HSW1S93
Two-network voltage measurement selector
This representation distinguishes voltage selection between two three-phase networks.
IEC
IEEE / ANSI · HSW1S93
ANSI/IEEE Two-network voltage measurement selector form
IEEE-library form of two-network voltage measurement selector: this representation distinguishes voltage selection between two three-phase networks.
In plain English
What does ANSI/IEEE Two-network voltage measurement selector form mean?
This reference locates two-network voltage measurement selector in Autodesk's IEEE-oriented miscellaneous switches family. This representation distinguishes voltage selection between two three-phase networks. The measurement is selected from more than one network or bus system. Both source identities must remain visible so that a reading is not attributed to the wrong supply. The public library uses HSW1S93 for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.
A simple example
Read the operating mechanism and the contact reference state together. Cross-reference every associated contact to the same device and show which movement, signal or reset changes its condition; the symbol alone does not establish the complete switching sequence.
What the drawings help you do
Tag the two measurement sources and provide a position table with each voltage pair. This selector does not create a load-supply transfer arrangement between the networks. Identify both sources and each selectable measurement connection. Measurement selection between networks is not an automatic source-transfer power switch. 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 two-network voltage measurement selector: this representation distinguishes voltage selection between two three-phase networks. Measurement selection between networks is not an automatic source-transfer power switch.
- Normally open / normally closed
- The contact state in the normal condition defined for the drawing.
- Phase
- One of the related AC waveforms in a power system.
- Terminal
- An identified point where a conductor connects.
Read the source: Autodesk IEEE Symbol Preview — Miscellaneous Switches
IEEE / ANSI · 3 Voltage, 2-Network Phase-to-Phase Switch
Autodesk IEEE Symbol Preview: Miscellaneous Switches, block HSW1S93. 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 · HSW1S93
What it represents
This reference locates two-network voltage measurement selector in Autodesk's IEEE-oriented miscellaneous switches family. This representation distinguishes voltage selection between two three-phase networks. The measurement is selected from more than one network or bus system. Both source identities must remain visible so that a reading is not attributed to the wrong supply. The public library uses HSW1S93 for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.
Read the operating mechanism and the contact reference state together. Cross-reference every associated contact to the same device and show which movement, signal or reset changes its condition; the symbol alone does not establish the complete switching sequence.
Tag the two measurement sources and provide a position table with each voltage pair. This selector does not create a load-supply transfer arrangement between the networks. Identify both sources and each selectable measurement connection. Measurement selection between networks is not an automatic source-transfer power switch. 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 both sources and each selectable measurement connection.
- Measurement selection between networks is not an automatic source-transfer power switch.
Information to show or reference
- Identify the associated device, circuit or diagram boundary.
- Identify both sources and each selectable measurement connection.
- Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form.
A distinction that matters
Measurement selection between networks is not an automatic source-transfer power switch.
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 — Miscellaneous Switches
Public IEEE-oriented Miscellaneous Switches table explicitly lists HSW1S93 as 3 Voltage, 2-Network Phase-to-Phase Switch. This supports the vendor convention context, not reproduction of the publisher graphic.
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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