ISO9001 Distribution Line Composite MOA 10KA 33KV Zinc Oxide
Gapless Arrester
Why does Zinc Oxide Gapless Arrester operate?
A Zinc Oxide Gapless Arrester must be able to withstand the
continuous power-frequency voltage for which it is intended to
operate. It must discharge any transient energy from the system in
the form of current, while preventing the voltage across the
equipment from becoming excessive. It must operate in the same
environment as the protected equipment. Temporary overvoltage (TOV)
capability shows the allowable overvoltage and duration that an
arrester can withstand without damage.
Arresters can operate due to a variety of reasons:
• TOV condition lasted too long
• Undersized arrester
• Lightning surges experienced were greater than the duty rating
• Gap degradation in silicone carbide arresters
• Deterioration of oil-based polymer housing due to the leaking of
the silicone oil additive
• Wildlife
• Disk aging
Porcelain arresters may break apart after experiencing an
end-of-life event, whereas polymer arresters may experience a blow
out the side or the disconnector will operate which will separate
the arrester from ground.
Data Specification of 10kA 33KV Zinc Oxide Gapless Arrester
| Type | Rated Voltage | MCOV(KV) | Maximum Residule Voltage Using
an 8/20 Current Impulse (kV) | Creepage
Distance (mm) | Dry Arcing
Distance (mm) |
| 5.0kA | 10kA | 20kA |
| YH10W-3 | 3 | 2.55 | 7.5 | 8.2 | 9.2 | 250 | 146 |
| YH10W-6 | 6 | 5.1 | 15.1 | 16.3 | 18.4 | 250 | 146 |
| YH10W-9 | 9 | 7.65 | 22.6 | 24.5 | 27.5 | 370 | 178 |
| YH10W-12 | 12 | 10.2 | 30.1 | 32.6 | 36.5 | 520 | 214 |
| YH10W-15 | 15 | 12.7 | 37.7 | 40.8 | 46.1 | 650 | 250 |
| YH10W-18 | 18 | 15.3 | 45.2 | 48.9 | 55.3 | 650 | 250 |
| YH10W-21 | 21 | 17 | 52.7 | 57.1 | 64.3 | 790 | 284 |
| YH10W-24 | 24 | 19.5 | 60.3 | 65.2 | 73.5 | 920 | 318 |
| YH10W-27 | 27 | 22 | 67.8 | 73.4 | 82.6 | 1050 | 356 |
| YH10W-30 | 30 | 24.4 | 75.4 | 81.6 | 91.6 | 1200 | 392 |
| YH10W-33 | 33 | 26.7 | 82.9 | 89.7 | 99.5 | 1340 | 428 |
| YH10W-36 | 36 | 29 | 90.4 | 97.9 | 109.6 | 1340 | 428 |
Zinc Oxide Gapless Arrester
As a manufacturer in China, we are proud to introduce our latest
product: Zinc Oxide Gapless Arrester. This product is designed for
optimum protection against high voltage surges in the power system.
It is utilized to safeguard power distribution equipment such as
transformers, switchgears, and power transmission lines.
The zinc oxide gapless arrester is made up of ceramic and metal
electrode plates, and the oxide material is zinc oxide. The gaps
found in conventional surge arresters are eliminated in this
product, leading to superior performance. Thus, the Zinc Oxide
Gapless Arrester provides protection not only against normal surges
but also against transient overvoltages of high energy.
Why Choose Zinc Oxide Gapless Arrester?
In recent years, the increase in demand for power equipment in
several industries has led to a rise in voltage levels leading to
more frequent surges. These surges can cause substantial damages to
power distribution equipment leading to high maintenance costs or
costly replacement of equipment. Our Zinc Oxide Gapless Arrester
provides a reliable solution to the problem of frequent surges
while offering high protection with low maintenance.
Components of Zinc Oxide Gapless Arrester
The core component of the Zinc Oxide Gapless Arrester is the zinc
oxide element that absorbs the surge energy by converting it into
heat. It consists of a Metal oxide Varistor (MOV) which degrade
over time leading to a decreased performance of a conventional
surge arrester. Our product, however, uses a much more stable Zinc
Oxide technology which signifies higher reliability and a longer
lifespan of up to 30 years or more.
The Zinc Oxide arrester also consists of porcelain housings, and
the correct combination of these with the zinc oxide element
provides protection from the surrounding environment. The design
process of our Zinc Oxide Gapless Arrester includes a systematic
testing procedure of the insulation which ensures that the product
can perform under severe operation conditions.
Benefits of Zinc Oxide Gapless Arrester
• High Energy Handling Capacity: The Zinc Oxide Gapless Arrester
has higher energy handling capacity making it suitable for both
high and low severity systems.
• Long-Observation Life: This product has a longer lifespan
compared to the conventional surge arrester, thus reducing the
manufacturer's lifetime maintenance expenses.
• Improved Reliability: The combination of Zinc Oxide and porcelain
technology provides complete protection for the device by making it
resistant to harsh environmental conditions, increased reliability,
and enhanced safety.
• Low Maintenance: Our Zinc Oxide Gapless Arrester requires minimal
maintenance due to its advanced technology, thus saving maintenance
costs and reducing downtime.
• Safety: The Zinc Oxide Gapless Arrester is an excellent safeguard
against high voltage surges, which can cause significant damage to
equipment or personnel. Hence, it ensures safety for both power
distribution equipment and the people operating the equipment.
Applications
Our Zinc Oxide Gapless Arrester is suitable for installation in a
variety of applications such as:
• Overhead Lines
• Transformer substations
• High voltage switchgear and control centers
• Power plants: Thermal, nuclear, and hydroelectric.
• Railways and transportation networks
• Mining companies
Conclusion
Our Zinc Oxide Gapless Arrester is ideal for protecting power
distribution equipment from high voltage transients damage. This
product offers several benefits such as high energy handling
capacity, reliability, low maintenance, and safety. We are
confident that our latest product will provide a stable and
dependable solution for the protection of power equipment against
high voltage surges. Our company ensures the best manufacturing
experience and technical support for our customers. Contact us
today to enjoy the benefits of our Zinc Oxide Gapless Arrester.
