YOKOGAWA AIP591耦合單元卡件
型號和樣式編號
型號和樣式號描述了特定設備中包含的選項，以及出現在后面板上的標簽上。收到DECS-100后，確保檢查樣式根據請購單和裝箱單進行編號，以確保它們一致。
樣式號DECS-100電氣特性和操作特性由字母和構成樣式編號的編號。DECS-100樣式編號圖如圖1-1所示。樣式編號示例例如，樣式號為A15的DECS-100具有以下特征：操作特性。
A------無無無功或功率因數控制
1------電壓匹配
5------5安培電流感應過勵磁停機
當過勵磁保護功能啟用且磁場電壓超過10秒可調設定值。當過勵磁條件為：檢測。DECS-100通電時，過勵磁停機LED將點亮5秒在過勵磁停機之后。
發電機過電壓當發電機輸出電壓超過可調設定值0.75秒時，該LED點亮。當發電機過電壓條件存在，DECS-100輸出觸點閉合，DECS-100關閉（如果啟用了硬件關閉）。在以下情況下，發電機過電壓LED將點亮5秒：發電機過壓停機后，DECS-100通電。
發電機感應損失
當檢測到發電機感應電壓丟失時，該LED點亮。當失去傳感條件時DECS-100輸出觸點閉合。根據選擇的保護動作，DECS-100將關閉或轉換到手動模式。發電機感應指示燈將閃爍5秒
發電機感應停機丟失后DECS-100通電的秒數。過勵磁限制當磁場電流超過編程過勵磁極限時，該LED點亮。它一直亮著，直到過勵磁條件停止或過勵磁時間延遲到期，DECS-100關閉。
DECS-100通電后，過勵磁限制LED將閃爍5秒過勵磁限制停機。
欠勵磁限制當感測到的無功功率（超前VAR）低于編程值時，該LED點亮
欠勵磁極限。在欠勵磁條件停止或欠勵磁時間結束之前，該燈一直亮著延遲到期，DECS-100關閉。欠勵磁限制LED將閃爍5秒當DECS-100在欠勵磁限制停機后通電時。
Var/P.F.模式激活該LED指示燈亮起，表明DECS-100在可選的Var或功率因數模式下運行
控制Var/功率因數控制通過BESTCOMS軟件啟用，當52J/K觸點輸入打開。
MODEL AND STYLE NUMBER
The model number, together with the style number, describe the options included in a specific device, and
appear on a label affixed to the rear panel. Upon receipt of a DECS-100, be sure to check the style
number against the requisition and the packing list to ensure that they agree.
Style Number
DECS-100 electrical characteristics and operational features are defined by a combination of letters and
numbers that make up the style number. The DECS-100 style number chart is shown in Figure 1-1.
Style Number Example
For example, a DECS-100 with a style number of A15 would have the following characteristics and
operating features.
A ------- No var or power factor control
1-------- Voltage matching
5-------- 5 ampere current sensing Overexcitation Shutdown
This LED lights when the Overexcitation Protection feature is enabled and the field voltage exceeds the
adjustable setpoint for 10 seconds. The DECS-100 will shutdown when an overexcitation condition is
detected. The Overexcitation Shutdown LED will light for 5 seconds when the DECS-100 is powered up
following an overexcitation shutdown.
Generator Overvoltage
This LED lights when generator output voltage exceeds the adjustable setpoint for 0.75 seconds. When a
generator overvoltage condition exists, the DECS-100 output contacts close and the DECS-100 shuts
down (if hardware shutdown is enabled). The Generator Overvoltage LED will light for 5 seconds when
the DECS-100 is powered up following a generator overvoltage shutdown.
Loss of Generator Sensing
This LED lights when a loss of generator sensing voltage is detected. When a loss of sensing condition
occurs, the DECS-100 output contacts close. Depending on the protective action selected, the DECS-100
will either shutdown or transfer to Manual mode. The Loss of Generator Sensing LED will flash for 5
seconds when the DECS-100 is powered up following a loss of generator sensing shutdown. Overexcitation Limiting
This LED lights when the field current exceeds the programmed overexcitation limit. It stays lit until the
overexcitation condition ceases or the overexcitation time delay expires and the DECS-100 shuts down.
The Overexcitation Limiting LED will flash for 5 seconds when the DECS-100 is powered up following an
overexcitation limiting shutdown.
Underexcitation Limiting
This LED lights when the sensed, reactive power (leading vars) decreases below the programmed
underexcitation limit. It stays lit until the underexcitation condition ceases or the underexcitation time
delay expires and the DECS-100 shuts down. The Underexcitation Limiting LED will flash for 5 seconds
when the DECS-100 is powered up following an underexcitation limiting shutdown.
Var/P.F. Mode Active
This LED lights to indicate that the DECS-100 is operating in the optional Var or Power Factor mode of
control. Var/Power Factor control is enabled through BESTCOMS software and when the 52J/K contact
input is open.
