The BOHG-208 variable frequency transformer tester is designed for fully automatic testing of various protection, metering, TP, GIS bushing and other (CT and PT) transformer characteristics, suitable for laboratory and on-site testing
. Support detection of CT and PT (protection, metering, TP) steady-state and transient parameters
. Adopting advanced variable frequency power supply technology, the excitation inflection point voltage (volt ampere characteristic) can reach up to 40KV
. Comes with 0-150A current output and can perform CT secondary circuit channel integrity testing
. Without the need for external auxiliary equipment, all testing items can be completed on a single machine
. Adopting an intelligent controller, the operation is simple
. Large screen LCD, graphical display interface
. Automatically provide the (excitation) inflection point value according to the regulations
. High energy precision, supporting detection of 0.2S level transformers
. Automatically provide 5% and 10% error curves
. Can save 1000 sets of test data without losing it after power failure
. Supports USB flash drive data transfer, which can be read through a standard PC and generate WORD reports
. Compact and lightweight 9kg, very conducive to on-site testing
Transformer tester, variable frequency transformer tester, variable frequency transformer tester, transformer comprehensive tester, transformer characteristic tester
CT(Protection class, metering class, TP class)
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PT(Electromagnetic Voltage Transformer)
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Voltage current characteristic curve (excitation characteristic)
• Automatically provide inflection point values
Automatically provide error curves of 5% and 10%
• Ratio measurement
• Differential measurement
• Phase measurement (angle difference)
• Polarity judgment
• Measurement of secondary winding resistance
• Secondary actual load measurement
Secondary circuit channel integrity testing
• Iron core demagnetization
Accurate Limit Factor (ALF)
• Instrument security factor (FS)
• Quadratic time constant (Ts)
• Residual magnetism coefficient (Kr)
• Saturated and unsaturated inductors
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• Voltage current characteristic curve detection (magnetization curve)
• Ratio measurement
• Differential measurement
• Angle difference (phase) measurement
• Polarity judgment
• Automatically provide inflection point values
• Measurement of secondary winding resistance
• Secondary actual load measurement
• Iron core demagnetization
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term eye
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join number
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Working power supply
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AC220V±10%, 50Hz
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Device output
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0~180Vrms, 5Arms(15Apeak value)
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output current
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0-150A
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Voltage measurement accuracy
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±0.1%
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Secondary winding
resistance measurement
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range
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0~300Ω
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accuracy
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1%±1mΩ
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Secondary actual
Load measurement
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range
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0~300VA
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accuracy
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1%±0.1VA
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phase measurement
(Angle difference)
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accuracy
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±3min
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resolution
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0.3min
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CT
Variable ratio measurement
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range
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1-10000
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accuracy
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±0.05%
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PT
Variable ratio measurement
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range
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1-10000
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accuracy
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±0.1%
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work environment
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Temperature: -10℃ ~ 40℃Humidity: ≤ 90%Altitude: ≤ 1000m
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Size and weight
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Size:380mm × 240mm × 180mm, weight: ≤ 9Kg
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