- Contact Person : Ms. Du Jean
- Company Name : Chongqing Yueda Electric Equipment Co., Ltd.
- Tel : 86-23-86973095
- Fax : 86-23-86973092
- Address : Chongqing,Jiangbei District,5-1, 5 F, Building 5, No. 2, Gangcheng East Road, Jiangbei District, Chongqing, China
- Country/Region : China
- Zip : 400026
Outdoor drop out cut fuse /Type High-Voltage Drop-out Cutout Fuse 11kV
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Description
The dropout cut fuse can offer overcurrent protection to the equipment which is easy to damage caused by system over-voltage or fault condition. In electrical distribution, a fuse cutout or cut-out fuse is a combination of a fuse and a switch, used in primary overhead feeder lines and taps to protect distribution transformers from current surges and overloads. An overcurrent caused by a fault in the transformer or customer circuit will cause the fuse to melt, disconnecting the transformer from the line.
It can also be opened manually by utility linemen standing on the ground and using a long insulating stick called a hot stick. Besides, the drop-out fuse cutout has advantages of flexibility, excellent property, convenient installation, long-term running without fault and long service life.
Excellent current-breaking ability for fault current
8KA/12KV, 12.5KA/12KV,16KA/12KV (at most four times)
Standard
The design and experiment for NCX type drop-out fuse conforms to the standard as follows:
GB 15166.3 DL/T 640
IEC 282-2/ BS 729/ANSI-C 37.40, 37.41 & 37.42 and NEMA standard
Technical Parameter
SL No | Description | Unit | YDNCX-12/100-8 | YDNCX-12/200-12.5 |
1 | Rating work voltage | kV | 12kV | 12kV |
2 | Rating current | A | 100 | 200 |
3 | Rating frequency | Hz | 50 | 50 |
4 | Fuse base rated current | A | 100 | 200 |
5 | Rated short-circuit breaking current | kA | 8 | 12.5 |
6 | Power frequency withstand voltage (wet | kV | 30 | 36 |
7 | Power frequency withstand voltage (dry | kV | 42 | 49 |
8 | Creepage Distance | mm | 372 | 372 |
9 | Rated lightning impulse voltage (To earth and between Poles) | kV | 75 | 85 |
10 | Insulator lightning impulse voltage | kV | 125 | 125 |
11 | Installation | - | Outdoor | Outdoor |
12 | Operating Mechanism | - | Manual | Manual |
13 | Fuse Type | A | Fuse Link | Fuse link |
14 | Mounting Position | - | Vertical | Vertical |
15 | Type of contact | - | Silver plated | Silver plated |
16 | Altitude | m | 1000 | 1000 |
17 | Temperature | °C | -40 to 70°C | -40 to 70°C |
18 | Mechanical life | Times | 500 | 500 |
Notice
The specification above is also suitable for 11kV specification.
Outdoor drop out cut fuse /Type High-Voltage Drop-out Cutout Fuse 11kV
