K
Maximum-voltage measuring relay
Measuring relay that operates when the monitored voltage rises above its set level.
Schematic / SLD
IEEE / ANSI · K
ANSI/IEEE Maximum-voltage measuring relay form
IEEE-library form of maximum-voltage measuring relay: measuring relay that operates when the monitored voltage rises above its set level.
In plain English
What does ANSI/IEEE Maximum-voltage measuring relay form mean?
This reference locates maximum-voltage measuring relay in Autodesk's IEEE-oriented voltage protection relays family. The maximum-voltage relay form operates when voltage exceeds its setting. Typical uses include generator overvoltage after load rejection, capacitor bank protection and inverter connection points, where sustained high voltage can stress insulation or breach grid connection limits. The public library uses HCR1F36 for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.
A simple example
Trace the measured quantity or initiating control signal separately from the output contacts. The device tag links the sensing or operating element to the controlled circuit; settings, reset behaviour and the actual terminal arrangement belong in the selected equipment documentation.
What the drawings help you do
The box shows a greater-than voltage threshold but not whether the element uses phase-to-phase or phase-to-neutral quantities, the reset ratio or the time delay. Grid-connection settings are usually specified as several stages with different delays, which this single symbol does not reveal. Identify the voltage connection used by the element. A maximum-voltage relay responds to high voltage magnitude; a residual voltage relay responds to neutral displacement. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted.
This particular reference
IEEE-library form of maximum-voltage measuring relay: measuring relay that operates when the monitored voltage rises above its set level. A maximum-voltage relay responds to high voltage magnitude; a residual voltage relay responds to neutral displacement.
- Normally open / normally closed
- The contact state in the normal condition defined for the drawing.
- Coil
- A wound conductor that can produce a magnetic field when energised.
- Phase
- One of the related AC waveforms in a power system.
Read the source: Autodesk IEEE Symbol Preview: Voltage Protection Relays · IEC graphical symbols for diagrams
IEEE / ANSI · Maximum Voltage Protection
Autodesk IEEE Symbol Preview: Voltage Protection Relays, block HCR1F36. Matching functional counterpart linked separately. Independently drawn educational geometry; not a certified IEEE glyph or database identifier.
Shown as an independently authored educational illustration. Use the cited publication and drawing legend to verify the required drafting form.
Schematic / SLD · K
What it represents
This reference locates maximum-voltage measuring relay in Autodesk's IEEE-oriented voltage protection relays family. The maximum-voltage relay form operates when voltage exceeds its setting. Typical uses include generator overvoltage after load rejection, capacitor bank protection and inverter connection points, where sustained high voltage can stress insulation or breach grid connection limits. The public library uses HCR1F36 for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.
Trace the measured quantity or initiating control signal separately from the output contacts. The device tag links the sensing or operating element to the controlled circuit; settings, reset behaviour and the actual terminal arrangement belong in the selected equipment documentation.
The box shows a greater-than voltage threshold but not whether the element uses phase-to-phase or phase-to-neutral quantities, the reset ratio or the time delay. Grid-connection settings are usually specified as several stages with different delays, which this single symbol does not reveal. Identify the voltage connection used by the element. A maximum-voltage relay responds to high voltage magnitude; a residual voltage relay responds to neutral displacement. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted.
How to read it
- Identify the voltage connection used by the element.
- Check for multiple stages in the settings record.
Information to show or reference
- State threshold and delay
- Show VT connection
- Reference stage settings
A distinction that matters
A maximum-voltage relay responds to high voltage magnitude; a residual voltage relay responds to neutral displacement.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
Autodesk IEEE Symbol Preview: Voltage Protection Relays
Public IEEE-oriented Voltage Protection Relays table explicitly lists HCR1F36 as Maximum Voltage Protection. This supports the vendor convention context, not reproduction of the publisher graphic.
IEC graphical symbols for diagrams
IEC context for graphical symbols used in diagrams; no IEC graphic is reproduced.
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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