The Current-style AC Voltage Transformers are essentially a 1:1 primary to secondary ratio AC current transformer used to measure an AC primary voltage. The basic application design uses a current limiting resistor in series with the current transformer primary input. An I/V (current/ voltage) switching circuit is used to transform the current transformer secondary output to a signal proportional to the AC primary voltage that is at a level suitable for micro-processor-based applications. The small physical dimensions are designed specifically for integration into products which require exceptional accurate signal transformation with low phase shift while exposed to harsh environmental operating conditions.

Features:

• The mutual inductor primary to secondary design operates at a near zero load condition, thus providing a wide dynamic range, high precision and good linearity.
• Asymmetrical PIH mounting pattern.

Specifications:

• Input Frequency: 50Hz to 1000HZ
• Accuracy Class: 0.1, 0.2 (IEC 60044-1)
• Linearity Class: 0.1L (IEC 60044-1)
• Phase Shift @ rated current: < 30′
• RoHS Compliant

TV31 Models	Input/ Output	Accuracy/ Linearity	Secondary Burden
TV31B (UL Recognized E466650)	1mA/ 1mA 2mA/ 2mA	0.1, 0.2	≤ 500 ohms
TV31D	2mA/ 2mA	0.1, 0.2	≤ 150 ohms
TV31E	2mA/ 2mA	0.1, 0.2	≤ 150 ohms
TV31F	2mA/ 2mA	0.1, 0.2	≤ 200 ohms

Download TV31B0x Data Sheet (pdf 328kb)

Download TV31 Brochure (pdf 559kb)

Download Application Note 1:1 Current Style Voltage Transformer App Note #1508 (pdf 559kb)