IB02602004E
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Instructional Literature
Effective: May 2008
Page
135
Instructions for the FP-6000 Protective Relay
Figure 31. FP-6000 Rear Terminal Designations.
6.4 Separated Draw-out Case Views with Internal
Callouts
The FP-6000 assembly is shown in Figure 32 prior to installation.
The chassis is shown as it is when withdrawn from the case.
When withdrawn, the make-before-break connectors within the
case will provide a short across the current transformers (CT)
inputs. This provides protection for the CTs in the event that the
chassis is withdrawn while the current transformers are under
power.
Figure 32. Case with Inner Chassis Withdrawn (Drawout).
When removing the chassis from the case, care must be taken as
many electronic components and circuits are exposed. Service
personnel should use electrostatic wrist straps to avoid damage
due to electrostatic discharge (ESD). Touching the metal chassis
prior to handling may reduce the risk of damage due to ESD.
Figure 33. Internal View of Case Connectors.
Figure 33 provides a view of the case with the chassis fully
withdrawn from the FP-6000 assembly. Several connectors can
be seen in the rear of the enclosure. These connectors interface
with their mating connectors of the Chassis. There are two card
edge connectors, TB1 and TB2 (See Figure 30 FP-6000 Rear
Connections). TB1 connector is primarily used for the ac/dc
power input and also relay contacts for relay RLY1 through RLY7,
TB2 is used for the contact inputs and the phase voltage inputs.
(See Figure 31 Rear Terminal Designations.)
1
Card Edge Connectors
2
J Connector TB3
3
Current Connectors
1
1
3
2
