1. Aim Abdurrohim
1102121286
TI 36 INT

2. Arc suppression is the reduction of sparks formed
when current-carrying contacts are separated. The
spark is a luminous discharge of highly energized
electrons and ions, and is an electric arc.
Arc Suppression is required to keep contacts in the
device from burning up.

3. There are several possible areas of use of arc suppression methods,
among them metal film deposition and sputtering, arc flash
protection, electrostatic processes where electrical arcs are not
desired (such as powder painting, air purification, PVDFfilm poling)
and contact current arc suppression. In industrial, military and
consumer electronic design, the latter method generally applies to
devices such as electromechanical power switches, relays and
contactors. Arc suppression is contact protection.

4. Every time an electrical power device (for example:
heaters, lamps, motors, transformers or similar power
loads) turns on or off its switch, relay or contactor
transitions either from a closed to an open state (break
arc) or from an open to a closed state (make arc & bounce
arc), under load, an electrical arc occurs between the two
contact points (electrodes) of the electromechanical
power switch, relay or contactor. The break arc is typically
more energetic and thus more destructive

5. 1. Visual Inspection of the
arc.
1. Graphical representation of
measurements obtained by
an oscilloscope

6. Common devices used to prevent arcs are capacitors, snubbers, diodes,
Zener diodes, varistors, transient voltage suppressors, and voltage-
dependent resistors.Contact arc suppression solutions that are considered
more effective.
1. Two-wire contact arc suppressor
2. Solid state relays are not electromechanical, have no contacts, and,
thus, do not create electrical arcs.
3. Hybrid power relays;
4. Hybrid power contactors.

7. 1. Minimized contact damage from arcing and therefore
reduced maintenance, repair and replacement
frequency.
2. Increased Contact reliability.
3. Reduced heat generation resulting in less heat
management measures such as venting and fans.
4. Reduced Ozone and pollutant emissions.
5. Reduced Electromagnetic Interference (EMI) from arcs -
a common source of radiated EMI.