Current Transformers 7 – 0 Three Phase Transformers 8 – 0 Configuration Charts 8 – 0 Three Phase Transformer results 8 – 1 Warranty 9 – 0 All rights reserved. No portion may be reproduced without written consent RAYTECH Switzerland...
Failure to comply with these precautions and other specific warnings violates safety standards of design, manufacture, and intended use. Raytech Switzerland, assumes no liability for the operation and use of this equipment. SAFE OPERATION Only qualified knowledgeable persons should be permitted or attempt to operate this test equipment.
Page 4
UNCRATING: 2 – 0 Unpack your new TR-1 or TR-1P and check to see that you have the following items: TR-1 H & X Manual...
Page 5
Single Phase Transformer Turns Ratio Test systems. This system is designed for highly 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 through the LOW side of the transformer.
SPECIFICATIONS 4 – 0 MODEL: TR-1 & TR-1P SIZE: L: 270 mm (10.62”) W: 245 mm (9.68") H: 125 mm (4.87”) WEIGHT: 3.2 kg (7 lbs.) INPUT POWER: 100 to 240 Vac 50 / 60 Hz Autoranging TEST VOLTAGE: User Selectable: 40,10,5 and 0.25 to 5 vac...
Page 7
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 – Serial interface cable * Specifications are subject to improvement at anytime.
Page 8
For example: The High Side Winding may contain 940 Turns : Low Side Winding 440 Turns. Therefore: 3 Phase Transformers (of different configurations) the turns ratio & voltage ratio can be different. All rights reserved. No portion may be reproduced without written consent RAYTECH Switzerland...
IMPORTANT NOTE: Hooking up to a transformer: The TR-1 & TR-1P protect against a wrong hook-up to a transformer or testing a severely defective transformer. Every effort has been made to alert the operator when something is wrong. Negative (reverse polarity) hook up is also automatically detected.
The “H” leads are always connected to the highest number of turns on all transformers and the “X” Leads are always connected to the lowest number of turns. The TR-1 & TR-1P is a very clever system and will always check to make sure that this is done correctly.
The Ratiometer sense circuit can be checked by connecting the measuring lead clips of the TR-1 & TR-1P together in the following manner: H1 lead (Red Clip /Red wire) to X1 lead (Black Clip / Black wire) H0 lead (Red Clip / Red wire) to X0 lead (Black clip / Black wire) To avoid overload of the measuring instrument, the short circuit test does not start without a load.
Page 12
This basically means that the largest number of windings are on the “X” (low current) side of the current transformer. The TR-1 & TR-1P apply a test voltage from 1 …5 V to the “H” leads and measures back through the “X” leads. The “X” leads must always a have lower voltage than the “H”...
For example: D – Y, phase “A” would require H1 & H3 to be tested against X1 & X2-X3 Note: (X2-X3 are jumpered together). See charts on following pages: All rights reserved. No portion may be reproduced without written consent RAYTECH Switzerland...
Page 14
X0-X1 H3-H0 X0-X2 H1-H0 X1-(X2X3) YN-y 0 H2-H0 X2-(X1X3) H3-H0 X3-(X1X2) H1-H0 (X1X3)-X2 YN-y 2 H2-H0 (X1X2)-X3 H3-H0 (X2X3)-X1 H1-H0 X3-(X1X2) YN-y 4 H2-H0 X1-(X2X3) H3-H0 X2-(X1X3) All rights reserved. No portion may be reproduced without written consent RAYTECH Switzerland...
Page 15
X0-X2 H3-H2 X0-X3 H1-H3 X2-X0 YN-zn 7 H2-H1 X3-X0 H3-H2 X1-X0 H1-H3 X0-X3 YN-zn 9 H2-H1 X0-X1 H3-H2 X0-X2 H1-H3 X1-X0 YN-zn 11 H2-H1 X2-X0 H3-H2 X3-X0 All rights reserved. No portion may be reproduced without written consent RAYTECH Switzerland...
Page 16
X2-X1 H3-H0 X3-X2 H1-H3 X1-X3 D-d 0 H2-H1 X2-X1 H3-H2 X3-X2 H1-H3 X1-X2 D-d 2 H2-H1 X2-X3 H3-H2 X3-X1 H1-H3 X3-X2 D-d 4 H2-H1 X1-X3 H3-H2 X2-X1 All rights reserved. No portion may be reproduced without written consent RAYTECH Switzerland...
Page 17
X1-X0 H3-H2 X2-X0 H1-H3 X0-X1 D-yn 7 H2-H1 X0-X2 H3-H2 X0-X3 H1-H3 X2-X0 D-yn 9 H2-H1 X3-X0 H3-H2 X1-X0 H1-H3 X0-X3 D-yn 11 H2-H1 X0-X1 H3-H2 X0-X2 All rights reserved. No portion may be reproduced without written consent RAYTECH Switzerland...
Page 18
(X2X3)-X1 H3-H2 (X1X3)-X2 H1-(H2H3) X1-X0 D-zn 0 H2-(H1H3) X2-X0 H3-(H1H2) X3-X0 H1-(H2H3) X0-X2 D-zn 2 H2-(H1H3) X0-X3 H3-(H1H2) X0-X1 H1-(H2H3) X3-X0 D-zn 4 H2-(H1H3) X1-X0 H3-(H1H2) X2-X0 All rights reserved. No portion may be reproduced without written consent RAYTECH Switzerland...
Page 19
X1-X0 H3-(H1H2) X2-X0 H1-(H2H3) X0-X1 Y-yn 6 H2-(H1H3) X0-X2 H3-(H1H2) X0-X3 H1-(H2H3) X2-X0 Y-yn 8 H2-(H1H3) X3-X0 H3-(H1H2) X1-X0 H1-(H2H3) X0-X3 Y-yn 10 H2-(H1H3) X0-X1 H3-(H1H2) X0-X2 All rights reserved. No portion may be reproduced without written consent RAYTECH Switzerland...
Page 20
(X2X3)-X1 H3-(H1H2) (X1X3)-X2 H1-(H2H3) X1-X0 Y-zn 1 H2-(H1H3) X2-X0 H3-(H1H2) X3-X0 H1-(H2H3) X0-X2 Y-zn 3 H2-(H1H3) X0-X3 H3-(H1H2) X0-X1 H1-(H2H3) X3-X0 Y-zn 5 H2-(H1H3) X1-X0 H3-(H1H2) X2-X0 All rights reserved. No portion may be reproduced without written consent RAYTECH Switzerland...
Page 21
X1-X2 H3-(H1H2) X2-X3 H1-(H2H3) X2-X1 Y-d 7 H2-(H1H3) X3-X2 H3-(H1H2) X1-X3 H1-(H2H3) X2-X3 Y-d 9 H2-(H1H3) X3-X1 H3-(H1H2) X1-X2 H1-(H2H3) X1-X3 Y-d 11 H2-(H1H3) X2-X1 H3-(H1H2) X3-X2 All rights reserved. No portion may be reproduced without written consent RAYTECH Switzerland...
Voltage Ratio nor the actual Turns Ratio. A simple chart below is given to allow easy calculation 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 indicated in the previous charts (See pages 15 to 20).
Page 23
( column 2 ) The Voltage-Ratio is: 12.73 * 2 / sqrt3 = 14.6993 ( column 3 ) or Voltage-Ratio is: 8.48667 * sqrt3 = 14.6993 ( column 4 ) All rights reserved. No portion may be reproduced without written consent RAYTECH Switzerland...
WARRANTY 9 – 0 1. RAYTECH Switzerland shall at their option and expense, repair, replace or newly provide any parts or services that prove to be defective within the warranty limitation period- irrespective of the operating time of the test equipment provided that the cause of the defect occurred prior to the time at which the risk was passed.
Page 25
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 whether direct, indirect, special, incidental, or consequential damages, or whether based on contract, tort, or any other legal theory.
Need help?
Do you have a question about the TR-1P and is the answer not in the manual?
Questions and answers