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変圧器 DV Power TRT30CのPDF マニュアルをオンラインで閲覧またはダウンロードできます。DV Power TRT30C 19 ページ。 Three-phase transformer, turns-ratio test instrument

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TRT30C

Available options in the AUTOTRANSFORMER menu are listed in Table 4.

Config

PH Displacement

displayed

Yna

displayed

Zna

displayed

AVGD

hidden

TRUE 3~ TEST hidden

SINGLE

hidden

Ya, Yna

Da, Za, Zna

If ratio deviation calculation is enabled, the following menu is displayed for entering the name plate voltages

and the tap changer positions:

Figure 3-1:

Input name plate

voltages values

If the name plate voltages are not entered, the TRT30C will perform the test and display the results, but it

will not calculate or display the turns ratio deviation. After the name plate voltages and tap changer

position(s) are entered, press

voltage.

Figure 3-2:

The test voltage

selection

The TRT30C generates both single-phase and true three-phase test voltages. When generating a single-

phase excitation voltage, the TRT30C supplies a single-phase excitation test voltage to each of the three

transformer primary windings in turn. The induced voltages across each of the corresponding unloaded

transformer windings are then measured. The ratio of these voltages is calculated and presented on the

display. It is repeated for all three phases.

M-T030CN-203-EN

Table 4: Available options in the autotransformer menu

Delta winding

Star winding

Star winding with neutral point

Zigzag

Zigzag with neutral point

Automatic vector group

detection

Only true three-phase test

Single-phase autotransformer

Table 5: Available autotransformer vector groups

Configuration

to confirm selection. The next display allows the selection of the test

ENTER

Comment

Phase by phase test using

single-phase voltage in turns

or true 3-phase test using 3-

phase voltage, depending on

particular vector group.

True 3-phase test using 3-

phase voltage

Single-phase test using

single-phase voltage

PH displacement

0-4-8

0-1-2,...11

Getting Started

Test mode

High Voltage Tap Changer

position

Low Voltage Tap Changer

position