The Drop Out Type Surge Arrester is a kind of lightning arrester, which is skillfully installed on the drop type mechanism after refitting the distribution type zinc oxide arrester.When the power is not cut, the arrester can be tested, repaired and replaced with the help of load-break operating hook stick tool. It not only ensures the smooth running of the line, but also reduces the working intensity and time of the power maintainers. Especially suitable for unsuitable places such as communication, airport, station, hospital, etc.
Condition of Use
Ambient air temperature within the range of -40℃ to +40℃；
Altitude above sealevelnot exceeding 2,000m;
Frequencyofthe A.C.power supply being 50Hz or 60Hz;
Power frequency voltage applied continuously between theterminals of the arrester not exceeding its continuous operating voltage;
Maximum wind speed not exceeding 35m/s;
The earthquake intensity not exceeding 7 degrees.
Main technical Parameters:
| Type | Rated Voltage(kV) | System Highest Voltage(KV) | MCOV (KV) | Operation Current (KA) | Steep Current Impulse (KV) | Switching Current Impulse (KV) | Lightning Current Impulse (KV) | 2000s Square Wave Impulse Current Withstand (A) |
|---|---|---|---|---|---|---|---|---|
| DYH5W-10 | 10 | 11 | 8.4 | 5 | 36 | 30 | 23 | 100-250 |
| DYH10W-10 | 10 | 11 | 8.4 | 10 | 36 | 30 | 23 | 250-550 |
| DYH5W-15 | 15 | 17 | 12.7 | 5 | 47.5 | 38.5 | 45 | 100-250 |
| DYH10W-15 | 15 | 17 | 12.7 | 10 | 47.5 | 38.5 | 45 | 250-550 |
| DYH5W-21 | 21 | 22 | 17 | 5 | 66.5 | 53.9 | 63 | 100-250 |
| DYH10W-21 | 21 | 22 | 17 | 10 | 66.5 | 53.9 | 63 | 250-550 |
| DYH5W-33 | 33 | 36 | 26.8 | 5 | 104.5 | 84.7 | 99 | 100-250 |
| DYH10W-33 | 33 | 36 | 26.8 | 10 | 104.5 | 84.7 | 99 | 100-250 |
| DYH5W-36 | 36 | 38 | 29 | 5 | 114 | 92.4 | 108 | 100-250 |
| DYH10W-36 | 36 | 38 | 29 | 10 | 114 | 92.4 | 108 | 250-550 |
Drop Out Type Surge Arresters, also known as drop-out metal oxide surge arresters, are designed to provide high levels of protection in electrical systems. Here are some applications of Drop Out Type Surge Arresters:
A Drop Out Type Surge Arrester is a protective device used in electrical power systems to safeguard equipment from over-voltage transients caused by lightning strikes or switching operations. It is designed to drop out and provide a visual indication when it has expired or needs replacement.
When a surge occurs, the Drop Out Type Surge Arrester conducts the excess energy to the ground, protecting the connected equipment. If the arrester sustains damage or reaches the end of its life, it physically drops out, providing a clear visual signal that it needs to be replaced.
The main advantages include:
They are suitable for various applications, including:
Consider the following factors:
Maintenance involves:
In case of failure or when the arrester drops out:
Our Drop Out Type Surge Arresters come with a two-year warranty from the date of delivery. During this period, any quality issues under normal operating conditions will be addressed by repair or replacement at no additional cost.
