Woodward GCP-30 Series User Manual

Manual 37365A GCP-30 Series Packages - Genset Control
Page 28/179 © Woodward
Mains Current/Mains Power Measurement
Mains current measurement via mains CT
Parameter 23
Current transf.
mains 0000/x
Mains current transformer 5 to 7,000/{x} A
The input of the current transformer ratio is necessary for the indication and control
of the actual monitored value. The current transformers ratio should be selected so
at least 60% of the secondary current rating can be measured when the monitored
system is at 100% of operating capacity (i.e. at 100% of system capacity a 5A CT
should output 3A). If the current transformers are sized so that the percentage of
the output is lower, the loss of resolution may cause inaccuracies in the monitoring
and control functions and may affect the functionality of the control.
The control may be ordered with either ../1 A or ../5 A current transformer inputs.
The CT inputs will dictate how this parameter is displayed on the control. Informa-
tion about the current transformers inputs may be found on the unit data plate.
{x} = 1 A ....... GCP30x1B/xxx = Current transformer inputs rated for ../1 A
{x} = 5 A ....... GCP30x5B/xxx = Current transformer inputs rated for ../5 A

Woodward GCP-30 Series Specifications

General

Brand	Woodward
Model	GCP-30 Series
Category	Controller
Language	English