Transformer Ratio Meter Dealers in Bangalore

• Brand Name: SIVANANDA MAKE
• Driven Type: Electric
• Color: Light Grey
• Condition: New
• Power Source: Electric
• Power Supply: 230 V
• Application: Winding Testing
• Frequency: 0-50Hz
• Temperature: Medium Temperature

Microprocessor based Automatic Ratio Meter is the rst automatic ratio meter in the country giving digital display of ratio directly. The instrument without any need of balancing precisely & accurately measures the voltage transformation ratio of single phase/3-phase delta or star, without neutral, Zig zag connected transformers, CTs & PTs, Power Transformers. Test Voltage The Instrument provides isolated test AC voltages of 8V,40V,80V, which enable the testing of both power transformers & Cts. Display LCD displays the ratio i.e. ratio of high voltage winding to low voltage winding at low ux in the core. Ratio is displayed in 0.8 – 12000 ** by auto ranging.   Principle of Operation This micro-processor based Instrument uses ratio-metric circuit in which the ratio of test specimen is compared with known internal standard. Protection Instrument is protected against any wrong connection across the transformer. Fast acting VBO trips in case of stepping up of test voltage

• Brand Name: Jasma
• Phase: Single Phase
• Display Type: Analog
• Frequency: 50 Hz
• Voltage: 220 - 240 V
• Temperature: 0 - 40 Degree C

The Eltel ATRM-200 Automatic Transformer Ratiometer measures the transformation ratio of transformers in a ratiometric circuit. As the measurement is conducted at low flux density, this measurement is equivalent to the turns ratio of the transformer. Besides measuring turns ratio, ATRM-200 also measures phase angle deviation between the tested windings. As a perfect transformer should show no phase difference between the input and output, the measured phase angle deviation is an indicator of possible shorted turns or poor core quality. The instrument excites the High Voltage winding (HV) of the test transformer and measures the output of the Low Voltage winding (LV) in a ratiometric circuit and displays the result on a 4½ digit LCD indicator . The ATRM-200 uses 36 volts at line frequency to excite the HV winding. The measurement is not instantaneous but is conducted over a period that is equal to a whole number of line frequency periods, thereby helps to eliminate line frequency interference.

• Weight: 15 kgs approx
• Power: 230V , +10%, -10%, 50Hz, 20V A or 115 +10%,- 10%, 60Hz
• Ratio Range: 0.8:1 to 2022.21:1 for TRM-150 0.8:1 to 2021:1 for TRM-200
• Accuracy: Better than +0.1%, - 0.1% of ratio at 120V test voltage
• Circuits: Transformer-arm bridge
• Test voltage: 120 V and 12 V AC at 1 A isolated
• Ratio Resolution: 0.0013% for TRM-150, 0.01% for TRM-200
• Deviation dials: Ratio deviation +0.55%, - 0.55% of ratio with a resolution of 0.02
• PhPhase angle deviation: 2 ranges of +0.55 CR, - 0.55 CR and + 5.5 CR, -5.5 CR,
• Dimensions: 450mm x 230mm x 200mm (LxBxH)

• Accuracy: 0.1% ± 2 digits
• Excitation Voltage: 100V and 240V

Micro-processor based, single phase, automatic transformer turns-ratio tester with highest measurement Accuracy up to 0.1% ± 2 digits ,turn Ratio Measurement up to 2000 and measurement of phase displacement between two windings from 0⁰ to 360⁰ with resolution of 0.1⁰.

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