斷路器開關動作時間測定器

CAT250 系列繼承了市場領先的 CAT Advanced 系列的所有性能和經驗。

CAT250 採用特有的觸控螢幕界面，大大節省了各類中/高壓斷路器測試準備和結果分析所需的時間。

測試結果還可以在 112 mm（4.4“）熱感式列表機（可選配件）上以表格和圖形的形式列印。

CAT250 系列斷路器開關動作時間測定器可與 DV Power線圈分析儀 SAT II 系列組合成一測試系統（通過 CAT250 觸控螢幕界面進行控制和測試），能夠執行下列應用：

• 最多可同時對12 個主接點（每相 4 個斷點）的開關動作時間測量，還包括預插入電阻（如果斷路器中存在）和 6 個輔助觸點。
• 測量預插入電阻（如果斷路器中存在）的電阻值。
• 評估斷路器兩極之間的同步性。
• 測量線圈電流、電壓和電阻（同時測量 3 個線圈 - 開或關的順序）。
• 通過圖形顯示電壓值來評估變電站所內電源的狀態。
• 測量斷路器運動機件的位移、接觸摩擦、超程、回彈、阻尼時間和平均速度。
• 記錄斷路器振動指紋。
• “第一次跳脫”測試。
• 靜態電阻測量。
• 動態電阻測量。
• 測量彈簧充電馬達的時間、電流和電壓（當用作 CAT 和 SAT 測試系統時，包括直流和交流電源電壓）。

內建微歐姆計（選配）可為動態和靜態電阻測量以及落地罐式斷路器的 BSG 動作時間測量提供大電流。

另外提供六個電壓類比通道有四個可選擇的電壓範圍（±1 V、±5 V、±60 V 和 ±300 V AC/DC）。它們用於監測 ：

• 測量線圈電阻（同時測量 3 個線圈 - 在打開或關閉過程）。
• 斷路器變電站所內電壓。
• 在 "第一次跳脫 "測試期間的直流和交流電流。。
• 用於 GIS BSG 測試的 -CT 二次側的电流。
• 其它可能相關的類比信號類型。

三個振動通道輸入可記錄斷路器的振動指紋，通過基於振動的分析對斷路器主接點進行非破壞性的評估。
三個感測器通道可測量斷路器運動機件的位移、接觸摩擦、超程、回彈、阻尼時間和平均速度。這些通用通道可連接類比或數位的感測器。
測試結果以表格和圖形形式列印在 112 mm（4.4 英寸）熱感式列表機（選購配件）上。

CAT 250
Circuit Breaker Analyzers & Timers

CAT250 series inherited all capabilities and experience collected from market leading CAT Advanced series.
CAT250 introduces unique touch screen interface designed to significantly save the time required for test preparation and results analysis of all types of medium- and high voltage circuit breakers.
Test results could also be printed on the 112 mm (4.4“) thermal printer (optional accessory) in tabular and graphical form.
The CAT250 series circuit breaker analyzers & timers can be coupled with DV Power Coil Analyzer SAT II series to create one test system (control and testing done with CAT250 touch screen interface) capable to perform the following list of applications:

• Simultaneous timing measurement of up to 12 main contacts (4 breaks per phase) including pre-insertion resistors (if present in the circuit breaker) and 6 auxiliary contacts
• Resistance measurement of the pre-insertion resistors (if present in the circuit breaker)
• Evaluation of synchronization between the circuit breaker poles
• Measurement of the coil currents, voltages and resistance (simultaneously for 3 coils – during open or close sequence)
• Evaluating the state of substation’s batteries by graphically showing the voltage value
• Measurement of displacement, contact wipe, over-travel, rebound, damping time and average velocity of the breaker’s moving parts
• Recording of circuit breaker vibration fingerprint
• “First trip” test
• Static resistance measurement
• Dynamic resistance measurement
• Measurement of spring-charging motor time, current and voltage (both DC and AC power supply voltage, when used as CAT & SAT test system)

Built-in micro-ohmmeter (optional) provides high current for dynamic and static resistance measurement, as well for BSG timing measurement of dead tank circuit breakers.
The additional six voltage analog channels have four selectable voltage ranges available (±1 V, ±5 V, ±60 V and ±300 V AC/DC). They are used to monitor:

• Measurement of coil resistance (simultaneously for 3 coils – during open or close sequence)
• Circuit-breaker substation battery voltage,
• DC and AC currents during the “First trip” test,
• CT secondary currents for BSG test on GIS
• Other types of analog signals that may be relevant.

Three vibration channel inputs record circuit breaker vibration fingerprints providing non-invasive assessment of the circuit breaker main contacts using vibration-based analysis.
Three transducer channels provide measuring displacement of the circuit breaker moving parts, contact wipe, over-travel, rebound, damping time and an average velocity. Either an analog or a digital transducer can be connected to these universal channels.
Test results are printed on the 112 mm (4.4 inch) thermal printer (optional accessory) in tabular and graphical form.

CAT 250
Circuit Breaker Analyzers & Timers