nbs Citadel 2.0 Series, Installation, Operation And Maintenance Manual

Page: 11 / 158

Citadel 2.0 - Instruction Manual - page: 11
IM
-
C
2.0
-
12
/2
5
/3
0/
4
0/
DO
/F
X
| V
: 1
0 / 1
1 / 2
0
21
CIRCUIT
BREAKER
TYPE
MAXIMUM
DESIGN
VOLTAGE
(V)
1
VOLTAGE
RANGE
FACTOR
(K)
2
WITHSTAND VOLTAGE
LEVELS
CONTINUOUS
CURRENT
SHORT-
CIRCUIT
(I)
3,4
INTERRUPTING
TIME 5
kV RMS POWER
FREQUENCY
kV RMS
LIGHTNING
IMPULSE
(BIL)
kV CREST
A RMS kA RMS SYM ms / CYCLES
50-CTDL-31.5 4.76 1.0 19 60
1,200, 2,000,
3,000
31.5 83/5
50-CTDL-40.0 4.76 1.0 19 60
1,200, 2,000,
3,000
40 83/5
50-CTDL-50.0 4.76 1.0 19 60
1,200, 2,000,
3,000
50 83/5
50-CTDL-63.0 4.76 1.0 19 60
1,200, 2,000,
3,000, 4000
63 83/5
75-CTDL-40.0 8.25 1.0 36 95
1,200, 2,000,
3,000
40 83/5
150-CTDL-20.0 15.0 1.0 36 95 1,200, 2,000 20 83/5
150-CTDL-31.5 15.0 1.0 36 95
1,200, 2,000,
3,000
31.5 83/5
150-CTDL-40.0 15.0 1.0 36 95
1,200, 2,000,
3,000
40 83/5
150-CTDL-50.0 15.0 1.0 36 95
1,200, 2,000,
3,000
50 83/5
150-CTDL-63.0 15.0 1.0 36 95
1,200, 2,000,
3,000, 4,000
63 83/5
63KA TO 4000A + 5000A SELF COOLED - CONSULT FACTORY
•
ANSI/IEEE C37.04-1999
Standard Rating Structure for AC High-Voltage
Circuit Breakers
•
ANSI/IEEE C37.06-2009 AC
High-Voltage Circuit Breakers Rated on a
Symmetrical Current Basis - Preferred Ratings
and Related Required Capabilities for Voltages
Above 1,000 Volts
•
ANSI/IEEE C37.09-1999
Standard Test Procedure for AC High-Voltage Circuit
Breakers Rated on a Symmetrical Current Basis
•
ANSI/IEEE C37.010-1999
Application Guide for AC High-Voltage Circuit
Breakers Rated on a Symmetrical Current Basis.
Footnotes:
1. Maximum design voltage for which the circuit breaker is
designed and the upper limit for operation.
2.
K is listed for information purposes only. For circuit
breakers rated on a “constant kA” ratings basis, the
voltage range factor is 1.0.
3.
All values apply to polyphase and line-to-line faults.
4.
Standard duty cycle is O - 0.3 s - CO - 3 min. - CO.
5.
Standard rating interrupting time is five-cycles (83 ms).
Optional rated interrupting time of three-cycles (50 ms)
is available (except with 24 Vdc tripping).
TABLE: 1
R A T I N G S T A B L E & W E I G H T S