Porcelain drop out fuse in 11KV
drop-fuse structure and working principle
drop-out High voltage fuse mounting plate is fixed in the middle of
the support insulator. Support the insulator has the upper and
lower terminals for the connection wire. Upper and lower terminals
attached to the upper and lower static contact. The fuse tube is
made of phenolic paper tube or laminated glass cloth tube, lined
with arc-extinguishing tube; both ends are equipped with upper and
lower moving contact, after the fuse penetrates the fuse tube,
using the tension of the fuse, , Move the contact taut so that the
fuse remains closed.
When operating. Insert the lower moving contact of the fuse tube
into the lower terminal with the high voltage insulated rod and
make it come into contact with the lower stationary contact, then
insert the pull hook of the high voltage insulated rod into the
operating ring of the fuse tube to drive the fuse tube The upper
moving contact pushed into the terminal, contact with the static
contact, the circuit connected.
After the fuse is blown The upper and lower movable contact of the
fuse tube loses the tension and loosens, the movable contact slides
downward under the action of the spring, the fuse tube falls by its
own weight, the fuse is in the disconnected state, and the obvious
fracture occurs
When a line or device fails. The fault current causes the fuse to
fuse quickly and create an arc. Arc extinguishing tube produces a
lot of gas under the action of the electric arc, so that the tube
to form a great pressure, the gas jet out at high speed, this
powerful air flow, the arc quickly elongated and extinguished.
General
1. Made of high quality material, it has long service life. The
ferrules is made of pure copper strip. The fusion tube is made of
high strength china. The extinguishing medium is made of pure
quartz sand.
2. Easy installation and maintenance. The terminal of fusant
contacting with the end-plate (or the connecting plate) use the
technology of spot welding.
3. Safe indication. The fuse with the indicator can be show the
fusing when the indicator pop-up.
4. Durable and reliable
Technical Parameters
| Type | Rated voltage (kV) | Rated current (A) | Breaking current (A) | Impulse voltage (kV) | Power-frequency withstand voltage(kV) | Creepage distance (mm) |
| PD-12/100 | 10-15 | 100 | 10000 | 170 | 70 | 340 |
| PD-12/200 | 10-15 | 200 | 12000 | 170 | 70 | 340 |
Packaging & Delivery
- Packaging Details
- In carton and export standard packing
QTY: 3 pcs
N.W: 15.9 kgs
G.W: 17.2 kgs
MEAS: 42*32.5*34.5 cm
- Port
- Ningbo or Shanghai
- Lead Time :
| Quantity(Pieces) | 1 - 300 | 301 - 900 | >900 |
| Est. Time(days) | 10 | 12 | To be negotiated |
Product Description
