CRMagnetics Catalog

127 / 162

127
Potential Transformers
G
PT3-1-45 and PT3-2-45
The PT3-1-45 and PT3-2-45 Series of potential transformers are designed to
give accurate measurement of medium voltage systems up to 5KV by stepping down
higher voltages to 120 VAC. Useful for monitoring and measuring larger power sys-
tems and distribution networks containing medium voltage loads.
TWO BUSHING (a) CATALOG NUMBERS
GROUP PRIMARY
VOLTAGE RATIO SECONDARY
VOLTAGE UNFUSED FUSES FUSE CLIPS ONLY (d) SWITCHGEAR STYLE
1 840 7:1 120 PT3-2-45-841 PT3-2-45-841FF PT3-2-45-841CC PT3-2-45-841SS
1 1200 10:1 120 PT3-2-45-122 PT3-2-45-122FF PT3-2-45-122CC PT3-2-45-122SS
1 2400 20:1 120 PT3-2-45-242 PT3-2-45-242FF PT3-2-45-242CC PT3-2-45-242SS
2 3300 30:1 110-50Hz PT3-2-45-332 PT3-2-45-332FF -----PT3-2-45-332CC PT3-2-45-332SS
2 4200 35:1 120 PT3-2-45-422 PT3-2-45-422FF PT3-2-45-422CC PT3-2-45-422SS
2 4800 40:1 120 PT3-2-45-482 PT3-2-45-482FF PT3-2-45-482CC PT3-2-45-482SS
One Bushing (b) CATALOG NUMBERS
GROUP PRIMARY
VOLTAGE RATIO SECONDARY
VOLTAGE
R FR
(c) FUSES FUSE CLIPS ONLY (d) SWITCHGEAR STYLE
4A 2400 20:1 120 190 PT3-1-45-242F PT3-1-45-242C PT3-1-45-242S
4B 4200 35:1 120 190 PT3-1-45-422F PT3-1-45-422C PT3-1-45-422S
AB 4800 40:1 120 190 PT3-1-45-482F PT3-1-45-482C PT3-1-45-482S
PART NUMBERS
UNFUSED
TWO BUSHING
ONE FUSE
ONE BUSHING
TWO FUSE
TWO BUSHING
H1
X2
X2 X1 X2 X1
X1
H1
H1 H2
H2
H2
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: E-mail:
The Professional
Energy Monitoring
Company
ISO 9001:2008QualityManagementSystem
M N TI
E145172
LR89403
Manufactured to meet the
requirements of ANSI/IEEE C57.13
Frequency
60 Hz.
Maximum System Voltage:
5.6kV, BIL 45kV.
Use with CR Magnetics Transducers
Accuracy Class:
0.3 WX, 0.6 MY,1,2Z at 100% rated voltage with 120V
based ANSI Burden
0.6 WX, 1.2 MY at 58% rated voltage with 69.3V based
on ANSI burden
Thermal Rating:
600 VA at 30° C . amb., 400 VA at 55°C. amb
Switch gear style is similar to fused style. No fuse or Fuse
clip is provided, but inserts for fuse clips are supplied.
Approximate weight 20 lbs., unfused
Regulatory Agencies :