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每次測試前必須重置任何跳閘。在每次過載曲線測試之前，立即短接緊急重啟終端，以確保使用的熱容量為零。否則會縮短行程時間。注入適當振幅的電流，以獲得所示值，并驗證跳閘時間。電機負載可在：A2計量數(shù)據(jù)\電流計量3中查看。使用的熱容量和預計跳閘時間可參見：A1 STATUS \ MOTOR STATUS。無功和視在功率規(guī)格為Iavg<2×CT時√3×2×CT×VT×VT滿量程的±1%。執(zhí)行以下步驟以驗證準確性。1.更改以下設(shè)置點：S2系統(tǒng)設(shè)置\電流傳感\(zhòng)相位CT初級：1000 S2系統(tǒng)設(shè)置/電壓傳感\(zhòng) VT連接類型：Y型S2系統(tǒng)設(shè)置|電壓傳感\(zhòng)電壓互感器比率：10.00:1 2。按照下表注入電流并施加電壓。驗證測量值的準確性。查看測量值：A2 METERING DATA\ POWER METERING

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Any trip must be reset prior to each test. Short the emergency restart terminals momentarily immediately prior to each overload curve test to ensure that the thermal capacity used is zero. Failure to do so will result in shorter trip times. Inject the current of the proper amplitude to obtain the values as shown and verify the trip times. Motor load may be viewed in: A2 METERING DATA\CURRENT METERING 3. Thermal capacity used and estimated time to trip may be viewed in: A1 STATUS\MOTOR STATUS?The specification for reactive and apparent power is ±1% of √3 ×2 × CT × VT × VT full scale at Iavg <2 × CT. Perform the steps below to verify accuracy. 1. Alter the following setpoints: S2 SYSTEM SETUP\CURRENT SENSING\PHASE CT PRIMARY: 1000 S2 SYSTEM SETUP\VOLTAGE SENSING\VT CONNECTION TYPE: Wye S2 SYSTEM SETUP\VOLTAGE SENSING\VOLTAGE TRANSFORMER RATIO: 10.00:1 2. Inject current and apply voltage as per the table below. Verify accuracy of the measured values. View the measured values in: A2 METERING DATA\POWER METERING