37001 Simpson, 37001 Datasheet - Page 64

Current Transducer

37001

Manufacturer Part Number
37001
Description
Current Transducer
Manufacturer
Simpson
Type
Inductiver
Datasheets

Specifications of 37001

Current Measuring Range Ac
0A To 50A
Supply Voltage Range Dc
21.6V To 26.4V
Sensor Output
Current
Frequency Max
60Hz
Transducer Output Current Dc Max
20mA
Length
68.32mm
Frequency Min
60Hz
Accuracy
0.5%
Frequency Response
60 Hz
Function
Current
Height
4.22 in.
Material, Stud
Brass
Output
Current
Primary Type
Current
Range, Measurement
50 A
Technology
Inductive
Width
0.071 in.
Equipment Type
Current Transducer
Range
0 - 50
Accuracy %
0.5%
Current Range Ac
0-50A
Current Range Dc
4-20mA
External Depth
59.94mm
Rohs Compliant
No
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With
Digital DC process panel indicators and controllers
Lead Free Status / Rohs Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
37001000000
Manufacturer:
LITTELFUSE/力特
Quantity:
20 000
C
6
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 sec-
ondary is reduced.
Example:
1 Primary Turn
2 Primary Turns
4 Primary Turns
Donut Current Transformer Wrapping Information
Donut Current Transformer Wrapping Information
Nameplate
Nameplate
Nameplate
Primary Turn Ratio Modification
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
Actual
Actual
Actual
Ratio
100:5
Ratio
Ratio
50:5
25:5
Formula:
Where:
Example:
(In practicality one turn is dropped from the secondary as a ratio correc-
tion 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 second-
ary turns, the same primary current will result in a decrease in second-
ary 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 primary
to maintain the 5 amp secondary output or
The above ratio modifications are achieved in the following manner:
Primary Turn Ratio Modification
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
Ns
Np
60s
1p
65s
1p
65s
1p

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