Product Details
Polymeric Surge Arrester , ZnO Surge Arrester
Description:
Polymer surge arrester is a device to protect electrical equipment
from over-voltage transients caused by external (lightning) or
internal (switching) events. Also called a surge protection device
(SPD) or transient voltage surge suppressor (TVSS), thisclass of
device is used to protect equipment in power transmission and
distribution systems. (For consumer equipment protection, different
products called surge protectors are used.) The energy criterion
for various insulation material can be compared by impulse ratio,
the surge arrester should have a low impulse ratio, so that a surge
incident on the surge arrester may be bypassed, to the ground
instead of passing through the apparatus.
Specifications:
Type | YH5W5-15/33 |
Rated voltage---------kV | 15 |
MOCV ----------------kV | 12.7 |
Nominal Current-------kV | 5 |
Residual voltage of steep impulse----at 5kA(kV) | 43.5 |
8/20µS Residual voltage of lightning impulse current kV(Peak
value)-----at 5kA(kV) | 40 |
Residual voltage of switching impulse current kV (peak value)----at
1kA (kV) | / |
1mA D.C reference voltage (kV) | 21.2 |
Line discharge level | 1 |
2mS long duration impulse current A | 250 |
4/10µS High current impulse kA | 65 |
Lightning impulse withstand kV | 95 |
Power frequency voltage withstand(dry/wet)kV | 28 |
0.1S TOV--------------kV | 18 |
1S TOV----------------kV | 17.25 |
10S TOV---------------kV | 16.5 |
1200S TOV-------------kV | 15 |
Creepage distance ----mm | 500 |
Material employed in series non-linear resistor | Zinc Oxide |
Company Profile
Hangzhou Yongde Electric Appliances Co.,Ltd was founded in 1993. As
a high-new-tech enterprise in Zhejiang province, it is about 15
kilometers from downtown area.
Our Company is one of the recommended model companies for national
power grid construction and transformation. We specialized in
manufacturing of 0.22-500kv metal oxide arrester of all types and
applications and 10-252kv outdoor high-voltage disconnecting
switch.
Currently, our company employs 180 Staffs, with 23
technically-titled and 15 senior technical title holders, who
organize a high standard scientific research and development team.
Every year we invest many research funds for new product
development and acquiring advanced production and testing equipment
each month.
Through developing new generations of high-tech products, the
technology and production level maintains a leading position in the
national level.
The newly developed GW37, GW38 series outdoor high-voltage
disconnecting switch have been proved by authorities, which has
achieved ideal operating results and won good praise from users.
Our company has a variety of CNC equipments of over a hundred
units. In 2001, our company passed the ISO9001 quality inspection,
and in August 2010 adopted itself to the ISO9001-2008 version of
reinspection.
The annual production capacity of the company is about Sixteen
million U.S Dollar, with well equipped means of inspection for raw
materials and purchased spare parts. Each procedure in the
manufacturing process is under strict control and supervision. The
inspection equipments and instruments are advanced and reliable
which effectively guaranteed our product quality.
Yongde holds the quality policy of being 'the technical forerunner,
supreme in quality, supremacy of customers, and innovative
progressing', so that our products and services successfully
satisfied our users. We warmly welcome friends and customers from
home and abroad to contact for exchanges and corporations. We also
welcome feedbacks from our user communities.