DNI-500

Reference-class inductive voltage divider

Accuracy class: 0.002

DNI-500 is an inductive voltage divider which produces an output voltage by dividing the AC voltage on its input by a division factor of 1:10 or 1:100.

Purpose

Conversion of an input AC voltage into an output voltage with a division factor of 1/10 and 1/100.

Application

The divider is a high-precision component of a test system typically installed in an industrial or metrological lab and used for testing, calibration, or verification of measuring instruments.

The divider can be used as part of:

	PCS-ME 3.0 (secondary standard of AC power)
	TTS-ME 61850 (transformer test system for calibration of digital transformers)

Advantages

	High accuracy
	High stability
	Galvanic isolation
	Output resistance Rout < 10 Ohm
	Input resistance (f = 40…70 Hz) > 1.5 MOhm

Accuracy specifications

In the mode of testing energy meters, power converters, and voltage converters

Voltage measurement range	Measurement error in the frequency range *
	40 ... 70 Hz		70 ... 500 Hz		500 ... 1000 Hz
	Ratio	Phase	Ratio	Phase	Ratio	Phase
16 ... 550 V (no more than 10.5 V/Hz)	0.0015 %	0.05 min	0.0025 %	0.05·(f/50) min	0,005 %	0,05·(f/50) мин

^*For a division factor of 1:100