ABB MWD-05 Surge arrester MWD series oxide arrester in stock

Here is the product introduction of ABB MWD-05 Surge Arrester:

General Description

The ABB MWD-05 is a member of the MWD series of surge arresters. It is a silicone - rubber - insulated, gapless metal - oxide surge arrester, designed to provide reliable protection for electrical equipment in AC power systems against over - voltage surges.

Technical Characteristics

• Rated Voltage: Usually 5 kV, suitable for AC systems with a nominal voltage of around 4 kV.

• Continuous Operating Voltage: It can continuously operate at a voltage of up to 4.8 kV, ensuring stable performance during normal operation.

• Nominal Discharge Current: The nominal discharge current is 10 kA, which allows it to effectively handle large - amplitude over - voltage surges caused by lightning or switching operations.

• Residual Voltage: When discharging, it can limit the residual voltage to a relatively low level to protect the connected electrical equipment. For example, the residual voltage at 8/20 μs wave shape may be around 16 kV.

• Excellent Non - linear Characteristics: Using metal - oxide (MO) resistors as the core component, it shows excellent non - linear volt - ampere characteristics. Under normal voltage, the resistance is very high, and the leakage current is only in the micro - ampere range. When an over -voltage occurs, the resistance decreases rapidly, allowing a large current to pass through and discharge the over - voltage energy.