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The VBU switching system is ideal for capacitor switching and is suitable for all loads. The VBU utilizes a modular design concept which connects vacuum interrupter modules electrically in series and mechanically in parallel. The flexibility of modular design makes changing the voltage rating as simple as adding or subtracting vacuum contact modules. The VBU switching system is completely sealed against the environment. They are immune to ice and to the effects of contamination. No heaters are required. The VBU is designed to withstand system voltage continuously in the open position. The VBU switch
system contains vacuum interrupters that are surrounded by Joslyte™,
the 35-year field proven solid dielectric insulation. VBU switches offer
high reliability for applications of system voltages from 69 to 230kV
with continuous current capability from 600 amperes. |
Click on photo for graphical representation |
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Maintenance-Free Long Life |
| Inspection only every 5 years or 10,000 operations. | |
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Completely Sealed Construction |
| Environmental protection system eliminates effects of ice and contamination. | |
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Easy Installation |
| Lightweight construction of units allow the factory assembled unit to be installed easily. | |
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Safe, Oil-Free |
| VBU switches are free of explosive and combustible materials and are safe even when exposed to fault currents that exceed the equipment rating. | |
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Low Cost |
| VBU switches are less expensive than circuit breakers to purchase and install and are essentially maintenance-free. | |
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| Rated Maximum Voltage kV | L-G BIL kV | Interrupter
Modules per Phase |
A | B | Wt. per Phase Lbs. |
Primary Application* |
| 72 | 350 | 4 | 8' 7 1/4" | 30" | 710 | T G U |
| 121 | 550 | 5 | 11' 1 1/4" | 48" | 860 | T G |
| 121 | 550 | 7 | 13' 1 1/4" | 48" | 940 | U |
| 145 | 750 | 6 | 13' 1 1/4" | 60" | 950 | T |
| 145 | 750 | 7 | 14' 1 1/4" | 60" | 990 | G |
| 145 | 750 | 8 | 15' 1 1/4" | 60" | 1030 | U |
| 169 | 750 | 7 | 14' 1 1/4" | 60" | 990 | T |
| 169 | 750 | 8 | 15' 1 1/4" | 60" | 1030 | G |
| 169 | 750 | 9 | 16' 1 1/4" | 60" | 1070 | U |
| 242 | 900 | 9 | 17' 7 1/4" | 78" | 1180 | T G |
| *T -
Transformer Switching & Fault Protection - Grounded or Ungrounded G - Shunt Capacitor or Reactor Switching - Solidly Grounded Source & Load U - Shunt Capacitor or Reactor Switching - Ungrounded Source & Load |
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Ordering Information | ||
| 1 | Select
intended application: Capacitor switching, reactor switching, or filter bank switching |
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| 2 | Specify Voltage Rating: 69 kV, 121 kV, 145 kV, 242 kV | ||
| 3 | Specify 120 V AC, 48 V DC, 125 V DC, or 250 V DC Control Voltage | ||
| 4 | Select Options and Accessories | ||
| Options and Accessories | ||||
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Zero Voltage Closing Control | |
Junction Box | |
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Capacitor Controls | |
Time Delay Relay | |
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Undervoltage Trip Control | |
Heater for Control Enclosures | |
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Low Energy Solenoid Control | |
Electrical Operations Counter | |
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Current Limiting Reactors | |
Upright Stands and Pole Mounting Frames | |
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Overcurrent Relay Packages | |
Special Controls | |
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Home | About Us | Products | Library | Contact Us Joslyn Hi-Voltage - 4000 E 116th Street, Cleveland, Ohio 44105 USA Email: jhv_info@tnb.comCopyright © 2001 Joslyn Hi-Voltage. All rights reserved. |
