
The TRF-250A is the battery-powered version of the TRF-250. Its battery offers approximately 3 hours of continuous use. The TRF-250A features a built-in charger that allows the unit to be used while charging.
The TRF-250A provides a test voltage of 250Vac, a wireless Bluetooth PC interface, and features a 44-key “QWERTY”-style membrane keyboard. All these features greatly improve the accuracy of the turns ratio readings, ease of operation, and reliability.
The TRF-250A determines the turns ratio of the transformer under test using the measurement method. The turns-ratio range is from 0.8 to 50,000 to 1. Transformer turns ratio, ?excitation current, and winding polarity are displayed on the built-in 128 x 64 pixels graphic LCD screen. The TRF-250A can be used as a standalone unit or can be computer-controlled.
- Battery-powered
- Ratio range: 0.8 – 50,000 : 1
- Capable of detecting 130 different 3-phase transformer types defined by ANSI, IEC, and Australian standards
- 4 test voltages: 4Vac, 40Vac, and 100Vac, and 250 Vac
- Phase angle and excitation current measurement
- Bluetooth and USB PC interfaces
- 4.5” wide thermal printer
TRF-250A是TRF-250的电池供电版本。它的电池可连续使用约3小时。TRF-250A配有内置充电器,可在充电时使用本机。
TRF-250A提供250Vac的测试电压,无线蓝牙PC接口,并配有44键“QWERTY”式薄膜键盘。所有这些特性提高了匝数比读数的准确性,操作简便性和可靠性。
TRF-250A使用测量方法确定被测变压器的匝数比。匝数比范围为0.8到50,000到1.变压器匝数比,激励电流和绕组极性显示在内置的128 x 64像素图形LCD屏幕上。TRF-250A可以作为独立单元使用,也可以由计算机控制。
- 电池供电
- 比例范围:0.8 – 50,000:1
- 能够检测由ANSI,IEC和澳大利亚标准定义的130种不同的三相变压器类型
- 4个测试电压:4Vac,40Vac和100Vac,以及250 Vac
- 相角和激励电流测量
- 蓝牙和USB PC接口
- 4.5“宽热敏打印机
全自动三相变压器变比测试仪(测试电压可达250VAC,A型内置电池,热敏打印机是标配)
产品功能和性能:
主要用来测量变压器绕组的变比、变比误差百分比、极性、相位角和励磁电流。
产品卖点:
1)三相一起接线,但只能一相一相地测量;采用ANSI/IEEE C57.12.90 测试方法;
2)变比测量范围: 0.8 to 50,000 :1;
3)能自动检测由ANSI、CEI/IEC、澳大利亚标准定义的130种不同的向量组别变压器;
4)有四种测试交流电压可选:4 Vac, 40 Vac, 100 Vac, 250 Vac;
5)可以Excel, XML, 和PDF 格式导出测试报告;
6)内置LTC 控制器;
7)内置热敏打印机(标配)
8)USB闪存,USB及蓝牙通讯接口;
9)单机或者电脑控制运行;
10)内置充电电池。
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