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P a g e
OVR-15, 27 & 38 LV cabinet Instruction Manual
The RER615 is not intended for “hot swapping.” Read section 8.1 before removing
the relay from its case. When the RER615 is removed from its case, the current (I)
input terminals automatically short circuit the CT inputs. No card should be
removed from the RER615 in the
fi
eld. If removal is required, contact the ABB
Customer Service Group
The LV unit is shipped duly calibrated with the current /voltage correction factors (as
applicable) already applied and set in the RER615 relay. It is mandatory that these
correction factors are not modified after shipment.
RER615 Parameter Settings at the time of shipment from factory:
Other than th
e “Parameters to be maintained as default in RER615”
listed in Section-
13
& the rated reclosing cycle in DARREC1 functional block, rest all parameter settings
in RER615 are the “default settings” as per RER615 technical manual on ABB website.
5
S
TANDARD PRODUCTION TESTS
OVR-15, 27 & 38 recloser LV cabinet is tested thoroughly in factory before supplying. The standard
factory production tests include:
1.
Verification of wiring as per approved wiring diagram.
2. Electrical operation:
a. Close and Open in Local/Remote modes
b. Overcurrent response and automatic reclosing through primary injection.
3. Functional checks of manual controls (K69) & associated electrical & mechanical close block
4. Minimum Trip and Time-Current Test
5. No load mechanical operation test.
A standard routine test report with a summary of results is shipped as a part of documentation package.
6
I
NSTALLATION
The OVR-15, 27 & 38 recloser LV unit can be installed in a substation frame, pole-mounting frame, or can
be mounted into a customer supplied structure. However, it is required that in all of the mounting
methods the LV unit be vertical, levelled and securely fastened.
Before shipping from factory, the OVR-15, 27 & 38 recloser LV control cabinet are tested as a system in
factory. It is mandatory that during installation, the HV unit and LV control cabinet should be properly
matched by serial number mentioned on rating plates provided on each of them.
-
All metal mounting frames and structures must be commonly grounded to the
grounding grid at site. For proper operation of the electronic components, it is
mandatory that the total impedance of the grounding grid at site should be less than
one Ohm (1
Ω
)
-
It is also mandatory to ensure that all the grounding connections to the welded star
grounding pad inside the LV cabinet are always intact and secured.
-
Be careful not to bend the cable below a radius of 12 inches to avoid damage to itself.
Note
Important
Important
Note
