Switches combine rotary puffer style load break switching with resettable, electronically controlled, vacuum interrupter overcurrent protection in a deadfront, submersible device. All operating apparatus and cable entrances are front accessible permitting installation in confined areas.
Load break switch (RP) ratings
Maximum design voltage
15.5 kV
27 kV
Voltage class
15 kV
25 kV
Impulse level (BIL)
110 kV
125 kV
One minute withstand
35 AC kV
60 AC kV
One minute withstand, production test rating
34 AC kV
40 AC kV
15 minute withstand
53 DC kV
78 DC kV
Continuous and load break current
630 Amps
Momentary current
25.6 kA asym
20 kA asym
Fault close current, (3 times)
One second current
16 kA asym
12.5 kA asym
Operations load interrupting endurance (15kV) at 600A
500
350
Mechanical endurance, operations
2000
Fault Interrupter (FI) ratings
50 AC kV
One minute withstand, Production test rating
Symmetrical interrupting rating
12.5 kA
IEEE C37.60 Fault Interrupting Duty Total number of fault interruptions: 116
Percent of Maximum Interrupting Rating
Approx. Interrupting Current, Amps
No. of Fault Interruptions
15 – 20%
2,000
44
45 – 55%
6,000
56
90 – 100%
12,500
16
