AC1075 • 75 Amp Current Transformer Low Cost 50/60Hz Current Transformers Applications • Sensing Overload Current • Ground fault detection • Metering • Analog to Digital Circuits
• Competitive pricing due to high volume production • Manufactured in an ISO-9001:2000, TS-16949:2002 and ISO-14001:2004 certified Talema facility • Fully RoHS compliant
Electrical Specifications @ 20°C ambient E lectrical S p ecificatio n s Primary Current 75A nom., 200A max. Turns Ratio 1000:1 nominal Volt per Amp Ratio at 75A for 100 ohm load 0.100 V/A Volt per Amp Ratio at 7.5A for 100 ohm load 0.0984 V/A DC Resistance at 20 °C 24 ohms Dielectric Withstanding Voltage (Hi-pot) 4KVrms Mechanical Specifications
E n viro n men tal S p ecificatio n s
Polycarbonate Epoxy Conforms to UL94-VO Pins Ø 1.0mm
Marking
TALEMA Date Code (W/Y) AC1075, Dot at start pin
Approximate Weight Tolerance
Storage Temperature Insulation Resistance
65.2 grams ±0.2mm Output Volts vs Input Current For various ohmic loads
Infinity 10K
1000
100
10
5K 2K
-200
0
200
400
600
800
1000
1200
1400
Percent ratio error in %
1K
Typical Excitation Curve (AC1060~AC1075)
500
10
100
200
100 50
1 10
100 Input Current in Amps
1000
Dimensions 15.90
38.10
Sec RMS Exciting Voltage in Volts
Output Voltage in Volts
100
-55 ° to +130 °C 100 megohms min.
%RE vs RL at Rated primary current (AC1075)
10000
Load resistance RL in ohms
C a se Encapsulant Flammibility Terminals
10
1
0.1 0.01
0.1
1
10
38.10
Sec RMS Exciting Current in mA
TALEMA INDIA W/Y AC1075
5±1mm
Ø14.60
2
3 33.00
1
Notes: 1) Unless requested, the terminating resistor and the one-turn primary are not supplied 2) Pin 3: Normally for mechanical support only but will be used on center tapped designs
Ø 1.016
1
2.85
10.16
I - Turn Primary
75A
3 75mA
RL
1W 7.5V 100 ohms
2
Germany: Int.+49 89 - 841 00-0 • Ireland: Int.+35 374 - 954 8666 • Czech Rep: Int.+420 377 - 338 351 • India: Int.+91 427 - 244 1325 http://www.talema-nuvotem.com (06-06)CT’s\AC1075