with Arc Chute type interrupter
15 kv, 15/27 kV, 20/34.5 kV
Application
The Type C Loadbreak Cutout is available for application on 15, 25 and 35 kV distribution systems. The addition of the arc chute expands the flexibility of the Chance protective devices family by providing loadbreak capability for cutouts and disconnect solid blade units. The loadbreak cutout provides short circuit protection to utility lines with the added feature of a loadbreaking function.
The loadbreak cutout is applicable for transformer and capacitor bank switching or line sectionalizing. Loadbreak cutouts provide protection from overloads that just melt the fuselink through the maximum interrupt capacity of the fuseholder. They also provide loadbreak capability through 300 amperes.
Design
All design features and most components of the loadbreak unit are identical to those incorporated in the Type C standard cutout. The loadbreak portion of the Type C Loadbreak cutout is a heavy duty, reliable load interrupter that provides a positive visible loadbreak. A common loadbreak mounting assembly will accept the Chance Type C 100 amp and 200 amp loadbreak fuseholders or a 300 amp loadbreak disconnect blade.
Ratings/Specifications
The 15kV Type C loadbreak cutout has a maximum design voltage rating of 15kV. There are no voltage restrictions on applicaton to grounded wye, ungrounded wye, or delta systems having maximum operating voltages (line to line) equal to or less than the cutout maximum design voltage rating.
The 15/27 and 20/34.5 kV Type C loadbreak cutouts have maximum design slant voltage ratings. These cutouts are to be used on systems which have phase-to-ground voltages no greater than the value listed to the left of the slant (/) and which have phase-to-phase voltages no greater than the value listed to the right of the slant.
Fuseholders and mounting assemblies from other manufacturers' loadbreak cutouts are not interchangeable with Chance loadbreak cutouts. Likewise, Chance fuseholders and mountings are not interchangeable with other manufacturers' loadbreak cutouts.
Operation
The self-contained loadbreak device enables the lineman to interrupt load current by means of a simple hookstick operation. To break the current, the lineman inserts a hookstick into the operating ring and rapidly opens the device. Upon opening, a spring-loaded stainless steel blade mechanism snaps out through a gray arc chute and elongates, cools and extinguishes the confined arc. The loadbreaking operation is independent of the operating speed of the lineman. The fuse remains undamaged. No special or portable tools are required to operate the unit. In the open position, the fuseholder or blade hangs in an approximate vertical position for the visible-break.
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|
|
| kV LIW (BIL) |
A |
B |
C |
D |
E |
| 110 |
25-1/4" 642 mm |
6-7/8" 175 mm |
10-3/4" 273 mm |
3-1/2" 89 mm |
25-5/8" 651 mm |
| 125 |
28-1/4" 719 mm |
8-5/8" 219 mm |
12-1/2" 318 mm |
3-1/8" 79 mm |
30-7/8" 784 mm |
| 150 |
2 81/4" 719 mm |
8 5/8" 219 mm |
12 1/2" 318 mm |
3 1/8" 79 mm |
30 7/8" 784 mm |
Cowin Electrical Co., Ltd, is located in the largest manufacturing base of low-voltage electric equipment of Liushi China, which is called "the Electric Device Metropolis of China".
Cowin Electrical Co., Ltd is a leading company in the electrical indutry, import and export trade.
Cowin regards quality of products as life. We have standard Management System. We produce and widely sell over 300 series, more than 10000 types in high-and-low voltage electrical device, complete equipment, power transformer, cable and wire, instrument and meter, welding equipment, which are praised by all users. A number of new independent intellectual property right, intelligent appliances is moving into the market.
We are keeping our business principles for "Approaching the first-class management, producing the first-class products, providing the first-class service". All Cowin staffs are working hard and constantly innovate. Honest Cowin are welcome to all users to fighting a better tomorrow hand in hand.
We main produce HV Dropout Fuse, Lightning Arrestor, Isolate Switch, Poleline Hareware,solar photovoltaic fittings,etc. Welcome to contact us for business.
DONNE JIANG
Cowin Electrical Co., Ltd
Audited Supplier 
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