Intelligent Transformer Ratio and Group Tester
Darui Electric recommends:
Intelligent Transformer Ratio and Group Tester Performance Features
1. Dual AC/DC power supply: self-adaptive with lithium battery or 220V AC charger.
2. One full charge can continuously measure the ratio and group of 100 transformers.
3. Intelligent charging management, remaining battery display, low battery alarm, automatic backlight adjustment to save power.
4. Full three-phase sine inverter power output, automatic output voltage adjustment, with soft start and soft stop functions, thus fast testing speed and high accuracy.
5. Testing functions for three-phase transformers, single-phase transformers, PTs, and Z-type transformers: ratio, group, and polarity.
6. Blind test function: can test ratio and group without knowing the high/low voltage connection modes.
7. CT ratio and polarity testing function.
8. Angle difference testing function for single-phase testing.
9. Tap positions can be tested up to 197.
10. Wide testing range, up to 10000.
11. High and low voltage reverse connection protection.
12. Output short circuit protection.
13. Non-volatile clock and date display; data storage includes local storage and USB storage, with local storage capacity of 500 test records, and local storage can be transferred to USB; USB storage format is Word, which can be directly edited and printed on a computer.
14. Thermal printer printing function, fast and silent.
15. Small size, light weight, easy to carry and use.
Safety Measures
1. Read this operation manual carefully before using this instrument.
2. The operator should have general knowledge of electrical equipment or instruments.
3. This instrument can be used indoors and outdoors, but avoid rain, corrosive gases, excessive dust, high temperature, and direct sunlight.
4. Avoid severe vibration of the instrument.
5. Maintenance, care, and adjustment should be performed by professionals.
6. The yellow, green, and red test clips correspond to phases A, B, and C of the transformer; do not connect incorrectly.
7. Do not reverse the high and low voltage cables.
8. When testing single-phase transformers, use only the yellow and green clips; do not use wrong ones, and unused test clips should be left hanging.
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
