Hunan Heou Engineering Consulting Co., Ltd |
|
Place of Origin | Heilongjiang;China (Mainland) |
Brand Name | HAMMAND (hd) |
Model Number | HDS-B100 |
Product Keywords | surge arrester ,power surge arrester,100ka power surge arrester |
Composition Editor Podcast
Power lightning protection includes power lightning protection
module, power lightning protection box, power lightning protection
socket, etc.
The difference between power lightning protection module and power
lightning protection box is the difference in size, the latter is
more powerful and has a lightning counter, etc., but the module is
easier and cheaper to install than the lightning protection box.
[1]
Category Editor Podcast
By use
(1) Switching type lightning protector
Its operating principle is when there is no transient overvoltage
presented as a high impedance, but once the response to lightning
transient overvoltage, its impedance is suddenly changed to a low
value, allowing the lightning current to pass. Devices used for
such devices are: discharge gaps, gas discharge tubes, gate
transistors, etc.
(2) Voltage limiting type lightning arrester
Its working principle is that when there is no transient
overvoltage for high impedance, but with the increase in surge
current and voltage impedance will continue to decrease, its
current-voltage characteristics are strongly non-linear. Devices
used for such devices are: zinc oxide, varistors, suppression
diodes, avalanche diodes and other lightning protection devices are
mostly voltage limiting type.
Lightning protector is used to protect various electrical equipment
in the power system from lightning overvoltage, operating
overvoltage, frequency transient overvoltage impact and damage to
an electrical appliance. The main types of lightning arresters are
protection gaps, valve-type lightning arresters and zinc oxide
lightning arresters. Protection gaps are mainly used to limit
atmospheric overvoltage and are generally used to protect incoming
sections of distribution systems, lines and substations. Valve type
lightning arresters and zinc oxide lightning arresters are used for
substation and power plant protection, and are mainly used to limit
atmospheric overvoltage in 500KV and below systems, and will also
be used to limit internal overvoltage or as backup protection for
internal overvoltage in ultra-high voltage systems. [2]
Surge protective device, protect against lightning surge voltages in solar system (photovoltaic
power supply system).
These units must be installed in parallel on the dc networks to be protected and provide common
and different modes protection. Its installed location are recommended at both ends of the dc
power supply line (solar panel side and inverter/converter side), especially if the line routing is
external and long.
Surge protective device, protect against lightning surge voltages
in solar system (photovoltaic power supply system).
These units must be installed in parallel on the DC networks to be
protected and provide common and different modes protection. Its
installed location are recommended at both ends of the DC power
supply line (solar panel side and inverter/converter side),
especially if the line routing is external and long.
High energy MOVs equipped with specific thermal disconnectors and
related failure indicators.
FAQ
Q: If I'm interested in your DC SPD when I can receive your
quotation and detail information after send the enquiry?
A:All your enquiry will be replied in 24hours.
Q: Can I get a sample before the order because I really don't how
is your DC SPD quality?
A:Of course!We also think sample order is the best way to build the
trust.And in our company we offer sample service!Please send the
enquiry to us and get the sample!
Q: How's the delivery?Because I really need them is urgently?
A:For sample order 3~7days will be no problem.And for regular order
we promise in 10 days.
Q: How's the warranty period for your DC SPD?
A: We offer two year warranty for our customer.