Arc protection Pressure Sensor SMA905 Fiber Connector 

What is an arc flash?

Human safety is critical to utilities and industries, including oil, gas, water, wastewater, and metals and mining.

Arc flash is a hazardous situation with a release of energy.

The energy from an arc flash event can cause injury.

How is the arc generated?

Arc flashes occur when the insulation or air separation between energized components within a circuit is compromised. Arc flash events can be caused by a number of factors, such as a two-phase short circuit, which can cause phase-to-phase faults. Common examples of causing phase-to-phase failures include dropped tools, accidental contact by maintenance personnel, build-up of corrosion or conductive dust on conductors, and the presence of pests, such as rats, or snakes, that come into contact with energies.

Arc protection

Danger of Arc Flash

Arc flash events can result in dangerous and potentially lethal heat, ultraviolet radiation, explosion pressure, flying shrapnel, and deafening sound waves.

How to solve such problems?

Arc protection at the speed of light:

Protect people and equipment

• Technology and overcurrent detection

• To reduce the likelihood of injury

• Reduces arc incident energy levels by up to 88%

• To increase safety and minimize equipment damage

• Safely detect arc flash by using a combination of light sensors

• Install into new systems or retrofit into existing equipment for everyone

• Detect arc events and send trip signals in as little as 2 ms 

Arc protection

Benefits of Arc Flash Protection

1. High speed trip:

Relays reduce the risk of arcing by reducing overall troubleshooting time.

2. Reduce accident energy:

The faster the arc flash event disappears, the lower the incident energy. The relay detects an arc flash hazard and sends a trip signal to the circuit breaker within 2 ms.

3. Improve security:

Arc-flash detection reduces fault clearing time, reduces arc-flash hazards, and improves safety. To verify arc-flash protection performance, a series of tests were conducted in a high-current laboratory. During these tests, the arc flash

Using technology, incident energy levels were reduced by 88%.

Arc protection

4. Reduce damage to switchgear:

With Arc Flash Hazard Protection, equipment damage can be minimized during an arc flash event, allowing affected equipment to be restored faster and at a lower cost. In addition, the availability of the power system is maximized.

5. Maintain selective coordination:

Arc flash events trigger immediate response while coordinating with external protection for downstream faults

6. Stay outside the danger zone:

Get metering, event and maintenance information remotely from the relay via Ethernet or serial communication to maintain a safe distance. An optional delay circuit breaker trips or closes at the push of a button, allowing personnel to move to a safe distance.

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