01301 Simpson, 01301 Datasheet - Page 2

• Manufacturer Part Number: 01301
• Description: Current Transformer
• Manufacturer: Simpson
• Type: Inductiver

Specifications of 01301

• Input Current: 500A
• Turns Ratio: 100
• Transformer Mounting: Chassis
• Secondary Current Nom: 5A
• Power Rating: 2VA
• Peak Reflow Compatible (260 C): No
• Terminal Type: Wire Leaded
• Mounting Type: Donut
• Accuracy: 0.5 %
• Current, Primary: 500 A
• Current, Ratio: 500:5
• Current, Secondary: 5 A
• Diameter, Inside: 2.06 in.
• Diameter, Outside: 3.56 in.
• Frequency Response: 50 to 400 Hz
• Function: Current
• Material, Stud: Brass
• Primary Type: Current
• Range, Measurement: 5 A
• Standards: UL and CSA Approved
• Technology: Inductive
• Thickness: 1.1 in.
• Transformer Type: Donut
• Dimensions: 27.94 mm W
• Number Of Outputs: 1
• Primary Voltage Rating: 500 V
• Secondary Voltage Rating: 5 V
• Termination Style: Round Crimp Terminals
• Current Ratio: 500
• Leaded Process Compatible: No
• Output Current: 5A
• Rohs Compliant: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With: The primary wire passing through the core, or by wrapping the secondary wires leading to the meter
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

220 VAC
POWER
SOURCE
Formula:
Where:
The ratio of the current transformer can be modified by adding more
primary turns to the transformer. By adding primary turns, the current
required to maintain five amps on the secondary is reduced.
Example:
1 Primary Turn
2 Primary Turns
4 Primary Turns
Donut Current Transformer Wiring Diagram
Primary Turn Ratio Modification
Typical Application
Nameplate
Nameplate
Nameplate
100:5
100:5
100:5
Ratio
Ratio
Ratio
A 100:5 current transformer designed for one primary
turn.
Ka = Kn x Nn / Na
Ka = Actual Transformer Ratio
Kn = Nameplate Transformer Ratio
Na = Actual Number of Primary Turns
Nn = Nameplate Number of Primary Turns
100:5
50:5
25:5
Ratio
Ratio
Ratio
Actual
Actual
Actual
DONUT
TRANSFORMER
AC
AMMETER
50 TO 100
AMPERE
LOAD
POWER
SOURCE
@300 AMPS
VAC
POLARITY
Formula:
Where:
Example:
(In practicality one turn is dropped from the secondary as a ratio cor-
rection factor.)
The ratio of the current transformer can be modified by altering the
number of secondary turns by forward or backwinding the secondary
lead through the window of the current transformer. By adding sec-
ondary turns, the same primary current will result in a decrease in sec-
ondary output. By subtracting turns, the same primary current will
result in greater secondary output.
Again using the 300:5 example adding five secondary turns will require
325 amps on the primary to maintain the 5 amp secondary output or
Deducting 5 secondary turns will only require 275 amps on the prima-
ry to maintain the 5 amp secondary output or
The above ratio modifications ar achieved in the following manner:
- To add secondary turns, the
white lead should be wound
through the CT from the side
opposite the polarity mark.
MARK
Secondary Turn Ratio Modification
SATELLITE WIRING WITH
DONUT AND CURRENT TRANSFORMER MODEL 186
5 AMP INPUT SIGNAL
Satellite Meter Wiring Diagram
X1
lp
ls
lp - Primary Current
ls - Secondary Current
NP - Number of Primary Turns
NS - Number of Secondary Turns
A 300:5 Current Transformer.
300p
325p
325p
5s
5s
5s
WHITE
LEAD
=
=
=
=
MODEL 186 5 AMPS
CAT# 01312
DONUT TRANSFORMER
CURRENT
RATIO 300/5
CAT#01300
Ns
Np
60s
1p
65s
1p
65s
1p
- To subtract secondary turns,
the white lead should be wound
through the CT from the same
as the polarity mark.
10 ACV SIGNAL
POLARITY
MARK
X1
300 AMPS
TO LOAD
MAXIMUM
500 FEET TO
METER
ACV. RECTIFIER TYPE
METER SCALE
MODIFIED TO
READ 300 AMPS
Revised 9/13/04
WHITE
LEAD