Specifications

32
S
ection
4
Figure 4-5. Personal Computer to DVR
®
2000E Connections
DVR
®
2000E Connections for Typical Applications
Figures 4-6 through 4-9 illustrate typical applications using the DVR
®
2000E. Figure 4-6 shows an application
where the DVR
®
2000E is connected for three-phase voltage sensing. Figure 4-7 shows an application with single-
phase voltage sensing while Figure 4-8 illustrates an application with a single-phase generator.
Figure 4-9 illustrates the connection of two DVR
®
2000E devices used in a Cross-Current (Reactive Differential)
application. Note that the .1 ohm resistor shown may have to vary. When operating in parallel reactive differential
mode (cross current), attention must be paid to the use of the burden resistor shown in Figure 4-9. The burden
resistor should have a value approximately 10 times the cross current loop resistance for proper differential
operation. The value of 0.1 ohm is a suggested value. The volt-ampere (VA) capacity of the paralleling current
transformers should be considered after sizing the burden resistor.