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FOXBORO 57625-441擴展驅(qū)動模塊庫存

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FOXBORO 57625-441擴展驅(qū)動模塊庫存

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FOXBORO 57625-441擴展驅(qū)動模塊庫存 FOXBORO 57625-441擴展驅(qū)動模塊庫存 FOXBORO 57625-441擴展驅(qū)動模塊庫存 FOXBORO 57625-441擴展驅(qū)動模塊庫存
調(diào)整：與電壓調(diào)節(jié)器有關(guān)的調(diào)整，以及以下段落中描述了系統(tǒng)操作，除了如有說明，在初始運行期間和正常情況下進行調(diào)整在電壓調(diào)節(jié)器的壽命期間不必重復。
發(fā)電機電壓調(diào)整變阻器（VAR）：此調(diào)整為用于控制發(fā)電機電壓。設(shè)置為大值時逆時針位置，獲得小發(fā)電機電壓。
當變阻器設(shè)置為大順時針位置。
標稱電壓范圍設(shè)置調(diào)整（R2）：提供此調(diào)整
為了擴大發(fā)電機電壓調(diào)整變阻器（VAR）的限制。通常，R2設(shè)置為向發(fā)電機電壓調(diào)節(jié)變阻器提供：額定電壓±10%的調(diào)節(jié)范圍。R2位于監(jiān)管者在嘗試調(diào)整R2之前，松開1/2英寸鎖緊螺母（用小螺絲刀）。調(diào)整后重新擰緊鎖緊螺母完成
穩(wěn)定性調(diào)整（R6）：穩(wěn)定性控制R6提供穩(wěn)定
通過控制反饋量來調(diào)節(jié)操作，即應(yīng)用于誤差檢測器級。逆時針轉(zhuǎn)動控制裝置減少穩(wěn)定性反饋量，使調(diào)節(jié)器反應(yīng)更快。
該控制裝置位于蓋子頂部，安裝在加熱器下方下沉和高于范圍調(diào)整。松開9/16英寸六角頭鎖緊螺母，防止控制軸在使用前因振動而轉(zhuǎn)動嘗試調(diào)整R6（使用螺絲刀）。之后重新擰緊鎖緊螺母調(diào)整完成。
以額定頻率、空載運行發(fā)電機穩(wěn)定性調(diào)整是關(guān)鍵的。廣告公正穩(wěn)定? rst旋轉(zhuǎn)使用螺絲刀完全順時針控制。螺絲刀的一端插槽將指向2點鐘；這一端是指針。設(shè)置穩(wěn)定性逆時針旋轉(zhuǎn)指針至10點鐘。此設(shè)置正常確保良好的穩(wěn)定性，但可能無法提供佳響應(yīng)時間發(fā)電機。
如果發(fā)電機電壓振蕩（振蕩），順時針轉(zhuǎn)動控制器
振蕩停止的點。如果需要更快的響應(yīng)，旋轉(zhuǎn)逆時針控制，直到電壓變得不穩(wěn)定，以及然后順時針旋轉(zhuǎn)，直到電壓穩(wěn)定。佳調(diào)整當發(fā)電機電壓穩(wěn)定且響應(yīng)令人滿意時達到空載時，以及在任何負載下運行至滿載時發(fā)電機的額定值。并聯(lián)電壓降電位計（R4）：提供此調(diào)整以控制并聯(lián)運行的發(fā)電機的電壓降信號。它位于調(diào)節(jié)器底盤上。達到大電壓降當電位計設(shè)置到其大順時針位置時。調(diào)整并聯(lián)運行的每臺發(fā)電機具有相同的電壓降
如以下并行操作過程中所述。使使用1/2英寸扳手松開鎖緊螺母進行調(diào)整，調(diào)整用螺絲刀將下垂，然后擰緊鎖緊螺母已經(jīng)進行了調(diào)整。
欠頻調(diào)整（R55）：該調(diào)整包括在電壓調(diào)節(jié)器提供了低頻限制選項。R55是否在工廠按照以上所列或發(fā)電機的要求進行調(diào)整采購訂單。
-當發(fā)電機頻率可設(shè)置為所需的斷點：
1.在電路板之間連接電壓表端子TP1和TP2。
2.在所需的低頻限值設(shè)置下運行發(fā)電機點（例如58Hz）。
3.根據(jù)儀表上的指示，將R55調(diào)整為0伏。
-發(fā)電機運行時調(diào)整低頻限值頻率無法調(diào)整。
1.在電路板之間連接電壓表端子TP1（負）和TP2（正）。
2.在額定轉(zhuǎn)速和電壓下運行發(fā)電機。
3.確定所需的低頻限值設(shè)定電壓60Hz發(fā)電機見表1，50Hz發(fā)電機見表2發(fā)電機。
4.調(diào)整R55，直到TP1-TP2之間的電壓等于測試適當表格中給出的電壓。示例：帶單位在60Hz下運行，并且其中期望在大約55Hz下限制，TP1-TP2兩端的電壓應(yīng)為-0.438 Vdc。Adjustments: The adjustments pertaining to the voltage regulator and
system operation are described in the paragraphs that follow and, except
where noted, adjustment is made during initial operation and normally
does not have to be repeated during the life of the voltage regulator.
Generator voltage adjust rheostat (VAR): This adjustment is
provided to control the generator voltage. When set to its maximum
counterclockwise position, minimum generator voltage is obtained.
Maximum generator voltage is obtained when the rheostat is set to its
maximum clockwise position.
Nominal voltage range set adjust (R2): This adjustment is provided
to extend the limits of the generator voltage adjust rheostat (VAR).
Normally R2 is set to provide the generator voltage adjust rheostat with
an adjustment range of ±10% of rated voltage. R2 is located on the
regulator. Loosen the 1/2 inch locknut before attempting to adjust R2
(with a small screwdriver). Retighten the locknut after adjustment is
complete.
Stability adjustment (R6): Stability control R6 provides for stable
regulating operation by controlling the amount of feedback that is
ap plied to the error detector stage. Turning the control counterclockwise
decreases the amount of the stability feedback, making the regulator
respond faster.
This control is located on top of the cover, mounted below the heat
sink and above the RANGE adjust. Loosen the 9/16 inch hex-head
locknut that keeps the control shaft from turning due to vibration before
attempting to adjust R6 (with a screwdriver). Retighten the locknut after
adjustment is complete.
Operate the generator at rated frequency, no load, the point at which the
stability adjustment is most critical. Ad just STABILITY by ? rst rotating
the control fully clockwise with screwdriver. One end of the screwdriver
slot will point to 2 o?clock; this end is the pointer. Set the STABILITY
by rotating pointer counterclockwise to 10 o?clock. This setting normally
ensures good stability, but may not provide optimum response time for
the generator.
If the generator voltage oscillates (hunts), turn the control clockwise past
the point where oscilla tion stops. If faster response is required, rotate
the control counterclockwise until the voltage becomes unstable, and
then rotate clockwise until the voltage is stable. Optimum adjustment
is attained when generator voltage is stable and response is satisfactory
at no-load and also during operation under any load up to the full load
rating of the generator.Parallel voltage droop potentiometer (R4): This adjustment is provided
to control the voltage droop signal of generators operating parallel. It
is located on the regulator chassis. Maximum voltage droop is attained
when the potentiometer is set to its maximum clockwise position. Adjust
each generator that will be operated parallel for identical voltage droop
as described in the parallel operation procedure that follows. Make the
adjustment by loosening the locknut with a 1/2 inch wrench, adjusting
the droop with a screwdriver and then tightening the locknut after the
adjustment has been made.
Underfrequency Adjustment (R55): This adjustment is included in
voltage regulators provided with the underfrequency limit option. R55
is ad justed at the factory as listed above or as requested in the generator
purchase order.
- Adjusting the underfrequency limit when the generator
frequency can be set to the desired breakpoint:
1. Connect a voltmeter between the circuit board
terminals TP1 and TP2.
2. Run generator at the desired underfrequency limit set
point (for example 58 Hz).
3. Adjust R55 for 0 volts as indicated on the meter.
- Adjusting the underfrequency limit when generator
frequency can not be adjusted.
1. Connect a voltmeter between the circuit board
terminals TP1 (negative) and TP2 (positive).
2. Run the generator at rated speed and voltage.
3. Determine the desired underfrequency limit setting voltage
from Table 1 for 60 Hz generators or Table 2 for 50 Hz
generators.
4. Adjust R55 until the voltage between TP1-TP2 equals the test
voltage given in the appropriate table. EXAMPLE: With unit
running at 60 Hz and where limiting is desired at about 55 Hz,
the voltage across TP1-TP2 should be -0.438 Vdc.