ICS TRIPLEX T3500備件模塊,工控模塊
與殼體兩側(cè)的導槽接合。4.從中心抓住鎖定手柄并用力向下按壓，將手柄從升高位置向裝置底部旋轉(zhuǎn)。5.當裝置完全插入時，會聽到門閂發(fā)出咔嗒聲，將手柄鎖定在最終位置。裝置安裝期間無需遵守特殊通風要求。該裝置不需要清潔。警告2-6 469電機管理繼電器GE Multilin 2.1機械2安裝2 2.1.5端子位置圖2–9：端子布局GE Multilin 469電機控制繼電器2-7 2安裝2.1機械2表2–1:469端子列表端子應涵蓋儀表變壓器輸入、其他輸入、輸出、通信和接地的互連。端子布置見第2-6頁圖2–9：端子布置圖和第2-7頁表2–1:469端子列表。2.2.2控制電源469控制電源必須與安裝的開關(guān)電源匹配。如果施加的電壓不匹配，可能會損壞裝置！抽出裝置側(cè)端子標簽上的訂單代碼規(guī)定了標稱控制電壓，如下所示：?LO：20至60 V DC；20至48 V AC，或?HI:90至300 V DC；70至265 V AC確保施加的控制電壓與抽出式外殼端子標簽上的額定電壓匹配。例如，HI電源將在90至300 V的直流電壓或70至265 V的交流電壓下工作。如果施加的電壓超過此范圍，內(nèi)部保險絲可能會熔斷。圖2-11：控制電源連接469內(nèi)置了廣泛的濾波和瞬態(tài)保護，以確保在惡劣的工業(yè)環(huán)境中正常運行。瞬態(tài)能量必須通過濾波器接地端子傳導回電源。為高壓測試提供單獨的安全接地端子。無論控制電源類型如何，必須連接所有接地以正常運行。警告2-10 469電機管理繼電器GE Multilin 2.2電氣2安裝2 2.2.3電流輸入a）相電流輸入469有三個相電流輸入通道，每個通道都有一個隔離變壓器。電流輸入上沒有內(nèi)部接地連接。如果裝置被撤回，469外殼上的各相CT電路會被自動機構(gòu)短路。應選擇相位CT，使FLA不小于額定相位CT一次的50%。理想情況下，應選擇CT初級相位，以使FLA為CT初級相位的100%，或稍小，絕不超過。這將確保電流測量的最大精度。最大相CT一次電流為5000 A。469可正確測量相電流額定值的20倍。由于轉(zhuǎn)換范圍較大，訂購時必須指定1 A或5 A CT次級，以確保裝置中安裝了適當?shù)牟迦胧紺T。所選CT必須能夠驅(qū)動469相CT負載（額定值見第1-4頁第1.2節(jié)：規(guī)范）。驗證1 A或5 A的469標稱相電流是否與所連接CT的次級額定值和連接相匹配。不匹配的CT可能導致設(shè)備損壞或保護不足。相位CT的極性對于負序不平衡計算、功率測量和剩余接地電流至關(guān)重要
engaged the guide slots on either side of the case. 4. Grasp the locking handle from the center and press down firmly, rotating the handle from the raised position toward the bottom of the unit. 5. When the unit is fully inserted, the latch will be heard to click, locking the handle in the final position. No special ventilation requirements need to be observed during the installation of the unit. The unit does not require cleaning. CAUTION 2-6 469 Motor Management Relay GE Multilin 2.1 MECHANICAL 2 INSTALLATION 2 2.1.5 TERMINAL LOCATIONS Figure 2–9: TERMINAL LAYOUT GE Multilin 469 Motor Management Relay 2-7 2 INSTALLATION 2.1 MECHANICAL 2 Table 2–1: 469 TERMINAL LIST TERMINA ll cover the interconnections of instrument transformer inputs, other inputs, outputs, communications, and grounding. See Figure 2–9: Terminal Layout on page 2–6 and Table 2–1: 469 TERMINAL LIST on page 2–7 for terminal arrangement. 2.2.2 CONTROL POWER The 469 control power must match the installed switching power supply. If the applied voltage does not match, damage to the unit may occur! The order code from the terminal label on the side of the drawout unit specifies the nominal control voltage as follows: ? LO: 20 to 60 V DC; 20 to 48 V AC, or ? HI: 90 to 300 V DC; 70 to 265 V AC Ensure applied control voltage and rated voltage on drawout case terminal label match. For example, the HI power supply will work with any DC voltage from 90 to 300 V, or AC voltage from 70 to 265 V. The internal fuse may blow if the applied voltage exceeds this range. Figure 2–11: CONTROL POWER CONNECTION Extensive filtering and transient protection are built into the 469 to ensure proper operation in harsh industrial environments. Transient energy must be conducted back to the source through the filter ground terminal. A separate safety ground terminal is provided for hi-pot testing. All grounds MUST be hooked up for normal operation regardless of control power supply type. CAUTION WARNING 2-10 469 Motor Management Relay GE Multilin 2.2 ELECTRICAL 2 INSTALLATION 2 2.2.3 CURRENT INPUTS a) PHASE CURRENT INPUTS The 469 has three channels for phase current inputs, each with an isolating transformer. There are no internal ground connections on the current inputs. If the unit is withdrawn, each phase CT circuit is shorted by automatic mechanisms on the 469 case. The phase CTs should be chosen so the FLA is no less than 50% of the rated phase CT primary. Ideally, the phase CT primary should be chosen such that the FLA is 100% of the phase CT primary or slightly less, never more. This will ensure maximum accuracy for the current measurements. The maximum phase CT primary current is 5000 A. The 469 correctly measures up to 20 times the phase current nominal rating. Since the conversion range is large, 1 A or 5 A CT secondaries must be specified at the time of order to ensure the appropriate interposing CT is installed in the unit. The chosen CTs must be capable of driving the 469 phase CT burden (see Section 1.2: Specifications on page 1–4 for ratings). Verify that the 469 nominal phase current of 1 A or 5 A matches the secondary rating and connections of the connected CTs. Unmatched CTs may result in equipment damage or inadequate protection. Polarity of the phase CTs is critical for Negative Sequence Unbalance calculation, power measurement, and residual ground current
