What are Voltage Transducers?

Voltage transducers are measurement devices used to convert an electrical voltage from a primary circuit into a proportional and isolated output signal suitable for monitoring, control, and protection systems. By providing electrical isolation between the measured voltage and the signal output, these devices enable safe interfacing with control electronics in power and industrial applications.

The operation of a voltage transducer is based on internal scaling, isolation, and signal conditioning circuits that preserve the characteristics of the input voltage while delivering a standardized output. The choice of sensing method and internal electronics determines the device’s performance in terms of linearity, stability, and response. Key specifications define how the transducer interacts with the measured voltage and downstream control or measurement systems.

Key Specifications

• Type: The type defines whether the voltage transducer is designed to measure alternating voltage, direct voltage, or both. This distinction determines the internal sensing architecture, signal processing method, and frequency response, and is fundamental to selecting a transducer compatible with the measured electrical system.
• Input Voltage: Input voltage specifies the magnitude of voltage applied to the primary side of the transducer. It determines compatibility with the monitored circuit and affects insulation design, scaling accuracy, and safe operating limits.
• Output Voltage: Output voltage defines the voltage level of the transducer’s output signal that represents the measured input voltage. This parameter determines how the device interfaces with control, monitoring, or data acquisition electronics.
• Output Current: Output current specifies the current capability or current-based signal provided by the transducer. It defines load-driving capability and compatibility with external circuitry.
• Supply Voltage: Supply voltage defines the external power required for the internal operation of the voltage transducer. This parameter affects signal conditioning performance, operating stability, and integration with system power rails.
• Accuracy: Accuracy describes how closely the output signal represents the true value of the input voltage under defined conditions. It encompasses the effects of linearity, offset, and internal signal processing on measurement precision.

The Largest Database of Voltage Transducers

everything PE has listed Voltage Transducers from the leading manufacturers and made them searchable by specification. You can enter the key parameters and the search tool will scan catalogs from the leading manufacturers to identify products that meet your spec. Once you find Voltage Transducers that meet your requirements, you can view product information, download datasheets or request quotations. Quotation requests will be routed to the manufacturer of the product who will get back to you directly. The quotation will also be routed to distributors of the product in your region.