設置為50A或150V AC的三相電驛測試器
PTE-50-CET設備是一個通用的可攜式測試系統，具有三個輸出，用於測試單相和三相保護電驛。
該設備包括三個獨立的輸出通道，可以選擇電流或電壓。 這使得該裝置可以用作一個完整的單相設備（電壓、電流和它們之間的相位角），或者在通道同步的情況下，作為單相電源輸入的三相電流或三相電壓產生器。
該裝置特點在於體積小和堅固。 該設計採用了最新的現代數位微處理器技術，以實現功率、精度、低失真和動態性能方面無與倫比的輸出特性。 這項技術允許使用者進行電驛測試中所需的許多不同的特定功能，而不需要額外的附件。 所有的輸出信號都經過數位生成、放大，並由IGM ( Intelligent Generator Modules )進行內部控制，解釋從前面板接收的指令，以產生高度精確、穩定、低失真的輸出，與電壓供應無關。
該設備還允許選擇連接到電腦，以自動測試電驛或使用Windows相容軟體控制設備。 即使是設備的調整和校正也是通過軟體進行的，軟體隨設備一起提供，允許校正和/或調整輸出，而無需任何手動硬體設置（Closed Case Calibration）。 綜上所述，PTE-50-CET是一種提供保護電驛測試（手動或自動模式）、實驗室和/或現場測試所需的所有特性和功能的設備。
特點
- 可變三相電流高達3 x 50A或電壓高達3 x 150V。
- 可變相位角在0–359.9°之間（單相或三相）。
- 諧波選擇獨立於相位，高達7次諧波。
- 輸出功率： 3 x 100VA。
- 可逆輸出。
- 輸出是完全隔離的和電子化的。
- 動態能力。
- 完全可程式設計。
- 內建計時器，1 ms解析度。
- 尺寸： 200 x 442 x 327 mm/25 Kg 8 x 18 x 13 in./ 52 lb.
應用
- 三相保護電驛的試驗。
- 三相和單相過流和差動保護電驛的試驗。
- 可以作為一個完整的單相單元在電壓、電流和相位上使用，因為輸出是可逆的（V, I, j ）。
機型規格選擇
Three-phase Relay Test Set up to 50A or 150V AC.
The PTE-50-CET equipment is a universal, portable, test system with three outputs to test single and three phase protective relays.
The equipment comprises of three independent output channels that can be selected as current or voltage. This enables the unit to be used as a complete single-phase equipment (voltage, current, and phase angle between them) or, with channels synchronised, as a three phase current or three phase voltage generator from a single phase mains input.
The unit is extremely compact and rugged. The design incorporates the latest in modern digital microprocessor technology to achieve unbeatable output characteristics in terms of power, accuracy, low distortion, and dynamic capability. This technology allows users to test many different specific functions required in relay testing, without the need of additional accessories. All output signals are digitally generated, amplified, and internally controlled by the IGM’s (Intelligent Generator Modules), which interpret the orders received from the front panel to produce a highly accurate, stable, and low distorted output, independent of the voltage supply.
The equipment also allows optional connection to a computer for either automatic testing of relays or control of the equipment using Windows compatible software. Even the adjustment and calibration of the equipment is made by software, supplied with the units, which permits calibration and/or adjustments in the outputs, without any manual hardware setting. (Closed Case Calibration). In summary, the PTE-50-CET is an equipment which offers all the characteristics and functions needed for protective relay testing, in a manual or automatic mode, and in laboratory and/or for on site testing.
CHARACTERISTICS
- Variable three phase Current up to 3 x 50A or Voltage up to 3 x 150V.
- Variable phase angle between 0 – 359.9° (Single or three phase).
- Harmonic selection independent by phase, up to the 7th harmonic.
- Output power: 3 x 100VA.
- Reversible outputs.
- Outputs are fully isolated and electronic.
- Dynamic capability.
- Completely programmable.
- Built-in Timer, 1ms resolution.
- Dimensions: 200 x 442 x 327 mm/25 Kg 8 x 18 x 13 in./ 52 lb.
APPLICATIONS
- Testing of three phase motor protection relays.
- Testing of three and single phase overcurrent and differential protection relays.
- Can be used as a complete single phase unit in voltage, current, and phase as outputs are reversible (V, I, j ).