Cutler-Hammer W-VAC Instrukcje instalacji, obsługi i konserwacji - Strona 7

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CUTLER-HAMMER 24kV Type W-VAC Circuit Breaker
1-3
24kV TYPE W-VAC VACUUM CIRCUIT BREAKER RATINGS (TABLE 1.1)
!
WARNING
THE CIRCUIT BREAKERS DESCRIBED IN THIS BOOK
ARE DESIGNED AND TESTED TO OPERATE WITHIN
THEIR NAMEPLATE RATINGS. OPERATION OUTSIDE
OF THESE RATINGS MAY CAUSE THE EQUIPMENT TO
FAIL, RESULTING IN DEATH, BODILY INJURY AND
PROPERTY DAMAGE.
Table 1.1 Type W-VAC Vacuum Circuit Breaker Rated in Accordance with IEC Standard 56 (1)
Identification
Circuit
Voltage
Breaker
Type
kV rms
240W-VAC16
240W-VAC20
240W-VAC25
(1) Tested and certified by CESI to IEC Standard 56(rated operating sequence 0 - .3 sec – CO – 15 sec – CO).
Typical operating time values: opening 45 ms, closing 75 ms, and reclosing 190ms.
Effective 12/98
Rated
Values
Insulation Level
Class
Power
Frequency
Withstand
kV rms
24
50
24
50
24
50
ALL SAFETY CODES, SAFETY STANDARDS
AND/OR REGULATIONS AS THEY MAY BE
APPLIED TO THIS TYPE OF EQUIPMENT MUST
BE STRICTLY ADHERED TO.
Normal
Short
Impulse
Current
Circuit
Breaking
Current
kV Peak
Amperes
kA rms
125
630
1250
1600
2000
125
630
1250
1600
2000
125
630
1250
1600
2000
Page 2 of 47
I.B. 8801C71H01
3 Second
Short
Short Time
Circuit
Current
Making
Current
kA rms
kA Peak
16
16
40
20
20
50
25
25
63
Cable
Charging
Breaking
Amps
Amperes
31.5
31.5
31.5