怎样调整并列上饶干式变压器组的逆功现象？

怎样调整并列上饶干式变压器组的逆功现象？　　当两台上饶干式变压器组空载并列后，会在两台机组之间，产生一个频率差与电压差的问题。并且在两台机组的监视仪表上（电流表、功率表、功率因数表），反应出实际的逆功情况，一种是转速（频率）不一致造成的逆功，另一种是电压不等造成的逆功，其调整如下：1．频率造成逆功现象的调整：如果两台机组的频率不等，相差较大时，在仪表上（电流表、功率表）显示出，转速高的机组电流显示正值，功率表指示为正功率，反之，电流指示负值，功率指示负值。这时调整其中一台机组的转速（频率），视功率表的指示进行调整，把功率表的指示调整为零即可。使两台机组的功率指示均为零，这样两台机的转速（频率）基本上一致。但是，这时电流表仍有指示时，这就是电压差造成的逆功现象了。2．电压差造成逆功现象的调整：当两台机组的功率表指示均为零时，而电流表仍然有电流指示（即一反一正指示）时，可调整其中一台上饶干式变压器组的电压调整旋钮，调整时，视电流表与功率因数的指示进行。将电流表的指示消除（即调整为零），电流表无指示后，这时视功率因数表的指示，把功率因数调至滞后0.5以上即可.一般可调整至0.8左右,为******状态。

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nCTT (Cummins Turbo Technologies) HX82/HX83 turbo-chargingutilizes exhaust energy with greater efficiency for improved emissions and fuel consumption. nLow Temperature After-cooling- Two-pump Two-loop (2P2L). nFerrous Cast Ductile Iron (FCD) Pistons- High strength design delivers superior durability. nG-Drive Integrated Design- Each component has been specifically developed and rigorously tested for G-Drive products, ensuring high performance, durability and reliability. nService and Support- G-Drive products are backed by an uncompromising level of technical support and after sales service, delivered through a world class service network. nCoolpac Integrated Design-Products are supplied complete with cooling package and air cleaner kit for a complete power package. Each component has been has been specifically developed and rigorously tested for G-Drive products, ensuring high performance, durability and reliability.

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