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DIELECTRIC
STRENGTH TESTERS / HIPOTS

HIGH- VOLTAGE TESTERS

POWER SUPPLIES

CABLE TESTERS

INSULATION RESISTANCE TESTERS

OIL TESTERS

HOT STICKS / PHASING STICKS

BRIDGES

OHMMETERS

ELECTROMETER

MAGNET WIRE TESTER

SAFETY TESTER

AUTOMATIC HEATER
TEST SET

TRANSFORMER
RATIOMETER

INSULATION
SHEET TESTER

 
 

Transformer Ratiometer

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  • High Accuracy and
          Resolution
  • Measures Single and Three Phase Transformers

MODEL
TR-1A

SPECIFICATIONS

INPUT

120V, 60 Hz, single phase, approx. 0.5 A
removable line cord

TURNS RATIO FORMULA

% ratio = low voltage/high voltage x 100

RATIO MEASURING RANGE

0.001% to 100.000%

ACCURACY OF RATIO MEASUREMENT

±0.005% (of full scale)

RESOLUTION

0.001%

REPRODUCIBILITY

±0.002%

TRANSFORMER POLARITY INDICATION

forward or reversed direct reading

PHASE-ANGLE REFERENCE NUMBER (PARN) RANGE

2.5 lead to 2.5 lag

RESOLUTION OF PARN

0.05

NULL DETECTOR

solid-state, with ruggedized galvanometer readout

FUSING

input and output fused for maximum protection

SIZE

44W x 31D x 18H cm (23cm high with lid closed) approx.
(17W x 12D x 7H in) 9 in height with lid closed) approx.

WEIGHT

10kg (22lb) approx.

Line cord and test cables in separate carrying bag, complete with shoulder strap.