Product DescriptionThe arrester is connected between the cable and
the ground, usually in parallel with the device to be protected.
The arrester can effectively protect the communication equipment.
Once the abnormal voltage occurs, the arrester will act to protect
the equipment. When the communication cable or equipment is
operating at the normal operating voltage, the arrester will not be
effective, to the ground as a circuit breaker. When a high voltage
occurs and endangers the insulation of the device to be protected,
the arrester acts immediately to direct the high voltage impulse
current to the ground to limit the voltage amplitude and protect
the insulation of communication cables and devices. When the
overvoltage disappears, the arrester quickly restores the original
state, so that the communication line can work normally.Therefore,
the main function of the arrester is to cut the amplitude of the
intrusion flow wave through the function of parallel discharge gap
or nonlinear resistance, and reduce the overvoltage value of the
protected equipment, so as to protect the communication line and
equipment.Arresters can be used not only to protect against high
voltages generated by lightning, but also to protect against high
operating voltages.The role of lightning arrester is used to
protect all kinds of electrical equipment in the power system from
lightning overvoltage, operating overvoltage, power frequency
transient overvoltage impact and damage to an electrical appliance.
The main types of arrester are protection gap, valve type arrester
and zinc oxide arrester. The protection gap is mainly used to limit
atmospheric overvoltage, and is generally used to protect the
incoming line segment of the distribution system, line and
substation. Valve type arrester and zinc oxide arrester are used
for the protection of substation and power plant. In 500KV and
below system, they are mainly used to limit atmospheric
overvoltage. In ultra-high voltage system, they will also be used
to limit internal overvoltage or backup protection of internal
overvoltage. ated Voltage(Ur)MCOV (Uc)Nominal Discharge
Current(In)Rated FrequencyLong Duration Current Impulse 2000 m
SecHigh Current Impulse 4/10 m Sec (Imax)Maximum Residual Voltage
at Nominal Discharge Current (Ures)Creepage DistancePressure relief
capabilityIEC Line Discharge kV kV kA
Hz A kA kV mm / /
10 8.4 10 48 - 62 250 100
30 440 20kA 1 Company ProfileWuhan Line
Power Transmission Equipment Co., Ltd. is mainly engaged in the
research ,development,production and sales of high voltage
transmission power composite insulator series products.The core
technology comes from the scientific and research institutions such
as Wuhan University (originally Wuhan University of Water and
Electricity),Hubei Institute of Chemical and Industry and Wuhan
High Pressure Research Institution and so on.In order to adapt to
the industry development demands,it was reformed in combination
with national capital by the scientists and engineers who are in
the field of composite insulator.Now it is restructured as a new
modernized enterprise which integrates research ,production,
marketing and sales. The company had formed a series of composite
insulator mature products at the beginning of its establishment.
These products have been widely used in power, railway and other
industries for many years.The core team members of company
technology, production and management have more than 20 years of
working experience in the same industry. The excellent core team
ensures the high starting point of the company in technology and
products. Our company with strong strength, reasonable price,
good service and a number of enterprises to establish a
long-term partnership.With high quality products and
perfect after-sales service, we have won the consistent
reputation of customers all over the country.We sincerely
welcome customers from home and abroad to visit, investigate
and discuss business cooperation. Sound
Testing EquipmentThe company is equipped with 1000kV Power
Frequency Testing Transformer, 1800kV Impulse Voltage
Generator set and 2000kN Automatic Tensile Test Machine, as
well as well-equipped Physical Laboratory and Electrical
Laboratory.Advanced Manufacturing EquipmentsThe company holds the
most advanced Automatic Silicone Injection Molding Machines
and Voice-operated Displacement Crimping Machines which means
the world's most advanced process technology
level. CertificationsExhibitionWe have been participating in
various exhibitions at home and abroad from 2010 to 2020. At
the exhibition, relevant people from the industry and us saw our
products directly and closely. FAQ1. Q: Are you the factory or
trading company?A: We are factory who was founded in
2008.2. Q: What're your main products?A: insulators, the
hardware of all kinds for high-voltage applications and related
products. 3. Q: Can I get some samples?A:
Yes, sample order is available for quali
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