Product information
Introduction
Service Information S285-10-7
provides operating
instructions for Eaton's Cooper Power™ series VFI tester
device use in conjunction with Eaton's Cooper Power series
pad-mounted VFI switchgear. Before operating this device,
carefully read and understand the contents of this manual.
For additional information, refer to the following applicable
service information bulletins:
•
S285-10-1 VFI, Oil-Insulated, Vacuum Fault Interrupter;
Installation, Operation, and Maintenance Instructions
•
S285-10-2 VFI, SF6-Insulated, Vacuum Fault Interrupter;
Installation, Operation and Maintenance Instructions
•
S285-15-1 Shrubline VFI, Vacuum Fault Interrupter;
Installation, Operation and Maintenance Instructions
•
S285-75-1 Tri-Phase, TPG, and TPG with SCADA
Electronic Control Installation and Operation Instructions
Read this manual first
Read and understand the contents of this manual and
follow all locally approved procedures and safety practices
before 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, please contact
your Eaton representative.
Acceptance and initial inspection
This test set is in good condition at the factory and when
accepted by the carrier for shipment.
Upon receipt, inspect the test set thoroughly for damage
and loss of parts incurred during shipment. If damage or
missing parts are discovered, file a claim immediately with
the carrier.
Handling and storage
Be careful during handling and storage of the VFI tester to
minimize the possibility of damage. If the tester is to be
stored for any length of time prior to use, provide a clean,
dry storage area.
Quality standards
ISO 9001 Certified Quality Management System
Description
The VFI tester is a current injection device designed to
simulate Fault Current for verification of minimum trip
values and time current characteristics of Tri-Phase and
TPG electronic control boards utilized in VFI pad-mounted
switchgear.
Three internal flux-shift trippers enable confirmation of the
presence of sufficient levels of energy upon the control
board for operation of pad-mounted VFI flux-shift trippers.
The on-board flux-shift trippers also enable self-checking of
the VFI tester prior to general control testing. Further flux-
shift tripper capability enables verification of operation of
the flux-shift trippers within the VFI unit under test, external
to the VFI tester.
The tester has the capability to perform the following
operational tests:
•
Minimum-Trip Tests
•
Time Current Curve Characteristic Tests
•
Control Operation Test
•
Instantaneous Trip Test
•
Time-Current Curve Characteristics Modifier
•
Limited Testing of SCADA accessory board functions
including verification of the minimum trip multiplier
function and inrush restraint feature.
•
Battery Test
•
Flux-Shift Tripper Tests
Test settings are adjusted via a series of rotary, toggle, and
push button switches on the front panel of the tester.
Banana jacks on the front panel facilitate connection of
a Fluke or equivalent multimeter for verification of fault
current injection values. Simulated phase and ground fault
currents may be set in the range of 4-900 A by using the
millampere reading of the digital multimeter as directly
equivalent to reading the primary fault current in amperes.
A two-line, 16 character LCD display provides tester status,
TCC trip times, and battery test information.
The VFI tester is fan cooled and features thermal
protection circuitry which disables the tester if the internal
temperature exceeds 65 °C. Additional overload protection
is provided by an automatic time-out circuit which limits
testing to 5 minutes during unsupervised tests.
The VFI tester requires 120 VAC, single phase power for
operation. Inboard power is protected by a 8 A resettable
circuit breaker and is controlled by a large, illuminated
rocker type switch on the front panel. A three conductor
power cable is furnished with the tester.
Operating Instructions
MN285001EN December 2018
1
