CADXChange

ResourcesPower system single-line symbols (IEC 60617)

Relay, line differential (87L) symbol (DWG block)

Relay, line differential (87L) is a ready-to-use AutoCAD block named PWR_R_87L in the Power system single-line symbols (IEC 60617), group “Protection relays”. It carries 10 attributes, 2 of them visible, so it works in equipment lists and BlockSync exports.

Relay, line differential (87L) symbol, block PWR_R_87L
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Block details

Block namePWR_R_87L
LibraryPower system single-line symbols (IEC 60617)
GroupProtection relays
StandardIEC 60617
Attributes10 attributes, 2 visible

Attributes

Visible on the drawing: TAG, FUNCTION.

Hidden, they carry the data for schedules: SETTING, TRIPS, CT_INPUT, VT_INPUT, MANUFACTURER, MODEL, REMARKS, DESC.

Export the attributes of every copy in a drawing to Excel with BlockSync, check them and write the corrections back in one run.

How to use it

  1. Download the ZIP and unzip it. It holds one DWG with the block PWR_R_87L.
  2. Open the DWG and copy the block into your drawing, or insert it from the DWG with INSERT.
  3. Double-click a copy to fill in the tag and the other attributes.

The symbol is our own drawing after the common form of IEC 60617, not a certified copy. The library page explains how the symbols relate to the standard.

Names in other languages

The same symbol under its name in the other site languages.

English
Relay, line differential (87L)
Simplified Chinese
线路差动继电器（87L）
Traditional Chinese
電驛，線路差動(87L)
Japanese
線路差動継電器(87L)
Korean
계전기, 선로 차동(87L)
German
Relais, Leitungsdifferential (87L)
French
Relais différentiel de ligne (87L)
Italian
Relè differenziale di linea (87L)
Spanish
Relé diferencial de línea (87L)

More symbols in the group “Protection relays”