Term
Abbreviation
Explanation
Bus tie breaker
BTB
Physically disconnects two main busbars from each other, so that they operate as two
separate (split) busbars. Also reconnects split busbars so that they operate as one
busbar. A BUS TIE breaker controller can control a bus tie breaker.
BUS TIE breaker
controller
Controls and protects a bus tie breaker. The controller ensures that the two busbars are
synchronised before closing the bus tie breaker.
Canadian Electrical
Code
CEC
A standard published for the installation and maintenance of electrical equipment in
Canada.
Commissioning
The careful and systematic process that takes place after installation and before the
system is handed over to the operator. Commissioning must include checking and
adjusting the controller.
Common terminal
COM
This is generally connected to either a power source, or the supply return. See the
wiring examples for more information.
Configuration
Assigning input and output functions to terminals, and setting parameters, so that the
controller is suitable for the application where it is installed. Configuration also refers to
the arrangement of hardware and wiring.
Conformité
Européenne
CE
The product meets the legal requirements described in the applicable directive(s). All
products with CE marking have free access to markets in the European Economic Area
(EEA).
Connected
A generator is connected to the system if it is running, synchronised with the busbar,
and its breaker is closed.
Controller
DEIF equipment that measures system conditions and then uses outputs to make the
system respond appropriately.
Current transformer
CT
A transformer for a current measurement, so that the current at the controller is within
the controller's specifications.
CustomLogic
The ladder logic system included in the controller software, which can be configured for
customised responses to measured or calculated values.
Diesel generator
DG
A GENSET controller can control a diesel generator.
Digital input
DI
Terminals on a controller hardware module that the controller uses to measure a digital
input. A pre-configured digital input function or alarm can be assigned to the input.
Digital output
DO
Terminals on a controller hardware module that the controller uses to send a digital
output. A pre-configured digital output function can be assigned to the output.
Direct current
DC
Electromagnetic
compatibility
EMC
An equipment characteristic relating to the equipment's performance in the presence of
electromagnetic interference, as well as its emission of electromagnetic interference.
Electromagnetic
interference
EMI
The radiation emitted by the equipment as well as radiation that can affect the
performance of equipment.
Electrostatic
discharge
ESD
Emergency diesel
generator
EDG
An EMERGENCY genset controller can control an emergency diesel generator.
EMERGENCY genset
controller
Controls and protects the emergency genset (normally a diesel generator). This includes
control of the generator breaker and the tie breaker. If the system loses power, the
controller ensures that the emergency genset supplies power to the emergency busbar.
Emulation
A controller test environment, accessible from PICUS, that does not require live AC
power. A virtual operation mode, to simulate the effect of various real world actions.
Endian
Endian refers to how the order of bytes in a multi-byte value is perceived or acted upon.
It is the system of ordering the individual elements in a digital word in a computer’s
memory as well as describing the order of transmission of byte data over a digital link.
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