JMTEST.COM • 800.353.3411 116 ELECTRICAL TEST TTR / WINDING RESISTANCE METERS TTR / WINDING RESISTANCE METERS MEGGER TTR20-1 AEMC 8505 WINDING RESISTANCE METER DIGITAL TRANSFORMER TURNS RATIOMETER · Single- and three-phase transformer testing · Fully automatic, fast, easy-to-use, robust, lightweight · Battery powered · Tests turns ratio, excitation current, and polarity · Simple, one-button operation · Quick-start guide on front panel The Megger TTR20-1 is an automatic, hand-held, battery operated transformer turns ratio test set. It is used to measure the turns ratio, excitation current and polarity of windings in single- and three-phase distribution and power transformers (tested phase by phase), potential and current transformers, and tapped transformers. The unique design of the TTR20-1 allows the user to operate the test set while holding it in one hand. It effectively eliminates the user from having to kneel or bend down to operate the instrument and speeds up testing time. Realizing the extreme environments in which the TTR20-1 must operate, special attention has been paid to making it extra rugged, with a high impact, shock resistant case, yet incredibly lightweight at a mere 870 g (1.9 lbs). Its design makes this instrument well suited for use in a variety of harsh environments. The TTR20-1 is particularly suited for testing in substations, transformer-manufacturing environments, and meter shops. It features a high-contrast, backlit LCD screen which can be seen in bright or ambient light. This unit measures a high turns ratio of 10,000:1 accurately with the lowest excitation voltage. The excellent repeatability of the TTR20-1 helps the users to determine the condition of transformers under test. It is designed for simple, one button operation with the measured results displayed directly on the easy to read LCD or printed to the optional printer. Standard Accessories Include: Combined test leads, “X/H” winding, 1.8 m (6 ft), Instruction manual Dimensions: 240 H x 115 W x 50 D mm (9.5 H x 4.5 W x 1.9 D in.) Weight: Approximately 1.3 kg (2.8 lb), including leads Standard Accessories Include: Cable assembly, With C-clamps for X (low-voltage) winding, 10 ft (3 m) [2], With spring clips for H (high-voltage) winding, 13 ft (4 m) [2], All cables are permanently connected to the test set, Instruction manual Dimensions: 13 X 9.5 X 7” Weight: 19 lbs ORDER # DESCRIPTION PRICE MEG-TTR20-1 Unit with Standard Accessories CALL CALIBRATION 25% OFF (NEW PURCHASE) $212.62 ORDER # DESCRIPTION PRICE MEG-550005B Unit with Standard Accessories $7,485.00 CALIBRATION 25% OFF (NEW PURCHASE) $212.62 Accessories 550030 Auxiliary Transformer; Extends Ratio Range to 329.99 for 550005 $7,110.00 550050 Calibration Reference Transformer for 550005 $6,900.00 ORDER # DESCRIPTION PRICE AEMC-8505 Unit with Standard Accessories CALL MEGGER TTR 550005B HAND-CRANKED WINDING RESISTANCE METER • Used for testing single phase power and distribution transformers • Design based on precision bridge measuring technique • Unmatched accuracy (±0.1%) in a portable design The Quick Tester Model 8505 is a hand-held instrument for performing quick, basic integrity tests on all transformers and capacitors used by electrical utilities. The Model 8505 verifies transformer winding continuity without requiring a full transformer ratio test. A single user can check a shipment of incoming transformers. Any units that have a defective coil can be quickly pinpointed and turned around for repair. The instrument provides simple, single-button operation whereby the user only needs to make the proper connections and push a button. Test results are clearly indicated by bright LEDs and (when applicable) a buzzer. The instrument includes captive cables with safety clips, a test probe, built-in fuse protection, and operates on four AA batteries. NEW **PRICES ARE SUBJECT TO CHANGE**
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