GE B90 Instruction Manual page 131

CHAPTER 4: INTERFACES FRONT PANEL INTERFACE
Figure 4-30: IEEE and IEC static symbols
4
Breaker and disconnect components
Breaker components and disconnect components are interfaces to the UR breaker control elements and disconnect
switch elements. On a UR device they show dynamically the breaker or disconnect status as calculated by the element,
and provide means to open, close, tag, bypass interlocking, and substitute (force status of) the element. Breaker
components in addition provide means to enable/disable breaker autoreclose.
Each breaker and each disconnect can be configured to use the UR-style symbols, IEC symbols, or simple square/slash
symbols as shown in the following figure. The symbols assume horizontal symbol orientation, red - closed color, and green
- open scheme. With vertical orientation, they are rotated 90 degrees.
B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-25