Ceramic Shell HV Vacuum Interrupters For AC Contactors 12KV 630A TJ-12/630
Brand Name:WPVAC
Model Number:TJ-12/630
Minimum Order Quantity:1
Place of Origin:Jingdezhen China
Supply Ability:1000pcs per month
Rated Working Voltage(KV):12
Contact Now
Add to Cart
Verified Supplier
Location:
Jingdezhen Jiangxi China
Address:
Xianghu Town Jingdezhen City Jiangxi Province China
Supplier`s last login times:
within 1 hours
Product Details
Company Profile
Product Details
TJ-12/630 12KV 630A vacuum interrupters for AC Contactors
Its main function is to enable the medium and high voltage circuit to quickly extinguish the arc and suppress the current through the excellent insulation of the vacuum inside the tube, and to avoid accidents and accidents. It is mainly used in the power transmission and distribution control system and also in metallurgy. Distribution systems for mining, petroleum, chemical, railway, broadcasting, communications, industrial high frequency heating, etc.
working principle
The vacuum interrupter in the vacuum bubble is an electric vacuum
device that utilizes a high vacuum working insulation arc
extinguishing medium to realize the on/off function of the power
circuit by a pair of contacts sealed in a vacuum. When it breaks a
certain value of current, at the moment of separation of the moving
and static contact, the current shrinks to a point where the
contact is just separated, and the resistance between the
electrodes increases sharply and the temperature rapidly increases
until the evaporation of the electrode metal occurs. Extremely high
electric field strength results in extremely strong emission and
gap breakdown, resulting in a vacuum arc. When the power frequency
current approaches zero, it is also an increase in the contact
opening distance. The plasma of the vacuum arc quickly spreads
around. After the arc current crosses zero, the medium in the
contact gap quickly changes from the conductor to the insulator,
and the current is broken. Due to the special configuration of the
contacts, the contact gap during the arcing will produce an
appropriate longitudinal magnetic field. This magnetic field can
evenly distribute the arc on the contact surface, maintaining a low
arc voltage, thus making the vacuum interrupter have a higher arc.
Post-media strength recovery rate, small arc energy and small
corrosion rate. In this way, the ability and service life of the
vacuum interrupter breaking current is increased.
Send feedback
History
We have a wide range of equivalents for other part numbers . Please
contact us if you can not find here what you need.
The freight of list is just reference, please base on the actual
freight when the products are sent to you.
Shipment:
When you place an order, please choose a shipping method and pay
for the order including the shipping fee. We will send the items
within 5 days once your payment is completed.
The delivery time on all international shipments due to differences
in customs clearing times in individual countries, which may affect
how quickly your product is inspected.
Buyers are responsible for all additional customs fees, brokerage
fees, duties, and taxes for importation into your country. These
additional fees may be collected at time of delivery. We will not
refund shipping charges for refused shipments.
The shipping cost does not include any import taxes, and buyers are
responsible for customs duties.
We ship by DHL,UPS,FEDEX OR EMS. We will select the fast and
reliable way for delivery. Save on shipping and safter on delivery.
Items will ship within 5 business days on payment
Received.We are not responsible for wrong or undeliverable address.
Delivery time:
By UPS, DHL, FEDEX: 5-7 Businessdays to most of countries.
Received:
Dear Friend when you receive the items you ordered in 48 hours, pls
check it carefully first
If they are damaged or not, if some items broken, pls inform us in
time.Pls don’t leave a bad feedback or return the goods to us
without contacting us.Don’t worry, we must be responsible for your
shopping at our store.
Returns:
After you receive the items you ordered. In 15 days, When you are
not satisfied with our products and service. We will refund to you
or resend new one to you immediately.
However, the buyer should make sure that the items returned are in
their original conditions. If the items are damaged or lost when
they are returned, the buyer will be responsible for such damage or
loss, and we will not give the buyer a full refund. The buyer
should try to file a claim with the logistic company to recover the
cost of damage or loss.
The buyer will be responsible for the shipping fees to return the
items
Warranty & Maintenance:
We offer the 1-month free replacement. Buyers may request for a
replacement within 15 days from your receipt of the product. The
buyer should return the product in the original conditions to us
and should bear the shipping costs for return.
We provide 12-month free maintenance. If any part is required to be
replaced, the buyer should also pay for the costs of the parts to
be replaced.
Before returning the items, please confirm the return address and
the logistics method with us. After you give the items to the
logistic company, please send us the tracking number. As soon as we
receive the items, we will repair or exchange them ASAP.
Ceramic Shell HV Vacuum Interrupters For AC Contactors 12KV 630A TJ-12/630
Inquiry Cart
0