HBMBCAAJABC1BNN11G操作顯示器
電壓調(diào)節(jié)器電路：電壓調(diào)節(jié)器感應(yīng)發(fā)電機
電壓，比較矩形? ed參考電壓的樣本
電壓，并提供? 維持
發(fā)電機電壓與參考電壓之間的預(yù)定比率
電壓變壓器T1是標準中的傳感變壓器
單相感應(yīng)KCR 760電壓調(diào)節(jié)器
設(shè)計用于三相感應(yīng)的電壓調(diào)節(jié)器包括兩個：
感測變壓器（T1和T3）。感測電路還包括：
變壓器（T2）和電位計（R4）。變壓器T2，電位計
R4和外部電流互感器提供了實現(xiàn)并聯(lián)發(fā)電機運行期間的無功kVA負載分擔。這個并聯(lián)運行部件不影響電壓調(diào)節(jié)器的運行當發(fā)電機單獨運行時。
在配備欠頻限制（UFL）或V/Hz選項的調(diào)節(jié)器上，該電路與調(diào)節(jié)器、傳感和誤差檢測器相互作用
在低速運行期間降低電壓的方式。固態(tài)? 每次發(fā)電機啟動時，灰化電路工作。這個? 灰化
當發(fā)電機電壓達到約70%時，電路斷電額定電壓輸出。大多數(shù)電路都包含在印刷電路板上電路板。
單獨安裝在調(diào)節(jié)器上的部件
情況是感測變壓器、并聯(lián)操作變壓器T2，扼流圈L1，標稱電壓范圍設(shè)置為調(diào)整R2，穩(wěn)定性調(diào)整R6，電容器C32、C33和C34、并聯(lián)電壓降電位器R4，功率級和保險絲。外部電壓調(diào)節(jié)變阻器VAR為用于安裝在控制面板上。單臺發(fā)電機運行期間的感應(yīng)電路：電壓感應(yīng)變壓器提供與發(fā)電機電壓成比例的電壓輸出該電壓通過T2的初級繞組饋送至全波直腸? er由硅二極管D3、D4、D17、D18、D23和D24組成? ed電壓為? 由電阻器R3、扼流圈L1和電容器濾波Cl.來自? lter應(yīng)用于錯誤檢測器低頻限值。
通過以下方式使二次并聯(lián)運行變壓器T2短路：使用跨接桿跨接CT和CT1，或?qū)4旋轉(zhuǎn)至最大
逆時針位置或?qū)⒀b置/并聯(lián)開關(guān)設(shè)置為單元，消除了單臺發(fā)電機運行期間T2的影響。并聯(lián)發(fā)電機無功運行期間的感應(yīng)電路電壓降補償模式：發(fā)電機互聯(lián)無功電壓降補償將按比例共享電感并聯(lián)運行期間的無功負載，發(fā)電機減少系統(tǒng)電壓。中描述了這種kVAR負載分擔方法以下段落。
傳感變壓器提供的電壓與感測電壓。一個電流互感器（CT），安裝在第二條線路上：發(fā)生器產(chǎn)生與振幅成比例的信號，并且與線路電流的相位。該信號在滑線并聯(lián)電壓降調(diào)整電位計R4。設(shè)置
R4確定該電壓的多少施加到初級電源變壓器T2。
Voltage regulator circuits: The voltage regulator senses the generator
voltage, compares a recti? ed sample of that voltage with a reference
voltage, and supplies the ? eld current required to maintain the
predetermined ratio between the generator voltage and the reference
voltage. Transformer T1 is the sensing transformer in a standard
single-phase sensing KCR 760 voltage regulator while a KCR 760
voltage regulator designed for three-phase sensing includes two
sensing transformers (T1 and T3). The sensing circuitry also includes a
transformer (T2) and potentiometer (R4). Transformer T2, potentiometer
R4, and an external current transformer provide means of attaining
reactive kVA load sharing during parallel generator operation. The
parallel operation components do not affect voltage regulator operation
when the generator is operated singly.
On regulators equipped with underfrequency limit (UFL) or V/Hz option,
this circuitry interacts with the regulator sensing and error detector in a
manner that decreases voltage during underspeed operation. A solid-state
? ashing circuit operates each time the generator is started. The ? ashing
circuit de-energizes when generator voltage has built up to about 70%
of rated voltage output. Most of the circuits are contained on a printed
circuit board. Parts that are individually mounted on the regulator
case are the sensing transformer(s), parallel operation transformer T2,
choke L1, nominal voltage range set adjust R2, stability adjustment R6,
capacitors C32, C33, & C34, parallel voltage droop potentiometer R4,
the power stage, and a fuse. External voltage adjust rheostat VAR is
provided for installation on a control panel.
Sensing circuit during single generator operation: The voltage sensing
transformer(s) provides a voltage proportional to the generator voltage
output. This voltage is fed across the primary of T2 to a full-wave
recti? er comprised of silicon diodes D3, D4, D17, D18, D23, and D24. The recti? ed voltage is ? ltered by resistor R3, choke L1, and capacitor
Cl. The dc signal from the ? lter is applied to the error detector and the
underfrequency limit.
Shorting the secondary parallel operation transformer T2, either by
using the jumper bar across CT? and CT1, or turning R4 to its full
counterclockwise position or setting the UNIT/PARALLEL switch to
UNIT, eliminates the effect of T2 during single generator operation.Sensing circuit during parallel generator operation in reactive
voltage droop compensation mode: Generators interconnected for
reactive voltage droop compensation will proportionally share inductive
reactive loads during parallel operation by a decrease in generator
system voltage. This method of kVAR load sharing is described in the
paragraphs that follow.
The sensing transformer(s) provides a voltage proportional to the
sensing voltage. A current transformer (CT) installed in line two of
the generator develops a signal that is proportional in amplitude and
phase to the line current. This signal develops a voltage across the
slide-wire parallel voltage droop adjust potentiometer R4. The setting
R4 determines how much of this voltage is applied to the primary
transformer T2.
