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点击图片查看示意图 |
The Joslyn Load Sectionalizing Interrupter (LSI) converts isolating switches to provide interrupting capability for sectionalizing transmission loops, loop splitting and line charging current interruption. The LSI minimizes the possibility of a switching error as sequential switching of a loop system is eliminated, thereby improving personal safety and increasing system flexibility. The unique design automatically determines the required function and inserts the proper interrupter into the power circuit. LSIs can be applied to disconnect switches rated 69kV through 161kV. They can be supplied, mounted, and preadjusted on Joslyn isolating switches to provide a complete interrupter switch. Conversion of an existing air switch is easily achieved since no special tools or training is required. |
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Maintenance-Free | |
| Long life of 5,000 operations. | ||
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Ease of Installation | |
| Three phase sets can be installed quickly and easily in approximately 4 hours. | ||
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Rugged Construction | |
| Anodized aluminum mechanism housing protects against corrosive action and sealed vacuum interrupter chamber is sealed against moisture, ultraviolet activity, and contamination. | ||
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Proven Performance | |
| Installations of more than 35 years demonstrate the reliability and proven performance of the interrupter. | ||
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Air Switch Ratings Unaffected | |
| The continuous, momentary, and impulse ratings of the switch are unaffected since the LSI is in the power circuit for a few seconds. | ||
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| Loop Switching/Parallel Switching | ||
| System
Voltage (kV) |
Interrupting
Current
(Amperes) |
Maximum
Peak
Recovery Voltage (kV) |
| 69-230 |
2000
|
30
|
| Line Dropping and Cable Switching Ratings | ||
|
System
Voltage
(kV) |
Approximate
Line Length
(Miles) |
Current
( Amperes) |
|
69
|
70
|
15*/20
|
|
115
|
50
|
20
|
|
138
|
30
|
15
|
|
161
|
20
|
10
|
| * with Voltage Limiter Attachment |
| Transformer Magnetizing Switching Ratings | |
| System
Voltage (kV) |
Transformer
Size (MVA) |
| 69 | 70 |
| 115 | 110 |
| 138 | 150 |
| 161 | 200 |
| 230 | 300 |
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订购信息 | |
| 1 | Specify air switch manufacturer | |
| 2 | Supply switch model number | |
| 3 | Specify voltage and current rating | |
| 4 | Indicate size of insulator bolt circle | |
| 5 | Describe blade movement including rotation as viewed from hinge end | |
| 6 | Specify application, system voltage and grounding | |
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电话:(86 21) 6432 9508(总机) 直线:(86 21) 6432 9506 传真:(86 21) 6432 9507 邮件: jane.chen@tnb.com |
