# Breaker operating-time trend interface Canonical URL: https://eloragrid.ai/symbols/breaker-operating-time-trend-interface Publisher: Elora Grid Updated: 2026-11-03 Lookup label: BOTI Drawing use: Schematic Reference families: Manufacturer Representation: Functional block Installation focus: switchyards Input: Command and contact timing events Output: Operating-time trend Associates the measured operating-time history with the assigned breaker mechanism. ## In plain English ### What this block does Associates the measured operating-time history with the assigned breaker mechanism. ### A simple example In a switchyard marshalling kiosk, gas compartment, operating mechanism and cabinet-service indications are collected for the station controller. Their equipment tags identify the actual compartment or mechanism being monitored. For this reference, the drawing identifies “Command and contact timing events” at the input and “Operating-time trend” at the output. A trend is not an automatic serviceability decision. ### What the drawings help you do Start at the named input: Command and contact timing events. Identify its source device or document and the state represented on the drawing. Follow the named output: Operating-time trend. Cross-reference its destination and separate the command from confirmation that the equipment responded. ### Terms - Input: Command and contact timing events - Output: Operating-time trend - Application reference: An explanation of a named drawing function or circuit relationship; the project documents define the equipment and its connections. Concept diagram: Command and contact timing events → BOTI → Operating-time trend A reading guide. The entry's original illustration and input/output facts describe this application. - [Modular switchgear monitoring](https://www.hitachienergy.com/in/en/products-and-solutions/high-voltage-switchgear-and-breakers/monitoring-and-controlled-switching/modular-switchgear-monitoring-msm) ## What it represents Associates the measured operating-time history with the assigned breaker mechanism. Yard equipment supervision carries the condition and support-system information of primary equipment into station alarms. A monitor's declared alarm, measurement and self-fault output need separate point names. In a switchyard marshalling kiosk, gas compartment, operating mechanism and cabinet-service indications are collected for the station controller. Their equipment tags identify the actual compartment or mechanism being monitored. For this reference, the drawing identifies “Command and contact timing events” at the input and “Operating-time trend” at the output. A trend is not an automatic serviceability decision. Keep primary-device identity, compartment boundaries and monitor health visible. A monitoring illustration does not establish a leak rate, operating threshold or remaining equipment life. 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. ## How to read it - Start at the named input: Command and contact timing events. Identify its source device or document and the state represented on the drawing. - Follow the named output: Operating-time trend. Cross-reference its destination and separate the command from confirmation that the equipment responded. - A trend is not an automatic serviceability decision. - Keep primary-device identity, compartment boundaries and monitor health visible. A monitoring illustration does not establish a leak rate, operating threshold or remaining equipment life. ## Information to show or reference - Label the source and connection reference for command and contact timing events. - Identify the destination and defined state of operating-time trend. - Record the equipment or control-document revision supporting this functional block. - Check this application limit in the project design: A trend is not an automatic serviceability decision. ## Important distinction A trend is not an automatic serviceability decision. 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 - Representation: Functional block - Installation focus: Switchyards - Input / boundary: Command and contact timing events - Output / connection: Operating-time trend - Lookup label: BOTI is a library lookup label, not a standard device designation. ## Public references - [Modular switchgear monitoring](https://www.hitachienergy.com/in/en/products-and-solutions/high-voltage-switchgear-and-breakers/monitoring-and-controlled-switching/modular-switchgear-monitoring-msm) — Hitachi Energy. Public technical context for switchyard equipment condition interfaces. Gas, operating mechanism and circuit-breaker condition monitoring. The application text and educational graphic are independently authored; the publisher does not certify this representation. ## Graphic scope Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.