|
|
| The Model 712 series Alternating Relay is designed for duplex pumping systems where it is desirable to equalize pumping run time. The solid state alternating circuit drives an internal electromechanical relay. A continuous power source and control switch are required. The control switch (float, pressure or other isolated contact) is connected between the L1 terminal and the control terminal. Each time the control switch is opened the output contacts will change status. Indicator lights on the case show the internal relay status. Setting the top toggle switch to Load 1 or Load 2 will lock the relay in position, preventing alternation. |
|
| REA, the latest arc protection system developed by ABB, combines a unique sensor technique with instantaneous and reliable fault detection, solid state trip outputs and an extremely fast total system operating time. These are qualities that minimize damage, allow power distribution to be smoothly restored, and may even save human lives. The use of the extension unit allows the protection area to be extended. |
|
The SIPROTEC 7SS60 system is an inexpensive numerical differential current protection for busbars in a centralized configuration.
It is suitable for all voltage levels and can be adapted to a large variety of busbar configurations with an unlimited number of feeders. The components are designed for single busbars, 1ฝ-breaker configurations and double busbars with or without couplers.
The use of matching transformers allows phase-selective measurement. Single-phase measurement can be achieved by using summation current transformers.
Features
Optimized for single busbar and 1ฝ circuit-breaker configurations
Suitable for double busbars with or without couplers
Separate check zone possible
Short trip times
Unlimited number of feeders
Differential current principle
Low-impedance measuring method
Numerical measured-value processing
Suitable for all voltage levels
Low demands on CTs thanks to additional restraint
Measured-value acquisition via summation current transformer or phase-selective matching transformers
Maintained TRIP command (lockout function)
Centralized, compact design
Combinative with separate breaker failure protection
|
|
Lower operating costs and increase automation capabilities by replacing older electromechanical relay schemes, control switches, and metering devices in one device. Provides sensitive, secure combination of phase, negative-sequence, residual-ground, and neutral-ground overcurrent elements, including directional control, and programmable US and IEC time-current curves for complete distribution system protection. Large front-panel professional keyboard with local display panel and programmable operator control interface pushbuttons replaces control switches, indicating lamps, and wiring at the breaker control panel. Available with optional power elements, sensitive directional earth fault elements, voltage sag, swell, and interruption records.
|
|
SIPROTEC 7SV600 is a numerical relay used for circuit-breaker failure protection. It is suitable for use at all voltage levels and in all applications.
Protection functions
Circuit-breaker failure protection (single or three-pole with/without current)
Independently settable delay times for operation with and without current
Single or two-stage time delay of the busbar trip command
Re-trip (cross trip) stage (1st stage of the 2-stage operation)
Intertrip facility (via teleprotection interface)
End-fault protection with intertrip
No current control using the circuit-breaker auxiliary contacts
Features
Highly sensitive current detection
2-out-of-4 check of the current detectors
Short reset time, negligible overshoot time
Can be initiated by phase-segregated or common-phase trip commands
End-fault protection
Assignable output relays, LEDs and binary inputs
Monitoring functions
Monitoring of circuit-breaker auxiliary contacts
Operational current measured values
Self-supervision of the relay
Event buffer
Fault protocols
Oscillographic fault recording |
|
| The NEW 841 Current Sensing Relay expands and enhances Magnecraft's current Time Delay Relay and Sensor product line. The 841 Current sensor Series is a complete current sensing solution in one modular package which mounts directly to a Din rail. This product allows the user to monitor the current of one circuit (1 to 8 amps) and switch another circuit incase of an over current or under current condition. The built in time delay feature allows the user to accurately switch the output anytime between 0 to 10 seconds after the preset current monitoring condition is violated. This product carries with it agency certifications from UL and CE. This new product announcement continues the corporate mission of Magnecraft to become the preferred provider of industrial control relays and sockets by innovating the broadest product range available anywhere. Now available. |
|
Power Solution for Bus Bar Differential Protection
Use the SEL-487B Bus Protection and Industrial breaker Failure Relay to protect bus systems with up to 18 terminals (54 CTs) and 6 protection zones. Differential and directional current elements provide increased security and fast fault detection. The SEL-487B provides accurate, timely monitoring and metering of busbar, feeder, and substation signals. Terminal currents, breaker and disconnect positions, station dc voltage levels, and three-phase voltage are continuously monitored and updated. Simplify interconnect wiring using multiple communications protocols and ports. Use different ratio CTs and nondedicated CTs with the SEL-487B. Use CT ratios that differ by up to a factor of 10:1. Use the same CT for differential protection, metering, backup relaying, and other functions. |
|
| Comprehensive and scaleable bus and breaker fail protection for LV, HV and EHV busbars. The B90, a member of the UR Family, features integrated protection and breaker failure for re-configurable LV, HV, EHV multi-section busbars up to 24 feeders. Use one or more B90s together to build a sophisticated protection system that can be engineered to meet the specific application requirements. The B90 performs fast and secure low impedance bus protection with sub-cycle tripping time averaging 0.75 cycles. |
|
RGU-10 (earth leakage protector relay)
- Instant current leakage and pre-alarm display
- Small size. Just 3 modules
- Type A super-immunized earth-leakage protection, suitable for the new industrial environment
- High frequency current filtering
- Programmable sensitivity and delay times
- 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 (multipoint earth leakage scanning sytem)
- 4 RGU-10 in one single equipment
- Small size. Just 3 modules
- Reduces occupied space and wiring time
- RS-485 Communications
|
|
The differential current relays type SKC is intended for the protection of industrial generators, large motors, two winding power transformers and short lines. The following functions are provided:
thermal (49) for transformer programmable on one of the two sides;
overload (51) and short circuit (50) independently programmable on both sides;
earth fault (50N-51N) or restricted earth fault (87N);
biased differential function for transformers with second and fifth harmonic restraint (87T);
biased differential function for motors, generators, and short lines (87G). |
|
SIPROTEC 4 7UT6 are used for fast and selective fault clearing of short-circuits in transformers of all voltage levels and also in rotating electric machines like motors and industrial generators, for short lines and busbars. The protector relay can be parameterized for use with three-phase and single-phase transformers.
Differential protection for
2- up to 5-winding transformers (3-/1-phase)
motors and generators
short 2 up to 5 terminal lines
busbars up to 12 feeders (phase-segregated or with summation CT)
Protection functions
Differential protection with phase-segregated measurement
Sensitivemeasuring for low-fault currents
Fast tripping for high-fault currents
Restraint against inrush of transformer
Phase/earth overcurrent protection
Overload protection with or without suppliers of temperature measurement
Negative-sequence protection
Breaker failure protection
Low/high-impedance restricted earth fault (REF)
Voltage protection functions (7UT613/633)
Flexible communication interface, eg. IEC 61850 Ethernet protocol. |
|
SIPROTECฎ easy are 2-stage numerical overcurrent protection devices and are primarily intended as a radial feeder or transformer protection (backup) in medium-voltage networks.
They provide definite-time and inverse-time characteristics according to IEC and ANSI standards. They prove themselves every day in substations and transformer substations.
The SIPROTEC easy 7SJ45 is powered by current industrial transformers (CT), the power is supplied from the load or short circuit current via the standard current transformers. This makes it particularly interesting for use in substations for the secondary distribution. The auxiliary power supplied SIPROTEC easy 7SJ46 is suitable for universal application due to a wide range AC/DC power dispensing.
Features:
1. compact dimensions, simple to install - "plug and protect,
2. housing - suitable for all environments,
3. modern measurement technique,
4. high availability thanks to permanent self-monitoring,
5. very simple and quick parameter setting using dip switches. |
|
| A comprehensive range of electronic control products, providing continuous monitoring and protection of any electrical parameter. When the monitored parameter deviates from the desired set point limit, the relay will operate to protect the power asset. Designed to suit a wide variety of applications, the range offers both traditional and technologically advanced products, including single parameter units, earth leakage protection, vector shift and ROCOF, and multifunctional microprocessor based system protective relays. |
|
| The MGC1000 are microprocessor based, digital type, generator protection relays which provide thermal protection for three phase professional generators, phase fault, ground fault, and unbalanced current protection. |
|
SIPROTEC 7RW600 is a numerical, multifunction relay for connection to voltage transformers. It can be used in distribution systems, on transformers and for electrical machines. If it detects any deviation from the permitted voltage, frequency or overexcitation values, it responds according to the values set.
SIPROTEC 7RW600 can be used for the purposes of system decoupling and for load shedding if ever there is a risk of a system collapse as a result of inadmissibly large frequency drops. Voltage and frequency thresholds can also be monitored.
This voltage, frequency and overexcitation relay can be used to protect industrial generators and transformers in the event of defective voltage control, of defective frequency control, or of full load rejection, or furthermore islanding generation systems. |
|
Select the SEL-321 Relay for complete distance protection including single-pole tripping and series-compensated lines.
Apply the SEL-321 Relay for primary and/or backup single-or three-pole trip transmission line protection,including series-compensated lines.Use the advanced single-pole tripping logic with phase selection, open-pole interval protection,and phase discordance logic with three-pole trip to protect against excessive single-pole-open events. Select the load-encroachment feature to prevent operation of three-phase elements under high load conditions. Use the time-overcurrent elements to provide current-dependent, time-delayed fault detection along the protected line and backup protection for remote terminals. SEL SEL-321 has six settings groups for maximum protection scheme flexibility, allow application with bus-tie breakers or for remote system reconfiguration.
|
|
The SIPROTEC 4 7SA6 distance protection relay for all voltage levels is a universal device for protection, control and automation on the basis of the SIPROTEC 4 system. Its high level of flexibility makes it suitable to be implemented at all voltage levels between 5 to 765 kV. With this relay you are ideally equipped for the future: it offers security of investment and also saves on operating costs.
High-speed tripping time
Low-impedance setpoints to protect also very short lines
Self-setting power swing detection for frequencies up to 7 Hz
Current transformer saturation detector ensures fast tripping and highest distance measurement accuracy
Phase-segregated teleprotection for improved selectivity and availability
Digital relay-to-relay communication by means of an integrated serial protection data interface
Adaptive auto-reclosure (ADT)
One of the communication interfaces is system interface for connecting to a control system via IEC 61850 Ethernet protocol. |
|
SIPROTEC 7SS52 numerical protection is a selective, reliable and fast protection for busbar faults and breaker failure in medium, high and extra-high voltage substations with various possible busbar configurations.
The protection is suitable for all switchgear types with iron-core or linearized current transformers. The short tripping time is especially advantageous for applications with high fault levels or where fast fault clearance is required for power system stability.
The modular hardware allows the protection to be optimally matched to the busbar configuration. The decentralized arrangement allows the cabling costs in the substation to be drastically reduced. The 7SS52 busbar protection caters for single, double or triple busbar systems with or without and quadruple busbar systems without transfer bus with up to: 48 bays, 16 bus couplers, and 24 sectionalizing isolators and 12 busbar sections. |
|
Select the SEL-351A Distribution Protection System for complete, economical distribution feeder protection, automation, monitoring, and control.
Provides primary or backup overcurrent protection with directional control on distribution systems with sensitive phase, negative-sequence, residual, and neutral overcurrent elements. Includes under-/overfrequency elements, accurate metering, reclosing control, and an optional local front-panel display.
|
|
Tailored for smaller distributed generation installations, SVF5740 is a digital-based unit intended for protect the utility from having industrial generators island on the distribution networks after the utility disconnets power from the feeders.
Learn more about SVF5740 inside product web pages. |
|
The Earth Leakage Relay's "ELR" - CONTREL families, give the technical solution to the installator and the end user for every applications.
It's wide setting range, for both Current (0,025ธ25 A) and Voltage (0,02ธ5 Sec), allows to perform a real selectivity in the Electrical Installations.
ELR-1E
Earth Leakage Relays. Flush mounting version DIN 96x96 mm with reduced depth enclosures.
ELR-3C
The ELR-3C, maintain all the basic characteristics of the DIN 96x96 mm series, although its reduced dimensions.
ELR-40 / ELR-m40
Earth Leakage Relay Flush mounting versions DIN 48x96 mm with reduced depth of 75 mm.
ELR-8V / ELR-8tcs / ELR-8MV-tcs
Flush mounting version DIN 96x96 mm with advanced functions.ELR-8MV-tcs incorporates the frontal display.
ELR-2 / ELR-2M
Flush mounting version DIN 96x96 mm with reduced depth enclosures. ELR-2M fitted with the mechanical signalisation.
ELR-3E
The ELR-3E, maintain all the basic characteristics of the DIN 96x96 mm series, although its reduced dimensions.
ELR-7
Built in a flush mounting DIN 48x48 mm with a reduced depth of 72mm, including wiring terminals.
ELR-91 / ELR-92
This new series of relays, flush mounting according to DIN 72x72mm, on top of granting a high reliability level.
|
|
Product Features:
- To be used with CT-1 industrial transformers.
- Modular size. DIN rail mounting .
- Sealable front cover |
|
The feeder protection relay REF 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 protection relay REF 610 is primarily targeted at the protection of incoming and outgoing feeders in distribution substations. REF 610 is also used as back-up protection for motors, industrial transformers and professional generators, in utility and industry applications.
The numerical feeder protective relays support a wide range of standard communication protocols, among them the IEC 61850,
IEC 60870-5-103, Modbus, Profibus and DNP.
|
|
| The SEL-751A Feeder Protection Relay is designed to be used in industrial and utility feeder protection, with flexible I/O and easy mounnting options. Maximize control scheme flexility with time- and instantaneous overcurrent, over- and undervoltage, and frequency elements. The four programmable front-panel pushbuttons are convenient for quick, personalized control. Choose from Ethernet or serial communications and serveral protocols including MIRRORED BITS, Modbus, and IEC 61850. The base unit includes 3 digital outputs and 2 digital inputs. There are three card slots for optional I/O cards. |
|
Planned to eliminate static electricity with a 6000 Volts
Technical Features:
It has an on/off switch with a luminous indicator to indicate net presence and protection in case of anomalies on the equipment.
The feeder can be put on the machine frame or on the wall; it is preferable that it is in front of the person in change of the machine so that the net led can always be seen. In case of short circuit directed to earth, the current is limited to a maximum of 100 milliampere.
The Feeder group must be earth connected either by assemblage on the machine already earthed or by a copper wire that connects the earth terminal that is placed on the feeder with the machine or with possible metallic earthed pipings. |
|
The REM 543/545 terminals are ideal for protection and control of your electrical motors and power professional 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 manufacturers 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, professional fans and industrial 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. |
|
| 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 professional generators. SEL designed the SEL-300G to meet the needs of a variety of users, including utility and industrial power stations and alternator manufacturers. |
|
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 professional remote control of professional circuit breakers or other user-defined functions. |
|
|
|
Monitoring relays, Protection relays
