JYR Transformer Short Circuit Impedance Device

Technical Indicators:

The instrument comes with a channel DDS signal output as the excitation signal for frequency scanning; The signal output is a sine wave, and the signal output amplitude can be adjusted by software, with a large amplitude of ± 5V. The signal output impedance is 50 Ω

Two acquisition channels, one for collecting excitation signals and one for collecting response signals, are used to calculate the transfer function

The excitation channel measurement is a fixed range: ± 5V; the response channel has 8 ranges, which are automatically adjusted during the measurement process, and the large input signal is ± 25V

Quantization accuracy of acquisition channel: 12 bits

Large static difference in acquisition channel: 0.1%

Large storage capacity per channel: 64K samples

ZUI high sampling rate per channel: 20Msps

Input impedance of acquisition channel: 1M Ω

Sweep frequency measurement range: 1K-1MHz

Scanning method: Adopting a linear distribution scanning frequency measurement method

Scanning frequency accuracy: The frequency accuracy of the sine signal output by the signal source is not greater than 1%

Sweep frequency measurement frequency point: 1K-1MHz, with 1000 measurement points

Adopting Vittal original chassis

Complies with the national power industry standard: DL/T911-2004

JYR Transformer Short Circuit Impedance Device

Usage:

Instrument panel

The instrument panel is equipped with a power self-locking switch. When pressed, the power will turn on and the indicator light will turn on. When pressed and released, the indicator light will turn off

◇ The instrument model and name are printed above

◇ The name of the instrument manufacturer is printed below

There is a power socket installed on the instrument backplane

◇ Connect the USB communication port to the laptop computer

◇ Measurement signal port: The outer color of the K9 socket and the outer color of the measurement cable should be connected by matching the colors

Several commonly used detection and wiring methods for transformers

It mainly consists of a main measuring unit and a laptop, parallel three measuring cables, as well as measuring clips and grounding wires.

The main measurement unit system is connected to the test sample using a 50W high-frequency coaxial cable. The sweep signal is transmitted through the output port (excitation), and the signal clamp (orange) is injected into the test sample through the connecting cable; Obtain signals from the test sample using signal measurement clips (green) and transmit them to the response port via cables; Obtain synchronous reference signals from the injection point of the test sample through signal measurement, and transmit them to the input reference port via cable. The shielding layer between the test sample shell and the test cable must be reliably connected and grounded. Large transformers generally use the connection point between the iron core grounding sleeve lead and the oil tank as the common grounding point, and the transformer shell point is grounded

Product nickname:

Transformer winding deformation tester, transformer winding deformation detector, transformer winding deformation measuring instrument, transformer winding deformation analyzer

Technical Indicators:

The instrument comes with a channel DDS signal output as the excitation signal for frequency scanning; The signal output is a sine wave, and the signal output amplitude can be adjusted by software, with a large amplitude of ± 5V. The signal output impedance is 50 Ω

Two acquisition channels, one for collecting excitation signals and one for collecting response signals, are used to calculate the transfer function

The excitation channel measurement is a fixed range: ± 5V; the response channel has 8 ranges, which are automatically adjusted during the measurement process, and the large input signal is ± 25V

Quantization accuracy of acquisition channel: 12 bits