Control cable
The control cable is fabricated with connectors which mate
with the female receptacle of the recloser on one end, and the
male receptacle of the control or junction box on the other end.
ote:N The control cable must be supported along its length
to prevent repeated movement due to wind or other
outside forces which can damage the cable.
Maximum control cable length is determined by the recloser
type. See Table 3 for available Form 4D recloser control
cable lengths for Eaton’s Cooper Power series reclosers.
IMPORTANT
All external inputs to the Form 4D recloser control must
be routed within 8 inches of their corresponding ground.
During a surge, a potential of approximately 1.5 kV per
foot can develop in the conductors. Differences between
conductor and ground path lengths can add additional
stress to the control components in the event of a
power surge.
Table 3. Available Form 4D control cable lengths for
Eaton’s Cooper Power series reclosers
Recloser type Gauge
Length
(Meters) Length (Feet)
WE, WVE27, WVE38X, VWE,
VWVE27, VWVE38X;
Auxiliary-Powered NOVA15,
NOVA27, and NOVA38
18
16
14
24.1 (maximum)
24.4 to 38
38.4 to 61
79 (maximum)
80 to 125
126 to 200
VSA12, VSA12B, VSA16, VSA20,
VSA20A, VSO12, VSO16
18
16
14
3.4 to 6
6.4 to 10.7
11 to 15.25
11 to 20
21 to 35
36 to 50
Control-Powered NOVA15,
NOVA27, and NOVA38
16 3.4 to 38 11 to 125
Grounding the control
The control cabinet must be grounded. A grounding
connector on the underside of the cabinet will accommodate
No. 14 solid through No. 4 stranded conductors.
Suggested methods for grounding the control and recloser
are shown in Figures 12 and 13.
Figure 12 illustrates grounding methods for 4-wire multi-
grounded systems with local supply voltage transformer.
Figure 13 illustrates grounding methods for 4-wire multi-
grounded systems with remote supply voltage transformer
(within one-pole span).
For effective surge protection, all control and power
conductors for the Form 4D control must be routed parallel
to a corresponding ground path. For example, the AC power
supply for the control should be parallel to and equal in length
to the transformer ground path. The control cable should be
parallel to and routed close to the recloser ground path.
Grounding with a local supply voltage
transformer; 4-wire multi-grounded
Installation of a Form 4D pole-mount recloser control with a
local supply voltage transformer must include the following:
Protection of the recloser bushings and the supplying
transformer with lightning arresters.
Grounding of the recloser head and tank.
Grounding of the transformer tank.
Grounding of the control cabinet.
Grounding of the SCADA equipment.
IMPORTANT
All external inputs to the Form 4D recloser control
must be routed within 8 inches of their corresponding
ground. During a surge, a potential of approximately
1.5 kV per foot can develop in the conductors.
Differences between conductor and ground path lengths
can add additional stress to the control components in
the event of a power surge.
4-Wire Multi-Grounded Systems
IMPORTANT
In pole-mounted applications, a ground connection
must be made between the recloser, transformer,
recloser control, and SCADA equipment for proper
protection of the equipment. The pole ground must
be sized per local utility practices to minimize the
impedance between the recloser and the control.
15OPERATION INSTRUCTIONS MN280049EN September 2017
Form 4D Microprocessor-based pole-mount recloser control installation and operation instructions
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