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RAYTECH Switzerland

Transformer type

Winding Measurement

Vector Group

Phase

HV Winding

LV Winding

A

H1-H0

X1-X0

YN-yn 0

B

H2-H0

X2-X0

C

H3-H0

X3-X0

A

H1-H0

X0-X2

YN-yn 2

B

H2-H0

X0-X3

C

H3-H0

X0-X1

A

H1-H0

X3-X0

YN-yn 4

B

H2-H0

X1-X0

C

H3-H0

X2-X0

A

H1-H0

X0-X1

YN-yn 6

B

H2-H0

X0-X2

C

H3-H0

X0-X3

A

H1-H0

X2-X0

YN-yn 8

B

H2-H0

X3-X0

C

H3-H0

X1-X0

A

H1-H0

X0-X3

YN-yn 10

B

H2-H0

X0-X1

C

H3-H0

X0-X2

A

H1-H0

X1-(X2X3)

YN-y 0

B

H2-H0

X2-(X1X3)

C

H3-H0

X3-(X1X2)

A

H1-H0

(X1X3)-X2

YN-y 2

B

H2-H0

(X1X2)-X3

C

H3-H0

(X2X3)-X1

A

H1-H0

X3-(X1X2)

YN-y 4

B

H2-H0

X1-(X2X3)

C

H3-H0

X2-(X1X3)

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Содержание TR-1P

Страница 1: ...estrasse 11 5620 Bremgarten Switzerland Tel 41 56 640 06 70 Fax 41 56 640 06 74 Single Phase Battery Operated Automatic Transformer Turns Ratiometer Test System Model TR 1 Model TR 1P Instruction Manu...

Страница 2: ...Contents 0 1 1 Safety Precautions 1 0 2 Uncrating Procedure 2 0 3 Introduction 3 0 4 Technical Specifications 4 0 5 Transformer Ratio Testing 5 0 7 Important note 8 Operating Instructions 6 0 9 Curre...

Страница 3: ...peration and use of this equipment SAFE OPERATION Only qualified knowledgeable persons should be permitted or attempt to operate this test equipment All test personnel should fully familiarize themsel...

Страница 4: ...the instrument to a Raytech Switzerland service department for service to ensure proper operation and that safety features are maintained Instruments which appear damaged or defective should be made...

Страница 5: ...accurate readings on site with laboratory precision The TR 1 TR 1P applies a preset voltage of 40 10 or 0 25 to 5 CT Mode vac 60Hz on the HIGH winding side of the transformer and measures back throug...

Страница 6: ...ATIO RANGE 0 8 4000 0 RESOLUTION 5 Digits ACCURACY Range 0 8 4000 0 08 with 40 Volt PT Mode Range 0 8 100 0 08 with 0 25 5V Auto CT mode TEMPERATURE Operating 10 C to 60 C Storage 20 C to 70 C CABLE S...

Страница 7: ...AYTECH Switzerland TR 1P FEATURES Same as above plus Panel mount printer TR 1 TR 1P OPTIONAL ITEMS Option TRO 101 Cable extension 10m Option TRO 106 Charging cable for cigarette lighter Option TRO 107...

Страница 8: ...king for shorted turns and incorrect settings of tap changers It is important to understand that the Nameplate Ratio on most transformers is the Voltage ratio Voltage in Voltage out and this Ratio is...

Страница 9: ...ally detected Transformer Turns Ratiometer uses Transformer Turns Ratiometer is very useful as a tool for investigating problems associated with the core the windings and the tap changer of transforme...

Страница 10: ...Do not push on screen Step by step Instructions Open the case Connect the measuring leads to the front panel black connector TwistLock Connect the test lead clips to the proper terminals of a transfo...

Страница 11: ...nly as a load will not guarantee a successful test The GO Will appear in the test screen No Ratio test can be performed however Press the Digipot down Wait for initialization and calibration pre test...

Страница 12: ...e displayed Therefore when testing Current transformers the H leads are connected to the X terminal of the Current Transformer In certain cases where the impedance inductance of the CT is lower than t...

Страница 13: ...s on the following pages are guidelines for connecting and testing three phase transformers Table Key VECTOR GROUP The vector group column is the IEC vector group coding The number indicates the phase...

Страница 14: ...X0 A H1 H0 X0 X2 YN yn 2 B H2 H0 X0 X3 C H3 H0 X0 X1 A H1 H0 X3 X0 YN yn 4 B H2 H0 X1 X0 C H3 H0 X2 X0 A H1 H0 X0 X1 YN yn 6 B H2 H0 X0 X2 C H3 H0 X0 X3 A H1 H0 X2 X0 YN yn 8 B H2 H0 X3 X0 C H3 H0 X1...

Страница 15: ...X1X2 X3 A H1 H0 X2 X1X3 YN y 8 B H2 H0 X3 X1X2 C H3 H0 X1 X2X3 A H1 H0 X1X2 X3 YN y 10 B H2 H0 X2X3 X1 C H3 H0 X1X3 X2 A H1 H3 X0 X2 YN zn 1 B H2 H1 X0 X3 C H3 H2 X0 X1 A H1 H3 X3 X0 YN zn 3 B H2 H1...

Страница 16: ...X3 C H3 H0 X3 X1 A H1 H0 X3 X2 YN d 3 B H2 H0 X1 X3 C H3 H0 X2 X1 A H1 H0 X3 X1 YN d 5 B H2 H0 X1 X2 C H3 H0 X2 X3 A H1 H0 X2 X1 YN d 7 B H2 H0 X3 X2 C H3 H0 X1 X3 A H1 H0 X2 X3 YN d 9 B H2 H0 X3 X1 C...

Страница 17: ...C H3 H2 X2 X3 A H1 H3 X2 X1 D d 8 B H2 H1 X3 X2 C H3 H2 X1 X3 A H1 H3 X2 X3 D d 10 B H2 H1 X3 X1 C H3 H2 X1 X2 A H1 H3 X1 X0 D yn 1 B H2 H1 X2 X0 C H3 H2 X3 X0 A H1 H3 X0 X2 D yn 3 B H2 H1 X0 X3 C H3...

Страница 18: ...H3 X1X3 X2 D y 3 B H2 H1 X1X2 X3 C H3 H2 X2X3 X1 A H1 H3 X3 X1X2 D y 5 B H2 H1 X1 X2X3 C H3 H2 X2 X1X3 A H1 H3 X2X3 X1 D y 7 B H2 H1 X1X3 X2 C H3 H2 X1X2 X3 A H1 H3 X2 X1X3 D y 9 B H2 H1 X3 X1X2 C H3...

Страница 19: ...2H3 X2 X0 D zn 8 B H2 H1H3 X3 X0 C H3 H1H2 X1 X0 A H1 H2H3 X0 X3 D zn 10 B H2 H1H3 X0 X1 C H3 H1H2 X0 X2 A H1 H2H3 X1 X0 Y yn 0 B H2 H1H3 X2 X0 C H3 H1H2 X3 X0 A H1 H2H3 X0 X2 Y yn 2 B H2 H1H3 X0 X3 C...

Страница 20: ...2 Y y 2 B H2 H1H3 X1X2 X3 C H3 H1H2 X2X3 X1 A H1 H2H3 X3 X1X2 Y y 4 B H2 H1H3 X1 X2X3 C H3 H1H2 X2 X1X3 A H1 H2H3 X2X3 X1 Y y 6 B H2 H1H3 X1X3 X2 C H3 H1H2 X1X2 X3 A H1 H2H3 X2 X1X3 Y y 8 B H2 H1H3 X3...

Страница 21: ...1 H2H3 X2 X0 Y zn 9 B H2 H1H3 X3 X0 C H3 H1H2 X1 X0 A H1 H2H3 X0 X3 Y zn 11 B H2 H1H3 X0 X1 C H3 H1H2 X0 X2 A H1 H2H3 X1 X2 Y d 1 B H2 H1H3 X2 X3 C H3 H1H2 X3 X1 A H1 H2H3 X3 X2 Y d 3 B H2 H1H3 X1 X3...

Страница 22: ...on of either Voltage or Turns Ratio from the displayed value on the TR 1 TR 1P The only requirement to use this calculation chart is that the connections to the transformer be made exactly as indicate...

Страница 23: ...hout written consent 22 RAYTECH Switzerland Example Measuring a Y D transformer The TR 1 Displays 12 73 The Turns Ratio is 12 73 2 3 8 48667 column 2 The Voltage Ratio is 12 73 2 sqrt3 14 6993 column...

Страница 24: ...4 Raytech Switzerland must always be given the opportunity to rectify a defect within a reasonable time The purchaser shall grant an adequate time within the test equipment shall be repaired 5 Raytech...

Страница 25: ...site preparation Exclusive remedies provided herein are the customer s sole and exclusive remedies Raytech Switzerland shall not be liable for any damages resulting from the use of this equipment whe...

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