Product information
Introduction
Service Information
MN280051EN
provides installation
instructions, operation information, and testing procedures
for Cooper Power series single-phase reclosers from Eaton.
Before installing and operating this recloser, carefully read
and understand the contents of this manual.
The information contained in this manual is organized into
the following major categories:
Safety Information, Product
Information, Ratings and Specifications, Dimensions
and Weights, Installation Procedure, Operation, and
Maintenance Information
. Refer to table of contents for
page numbers.
Read this manual first
Read and understand the contents of this manual and follow
all locally approved procedures and safety practices before
installing or operating this equipment.
Additional information
These instructions cannot cover all details or vari ations
in the equipment, procedures, or process described, nor
provide directions for meeting every possible contin gency
during installation, operation, or maintenance. When
additional information is desired to satisfy a problem
not cov ered sufficiently for the user’s purpose, contact
your Eaton.
Acceptance and initial inspection
Each recloser is completely assembled, inspected, tested,
and adjusted at the factory and is filled to the correct level
with insulating oil. It is in good condition when accepted by
the carrier for shipment. Upon receipt of a recloser:
1. Inspect the recloser thoroughly for damage and/
or loss of parts or oil incurred during shipment. If
damage or loss is discovered, file a claim with the
carrier immediately.
2. Check for oil leakage and tighten all bolts that may
have loosened during shipment, especially the bolts
attaching the head to the tank.
Handling and storage
If the recloser is to be stored for an appreciable period of
time before installation, provide a clean, dry storage area.
Locate the recloser so as to minimize the possibility of
mechanical damage, particularly to the bushings.
Standards
Eaton’s Cooper Power series reclosers are designed
and tested in accordance with the following standards:
ANSI/IEEE C37.60-1981 and IEEE Std C37.85™-1989
standard and ANSI Guide C37.61-1973.
Quality standards
ISO 9001 Certified Quality Management System
Description of operation
Reclosers in the E, H, and L groups (see cover photo)
are self-contained, hydraulically controlled devices that
sense and interrupt fault currents on single-phase lines
of an electrical power distribution system. If the fault is
temporary, the recloser automatically recloses and restores
service. If the fault is permanent, the recloser locks open
after one to four operations, depending upon its setting.
Automatic resetting of this device enables it to distinguish
between permanent and temporary faults. Thus, if a fault
is temporary, the recloser resets and is then ready for a
complete reclosing sequence should another fault occur.
Operating sequences of the recloser can be all fast, all
delayed, or a combination of fast followed by delayed
operations. Further, any one of up to three delay curves
(depending upon recloser type) can be used to assure
coordination with other reclosers or protective devices.
On coordinated systems, fast recloser operations (“A” curve)
are used to clear temporary fault currents before branch-line
fuses are damaged. Subsequent delayed openings (see
Figure 1) allow time for fault currents to be cleared by
branch-line fuses. Outages caused by permanent faults are
thereby confined to shorter sections of line.
Tripping is initiated by a series-connected coil. Current-carrying
and interrupting capacities vary with the operating coil’s
rating, which is selected to meet circuit requirements. A
non-reclosing feature, standard on all Eaton’s Cooper Power
series reclosers, is set with a hotstick-operated lever for
one operation to lockout without removing the recloser
from service.
1
Types E, 4E, V4E, H, 4H, V4H, L, and V4L single-phase recloser installation and operation instructions
OPERATION INSTRUCTIONS
MN280051EN May 2017
