{"schemaVersion":1,"slug":"mechanism-pump-run-timeout","name":"Mechanism pump-run timeout","kind":"symbol","abbreviation":"MPT","aliases":["Stored-energy mechanism supervision","switchgear Stored-energy mechanism supervision","switchgear","Switchgear","Pump run feedback","Pump timeout alarm"],"category":"control-circuits","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"Detects an unusually sustained pressure-maintaining pump operation in the selected mechanism.","description":["Detects an unusually sustained pressure-maintaining pump operation in the selected mechanism. A stored-energy breaker mechanism has charging, release, indication and supervision functions. Motor supply, stored spring energy and the ability to complete an opening operation are separate drawing concerns.","In a switchgear panel, a charging motor replenishes the mechanism after an operation. Supervisory contacts let the controller report an incomplete charge or repeated charging demand before an operator requests another operation. For this reference, the drawing identifies “Pump run feedback” at the input and “Pump timeout alarm” at the output. Normal duty and ambient conditions affect interpretation.","Show the individual contacts and the relevant motor or release circuit. Supply voltage, charging time, operating duty and permissible alarms must follow the chosen mechanism documentation. The functional block is an independent explanation of this named application. Equipment-specific ratings, terminal connections and operating conditions must be established in the project documentation."],"readingNotes":["Start at the named input: Pump run feedback. Identify its source device or document and the state represented on the drawing.","Follow the named output: Pump timeout alarm. Cross-reference its destination and separate the command from confirmation that the equipment responded.","Normal duty and ambient conditions affect interpretation.","Show the individual contacts and the relevant motor or release circuit. Supply voltage, charging time, operating duty and permissible alarms must follow the chosen mechanism documentation."],"drawingChecklist":["Label the source and connection reference for pump run feedback.","Identify the destination and defined state of pump timeout alarm.","Record the equipment or control-document revision supporting this functional block.","Check this application limit in the project design: Normal duty and ambient conditions affect interpretation."],"distinction":"Normal duty and ambient conditions affect interpretation. This reference describes the named application; it does not establish a new IEC graphical symbol, an ANSI device-function number or an exact manufacturer connection diagram.","facts":[{"label":"Representation","value":"Functional block"},{"label":"Installation focus","value":"Switchgear"},{"label":"Input / boundary","value":"Pump run feedback"},{"label":"Output / connection","value":"Pump timeout alarm"},{"label":"Lookup label","value":"MPT is a library lookup label, not a standard device designation."}],"references":[{"sourceId":"pi26-masterclad","relevance":"Public technical context for stored-energy mechanism supervision. Breaker control, mechanism, position contacts, racking interlocks and test interfaces. The application text and educational graphic are independently authored; the publisher does not certify this representation."}],"related":["circuit-breaker","motor","mechanism-pressure-lockout-interface"],"artwork":"pi26-mechanism-pump-run-timeout","publishedOn":"2026-11-03","updatedOn":"2026-11-03","provenance":"independent-public-research","representation":{"type":"functional-block","focus":"switchgear","family":"mechanism","input":"Pump run feedback","output":"Pump timeout alarm"},"plainEnglish":{"title":"What this block does","introduction":"Detects an unusually sustained pressure-maintaining pump operation in the selected mechanism.","example":"In a switchgear panel, a charging motor replenishes the mechanism after an operation. Supervisory contacts let the controller report an incomplete charge or repeated charging demand before an operator requests another operation. For this reference, the drawing identifies “Pump run feedback” at the input and “Pump timeout alarm” at the output. Normal duty and ambient conditions affect interpretation.","drawings":"Start at the named input: Pump run feedback. Identify its source device or document and the state represented on the drawing. Follow the named output: Pump timeout alarm. Cross-reference its destination and separate the command from confirmation that the equipment responded.","terms":[{"name":"Input","meaning":"Pump run feedback"},{"name":"Output","meaning":"Pump timeout alarm"},{"name":"Application reference","meaning":"An explanation of a named drawing function or circuit relationship; the project documents define the equipment and its connections."}],"diagram":"flow","steps":["Pump run feedback","MPT","Pump timeout alarm"],"caption":"A reading guide. The entry's original illustration and input/output facts describe this application.","sources":[{"label":"Masterclad medium-voltage switchgear: circuit-breaker section interlocks","url":"https://productinfo.se.com/masterclad_mv_switchgear_ib/6055-30-masterclad-15kv-mv-switchgear-ib/English/6055-30%20Masterclad%20MV%20Switchgear%20Indoor%20%28bookmap%29_DD00646805.xml/%24/Section6-CircuitBreakerSectionInter-58DD6EC7"}],"profileId":"power-installation-mechanism"},"url":"https://eloragrid.ai/symbols/mechanism-pump-run-timeout","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/mechanism-pump-run-timeout.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"pi26-masterclad","publisher":"Schneider Electric","title":"Masterclad medium-voltage switchgear: circuit-breaker section interlocks","url":"https://productinfo.se.com/masterclad_mv_switchgear_ib/6055-30-masterclad-15kv-mv-switchgear-ib/English/6055-30%20Masterclad%20MV%20Switchgear%20Indoor%20%28bookmap%29_DD00646805.xml/%24/Section6-CircuitBreakerSectionInter-58DD6EC7","scope":"Breaker control, mechanism, position contacts, racking interlocks and test interfaces.","type":"manufacturer","checkedOn":"2026-11-03","reuse":"link-only","relevance":"Public technical context for stored-energy mechanism supervision. Breaker control, mechanism, position contacts, racking interlocks and test interfaces. The application text and educational graphic are independently authored; the publisher does not certify this representation."}]}