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Transformers are simple devices in concept, with two coils of insulated wire wound in close proximity on an iron core (windings). One wire (primary) is connected to a power source, such as the utility or a generator. The other wire (secondary) provides power, “transformed” in some way, to the load. Energy transfer from one wire to the other is through magnetic induction.READ MORE >>
The Raytech CT-T1 is a microprocessor-based Current Transformer Tester that measures CT excitation current, ratio, and winding polarity tests, all without having to switch the leads during testing.
This CT Tester is precision-made, fully automatic, portable, and built to stand up to the harsh environments of field testing.READ MORE >>
Used for maintenance and acceptance testing of electrical high voltage apparatus, Raytech USA equipment offers a unique design approach resulting in the development of highly regarded measuring instruments which have set new standards in the electrical testing industry.
High accuracy, and extremely durable, these portable instruments are housed in durable and rugged cases designed to withstand shocks, vibration, and mishandling associated with factory and field-testing.READ MORE >>
The Raytech WR50-12 Two Channel Winding Resistance Test Set is a 50 Amp, 2 Channel Winding Resistance Meter with Demagnetization and Discharge. The unit features a pure, filtered DC power source for the highest accuracy readings of any high current test system.READ MORE >>
The Raytech TR-Spy family of TTRs have quickly become recognized as the World's most advanced Three Phase Transformer Ratiometers.
A rugged, lightweight instrument that automatically measures Turns Ratio, Voltage Ratio, Excitation Current, Phase Relationship, and Phase Displacement, the Raytech TR-SPY Mark II Three Phase TTR (Transformer Turns Ratio) is a fully automatic instrument that can perform precision laboratory measurements, as well as function extremely well in the field for routine maintenance testing.READ MORE >>
Prior to modern digital electronic equipment, the Kelvin Bridge was used to measure winding resistance. Batteries, switches, galvanometers, ammeters and slidewire adjustments were used to obtain resistance measurements. With modern microprocessor based test equipment testing times have been greatly reduced. Direct readings are available from digital meters with automatic indications telling when a good measurement is available.READ MORE >>
The Raytech WR50-12 Two Channel Winding Resistance Test Set measures the resistance of highest inductivities in the shortest amount of time with its innovative charge and discharge circuits.Offering a simple one-button core demagnetization the Raytech WR50-12 Two Channel Winding Resistance Test Set can be used following a DC winding resistance test, or at any time.
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Raytech WR50-12 Two Channel Winding Resistance Test Set is designed for a high degree of accuracy for the measurement of very low resistance of inductive loads.
An electronic device that measures electrical resistance, ohmmeters come with different levels of sensitivity; some are designed to measure low-resistance materials, while others measure higher resistance.
An ohmmeter functions by passing a constant current or voltage though an object, such as voltage from a battery, and then measuring the resulting current with an ammeter after it passes through the resistance. The higher resistance the material has, the less current will pass through it. An ohmmeter is typically not used to measure resistance across an entire circuit, but rather through different parts of the circuit, although it can be used to test that a circuit is not broken. Components of a circuit can be removed and tested individually for resistance.
Raytech Micro Centurion II 200A Precision Micro-Ohm Meter (ductor) is a vital tool used in electrical troubleshooting. Allowing the measurement of extremely low resistance and the detection of minute resistance changes, the Micro-Ohm Meter offers a wide range of features for effective low resistance measurement.
The Raytech Micro Centurion II features a pure filtered DC power supply to ensure that it only gives clean power with minimal ripple. The Micro-Ohm Meter has a current output of 200 Amperes which allows it to measure resistance accurately from 0.01 Ω up to 5 Ω. An automatic internal diagnostics and calibration system allows for accuracy every time. You can attach the Raytech Micro Centurion II to a computer using its Centronics port or through its RS232 serial port for remote diagnostics. With rugged construction that allows the Micro-Ohm Meter to tolerate drops as high as 1 meter without damage, this ductor is suitable for field and industrial use.READ MORE >>