BAT
Battery
An electrochemical electrical source or storage element represented in a circuit.
SLD / Schematic
Protection functions · 76
DC overcurrent relay
Supervises excessive current in a direct-current circuit.
SLD / Schematic · 76
What it represents
Supervises excessive current in a direct-current circuit.
In a drafting package, connect this reference to the DC current transducer or measurement circuit. The associated drawing should trace the DC trip or alarm output and interrupting device; the number identifies the role and does not specify the terminal arrangement, ratings or operating settings.
How to read it
- Identify the DC current transducer or measurement circuit.
- Trace the DC trip or alarm output and interrupting device.
Information to show or reference
- Label the DC current transducer or measurement circuit.
- Cross-reference the DC trip or alarm output and interrupting device.
- Identify the device tag, manual revision and logic drawing that define this implementation.
A distinction that matters
AC phase overcurrent 50/51 and DC overcurrent 76 have different measurement and interruption contexts.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
ANSI device-number and suffix reference table
Public manufacturer number/name association. Drafting explanations are independently written.
IEEE C37.2-2022: power-system device function numbers
Normative device-number publication; exact edition wording and compliance require the licensed standard.
About this graphic
This illustration was authored independently by Elora Grid to explain the concept. It is not reproduced from a customer drawing, an official standard graphic or a manufacturer CAD file. Its correspondence to an exact IEC or IEEE symbol identifier has not been certified.
SVG and DXF downloads contain this original artwork. DXF uses unscaled drawing units; a GA envelope supplies no product dimensions, clearances or fabrication information. Original artwork is available under CC BY 4.0. Third-party references retain their own terms.
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