The sel751a relay is equipped with four levels of phase instantaneous overcurrent elements 50p1, 50p2, etc. Page 58 sel2812mt transceiver to connect to the sel2030 or sel2032 and bring irigb signal with the eia232 input. The 750760 feeder protection system is a digital relay intended for the management and primary protection and control of distribution feeders. Solid state or microprocessor based relays are generally equipped with a large variable of settings and curve options and some electromechanical relays provide for adjustable calibrated settings. Feeder protection relay instruction manual pm751a01nb provided by northeast power systems, inc. Sel 751a relay manual keyword found websites listing. The sel751 feeder protection relay is ideal for directional overcurrent, fault location, arcflash detection, and highimpedance fault detection applications.
Sel751a feeder protection relay major features and benefits the sel751a feeder protection relay provides an exceptional combination of protection, monitoring, control, and communication in an industrial package. Highspeed, highcurrent interrupting outputs minimize the total faultclearing time. Increased security combine lightsensing technology with fast overcurrent protection to provide high speed without false tripping. Page 2 sel products appearing in this document may be covered by u. Sel 751a feeder protection relay relay dan kontaktor listrik.
The sel751a provides complete feeder protection, with over current, over voltage, under voltage, and frequency elements. Support lowenergy analog lea voltage inputs in padmounted and. Prevent insulation damage with a linecable thermal element. Date code 20100129 instruction manual sel 751a relay. The sel 751 feeder protection relay offers combined light and highspeed overcurrent detection for arcflash events. New schweitzer engineering sel751 751101acaca77850220. Nov 12, 2018 feeder protection relay sensitive earth fault sef protection improve ground protection with the 200 ma neutral input. Feeder protection relay the sel751 is the right solution for industrial and utility feeder protection, with flexible io options, easy mounting, and fast settings. Sel751 relay feeder protection relay short file name schweitzer engineering laboratories sel protection relay library record number. You can protect ungrounded, solidly grounded, petersen coilgrounded, or other impedancegrounded systems with a sensitive 67n or 50n element for directional or nondirectional ground overcurrent protection, respectively.
The sel 751 supports additional protection and communications options, such as fault location, highimpedance fault detection, ethernetip, and an integrated web server. The multilin 850 is an integrated, one box solution, used to provide comprehensive protection, control and monitoring of underground and overhead single or dual feeders. View and download schweitzer engineering laboratories sel751 instruction manual online. Jual sel 751a feeder protection relay relay dan kontaktor. Sel 751a instruction manual pdf download manualslib. Feeder protection relay sel recommends selecting the sel 751 feeder protection relay in place of the sel 751a. This easy to use relay provides comprehensive protection functions for feeders and back up protection for bus, transformers and transmission lines at a reduced product life cycle cost. The sel751a feeder protection relay provides an excep tional combination. Sel751 feeder protection relay instruction manual sertec relay. This combination provides the ideal solution for speed and security. Sel751feeder protection relaythe sel751 is the right solution for industrial and utility feeder protection, with flexible io options, easy mounting, and f. Directional overcurrent, arcflash detection, and highimpedance fault detection title.
Flexible io options, easy mounting, and fast settings make the sel 751 the right solution for industrial and utility feeder protection. Schweitzer engineering laboratories sel751 manuals. Sel751 feeder protection relays sel751 relay elements. Sel751 and sel751a feeder protection relay improved safety reduce arcflash energy with fast detection and tripping. The sel 751 protection features depend on the model selected.
It is also available with a color touchscreen display. When properly implemented, this protection may, reduce incident energy exposure. Sel751 feeder protection relays offer easy monitoring and. Express installation guide online library of manuals. Sel751 feeder protection relay, pc interface spanish. Schweitzer microprocessorbased distribution feeder protection relay, model number sel751a, part number 751a01aoxoxox850000. The sel 751 feeder protection relay provides a comprehensive combination of protection, faultlocating features, monitoring, control, and communication in an industrial package.
This type of sensor is used for confined areas, such as breaker compartments. Pdf new features sel751 feeder protection relay erick. Smart vfi switchgear and sel751 feeder protection relays. The sel751 is the right solution for industrial and utility feeder protection, with flexible io options, easy mounting, and fast.
The multilin 850 relay is a member of the multilin 8 series protective relay platform and has been designed for the management, protection and control of feeder applications. Sel751a feeder protection relay documentation schweitzer. Sel710 motor protection relay sel751 feeder protection relay sel751a feeder protection relay. Page 1 sel751 relay feeder protection relay instruction manual 20170927 pm75101nb. Aug 10, 2012 quantity in the relay, such as for display points, and selogic equations. Relai perlindungan pengumpan sel751a adalah solusi yang tepat untuk perlindungan pengumpan industri dan utilitas, dengan opsi i o yang fleksibel, pemasangan mudah, dan pengaturan cepat. Page 188 wireless fault detection discover the selt400l timedomain line protection, the worlds. It offers arcflash mitigation, fault locating, event analysis, and more. Sel751a feeder protection relay schweitzer engineering.
Sel protection relay library electrical engineering. Detail sel 751a feeder protection relay transformer. Schweitzer engineering laboratories sel751 instruction manual 934 pages. Overcurrent elements for phase fault detectionthe sel751 relay provides the. Warranty all new schweitzer sel751as come with the original manufacturers warranty. Sel751 feeder protection relay schweitzer engineering. Date code 20170927 instruction manual sel751 relay.
Prevent insulation damage with a cableline thermal element. Feeder protection relay the sel751 feeder protection relay is ideal for directional overcurrent, fault location, arcflash detection, and highimpedance fault detection applications. Sel751a feeder protection relay mhz electronics, inc. The multilin 850 relay, a member of the multilin 8 series protective relay platform, is designed for the management, protection and control of distribution feeders.
Instruction manual 20726 sel710 relay motor protection relay instruction manual pm71001nb. The sel751 supports additional protection and communications options, such as fault location, highimpedance fault detection, ethernetip, and an integrated web server. Untuk informasi harga, penawaran dan stok barang silahkan hubungi kami di bawah ini. Sel751 feeder protection relays offer easy monitoring and controlling option. Panel diagrams specifications compliancedesigned and manufactured under an iso 9001 certified quality management system 47 cfr 15b, class a note. Sel751 feeder protection relay documentation schweitzer. Irrored you can also reset the targets, synchronize with irig, and set the time and date. Feeder protection relay the sel 751 is the right solution for industrial and utility feeder protection, with flexible io options, easy mounting, and fast settings.
Schweitzer engineering laboratories sel751 instruction manual. Sel recommends selecting the sel751 feeder protection relay in place of the sel751a. Use a fiberoptic cable pair with st connectors c805 or c807 to connect to the port 2 on the sel 751a. If supported, you can run arcflash sensor diagnostic tests. This type of sensor is used for large areas, such as busbars. Sel751a feeder protection relay supplier,exporter,india. The sel 751 feeder protection relay is ideal for directional overcurrent, fault location, arcflash detection, and highimpedance fault detection applications. Synchronism check device ansi device 25 optional undervoltage elements ansi device 27 directional power ansi device 32 iec cablelinemachine thermal overload ansi device 49 phase instantaneous, definitetime and inversetime overcurrent ansi device 50p51p. Sel751a feeder protection relay the sel751a feeder protection relay is the right solution for industrial and utility feeder protection, with flexible io options, easy mounting, and fast settings. Sel2bfr, 2bfr type sel2bfr,2bfr breaker failure relay and monitor sel2bfr sel151 type sel151 phase overcurrent relay with voltage control. May, 2016 a printed instruction manual is available upon request.
Date code 20100129 instruction manual sel751a relay. Sel751 feeder protection relay 2 ms arcflash protection and feeder relay in one platform directly monitor and control your system using the 5inch, 800 480 color touchscreen display. The sel 751 provides complete protection for radial and looped distribution circuits. Sel751 feeder protection relay the sel751 is the right solution for industrial and utility feeder protection, with flexible io options, easy mounting, and. Barefiber sensors detect light from the arc flash over the entire length of the fiber loop. Sel751 data sheet major features and benefits the sel751 feeder protection relay provides a comprehensive combination of protection, faultlocating features, monitoring, control, and communication in an industrial package. The sel487e relay provides comprehensive protection, automation, and control for transformers. Schweitzer engineering laboratories sel751 manuals manualslib.
On extremely heavily loaded feeders, sel751 loadencroachment logic adds. You can protect ungrounded, solidly grounded, petersen. The sel751 protection features depend on the model selected. The sel487e2 variant is identical to the sel487e relay in all aspects but has been relabeled for use in phasor measurement applications that prohibit personnel from accessing. Instruction manual sel 751a instruction manual 641 pages. The sel751 feeder protection relay provides a comprehensive combination of protection, faultlocating features, monitoring, control, and communication in an industrial package. For more information on relay setting using a pc configuration, please refer to section 3 of the sel751a instruction manual. Sel 751 walk around feeder protection relay english.
Protection schemes and monitoring are configured using schweitzer engineering laboratories sel relays, such as sel751 feeder protection relay and sel735 power quality meter. The sel751 feeder protection relay provides a comprehensive. Sel 751a relay instruction manual keyword found websites. If you are having trouble finding the instruction manual you are looking for then please reach out. Sel 751 feeder protection relay starting up english. Flexible io options, easy mounting, and fast settings make the sel751 the right solution for industrial and utility feeder protection. Learn how to configure settings on the sel751 feeder protection relay including settings for overcurrent protection and timeovercurrent protection. Use of this equipment in a manner other than specified in this manual can.
Page 58 sel 2812mt transceiver to connect to the sel 2030 or sel 2032 and bring irigb signal with the eia232 input. Wiring diagrams sel751 feeder protection relaya diagram for a fourwire wye connection is also available in the instruction manual. Sel 751 data sheet major features and benefits the sel 751 feeder protection relay provides a comprehensive combination of protection, faultlocating features, monitoring, control, and communication in an industrial package. This equipment has been tested and found to comply with the limits. Sensitive earth fault sef protection improve ground protection with the 200 ma neutral input. For more information on the setting procedures, please refer to the sel751a instruction manual, or contact your local sel representative. Sel751 feeder protection relay, industrial engineering.
Oct 14, 2019 sel751 sel751 feeder relay sel751 easily mounted point sensors detect light from the arc flash. Schweitzer sel751a distribution feeder protectionrelay. The sel751a feeder protection relay is for industrial and utility feeder protection with flexible io options, easy retrofit, and fast setup and configuration. Sel751 feeder protection relay applied throughout the power system.
Support lowenergy analog lea voltage inputs in padmounted. Spesifikasi sel 751a feeder protection relay relay dan kontaktor listrik. The sel751 provides complete protection for radial and looped distribution circuits. We have 1 sel 751a manual available for free pdf download.
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