Surge Arrester

How Surge Arrester Works

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Surge arresters are safety devices that keep electronic devices from getting damaged by too much voltage. They do this by discharging or redirecting the surge current. It can repeat its functions by ANSI standard C62.11 and prevents current from flowing to the ground. Lightning cannot be absorbed by or prevented by an arrester. It deflects lightning, reduces voltage, and safeguards parallel-connected devices. Surge arresters can safeguard anything from a house to a power plant’s distribution center. They can be found in the circuit breakers of homes, in pad-mounted transformers, on pole-mounted transformers, riser poles, and substations.

A definition of “Surge Arrester”

Protecting electrical equipment from high voltage transients caused by internal and external sources is the primary function of a surge arrester. This type of protection device is used in electrical transmission and distribution systems. It is sometimes called a surge protector. This device must maintain a minimal impulse ratio for any surge case on the arrester to be safely bypassed to the ground rather than continuing through the equipment. Temporary overvoltages and switching surges are two other common types of surges. A switching surge occurs when there are sudden shifts in the system’s operational conditions. It’s the entrapping of energy and the subsequent release of that energy. Chint Surge Arrestor shields the grid and any appliances connected to it from lightning strikes and brief voltage spikes.

The basic operation of a surge protector

When a lightning strike or power surge hits an electrical system, the entire system and all of the electrical devices connected to it are at risk of damage because they are designed to operate within a specific voltage range.

Electrical equipment is damaged or destroyed if it receives a voltage higher than its specified operating range. A surge arrester is installed to prevent the devices from being harmed to stop the high voltage from spreading through the power grid.

Therefore, this voltage-activated device shields computers and other electronic devices from switching surges/lightning and transient voltages in data cables or electrical power. This arrester works by sending the extra voltage into the earth wire instead of letting it spread to the other electronics in the area.


  • Many types of surge arresters and many of them are non-linear, such as the Chint Surge arrester.
  • The operating voltage of surge arresters is higher, and their frequency can be anywhere from 50 to 60 hertz.
  • In the event of a short circuit, it will not exceed its rated current.
  • The discharge current’s minimum value ranges from 5,000 to 20,000 amps.
  • Arresters may be paired with discharge operation counters if their installation occurs at or above 52 kilovolts.
  • You’ll find these gadgets between the life conductors and the grounding system.
  • Surge switching is facilitated by metal oxide arresters, which have low current levels under balanced conditions and short lead lengths and thus require few gaps. Compared to silicon carbide arresters, these have superior performance and greater system accessibility.

CHINT Surge Arrester

The CHINT Surge Arrester is a first line of defense against overvoltages caused by natural phenomena like lightning and sudden power switches.

As part of the CHINT Surge Arrester Family

The CHINT Surge Arrester Series has been tested to protect against overvoltages of up to 500 kilovolts, making it ideal for power transmission and distribution. The KEMA certification and superior sealing capabilities of its composite surge arresters for voltages between 3 and 36 kilovolts ensure their reliable and continuous operation around the clock.

CHINT Voltage and Current Discharge Detector

Whenever there is a change in leakage, this module, which is attached to a surge arrester, detects it and alerts the user. The surge arrester’s discharging times can be recorded. This information can then be used to enhance the operational dependability of the power system. Because of its low residual voltage and simple attachment method, this counter will not degrade the performance of the arrester to which it is connected. 


Thanks to a surge arrester, your home’s electronics and appliances will be safe from damage caused by spikes in voltage. It’s necessary if you reside in a region prone to surges and lightning storms. The surge arrester protects your electronics by dissipating the excess voltage that would have been sent to your home’s electrical system. A home’s electrical setup it’s typically located close to the meter. The CHINT Surge Arrester series, complete with the CHINT SURGE Monitor and Discharge Counter, is a great choice if you’re looking for a reliable, KEMA-certified surge arrester.

Also Read: Why Stretchable Display is the next “Big Thing” in the Electronics Market?



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