GE Industrial Solutions Entellisys Installation - Manual (Page 22)

16
Entellisys Low Voltage Switchgear
Chapter 3. Description
Movement of the breaker between the CONNECTED, TEST,
and DISCONNECTED positions is performed by the use of a
racking crank that engages the racking mechanism mounted
on the breaker. Movement to the WITHDRAWN position is
manually performed after opening the compartment door.
These positions are illustrated and described more fully in
Chapter 5 of this instruction book.
CAUTION: The door should not be opened when the circuit
breaker is closed and in the CONNECTED position.
Although the breaker compartment door may be opened in
any position, it is recommended that the door only be
opened when the breaker is in the DISCONNECTED or
WITHDRAWN position.
ATTENTION: Il ne faut pas que la porte soit ouverte
lorsque le disjoncteur est fermé et branché. Bien que la
porte du compartiment du disjoncteur puisse être ouverte
lorsque le disjoncteur est en n’importe quelle position, il
est préférable que la porte ne soit ouverte que lorsque le
disjoncteur est en position débranchée ou retirée.
3-6 Circuit Breakers
The General Electric EntelliGuard  Low Voltage Power
Circuit Breaker includes spring-operated, stored energy, close
and trip mechanisms for either manual or electrical
operation.
Six General Electric EntelliGuard
 Circuit Breakers form
the complete family of breakers used in the Entellisys
switchgear. These circuit breakers range from 800 to 5000
ampere frame sizes and are built with the following ratings
and characteristics:
EGS/EGH/EGX-08 Circuit Breaker
• 800-ampere frame size
• Standard 30,000-ampere interrupting and short-time
capability (480 volts)
• Four-high stacking, 22-inch wide sections
• Increased IC and short-time rating 42,000 amperes
(EGH-08) or 65,000 amperes (EGX-08) at 480 volts
EGF-08 Fused Circuit Breaker
• 800-ampere frame size
• 300- through 1600-ampere integral fusing
• 200,000-ampere interrupting rating
• Four-high stacking, 22-inch wide sections
EGS/EGH-16 Circuit Breaker
• 1600-ampere frame size
• Standard 50,000-ampere interrupting and short-time
capability at 480 volts
• Four-high stacking, 22-inch wide sections
• Increased IC and short time rating 65,000-ampere at 480
volts (EGH-16)
Fig. 3-10. EGX-08 circuit breaker (electrically operated)
EGF-16 Fused Circuit Breaker
• 1600-ampere frame size
• 450- through 2500-ampere integral fusing
• 200,000-ampere interrupting rating
• Four-high stacking, 22-inch wide sections
EGS/EGF-20 Circuit Breaker
• 2000-ampere frame size
• Standard 65,000-ampere interrupting and short-time
capability at 480 volts
• 200,000-ampere interrupting rating
• Three-high stacking, 22-inch wide sections (See DET-
447)