TR-2100 User Manual  2 
Triggered Records 
When an abnormal event is detected, the analogue inputs and the digital switch data are 
stored in the TR-2100's memory. The stored data includes a period of time starting before 
the event occurs, until after conditions have returned to normal. This data frame constitutes a 
data record that may be printed in a graphical form with some initial measurements of the 
transient event. 
 
Loggers 
The input voltages and currents to the TR-2100 are recorded as a maximum, minimum and 
average RMS value every minute. The maximum, minimum and average frequency of two 
selected channels is also recorded. The TR-2100 is fitted with a large hard drive and this log 
will save data for 52 weeks before the data is overwritten. Selected blocks of data can be 
downloaded from the TR-2100 for graphical display. 
 
As an option, all the inputs values can be saved every other cycle (1/2 the system line 
frequency) in a disturbance logger. This provides a continuous record for the previous 2 
weeks. Harmonic, imbalance and energy data are also recorded in separate logs. These can 
be recovered separately or together. 
 
Power Quality Monitor 
The TR-2100 can also record the harmonic profile of voltage or current inputs over a set 
interval. This is used to measure trends with time or compare harmonic distortion at 
different locations. There are a number of features as part of Display Station that allow 
harmonic and other power quality data to be viewed. 
 
Voltage dips can be classified by depth and duration to provide a profile of substation 
performance. This can be used to compare performance at different sites, and show trends 
with time. 
 
The TR-2100 has a sensitive THD trigger mode that allows very subtle voltage distortions to 
be recorded, which would otherwise be missed using normal triggering methods. This can 
indicate progressive faults before they cause a serious problem. 
 
Transducers 
The TR-2100 computes a wide range of values from the recorded voltages and currents. 
External transducers may be connected to the TR-2100 to extend the range of functions. 
These could include pressure, temperature & position etc.