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UK Design and manufacture of wideband current measurement transformers and wideband voltage measurement transformers

Power current transformers for 50/60Hz fundamental

and harmonics to 10KHz

 

These transformers are designed for use at power frequencies where accurate recording of higher order harmonics is required

PowerCurrentPhoto
PowerCurrent

Power current transformers, illustrated with and without feet.

Nominal dimensions in the table below for the different ratings.

POWER CURRENT TRANSFORMER

(Available without feet on request)

Model

Number

Dimensions

Max Primary Current

Secondary Current

Ratio

Maximum load

Voltage sensitivity at maximum load

Price GBP

ID min

OD max

W max

S

CH max

mm

mm

mm

mm

mm

A rms

A rms

:1

Ohm

V/A

Note

 

 

 

 

 

 

 

 

 

(1)

(2)

M5002001

20

60

50

70

40

50

1

50

2.5

0.05

30.00

M5002005

20

60

50

70

40

50

5

10

0.1

0.01

30.00

M1013501

35

100

65

100

65

100

1

100

5

0.05

59.00

M1013505

35

100

65

100

65

100

5

20

0.2

0.01

59.00

M2013501

35

80

40

70

50

200

1

200

5

0.025

44.00

M2013505

35

80

40

70

50

200

5

40

0.2

0.005

44.00

M5015501

55

100

30

100

65

500

1

500

5

0.01

44.00

M1028001

80

125

30

100

75

1000

1

1000

10

0.01

54.00

M2021011

100

150

30

100

90

2000

1

2000

10

0.005

71.00

M3021211

120

185

30

150

105

3000

1

3000

15

0.005

94.00

Current ratio accuracy +/-2% over the range 50 Hz to 10 KHz, (50:1 and 10:1 ration accuracy +/- 3% at 50 Hz, +/-2% 150Hz to 10KHz.

 

 

Notes

(1) Sensitivity may be reduced by employing a lower value resistor. Sensitivity = Load/Ratio. Class 1 performance at 50/60Hz except in models M5002001 and M5002005 which have class 3 performance.

 

(2) Available at the equivalent price in other currencies at prevailing exchange rate, discount for six or more.

 

(3) The table above represent our most popular ratio and sizes, please contact us for other specifications not included in the table.

 

 

IMPORTANT:

Current transformers should not be operated with the secondary open circuit as very high terminal voltages may be present. Operation under this condition may permanently damage a transformer and constitute a shock hazard.

Updated    October 2017