TRUE 3 PHASE TRANSFORMER TURNS RATIOMETER

The TTRU3 is an important tool for determining the mechanical condition of transformers. All ratio tests are performed in one instrument, with only one 3Ø lead-set connection. The TTRU3 utilizes the latest 7 inch (180 mm) color touch display, as well as an optional printer so you never lose your results. This is complimented with remote control which can be operated from your PC, as well as the ability to download results to a USB memory device.

• Guaranteed accuracy ±0.05% from -20°C to +50°C
• 3Ø test voltage - up to 250V
• 3Ø step up ratio (patent pending)
• Phase shifting & zig-zag transformers tested easily and accurately
• Smallest/lightest 3Ø test set on the market
• Fast 3Ø tests - less than 10 seconds

 TTRU3 Details

Trip Coil Tester

A variable DC voltage is needed to test a circuit breaker. Substation batteries should not be used since this entails considerable risk for testing personnel, testing equipment and also for the equipment being tested. The best way to ascertain whether or not solenoids and protective mechanisms are sluggish or working properly is to perform a test at minimum tripping voltage. The minimum trip voltage test is described in international and national standards such as IEC 62271-100, ANSI C37.09 etc.

B10E can be used to test breaker coils in this manner. It provides a ripple-free variable DC voltage that can easily accommodate a high, variable load.

• Reliable and stable power supply for circuit breaker testing
• Continuously variable 24-250 V AC or DC output
• Separate outputs for close coil, trip coil and spring charging motor voltage
• Direct triggering for minimum trip voltage testing
• Operate with a breaker analyzer for efficiency in testing sequence

B10E datasheet

In this Video you get an insight into the Megger TORKEL 900.

Overview:

• Batteries can be tested in service
• Dynamic discharge technology – full power at all voltages
• Safety in all details, e.g. detection of blocked airflow
• Real time monitoring during test
• Quick report
• Easily expandable for larger battery banks using TXL extra load units
• BVM cell monitor control integrated in the system

Transformer Ohmmeter

 The MTO106 transformer ohmmeter is an easy-to-use, line-operated instrument specifically designed for safe and accurate field measurement of winding resistance in smaller transmission and distribution transformers. It has dual channels with a wide measurement range and can accurately provide information about the vast majority of power transformers, reactors and instrument transformers. The test current can be manually set in five different ranges to fit transformers of various sizes. 

• Entry level transformer ohmmeter
• 2 channels with max 6 A current output
• ±0.25% measurement accuracy
• 48 V test voltage for fast saturation of transformers
• Multimeter type operation, intuitive and fast
• Safety through automatic, passive discharge circuitry
• True portability – compact size and low weight

The Megger Clamp on

Learn more about the DET14C and DET24C Clamp-on earth/ground testers from Megger.

DET14C and DET24C

1. Introduction to Megger and insulation testing above 1 kV

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