Zine Oxide Lightning Arrester
Description:
The zinc oxide arrester is the most advanced over-voltage protector in the world, Due to make the resistor disc of core component mainly adopt zine oxide arrester. Compared with the conventional silicon carbide arrester, this prescription of the product improves greatly the volt-Ampere characteristics of the resistor disc and increased through-current capability at over-voltage so as to dring radical changes for the characteristics of the arresters.
Under the circumstance of normal operating voltage, the current through the arrester is just on microampere degree, When suffered from over-voltage, the arrester's excellent nonlinear characteristics will make the current through the arrester increase to several thousand amperes, while the arrester will be under the circulating state and release over-voltage energy so as to protect the power transmission equipment against the damage caused by the over-voltage.
| Type | System Rated voltage KV(rms) | Arrester Rated voltage KV(rms) | Continuous Rated voltage KV(rms) | DC lmA voltage (kv) | Lightning Impulse residual voltage (kv) | Steep wave Impulse residual voltage (kv) | 2ms square wave Impulse current withstand (A) |
| HYWS -3.8/17 | 3 | 3.8 | 2.4 | 7.5 | 17.0 | 19.6 | 100 |
| HYWS -7.6/30 | 6 | 7.6 | 4.0 | 15.0 | 30.0 | 34.5 | 100 |
| HYWS -12.7/50 | 10 | 12.7 | 6.6 | 26.0 | 50.0 | 57.5 | 150 |
| HYWS17/50 | 10 | 17 | 13.6 | 26.5 | 50.0 | 57.5 | 150 |
| HYWZ-7.6/27 | 6 | 7.6 | 4.0 | 14.5 | 27.0 | 31.0 | 200 |
| HYWZ-12.7/45 | 10 | 12.7 | 6.6 | 24.0 | 45.0 | 51.8 | 200 |
| HYWZ-17/45 | 10 | 17 | 12.7 | 24.0 | 45.0 | 51.8 | 200 |
| HYWZ-42/134 | 35 | 52 | 40.8 | 78.0 | 134.0 | 154.0 | 400 |
| HY2.5WD-7.6/19 | 605 | 7.6 | 4.8 | 11.5 | 19.0 | 21.9 | 200,400 |
| HY2.5WD-12.7/31 | 10.5 | 12.7 | 6.6 | 19.0 | 31.0 | 35.7 | 200,400 |
| HY2.5WD-16.7/40 | 13.8 | 16.7 | 9.0 | 25.0 | 40.0 | 46.0 | 400 |
| HY2.5WD-19/45 | 15.7 | 19 | 10.0 | 28.5 | 45.0 | 51.8 | 400 |
| HY5WR-7.6/27 | 6 | 7.6 | 4.8 | 13.8 | 27.0 | 20.8 | 400 |
| HY5WR-12.7/45 | 10 | 12.7 | 6.6 | 23.0 | 45.0 | 35.0 | 400 |
| HY5WR-42/134 | 35 | 52 | 23.4 | 73.0 | 134.0 | 105.0 | 400 |
| The ambient air temperatures are no higher than +40ºC,lower than -40ºC; |
| The altitude above sea level dose not exceed 1000-2000m(the plateau areas should |
| be indicated when order); |
| AC system frequency is 50Hz or 60Hz; |
| Power frequency voltage brought to bear on arrester for a long time does not |
| exceed arrester's continuous operation voltage; |
| Maximum wind speed does not exceed 35m/s; |
| The earthquake intensity does not exceed 7 degrees; |
| The filthy area should be given clear indication. |
Zhejiang ZheGui Electric Co., Ltd established in 2013. We are located in Zhejiang with convenient transportation access and developed electrical market. We are group of private enterprises that hold the production license issued by the former ministry of energy and ministry mechanical and electrical engineering.
The company has nearly 60 million fixed assets and more than 60 employees, covering 23133 square meters. We are specialized in R&D production of complete switchgear of high and low voltage equipment such as prefabricated substation, distribution cabinet/box, drawer cabinet, ring network cabinet, inflatable cabinet, etc.
We owns three CNC bending machine, CNC shearing machine, CNC laser cutting machine and a series of advanced production equipment to further optimized the product structure and improve the efficiency of production. After nearly 7 years of development, it has passed ISO 9001-2000 quality system certification. All items produced by our own factory, so our advantages are: reliable quality and reasonable price. Gather the world's energy to delight your business. It's honorable for Zhegui to share your progress, brilliance and success!