變壓器繞組變形分析儀

• 掃描頻率範圍和掃描時間
  用戶可以選擇FRA500的掃描範圍：0.1 Hz-25 MHz。 頻率範圍從20 Hz到2 MHz的典型測試掃描時間少於25秒。 可以在10秒內執行快速掃描測試，以確認電纜連接正確。
   
• 輸出電壓
  FRA500的測試電壓範圍可在0.2 Vpp至20 Vpp的範圍內以0.2 Vpp的步階進行編程。 這使用戶可以將測試電壓與其他製造商的設備執行的測試相對比。
   
• 動態範圍
  FRA500提供大於140 dB的動態範圍，測量精度為±0.5 db。 較高的動態範圍消除了雜訊的影響，且方便比較不同掃描。
   
• 電腦介面
  FRA500通過USB或藍牙無線控制。 藍牙功能允許測試人員與變壓器保持適當的距離，以提高安全性和工作效率。
   
• 內建電池 (可選購)
  提供內建電池 (可選購)，該電池最多可提供四個小時的電量。 FRA500所使用的是密封式鉛酸蓄電池（12V，7AH）。
   
• 自檢測試
  作為隨貨的附件。 用於對設備進行自檢的標準器（請參見下圖）。

在執行完整測試之後，如果單元一切正常，則將顯示以下圖譜：

• Sweep Frequency Range and Sweep Time
  The FRA500's sweep range is user selectable from 0.1 Hz - 25 MHz. A typical test sweep time, with frequency ranging from 20 Hz to 2 MHz, is less than 25 seconds. A quick sweep test can be performed in under 10 seconds to confirm proper cable connections.
   
• Output Voltages
  The FRA500's test voltage range is programmable from 0.2 Vpp to 20 Vpp in 0.2 Vpp steps. This enables the user to match the test voltage to tests performed by another manufacturer's device.
   
• Dynamic Ranges
  The FRA500 offers a dynamic range greater than 140 dB with a measurement accuracy of ±0.5 db. The higher dynamic range eliminates the effects of noise and facilitates the comparison of different sweeps.
   
• Computer Interfaces
  The FRA500 is computer-controlled via USB or wirelessly via Bluetooth. The Bluetooth feature allows test personnel to be at a comfortable distance from the transformer for increased safety and productivity.
   
• Optional Battery Backup
  An optional built-in battery backup is also available that can provide power for up to four hours. The FRA500 uses a sealed lead acid battery (12V, 7AH).
   
• Self-check test
  As included accessories, there is always verification box intended for the self-check of the unit (see picture below). 
  
  After the full test has been executed and if everything is fine with the unit, the following trace will be displayed: 
  

• Mains Power Supply
  Connection: according to IEC/EN60320-1; UL498, CSA 22.2
  Mains supply: 90 – 240 Vac, 50/60 Hz
  Input power: 50VA
  Fuse: T5L250V
   
• Measurement
  Sweep frequency range: 0,1 Hz – 25 MHz
  Sampling rate: 100 mega samples per second
  Sample points per sweep: 2 000 points per decade, 32 000 points total
  Total sweep time: less than 25 seconds (20Hz – 2MHz)
  Point spacing: log or linear
  Output voltage: 0.2 Vpp – 20 Vpp in 0.2 Vpp steps
  Gain accuracy: 0.5 dB above 50 dB
  Phase accuracy: 0.1 degree above 50 dB
  Input channels: 2x50 Ohm impedance
  Output channels: 1x50 Ohm impedance, short-circuit protected
   
• Interface
  Bluetooth
  USB
   
• Environmental Conditions
  Operating temperature:
  - 10 ºC – +55 ºC / 15 ºF – +122 ºF
  Storage temperature:
  - 30 ºC – +70 ºC / -22 ºF – +158 ºF
  Humidity: 90% RH @ 40 ºC (104ºF) non-condensing
  Altitude: 2 000m (6562 ft.)
   
• Dimensions and Weight
  Dimensions (W x H x D): x 290 x 150 mm / 13 x 11 x 6 in
  Weight: 4,5 kg / 10.0 lbs.
   
• Battery (optional)
  SLA 12V, 7Ah for 4 hours of continuous operation
   
• Applicable Standards
  Safety: LVD 2014/35/EU (CE Conform), Standards EN 61010-1:2010
  EMC: Directive 2014/30/EU (CE Conform), Standard EN 61326-1:2013