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2. Product Features ⑴. Transformer no-load loss measurement (automatic conversion from non-rated voltage to no-load loss at rated voltage)； ⑵, Transformer no-load current measurement (automatically process data to calculate the no-load current percentage) ； ⑶, Transformer load loss measurement (automatically converted to load loss at rated current and corrected temperature) ； ⑷, Transformer impedance measurement (automatic conversion to rated current and impedance voltage percentage at corrected temperature) ； ⑸, Transformer winding DC resistance measurement ； ⑹, Transformer ratio group measurement ； ⑺, Transformer power frequency withstand voltage test ； ⑻, Transformer induction (frequency multiplication) withstand voltage test ； ⑼, Transformer temperature rise test ； ⑽, partial discharge measurement ； ⑾, External induction voltage regulator control (no-load test), input/output voltage, current monitoring and over-current protection ； ⑿, Voltage/current transformer shift control ； ⒀, Single-phase voltage regulator control (power frequency test), input/output voltage monitoring and over-current protection ； ⒁, generator start, stop, voltage regulation control, induction test automatic timing function ； ⒂, generator output voltage, output current, output frequency monitoring and protection ； 3. Product parameters comply with standards ⑴, GB 1904.1 – 1996 "Power Transformers Part 1 General Provisions" ； ⑵, GB 1904.2 – 1996 "Temperature Rise of Power Transformer Part 2" ； ⑶, GB 1904.3 – 1996 "Power Transformer Part 3 Insulation Level and Insulation Test" ； ⑷, GB/T16927.1-1997 "High Voltage Test Technology Part 1 General Test Requirements" ； ⑸, GB50150 – 2006 "Electrical Equipment Handover Test Standard for Electrical Installation Engineering" ； ⑹, JB/T501 – 1991 "Power Transformer Test Guidelines" ； ⑺, GB/T6451 – 1995 "Technical Parameters and Requirements for Three-Phase Oil-immersed Power Transformers" ； ⑻, GB/T10228 – 1997 "Technical parameters and requirements for dry-type power transformers". 4. Technical parameters ⑴. Range of tested transformer: Voltage 220kV, capacity 360000kVA and below ； ⑵, input voltage: 0V ~ 450V50Hz; ⑶, voltage measurement range: 10V ~ 500V, accuracy 0.2% ； ⑷, current measurement range: 100mA～5A, accuracy 0.2% ； ⑸, Active power measurement accuracy: 0.2% ； ⑹, Digital display monitoring instrument accuracy: 0.5% ； ⑺, Temperature and humidity measurement accuracy: 0.5%⑻, current measurement range: 100mA～5A ； ⑼, CT expanded range: 1A ~ 2000A, accuracy 0.5‰⑽, PT extended range: 100V ~ 220kV, accuracy 0.5‰ 5. System configuration ⑴, transformer comprehensive test bench ； ⑵, Voltage/current transformer control cabinet (optional) ； ⑶, power control cabinet (optional) ； ⑷, System auxiliary cabinet (optional) ； ⑸, Transformer no-load characteristic tester (power analyzer) ； ⑹, Transformer DC resistance tester ； ⑺, Transformer ratio group tester ； ⑻, high voltage test transformer ； ⑼, medium frequency generator set ； ⑽, induction voltage regulator ； ⑾, temperature inspection instrument ； ⑿, temperature sensor ； ⒀, Partial discharge detection system (optional) ； ⒁, Lightning impact system (optional) ； ⒂, PLC controller ； ⒃, industrial computers and special software ； (17), video surveillance system.