$3399.0 Buy It Now or Best Offer
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Seller Store abtech_global
(4543) 100.0%,
Location: Southgate, Michigan
Ships to: US,
Item: 395614165369
Restocking Fee:No
Return shipping will be paid by:Buyer
All returns accepted:Returns Accepted
Item must be returned within:30 Days
Refund will be given as:Money back or replacement (buyer’s choice)
Megger:Megger
MPN:TTR100
Type:Transformer Turns Ratio Tester
The Following Items Are Included: Megger TTR100 Single & Three Phase Transformer Turns Ratio Tester (BC# 46605-L/T*) Megger Test Lead 35502-510 Megger Test Lead 35502-520 Megger Quick Start Guide AC Adapter/Charger Power Cord RS232 PC Interface Cable Hard Copy User Manual Case For Unit Carrying Case (G) BE SURE TO CHECK OUR EBAY STORE FOR OTHER ITEMS! This Item Has A Current Calibration! Megger TTR100 Single & Three Phase Transformer Turns Ratio TesterAn automatic handheld, battery operated transformer turns ratio test set used to measure the turns ratio, excitation current, phase displacement, dc resistance and polarity of windings in single- and threephase distribution transformers (tested phase by phase), potential & current transformers, and tapped transformers.Includes Carrying Case & Accessories As Listed Above! Working Condition: ExcellentCondition: RefurbishedCalibrated: YesWarranty: 1 YEAR WARRANTY Megger TTR100 Transformer Turns Ratio Test Set The Megger TTR100 is an automatic handheld, battery operated transformer turns ratio test set used to measure the turns ratio, excitation current, phase displacement, dc resistance and polarity of windings in single- and threephase distribution transformers (tested phase by phase), potential & current transformers, and tapped transformers. Deviations in the mentioned measurements will quickly indicate problems in transformer windings or in the magnetic core circuits. The unique design of the TTR100 allows the user to operate the test set while holding it in one hand. No other transformer test set offers this capability. It effectively eliminates the user from having the kneel or bend down to operate the instrument and speeds up testing time. Realizing the extreme environments in which the TTR100 must operate, special attention has been paid to making it extra rugged, with a high impact, shock resistant case, yet incredibly lightweight at 3.3 lb. (1.5 kg). It weights less than any other commercially available instrument on the market. Its rugged and robust design makes this instrument well suited for use in a variety of harsh environments. The TTR100 is particularly suited for testing in substations and transformer-manufacturing environments where testing single and three-phase transformers can be performed. The TTR100 provides reliable results, helping the user in determining the condition of the transformer under test. It features a high contrast LCD screen which can be seen in bright or ambient light. The TTR100 comes equipped with specially designed leads which provide the necessary flexibility needed in all weather conditions. This unit measures the highest turns ratio in the industry with an accuracy of 0.1% or better and with the lowest excitation voltage. No other instrument’s performance is comparable that is commercially available today. Another excellent feature of this TTR is the ability to accurately measure phase deviation (in minutes or centiradians) of the transformer primary versus secondary. This measurement is also useful in verifying phase errors in PTs and CTs. The TTR100 features special software capabilities. It comes equipped with sufficient onboard memory to store up to 200 test results (including test report header information) in the field for later retrieval, as well as 100 user-defined transformer settings. Test results can be printed on an optional serial printer whenever a hard copy is desired, or the data can be downloaded to a PC. Identification of individual test readings is also easily done. The system software allows entry of the transformer alphanumeric serial number, transformer type and tap information (numerical, alphabetical, or alpha-numerical) for each test performed. The TTR100 comes with a Windows® based software program that permits download of test data from the instrument to a PC database. Data stored in the database can be retrieved at a later date and test reports can be printed to assist in the preparation of management and/or analysis reports. These reports are easily transmitted via e-mail. Applications The proper operation of a transformer relies almost entirely on the electrical properties of its windings. To ensure continued proper operation, transformers are tested to verify that their electrical properties have not changed from design specifications. A TTR is an extremely useful instrument for testing transformer windings because it can locate several types of problems within a single- or a three-phase transformer. It is also ideal to use for testing in meter shops for the inspection of CTs and PTs. It can determine the no-load accuracy of CTs and PTs and also determine the need to further test faulty CTs and PTs. The TTR100 applies voltage, with voltage ratio being directly proportional to turns ratio, to the high-voltage winding of a transformer and accurately measures the resulting voltage from the low voltage winding. In addition to turns ratio, the unit measures excitation current, phase angle deviation between the high and low voltage windings, percent ratio error, dc winding resistance and polarity. Transformer Turns Ratio Transformer Turns Ratio is the ratio of the number of turns in the high voltage winding to that in the low voltage winding. A Transformer Turns Ratio Test Set such as the TTR100 can directly measure the ratio of single phase, as well as three phase transformers. Transformer ratio can change due to several factors, including physical damage from faults, deteriorated insulation, contamination and shipping damage. If a transformer ratio deviates more than 0.5 percent from the rated voltage ratio, it may not operate reliably. To measure small ratio changes such as this, the accuracy of a Megger TTR100 is needed. Excitation Current The TTR100 is capable of measuring exciting current by applying voltage to one of the transformers windings. An accurate measurement of exciting current can provide information about the condition of a transformer’s core. Unwanted circulating currents or unintentional grounds can affect the exciting current and indicate a problem. Phase Angle Deviation The phase angle deviation is the relationship between the voltage signal applied to the high voltage winding and the voltage signal extracted from the low voltage winding. The phase deviation between the high and low side of a transformer is generally very small. However, the phase deviation can change significantly if there is deterioration or damage in the transformer core. The TTR100 can measure this phase relationship with the resolution necessary to detect a problem. Additional information about a transformer’s electrical properties can be found in the IEEE Standard Test Code for Transformers, C57.12.90, or by contacting Megger’s technical support group. Winding Resistance Measuring the DC resistance of transformer windings will aid in identifying problems such as shorted or open windings, as well as loose connections. The Megger TTR100 can measure the DC resistance of both single phase and three phase transformer windings. Transformer Polarity Polarity of a distribution transformer becomes of interest in order to determine its proper connection within a power network. The Megger TTR100 will identify subtractive and additive polarity of the single-phase distribution transformers. Features and benefits Faster, easier handheld operation. User no longer has to kneel or bend down to operate the instrument. Powered by rechargeable battery, provides up to fifteen hours of field operation Report header information such as company name, substation name, transformer manufacturer, transformer ratio, operator, temperature and %RH can be entered and saved via the alphanumeric keypad Measures the widest turns ratio range in the industry (20,000:1) with the highest accuracy (±0.1%, 0.8 to 2000) at a low excitation voltage Enables the operator to enter the ratio of the transformer and all of its taps. This allows the operator to know immediately when a tap is outside the acceptable limits so that problem taps can be easily identified. Records ratio errors for bushing CTs to an accuracy of ±0.1% nameplate. This reduces the need for additional test equipment and improves set-up time. Measures the phase deviation (in minutes, degrees or centiradians) of the transformer primary versus secondary. This quickly indicates problems in the transformer such as partial shorted turns and core faults. This measurement is also useful in verifying phase errors in all types of PTs and CTs Perfect for meter shops, the TTR100 can be used for inspection purposes by using it to determine the no-load accuracy of most CTs and PTs. It also can be used to determine the need to further test potentially faulty CTs and PTs. The TTR100 is ideal for use by transformer manufacturers. Its unique testing procedures and storage capability allows an operator to set up and test single and three-phase transformers (with multiple tap changers and bushing CTs) in minimal time A “Quick Test” mode provides a fast determination of the turns ratio, excitation current, phase angle deviation, and winding resistance in single- and three-phase transformers and CTs. In addition, polarity is provided for CTs and single-phase transformers Displays all measured and calculated values for each test including ratio, excitation current, ratio error, phase angle deviation, transformer vector group, winding resistance and polarity thus providing comprehensive and conclusive data Automatic self-calibration for each test. Rugged, lightweight design ideally suited for a harsh field and substation environment. Three user selectable standards: ANSI, IEC, and Australian. Also meets IEC61010-1, CE, and IP54 requirements for protection against ingress of dust and water Six user selectable languages: English, French, German, Italian, Portuguese and Spanish. Specifications: Type of Power Rechargeable NiMH battery pack, 3.6 V dc, 3800 mAh Battery Life 15 hours of field operation Charger input voltage 100-250 V ac, 50/60 Hz ±2 Hz Unit can be operated while charging. Charging time is approximately three hours Optional charger source Optional inverter 12 V dc to 115 V ac for powering a charger from vehicle battery (non CE marked) Excitation voltage 8 V rms for testing distribution or power transformers, and PTs; 1.5 V ac RMS, or 8 V ac RMS for testing CTs. The excitation voltage is switched automatically if excitation current exceeds a preset value. Test frequency 55 Hz internally generated providing a universal 50/60 Hz test set Excitation current range 0 to 100 mA, 4-digit resolution Turns ratio range 8 V ac: 0.8 to 20,000, 5 digit resolution (for transformers and PT testing) 1.5 V ac: 5.0 to 2200, 5 digit resolution (for CT testing) Phase deviation range ±90º, 1 decimal point for the minutes display, 2 decimal points for the degree display, or for the centiradian display Winding resistance range 0 to 2000 Ω, 4 digit resolution Transformer vector group 1PH0 or 1PH6 Transformer polarity Additive or Subtractive Current (rms) accuracy ±(2% of reading + 1 digit) Phase deviation accuracy ±3 minutes Turns Ratio accuracy ±0.1% (0.8 to 2000) ±0.15% (2001 to 4000) ±0.20% (4001 to 10,000) ±0.25% (10,001 to 20.000) Winding resistance accuracy ±(10% of reading + 1 digit) for 10 Ω to 2000 Ω range ±(10% ±1 mΩ) for 10 mΩ to 9.99 Ω range ±(10% ±0.5 mΩ) for 0.1 mΩ to 9.99 mΩ range PC/Printer interface RS232C port, 9-pin, 57.6 Kbaud (19.2 Kbaud for the printer) Display full graphics LCD module, wide temperature range, 128 x 64 dots (21 characters by 8 lines) Test result storage Internal, nonvolatile memory for storing up to 200 sets of singlephase measured and calculated ratio, exciting current, phase, ratio error, winding resistance, polarity, vector group, plus header information (company, substation, transformer manufacturer, transformer rating, instrument serial number, temperature, relative humidity, and operator name) In addition, up to 100 user-defined transformer settings can be stored. Computer software Included software for downloading of data to a PC, data storage to database and report printout. Test Leads Supplied with one complete set of single-phase leads, 6 ft (1.8 m) in length Transformer winding phase relationship ANSI C57.12.70-1978 CEI/IEC 76-1:1993 and Publication 616:1978 AS-2374, Part 4-1982 (Australian Standard) Safety/EMS/Vibration Meets the requirements of IEC-1010-1, CE and ASTM D999.75 Temperature range Operating: -4º F to 131º F (-20º C to 55º C) Storage: -58º F to 140º F (-50º C to 60º C) Relative humidity Operating: 0 to 90% noncondensing Storage: 0 to 95% noncondensing Protective devices High voltage side shorting relays, transient voltage suppressors and gas surge voltage protectors Measuring time 8 to 20 seconds for a single-phase distribution transformer Measurement method ANSI/IEEE C57.12.90 Dimensions 9.5 H x 4.5 W x 1.875 D in. (241 H x 115 W x 48 D mm) Weight Approx. 3.3 lbs (1.5 kg), instrument only, without leads Protect instrument carrying case Neoprene case with carrying strap and attachable pouch for universal charger and 6 ft. (1.8 m) test leads, single-phase connection (two leads for the H winding and three leads for the secondary winding with tap) For full Megger TTR100 Transformer Turns Ratio Tester product specifications, please click here: Megger TTR100 Please check our Huge Inventory with savings of up to 80% off of retail on Cat5/5e/6 LAN Cable Certifiers and Fiber Optic OTDR’s, Fusion Splicers, CATV Meters, Fiber Optic Kits, Sources, Meters, Tools, Network Analyzers and much more. Here is a Link to our Ebay Test Equipment Store. All of our Test Equipment is backed with a Full Warranty and unbeatable customer support & service. Please don’t hesitate to contact us for a Quote on Something you don’t see in our inventory, sometimes we have items that may have not been listed or processed yet. 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