Acselerator quickset sel 5030 software reduces engineering costs for relay settings and logic programming. These kits are orderable using the part numbers shown in table 2. Sel787 transformer protection relay instruction manual. Refer to the sel787 manual for additional details and other options. The information in this manual is provided for informational use only. The settings editor is the primary programing environment for the relays, where the structure of the dropdown menu is designed specifically for the connected or designed relay. Sel 787 data sheet 2 sel 787 transformer protection relay voltage input. The sel787 transformer protection relay is a versatile, twowinding current differential relay that protects industrial transformers. View and download sel 787 instruction manual online. Aug 15, 2017 sel 787 data sheet schweitzer engineering laboratories, inc.
Sel 5871 relay differences between the sel 5870 and the sel 5871 are explained below. These relays have voltage inputs to provide voltshertz protection with frequency tracking from 20 to 70 hz. Equipment components are sensitive to electrostatic discharge esd. Sel protection relay library electrical engineering. A diagram for a fourwire wye connection is also available in the instruction manual. Jan 18, 2002 sel 3870, 5, 6 instruction manual sel 3870, 5, 6 instruction manual table of contents section 1. Single sel 487b protecting double bus sections with bus tie breaker two single sel 487b relays protecting the two busbars in a breakerandahalf busbar configuration for stations with 10 to 21 terminals figure 18, use three separate sel 487b relays and wire analog current inputs from a, b, and cphases separately into each relay.
Pdf sel311c relay protection and automation system. For this example, we have a 2533mva 6923kv deltawye transformer with vector group, dyn1. The trip logic of each relay can be set to always latch the trip or to latch the trip if the current is above a certain threshold. Protection testing library ptl a comprehensive test. The sel 787 includes a complete set of phase, negativesequence, and. Mar 07, 2001 sel 3515, 6, 7 directional overcurrent relay reclosing relay fault locator integration element standard instruction manual schweitzer engineering laboratories, inc. Sel2440 discrete programmable automation controller. Within the university there is a collection of digital protective relays. Use the over underfrequency and overundervoltage elements to implement load shedding and other control schemes.
Schweitzer engineering laboratories sel787 instruction manual. Date code 20150 instruction manual sel 787 relay table 7. We will start the transformer differential protection calculation with the identification of the transformer vector group. Sel487b bus differential and breaker failure relay. Get traffic statistics, seo keyword opportunities, audience insights, and competitive analytics for ien. Sel relay settings calculations electrical engineering. I work at power company, my company use some protection relay, sel, siemens, schneider, ge,i need this document, pls send to my email. The sel 787 transformer protection relay is a versatile, twowinding current differential relay that protects industrial transformers.
Instruction manual 20726 sel 710 relay motor protection relay instruction manual pm71001nb. Pdf sel protection and monitoring system semantic scholar. Distance relay settings calculations electrical engineering. Sel 311c relay protection and automation system instruction manual. The hardware components and the software platform used by the relay has been analysed. Mar 03, 2021 rts is vendorneutral, which allows you to connect to a variety of relay test sets in your test equipment inventory. Sel sel 787 instruction manual 612 pages transformer protection relay. Using relay overcurrent element status transmitted by the sel 2505. Restraint bias current pu mpu trip region block region. Sel 787 relay instruction manual date code 20140714 the relay contains devices sensitive to electrostatic bus or transformer protection the sel 587z relay is a khf 950 manual more manual pdf files. Nov 12, 2018 choose the sel 787 3e and sel 787 3s for generator stepup and variablefrequency applications.
Protection settings calculations for power transformers. Sep 21, 2018 mode in the sel 787 234 enables inservice testing, which reduces commissioning time. Schweitzer engineering laboratories sel787 manuals manualslib. Nov 12, 2001 sel 311l instruction manual purchase the sel 311l relay with one or a combination of two of the following line current differential channel interfaces. Page 1 sel 787 transformer protection relay instruction manual 20081022 pm78701nb page 2 schweitzer engineering laboratories, inc. Date code 20150 instruction manual sel 787 relay list of tables instruction manual table 1. Sel sel787 manuals manuals and user guides for sel sel 787. The xrio converters model the protection characteristics and tolerances e. In this document, sel 787 refers to all the models in table 1.
Pdf new features sel751 feeder protection relay erick. Sel787 transformer protection relay schweitzer engineering. Use the sel 787 with optional voltage inputs to provide voltshertz protection with. Jun 22, 2015 the sel 787 has a dualslope, phase percentage restrained differential element similar to that found in the sel 587 and sel 387 series of relays. Phase and residual overcurrent protection these protection functions will be tested in the context of training with omicron test universe test modules. We have 1 sel sel 787 manual available for free pdf download. See the sel 787 relay command summary at the end of this manual for the commands available from access level 2. Sel protection and monitoring system murdoch research. The kits can be included as part of the sel 2431 part number at the time a control is ordered or they can be ordered separately using the part numbers listed below. If you do not have acselerator quickset, you can download the program from. Notesfigure 22sel751 feeder protection relay applied throughout the power system figure 44apply sel 751 relays to petersen coilgrounded, impedancegrounded, and ungrounded systems for directional control figure 5 connect5wye or opendelta voltages to sel 751 threephase voltage inputs figure 1212home default fphome screen figure. The sel 787 transformer protection relay provides unsurpassed protection, integration, and control features in a flexible, compact, and costeffective package. Sel 787 transformer protection relay in this thesis, research has been carried out on the design and application of the sel 787 relay in transformer protection.
Sel protection and monitoring system murdoch university. View online or download sel sel787 instruction manual. Instruction manuals schweitzer engineering laboratories. Sel 387 data sheet 3 figure 2 dualslope percentage differential restraint characteristic sel 3875 and sel 3876 relays guard against harmonic conditions resulting from system and transformer events that can cause relay misoperation. Sel 787 data sheet schweitzer engineering laboratories, inc. These relay settings were determined through use of the sel787 instruction manual that was obtained from the sel website. Instruction manual sel sel 787 instruction manual 612 pages. Comparison between high impedance and low impedance bus. Teams will save time because of the robust communication tools that help automate and simplify testing. Nov 07, 2019 sel 5871 relay the following are the differences between the sel 5870 and the sel 5871. Test universe online training supplementary hands on document. The protection of power distribution and transmission systems is a critical application in ensuring safe, reliable and efficient supply of electricity to the consumers. Coordinate with another local relay, such as an sel 551 overcurrentreclosing relay, to provide breaker failure, autoreclose, overcurrent, and ground fault protection functions in addition to current differential protection. In this course the protection devices sel 751a, 311c, and 787 are used.
Finding a particular setting is quite easy because the structure of parameters is modeled closely to that of the relay software. Instruction manual 20151105 sel 5870, 1 relay current differential relay overcurrent relay instruction manual pm58701nb. These relay settings were determined through use of the sel 787 instruction manual that was obtained from the sel website. Sel387l line current differential relay schweitzer. It is designed to work in harsh substation environments and is tested to verify. Simple backup protectionchoose the sel 387l as a simple solution for discrete backup protection.
Date code 20726 instruction manual sel 710 relay list of tables r. Transformer vector group and ct to relay connection. Investigating the capabilities of sel 787 transformer. Table 1 table 2 shows the mounting hardware kits available for the sel 2431. Control system integration electrical controls benfield. You can use the sel 751 directional and nondirectional overcurrent functions to protect virtually any power system circuit or device including lines, feeders, transformers, capacitor banks, reactors, and. Using an sel 321 and an sel 311 series relay to set up pott and dcb schemes mapping analog inputs to a scada protocol for remote indication of fault location in sel 311, sel 321, sel 421, and sel 411l relays. Coordinate with another local relay, such as an sel 551 overcurrentreclosing relay, to provide breaker failure, autoreclose, overcurrent, and ground fault protection functions in. Sel311c transmission protection system documentation. Could you please send me a copy of the pdf thank you. Figure 3 contains the settings editor for the sel 787 relay while figure 4 provides a comparison of the differences in the configuration options between the sel 421 and. Sel 751 data sheet schweitzer engineering laboratories, inc. The only compact platform with ref and up to fourterminal differential protection. The sel 787 includes a complete set of phase, negativesequence.
Sel587 current differential relay online library of manuals. Instruction manual schweitzer engineering laboratories sel787 instruction manual 564 pages transformer protection relay. Sel7872,3,4 transformer protection relay schweitzer. Sel 787 transformer differential protection differential pickup slope1 setting.
Related manuals for sel sel 787 relays sel sel 351s instruction manual 758 pages relay, meter, control, fault locator. Use the sel787 with optional voltage inputs to provide voltshertz protection with. Monitor transformer health with cumulative throughfault current recording, and for the first time in the industry, automatically check and generate differential compensation settings with the commissioning assistant software. Application note testing the sel adaptive slope restraint. Note that this characteristic differs from the adaptive slope characteristic used in the sel 487e transformer protection relay.
It features powerful automation tools that reduce complexity. The protection allows for the mitigation of damage due to various network faults, preventing equipment damage and reducing downtime that can often result. Sel787 data sheet 2 sel787 transformer protection relay voltage input. The sel 5870 trip logic can be set in one of two configurations, while the sel 5871 can be set in one of three configurations. Pdf sel787 transformer protection relay major features and. The sel 787 offers an extensive variety of protection features, depending on the model and options selected. When the overcurrent elements of the transformer lowside relay pickup and the overcurrent elements in the feeder relays do not, the detected fault must be located on the bus. Sel 787 instruction manual pdf download manualslib. Nov 07, 2019 schweitzer engineering laboratories, inc. Equip the sel 387e with optional dual failover ethernet communications for telnet, ftp, readonly web server, and iec 61850 communications support.
The sel787 transformer protection relay provides unsurpassed protection, integration. Kindly assist with transformer diff, line protection, etc pdf and excel calculations. For protection functions specific to a given mot, the relay is referred to as sel 787 4x, sel 787 3e, or sel 787 3s. Sel 351s relay instruction manual date code 20080103 setting the relay relay word bits used in sel ogic control equations 31 sv1 sv2 sv3 sv4 sv1t sv2t sv3t sv4t 32 sv5 sv6 sv7 sv8 sv5t sv6t sv7t sv8t 33 sv9 sv10 sv11 sv12 sv9t sv10t sv11t sv12t 34 sv sv14 sv15 sv16 svt sv14t sv15t sv16t 35 79rs 79cy 79lo sh0 sh1 sh2 sh3 sh4. Relay settings calculations electrical engineering. Undetectable permanent damage can result if you do not use proper esd procedures. The sel 2505 is an excellent auxiliary relay or a simple way of expanding the number of io points available in a system of relays. Sel 587z instruction manual date code 20020903 caution. Competitive analysis, marketing mix and traffic alexa. We have 1 schweitzer engineering laboratories sel787 manual available for free pdf download. Sel 751a data sheet sel 751a feeder protection relay major features and benefits the sel 751a feeder protection relay provides an exceptional combination of protection, monitoring, control, and communication in an industrial package. Literature flyers data sheets guideform specifications installation guides instruction manuals instruction sheets settings sheets configurable labels. Schweitzer engineering laboratories sel787 manuals.
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