Optical Current Transducer

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Optical Current Transducer

Faraday optical current sensor and support insulator

The Optical Current Transducer combines the Faraday effect optical current sensor head with a support insulator. The support insulator contains the embedded optical fibres linking the sensor to the terminal box at the base of the insulator.

The Optical Current Transducer can be applied to measure electrical current in both AC and DC networks and can be tailored to your network voltage level.

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FEATURES
  • Proven optical fibre Faraday effect sensor
  • Passive Sagnac interferometer based technology
  • Meets requirements for both revenue metering and protective relaying
  • Compatible with the patented ASP3I technology for best SNR and highest sampling rate
  • Wide range of insulation levels available based on lightweight, dry type, polymeric insulator technology
  • Redundant optical sensing coils available as option
  • Standard products available in a range of application voltages from 25kV to 500kV and nominal currents up to 4kA. Units for higher or lower voltage and/or current available on request.
  • Applicable to both AC and DC systems
  • Interfaces with the TMU10 range of merging units
Optical Current Transducer

Optical Current Transducer

Optical Sensor Head
Composite Insulator
Optical Sensor Head
Composite Insulator
Single Mode Optical Cable
Terminal Box
Optical Current Transducer
Single Mode Optical Cable
Single Mode Optical Cable Icon
Connects to Merging Unit
Terminal Box

TMU10 Terminal Merging Unit

A10 Optical Source Module

B10 Optical Spltter Module

D10 Optical Receiver Module

IEC61869 System Controller (F10-01)

Technical Specifications

General

Optical Fibre connection
4 x singlemode optical fibre (SMF-28)
Optical Connectors
4 x LC/APC
Weight (sensor only)
11 kg
IP Protection
IP66
Primary Terminal
Aluminum
Insulation
Lightweight, dry type, polymeric insulator. Contains no oil, gel or SF6

Mechanical – Sensor

Parameter
Symbol
Min
Typ
Max
Units
Weight
M
11
Kg
Dimensions
H
50
mm
L
450
mm
W
230
mm

Mechanical – Insulator

(500kV – other voltage ratings available on request)
Parameter
Symbol
Min
Typ
Max
Units
Weight
M
380
Kg
Static Load
SML
4000
mm
Maximum Load
MML
5600
mm

Electrical – Sensor

Parameter
Symbol
Min
Typ
Max
Units
Rated short-time thermal current(1 sec)
Ith
63
kA rms
Rated dynamic current (peak)
Idyn
158
kA
Maximum continuous current
Ith
2200
A rms

Electrical – Insulator

(500kV – other voltage ratings available on request)
Parameter
Symbol
Min
Typ
Max
Units
Lightning Impulse
V
1550
kV
Creepage Distance
18420
mm
Strike Distance
5010
mm
Chopped Impulse
1785
kV
Switching Impulse
1300
kV

Optical

Parameter
Symbol
Min
Typ
Max
Units
Wavelength
1535
nm
Output Power
P
-3
0
3
dBm
Loss Budget
Lb
0
6
dB

Performance

Parameter
Symbol
Min
Typ
Max
Units
Bandwidth
BW
mm

2001

kHz
Sample Rate
SR
mm

4002

Msps
Noise
In
mm

13

Arms
Accuracy
CLASS
mm

.24

Environmental

Parameter
Symbol
Min
Typ
Max
Units
Operating Temperature
Top
-50
85
C
Storage Temperature
Tst
-50
85
C
Humidity (storage)
100
%
Humidity (operating)
90
%
Vibration
1
G

Additional Details

1. Wider bandwidth available as an option
2. Higher sample rates available as option
3. Actual noise level dependent on optical sensor model attached
4. Different accuracy classes available as option

Learn more about H Nu™ components

Terminal Merging Unit (TMU10)

Terminal Merging Unit (TMU10)

Optical sensor merging unit

VIEW
ASP3I Optical Receiver Module (D10-01)

ASP3I Optical Receiver Module (D10-01)

Optical receiver and signal processor for highly accurate interferometric current measurements

VIEW
IEC61869 System Controller (F10-01)

IEC61869 System Controller (F10-01)

System controller for APS3I modules incorporating IEC61850/61869 interface

VIEW
Email: sales@hnu.com.au
Call us now: +61 408 297 447

H Nu Pty Ltd
Unit 4, 10 Kirrawee Rd, Gosford NSW 2250
sales@hnu.com.au
+6140 829 7447

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Optical Current Transducer