Modules
DOLD Insulation Monitors
For AC-systems up to AC / 3AC 500 V
For DC-systems
For mixed AC-DC systems
For medical rooms according to VDE 01077
DOLD Measuring Relays
Current relays
Voltage relays
Broken wire detecting relays
Reverse power relays
Thermistor motor protection relays
Temperature monitors
Frequency relays
Speed monitors
Phase sequence relays
Fuse monitors
Underload monitors
Motor load monitors
Valve monitor
Level sensing relays
DOLD Fault Annunciators
Fault annunciator with common alarm
First and new signal annunciators
Operation and fault annunciator systems
Programmable fault annunciator systems
Text fault annunciator systems
Text displays
Lamp testers |
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• Functions: Phase sequence-unbalancemissing; current sensitive relay
• With fixed or adjustable threshold
• Adjustable response time and hysteresis
• Power supply: mono, dual, multivoltage
• Dimensions: modular 17,5, 22,5, 45, 55, 70mm
• Mounting: wall mounted, DIN rail 35mm |
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* 71 Series Monitoring relay 10A
* 72 Series Level control relay for conductive liquids 16A
* 80 Series Modular Timers 16 A
* 85 Series Miniature Plug-in Timers 7 - 10 A.
* 86 Series Multifunction timers.
* 86 Series Monofunction timers.
* 87 Series Mono or multifunction timer modules. 5 - 8 A.
* 88 Series Plug-in Timers 5 - 8 A
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- Voltage monitoring in 3-phase mains - monitoring of phase sequence ,phase failure, asymmetry;
- Voltage monitoring in 3-phase and 1-phase mains - multifunctions monitoring relays;
- AC/DC voltage monitoring in 1-phase mains - minimum value supervision with the histeresis mode;
- AC current monitoring in 1-phase mains - histeresis mode and the possibility of setting the tripping delay;
- Current monitoring in 3-phase mains - timing adjustment for start-up suppression time and tripping delay;
- Monitoring of motor temperature - relay responds to short circuit or wire break;
- Level monitoring of conductive liquids MIN, MAX. |
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The Brodersen monitoring relays are high quality products incorporating up-to-date circuit design together with modern, efficient components to ensure a long trouble free life in a wide range of operating conditions.
Power consumption and, thus, heat dissipation are minimal and the entire range has been designed and tested to the latest requirements for EMC immunity and emission.
A wide range of commonly used standards of voltage, current, 3 phase monitoring, temperature and process signals can be monitored by the Brodersen relays.
The installation design is based on DIN rail or 11 pole plug-in mounting and are designed to fit into installation enclosures. |
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Fanox has got available a range of 22,5 mm relays. This extended range offers important business opportunities at several market niches as lifts, pumping, generation, HVAC,…
Due to our interest to offer advantages facing our competence we have enlarged this range.
TST24 is unique in the market. It possesses 3 functions at the same equipment. The user saves space and costs of installation and wiring.
The equipment will have got a thermostat with control of up and down threshold of temperature (Independent Adjustments) with the possibility of connecting the sensor directly to the relay INT to control panel board temperature or install it in the front of the panel with OD (External display) to control external temperature and display at the same item.
Besides, it has got an entry for PTC sensor to control the temperature of motor winding. Finally, the relay includes the phase functions (imbalance, loss and inverse sequence). |
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| Fanox offer a large range of monitoring relays in 22,50 mm housing. You will find Phase relays, thermistors and voltage monitorinbg relays. |
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| Monitoring relays fulfill a variety of monitoring tasks in process, plan and power engineering. All important mains parameter, such as current, voltage, phase sequence, phase failure and asymmetry can be evaluated. |
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The motor protection relay REM 610 is part of the RE_ 610 series of numerical relays for the protection and supervision of utility substations, and industrial switchgear and equipment.
The motor protection relay REM 610 is primary targeted at protecting large asynchronous low-voltage motors and small and medium-sized high-voltage asynchronous motors. REM 610 handles electrical fault conditions during motor start up, normal operation, idling, and cooling down at standstill, e.g. in pump, fan, mill or crusher applications. The relay can be used with both circuit-breaker controlled and contactor-controlled drives. REM 610 can also be used for the protection of cables feeders and distribution transformers that require thermal overload protection besides overcurrent, earth-fault and phase unbalance protection.
The numerical motor protection relays support a wide range of standard communication protocols, among them the IEC 61850,
IEC 60870-5-103, Modbus, and Profibus.
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The market-leading Modular Control System (MCS) offers you more freedom to configure load feeder solutions through 1200 A. MCS load feeder components provide the following control and protection functions:
- Disconnecting means
- Short-circuit protection
- Load switching
- Motor overload protection
- Status indication and signaling
- DeviceNet™ communications |
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Get comprehensive motor protection and SEL-exclusive reporting and trending that save you money in your industrial motor plant and processes. The SEL-749M uses the latest enhancements in the SEL-patented thermal overload model to accurately track the heating effects of operating and cyclic overload currents. The relay offers all basic motor protection features, including short circuit, load loss, load jam, and frequent starting protection as well as imbalance current and phase-reversal protection. Add optional voltage, I/O, and communications capabilities to build the SEL-749M that is just right for your application.
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Fanox offer a motor protection relay, with ATEX certificate (PTB). It is ideal for motor application on explosive atmosphere.
General characteristics:
- Overload protection with thermal memory
- Phase aymmetry and phase sequence protection
- External display module for panel mounting (22 mm)
- Not connected to the motor line (passing through wires).
- Manual reset: when tripping as result of asymmetry or phase failure, the relay could be reset after 2 seconds; should tripping be caused by an overload, the waiting time to reset will be directly proportional to its severity, up to approximately 8 minutes.
- Remote reset: after the waiting time has elapsed by interrupting the auxiliary power supply and reconnecting it again after 3 seconds.
- Mounted on DIN rail EN50022-35.
- UL, cUL listed. Marked CE.
- Maximum terminal section : 2.5 mm2, No. 22-12 AWG.
- Maximum screw torque: 20 Ncm, 1.8 LB-IN.
- Norms: IEC 255-22, IEC 801, EN 50081-2, IEC-255, IEC-947
- Insulation: 2000V - 50Hz - 1min/3kV - 1.2/50 µs.
- Storage temperature: -30°C +70°C.
- Operation temperature / Maximum altitude:
-15°C +60°C / 1000 m. |
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General characteristics:
- Overload protection with thermal memory
- Phase aymmetry and phase sequence protection
- External display module for panel mounting (22 mm)
- Not connected to the motor line (passing through wires).
- Manual reset: when tripping as result of asymmetry or phase failure, the relay could be reset after 2 seconds; should tripping be caused by an overload, the waiting time to reset will be directly proportional to its severity, up to approximately 8 minutes.
- Remote reset: after the waiting time has elapsed by interrupting the auxiliary power supply and reconnecting it again after 3 seconds.
- Mounted on DIN rail EN50022-35.
- UL, cUL listed. Marked CE.
- Maximum terminal section : 2.5 mm2, No. 22-12 AWG.
- Maximum screw torque: 20 Ncm, 1.8 LB-IN.
- Norms: IEC 255-22, IEC 801, EN 50081-2, IEC-255, IEC-947
- Insulation: 2000V - 50Hz - 1min/3kV - 1.2/50 µs.
- Storage temperature: -30°C +70°C.
- Operation temperature / Maximum altitude:
-15°C +60°C / 1000 m. |
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Designed for medium-sized motors, the enhanced 369 Motor Protection System delivers advanced motor health diagnostics, graphical and data rich fault diagnostics, simple six-step setup & configuration and complete traceability of setting changes, enabling industrial facilities to maximize process up-time and optimize rated motor output.
- Motor Settings Auto-Configurator - automatically generate a complete settings file, eliminating the need to manually program hundreds of individual protection settings
- Enhanced Faceplate (E Option) - Improved LCD display with 40 easily visible characters and increased viewing angle
- Motor Health Report (E Option) - "See" how the motor is operating with comprehensive graphs and tables
- Enhanced Motor Learned Data (E Option) - Capture up to 250 sets of motor starting values to learn the starting characteristics of each motor
- Security / Change History Report (E Option) - Patented Security / Change History Report provides complete traceability of all settings changes |
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Monitoring relays, Protection relays
