Withstand Test Results; Module Flashover Service; Troubleshooting; Unit Will Not Close - Eaton COOPER POWER Series M Installation And Operation Instructions

SPEAR™ Single-Phase Recloser System

Withstand test results

The high-potential withstand tests provide information on
the dielectric condition of the recloser and the vacuum
integrity of the interrupters.
If the recloser passes the closed-contacts tests but fails
the open-contacts test, the cause is likely to be in the
interrupter assembly.
If a recloser fails the closed-contacts test, the cause is likely
to be a diminished electrical clearance or failed insulation.
If the recloser does not pass either the Open or Closed
High-Potential Test, contact an authorized service center or
your Eaton representative.

Module flashover service

If a SPEAR single-phase recloser module was exposed to an
external flashover, an inspection process is recommended
to assure proper operation of the recloser. Should the
SPEAR single-phase recloser exhibit external flashover
attributes (carbon tracking or discoloration), the following
procedure is recommended:
1. Bypass and remove the recloser from service as
described in this manual.
2. Confirm the dielectric strength of the recloser by
performing high-potential withstand test. Refer to the
High-potential withstand tests section of this manual.
3. Inspect the housing and lifting lugs for damage that
may affect electrical and/or mechanical performance.
If there is damage to either the housing or lifting lugs
they must be replaced or repaired.
4. Inspect module for damage to the terminals. Remove
any damaged terminals and replace.
5. Inspect module for damage to the module conductor
rods (0.63" diameter threaded rods on top and side of
module for affixing terminals). If there is damage to the
module rods, the module must be replaced. Contact an
authorized service center or your Eaton representative.
6. Inspect the operating rod for damage. Check the
module surface and major and minor sheds for
cracks, holes, and major chips. If damage is present,
the module must be replaced. Contact your Eaton
representative.
7 . If no damage is found, clean the module with isopropyl
alcohol and a scratch-free, nylon scouring pad to
remove any carbon deposit.
8. Before returning to service confirm electrical operation
by opening and closing the recloser with a control.
Confirm the dielectric strength of the recloser by
performing a high-potential withstand test. Refer to the
High-potential withstand tests section of this manual.
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INSTALLATION AND OPERATION INSTRUCTIONS MN280048EN June 2016

Troubleshooting

If the SPEAR single-phase recloser does not perform as
described in the Recloser Operation section of this manual,
the following information may assist in troubleshooting:

Unit will not close

Make sure the yellow manual operating handle is
● ●
completely up (returned to the CLOSED position).
Check all cables for proper connection.
● ●
Check the condition of the battery located in the
● ●
control cabinet. Refer to the Battery test and charging
procedures section of this manual.

Unit will not open

Check all cables for proper connection.
● ●
Check the condition of the battery located in the
● ●
control cabinet. Refer to the Battery test and charging
procedures section of this manual.