Basler Electric DECS-100 - Manual (Page 47)

9287500991 Rev M DECS-100 Installation 4-13
GEN 1
GEN 2
CTB1
CTB2
DECS-100
CTB1
CTB2
DECS-100
0.1
0.1
CT
CT
LOAD CCC
ENABLE
CONTACT
05-19-00
D2880-16
Figure 4-11. Cross-Current (Reactive Differential) Connections
INSTALLATION FOR CE COMPLIANCE
The following paragraphs describe the mounting and wiring requirements for a CE (European
Community) compliant installation.
Mounting
The DECS-100 must be mounted inside a grounded, metal enclosure (conduit box). An access panel
should cover the opening for the front panel display.
Wiring
Wiring connected to the terminals listed below must be shielded. Each shield should be terminated to
ground on the outside of the conduit box.
• Current sensing terminals CT1 and CT2
• Sensing voltage terminals E1, E2, and E3
• Relay output terminals AL1 and AL2
• Var/Power Factor control contact input terminals 52J and 52K
• Parallel generator compensation terminals 52L and 52M
• Raise and lower contact input terminals 6U, 6D, and 7
• AC power input terminals 3, 4, and 5
• Accessory input voltage terminals A and B
• Voltage matching contact input terminals VM and VMC
Ferrite Clamps
Install one ferrite clamp, with the properties listed in Table 4–5, on the wires connected to the terminals
listed in the same row with two turns at the enclosure’s exit or inside the enclosure between 1 and 3
inches (25 and 76 mm) from the connector.
Table 4-5. Ferrite Clamp Specifications and Corresponding Wire Terminals
Clamp
Ferrite
Grade
Frequency Range Terminals
1 31 1 MHz – 300 MHz
AL1, AL2 – Alarm outputs
6D, 7, 6U – External Voltage Adjust
52J, 52K – Var/Power Factor Control