Deif PPU 300 - Units

Term Abbreviation Explanation
SHORE connection
controller
Controls and protects the power supply from the shore connection.
Shutdown An emergency or fast stop of the genset engine. No cooldown time is allowed.
Switchboard
The cabinet where the power sources are connected to the power consumers. See
Busbar too.
Switchboard control SWBD control
A controller operating mode. Remote and local commands to the controller are
disabled. The operator controls the system using the switchboard. The controller
monitors operation, and the controller alarms are active (that is, if an operating
value activates an alarm, the controller does the alarm action).
System
The gensets, the other power sources, all breakers, the busbars, and all their
controllers. Within the system, the DEIF controllers work together to supply the
power required safely and efficiently.
Third-party equipment
Equipment other than the DEIF controller. For example: The genset, the genset
engine control system, the wiring, the busbars, and the switchboard.
Time t
Transmission control
protocol/internet
protocol
TCP/IP
The Internet protocol suite. It provides end-to-end connectivity by specifying data
handling.
Trip
An emergency or fast opening of a breaker. No attempt is made to de-load the
breaker before it opens.
United Kingdom UK
United States of
America
US, USA
The USA sometimes requires different technical standards. They also use their
own system of units.
Voltage V
Electrical potential difference. U is used as an abbreviation for voltage in most of
Europe, Russia and China.
Voltage and
frequency
V & Hz
For certain controller actions, both the voltage and frequency must be within the
specified range. For example, for busbar OK, or to start synchronising a genset to
the busbar.
Voltage transformer VT
A transformer for the voltage measurements, so that the voltage at the controller is
within the controller's specifications.
10.2 Units
10.2.1 Units
The table below lists the units used in the documentation, as well as the US units where these are different. In the
documentation, the US units are given in brackets, for example, 80 °C (176 °F).
PPU 300 Commissioning guidelines 4189341106 UK
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