Preferential trip
On generator overload, non-essential consumers such as galley and air conditioning are switched off in stages to avoid a blackout.
In 9 languages
| Language | Term |
|---|---|
| English | Preferential trip |
| Russian | Отключение неответственных потребителей |
| Romanian | Deconectare preferențială |
| Polish | Wyłączanie odbiorników nieważnych |
| Latvian | Nesvarīgo patērētāju atslēgšana |
| Filipino | Preferential trip |
| Indonesian | Preferential trip (pemutusan beban tidak penting) |
| Chinese | 优先脱扣 |
| Croatian | Isključenje manje važnih potrošača |
Find it in the manuals All terms
Related terms
Pressure transmitter (4–20 mA)Turns pressure into a 4–20 mA signal for the alarm system; zero and span are checked against a test gauge.Temperature sensor (Pt100, thermocouple)Pt100 resistance sensors are used for water and oil; thermocouples for exhaust gas, where temperatures are higher.Batteries (emergency and starting)Supply emergency lighting, radio and alarms during a blackout; electrolyte level, voltage and charger are checked weekly.Main switchboard (MSB)Switchboard where the main generators are connected and paralleled and from which power goes to all consumers.Emergency switchboard and emergency generatorAbove the main deck, outside the engine room; the emergency generator starts automatically on blackout and is tested weekly.Shore power (shore connection)Supply from the shore during dry dock or lay-up; phase sequence and voltage are checked before closing the shore breaker.Circuit breaker (ACB / MCCB)Switch that opens automatically on overload or short circuit; generator breakers also trip on reverse power.Insulation resistance and meggerResistance between a conductor and earth, measured with a megger at 500 V DC; a falling trend warns of damp or damaged insulation.