Medium Voltage ESCO Style Switches - Powell Industries, Inc.
Medium Voltage ESCO Style Switches - Powell Industries, Inc.
Medium Voltage ESCO Style Switches - Powell Industries, Inc.
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Maximum<br />
<strong>Voltage</strong><br />
(kV)<br />
Frequency<br />
(Hz)<br />
Basic<br />
Impulse<br />
Level<br />
(kV)<br />
<strong>Powell</strong> Electrical Systems, <strong>Inc</strong>.<br />
8967 Pleasantwood Avenue NW<br />
North Canton, OH • 44720<br />
One<br />
Minute<br />
AC<br />
Withstand<br />
(kV)<br />
Fifteen<br />
Minute<br />
DC<br />
Withstand<br />
(kV)<br />
Loadbreak Oil Switch Electrical Ratings<br />
Corona<br />
Extinction<br />
(kV)<br />
Open<br />
Gap<br />
BIL<br />
Flashover<br />
Withstand<br />
(kV)<br />
Load<br />
Interrupting<br />
and<br />
Loop<br />
Switching<br />
Current<br />
(A)<br />
Transformer<br />
Magnetizing<br />
Interrupting<br />
Current<br />
(A)<br />
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©2007 <strong>Powell</strong> <strong>Industries</strong>, <strong>Inc</strong>. • All rights reserved.<br />
Capacitor<br />
or<br />
Cable<br />
Charging<br />
Interrupting<br />
Current<br />
(A)<br />
Asymmetrical<br />
Momentary<br />
and<br />
3 Operation<br />
Fault<br />
Close<br />
Current<br />
(kA)<br />
Optional<br />
Asymmetrical<br />
Momentary<br />
and<br />
3 Operation<br />
Fault<br />
Close<br />
Current<br />
(kA)<br />
Symmetrical<br />
One<br />
Second<br />
Current<br />
Rating<br />
(kA)<br />
15.5 50/60 95/110 35 53 11 200 600 25 40 40 64 25 600<br />
27 50/60 125 60 78 19 200 600 25 40 40 40 25 600<br />
38 50/60 150 70 103 26 200 600 25 40 40 40 25 600<br />
Maximum<br />
<strong>Voltage</strong><br />
(kV)<br />
Frequency<br />
(Hz)<br />
Basic<br />
Impulse<br />
Level<br />
(kV)<br />
One<br />
Minute<br />
AC<br />
Withstand<br />
(kV)<br />
Fifteen<br />
Minute<br />
DC<br />
Withstand<br />
(kV)<br />
Loadbreak SF 6 Gas Switch Electrical Ratings3<br />
Corona<br />
Extinction<br />
(kV)<br />
Open<br />
Gap<br />
BIL<br />
Flashover<br />
Withstand<br />
(kV)<br />
Load<br />
Interrupting<br />
and<br />
Loop<br />
Switching<br />
Current<br />
(A)<br />
Transformer<br />
Magnetizing<br />
Interrupting<br />
Current<br />
(A)<br />
Capacitor<br />
or<br />
Cable<br />
Charging<br />
Interrupting<br />
Current<br />
(A)<br />
Asymmetrical<br />
Momentary<br />
and<br />
3 Operation<br />
Fault<br />
Close<br />
Current<br />
(kA)<br />
Symmetrical<br />
10 Cycle<br />
Phase to<br />
Phase<br />
Simulated<br />
Internal Fault<br />
Withstand<br />
Current<br />
(kA)<br />
Symmetrical<br />
One<br />
Second<br />
Current<br />
Rating<br />
(kA)<br />
15.5 50/60 95/110 35 53 11 200 600 25 40 40 25 25 600<br />
27 50/60 125 60 78 19 200 600 25 40 40 25 25 600<br />
38 50/60 150 70 103 26 200 600 25 40 40 25 25 600<br />
Maximum<br />
<strong>Voltage</strong><br />
(kV)<br />
Maximum<br />
<strong>Voltage</strong><br />
(kV)<br />
5<br />
15<br />
27<br />
38<br />
Ambient<br />
Temperature<br />
Range<br />
(ºF)<br />
Mechanical<br />
Life<br />
(Operations)<br />
Loadbreak Switch Mechanical Ratings<br />
Oil Type SF 6 Type<br />
Corrosion<br />
Resistance per<br />
ASTM B-117<br />
(Hours)<br />
Maximum<br />
Leak<br />
Rate<br />
(cc/Second)<br />
Ambient<br />
Temperature<br />
Range<br />
(ºF)<br />
Mechanical<br />
Life<br />
(Operations)<br />
Corrosion<br />
Resistance per<br />
ASTM B-117<br />
(Hours)<br />
Maximum<br />
Leak<br />
Rate<br />
(cc/Second)<br />
Normal<br />
Gas Pressure<br />
@ 68 ºF<br />
(PSIG)<br />
15.5 -40 to +120 2000 2000 10 -5 -40 to +120 2000 2000 10 -6 6 15<br />
27 -40 to +120 2000 2000 10 -5 -40 to +120 2000 2000 10 -6 6 15<br />
38 -40 to +120 2000 2000 10 -5 -40 to +120 2000 2000 10 -6 6 15<br />
Maximum<br />
<strong>Voltage</strong><br />
(kV)<br />
Frequency<br />
(Hz)<br />
Speed Changer Switch Electrical and Mechanical Ratings<br />
Basic<br />
Impulse<br />
Level<br />
(kV)<br />
7.5 50/60 95/110<br />
15 50/60 95/110<br />
Transfer<br />
Type<br />
Interruption<br />
<strong>Medium</strong><br />
Continuous<br />
Current<br />
Rating<br />
(A)<br />
Asymmetrical<br />
Momentary Current<br />
Rating<br />
(kA)<br />
600 40/80<br />
1200 40/80<br />
600 40/80<br />
1200 40/80<br />
Ambient<br />
Temperature<br />
Range<br />
(ºF)<br />
Transfer Switch Electrical and Mechanical Ratings<br />
Insulation<br />
<strong>Medium</strong><br />
Frequency<br />
(Hz)<br />
Basic<br />
Impulse<br />
Level<br />
(kV)<br />
Continuous<br />
Current<br />
Rating<br />
(A)<br />
Mechanical<br />
Life<br />
(Operations)<br />
Corrosion<br />
Resistance per<br />
ASTM B-117<br />
(Hours)<br />
Continuous<br />
Current<br />
Rating<br />
(A)<br />
Continuous<br />
Current<br />
Rating<br />
(A)<br />
Maximum<br />
Design<br />
Gas<br />
Pressure<br />
(PSIG)<br />
Maximum<br />
Leak<br />
Rate<br />
(cc/Second)<br />
-40 to +120 2000 2000 10 -5<br />
-40 to +120 2000 2000 10 -5<br />
Loadbreak<br />
Current<br />
Rating<br />
(A)<br />
Asymmetrical<br />
Momentary<br />
Close and Latch<br />
Rating<br />
(kA)<br />
Transfer Time Maximum<br />
Leak<br />
Rate<br />
(cc/Second)<br />
Automatic/Manual SF 6 SF 6 50/60 75 600 600 40 12-15 Sec/ 8-10 Cycles 10 -6<br />
Automatic Oil Oil 50/60 75 600 600 40 12-15 Sec/ 8-10 Cycles 10 -5<br />
Automatic Vacuum SF 6 50/60 95/110 600 600 12 12-15 Sec/ 8-10 Cycles* 10 -6<br />
Automatic/Manual SF 6 SF 6 50/60 95/110 600 600 40 12-15 Sec/ 8-10 Cycles 10 -6<br />
Automatic Oil Oil 50/60 95/110 600 600 40/64 12-15 Sec/ 8-10 Cycles 10 -5<br />
Automatic Vacuum SF 6 50/60 125 600 600 12 12-15 Sec/ 8-10 Cycles* 10 -6<br />
Automatic/Manual SF 6 SF 6 50/60 125 600 600 40 12-15 Sec/ 8-10 Cycles 10 -6<br />
Automatic Oil Oil 50/60 125 600 600 40 12-15 Sec/ 8-10 Cycles 10 -5<br />
Automatic Vacuum SF 6 50/60 150 1250 600 31.5 12-15 Sec/ 8-10 Cycles 10 -6<br />
Automatic/Manual SF 6 SF 6 50/60 150 600 600 40 12-15 Sec/ 8-10 Cycles 10 -6<br />
Automatic Oil Oil 50/60 150 600 600 40 12-15 Sec/ 8-10 Cycles 10 -5<br />
* - Optional 25mSec transfer time available, please consult factory.<br />
Publication No. 09016<br />
08/2007 Rev 1<br />
Tel: 330.966.1750 • Fax: 330.966.1787<br />
www.powellind.com<br />
info@powellind.com
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