Ship overcurrent relays are used to protect sensitive equipment against over or under current conditions. By using current transformers (CTs), these protective relays monitor large... Read more
A simple overview of ship electrical contactor and all contractors accessories. The itemized overview of contactor accessories should help while sending routine ship technical insp... Read more
Contactors and relays from certain manufacturers are constructed to work with a separately top-mounted ‘shock absorber’ mechanism. It is attached as an accessory to the... Read more
Manufacturers supply mechanical latching modules that should be fitted with either control relays or contactors. The resulting devices are called mechanically held relays.Once the... Read more
The mechanical interlock is assembled between two contactors to prevent them from simultaneously closing and is often used as an added safety feature to electrically interlocked co... Read more
Electronic equipment such as programmable logic controllers (PLCs), timing relays and coupling modules that can be affected by other components on ship electric network, are common... Read more
The contacts of electromechanical devices on ship electrical system are utilized through control circuitry only are unlikely to sustain currents higher than 10 Amps. They are calle... Read more
A reed relay consists of a reed switch, ie a sealed glass capsule containing two separated overlapping ferromagnetic reeds. A typical reed switch capsule. The capsule is surrounded... Read more
The relay is an electro-mechanical switch, consisting of a coil, an armature, and contacts. A current passes through the coil creating a magnetic field that attracts the armature,... Read more
Overload relays protect motors from overheating, eg by machinery being overloaded or an open phase In a three-phase system.The relay will open and disconnect from the power source... Read more
