Cooper VR-32 - FAN COOLING ACCESSORY

5-3
S225-10-5
FAN COOLING ACCESSORY
Voltage regulators 250 kVA and larger can be equipped with
fan cooling (Figure 5-7). Fan cooling increases the load capac-
ity of the regulator by 25%. Special requirements are neces-
sary on regulators using fan cooling, therefore the regulator
must be ordered with fan cooling or with provisions for adding
fan cooling. Mounting cooling fans flush to the plate-type radia-
tor is accomplished by using T-bolts that secure the cooling fan
to the bank of radiators.
The automatic operation of the fan is controlled by a ther-
mometor having a thermal switch that will cycle the fan on or
off when the top-oil temperature reaches predetermined tem-
perature limits. The thermal switch has an upper limit
adjustable from 80
o
C to 110
o
C. The differential from make to
break is 6
o
c to 10
o
C. The thermal switch, when temperature
activated or deactivated, signals a relay which turns the fan on
or off. For full details, refer to 5225-10-1 Supplement 8.
DATA READER
The optional hand-held DATA READER allows the operator to
copy all of the Function Code parameters from the Meter Pac
for transfer to a personal computer. operation of the control is
not affected by the DATA READER.
The DATA READER can store data from 100 different Meter
Pac Controls before the memory must be purged.
Data Reader and Software Kit
The Data Reader and Soflware Kit includes the Data Reader,
the Data Reader to control cable, the Data Reader to PC
cable, and the Data Reader software. The non copy-protected
software operates on an IBM-type personal computer with
DOS 2.0 or higher operating system. The software allows the
operator to perform the following functions:
1. Upload the data from the Data Reader to the software data
base.
2. Erase the Data Reader memory.
3. Scan the data on the CRT.
4. Print reports.
5. Transfer data to another data base.
Data Reader Assembly
The Data Reader Assembly consists of the Data Reader and
the Data Reader to control cable.
Figure 5-6.
Data Reader and Software Kit.
Figure 5-7.
Fan Cooling accessory.