Disabling the sel311l 87l function through relay logic free. Sel will continue to support and warranty the sel 2032. Sel 311l, 6 relay protection and automation system instruction manual pm311l01nb. Sel 2bfr, 2bfr type sel 2bfr,2bfr breaker failure relay and monitor sel2bfr sel 151 type sel 151 phase overcurrent relay with voltage control. Instruction manuals schweitzer engineering laboratories. Sel2032 communications processor schweitzer engineering. Sel 311l rs422 db25f exmux 3500 sync iu db25m sel 311l signal 22txda 1414txdb 33rxda 1616rxdb 1717rxca 99rxcb. Opc certification is the process of ensuring that applications meet the standards specified by the opc foundation. Schweitzer engineering laboratories user manuals download. However, the sel311l and sel411l are two completely independent. Sel 4214, 5 protection, automation, and control system and sel 400 series relays. The sel 700g provides a complete protection and synchronization solution for synchronous generators.
One place for all sel relay manuals and technical data. Protection,automation, control 318 pages summary of contents for sel sel 787. Corporate headquarters 2350 ne hopkins court pullman, wa 99163 usa phone. Entergy decided to use a sel 311l and sel 421 for primary and backup protection as shown in figure 6. Sel 311l unit powers on and responds to controls, but no further testing can be completed at this time. Product instruction manuals define the acronyms and relay element names used as column labels in the event report, as well as the symbols used to display relay element operating states. The settings are explained in the following section.
The operating time of the sel311l, including output time, is. Sel 311l data sheet schweitzer engineering laboratories, inc. Use single or dual differential channels for reliability. Reduce total project construction and operation costs through integration of the included fourshot recloser and relay logic operators into your automation system. Sel 311l 1,7 printed english instruction manual 4 p m 3 1 1 l 0 2 additional cost 1 14 outputs consist of 8 standard and 6 highspeed highcurrent interrupting contacts. For example, full element testing of an sel 311l relay could take up to 12 hours to manually test while the same test can take 4 hours by using an automated software. If you are having trouble finding the instruction manual you are looking for then please reach out. This application guide provides insight into selecting between the sel 3530 and sel 3555 rtacs and how to change from an sel 3530 to an sel 3555. Opc server for schweitzer engineering laboratories sel311l. If we know data speed then we can select exact data speed, or otherwise select auto detect. Sel allows students to enroll in a computer based training cbt 101 to gain basic familiarity with their relaying system. Sel 551 relay acdc connection diagrams for example applications figure 3. Looking at each of the modifications in turn, the fault matrix is three sets of thyristors controlled by three separate microcontrollers.
The advantage i see from this scheme is that an entire protection system primary or backup can be taken out of service for maintenance modifications, without the loss of bf protection. Sel 311l, 6 relay protection and automation system. Comparing protectiverelaying commissioning and test. The sel rtacs come in a variety of form factors and selecting the correct one can be difficult. Download citation sel311l overreaching impedance pilot protection. Sel 311c protection and automation system powerful solutions for transmission line protection major features and benefits the sel 311c protection and automation system is a fullfeatured, threepole tripreclose relay for transmission protection applications. We have 1 sel sel 734b manual available for free pdf download. They are not compatible to be applied in a linecurrent differential scheme. View and download schweitzer engineering laboratories sel 311l instruction manual online. Sel sel311l line current differential protection and. View online or download sel sel 351s instruction manual. One caveat with automated testing is that because of the process, the test routine shelters the design and relay settings from the relay tester. Sel produces thorough documentation for their relays including application notes on advanced configurations such as pott and putt. The sel 751 feeder protection relay provides a comprehensive combination of protection, faultlocating features, monitoring, control, and communication in an industrial package.
Sel 551 distribution relay online library of manuals. Testing procedure for sel 311l distance and differential relay. A db25f to db25m cable is used to connect the sel 311l rs422 io to the exmux 3500 synch iu. Using a computer, a user can program the microcontrollers to fire the thyristors for a. The opc server for schweitzer engineering laboratories sel 311l is opc certified. Pdf sel311l line current differential protection and. In this diagram the physical connection made from transformdores performing current measurement to the same differential relay is appreciated. Restraint for external faults uses an easytoset vector ratio of.
View and download sel 787 instruction manual online. Refer to the chart below and the sel 311l exmux 3500 manuals for cabling pin out information. However, the sel311l and sel411l are two completely. Drawing labels, details, and other text information extracted from the cad. Protect lines and equipment with an extensive range of protection elements. Sel 4217 protection, automation, and control system with sampled values. Sel line current differential protection and automation system model. Pdf line current differential protection automation and control. Configuring the sel 734b establish sel communication between pc and the sel 734b after the sel 734b is turned on, the status of the device should be checked. This system was to simulate a simple distribution network and a variety of different fault conditions to. System wide protection criteria valley electric association. Sel311l line current differential protection and automation system. Opc certification requires extensive testing to ensure true interoperability. Protection of transmission lines is essential to ensure a correct operation of power systems.
Pdf sel311l line current differential protection and automation. Sel 311l current differential relay over the rfl exmux 3500 ip. Sel recommends selecting an sel 3555 or sel 3530 realtime automation controllers rtac in place of the sel 2032. A failure in the line current differential hardware does not impact backup protection. Integration of sel relays to provide motor, transmission line and. The sel 311l relay implements line current differential protection using communications interfaces, a processor, and contact outputs separate from those used for backup protection and control. Introduction ge grid solutions introduction overview the 339 motor protection system is a microprocessor based relay providing suitable protection of medium voltage motors. Enable up to four zones the innovative differential protection in the sel311l of.
Sel sel 734b reference manual 90 pages capacitor bank control. This method works for line pickup even when uneven breaker operation occurs. Use the sel311l line current differential relay with integral fourzone distance backup for easytoapply, highspeed line protection. You can check the status of the sel 734b with the quickset hmi directly from the frontpanel menu or by using a terminal program. The unit is used and has some scuffs and scrapes from normal wear. Disabling the sel311l 87l function through relay logic scribd. Sel 551 relay provides overcurrent protection and reclosing for a utility distribution feeder includes fast bus trip scheme for line recloser installations, the sel 551 relay is connected similar to figure 3. A powerful suite of phase and ground protection elements coupled with outofstep block. However, the sel 311l and sel 411l are two completely independent hardware and firmware platforms. Selection file type icon file name description size revision time user. The generalized alpha plane principle is similar to the twoterminal sel 311l. Sel 3610 port server, sel 3620 ethernet security gateway, and sel 3622 security gateway. Figure 2 shows how the event report ac current column data relate to the actual sampled waveform and rootmeansquare rms values.
Apply subcycle current differential protection with included fourzone distance and directional overcurrent backup. This application note assumes familiarity with the operation of the exmux 3500 and the sel 311l. Sel protection relay library electrical engineering. The rtac products provide modern and powerful alternatives that can manage advanced automation applications.
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