The invention relates to the field of load experimental testing, and particularly relates to an adjustable reactor load test system. The adjustable reactor load test system comprises a test power supply cabinet, a distribution transformer, a voltage regulator, an intermediate transformer, a current mutual inductor and a voltage mutual inductor, wherein the test power supply cabinet, the distribution transformer, the voltage regulator and the intermediate transformer are sequentially connected; the intermediate transformer is connected in parallel with a to-be-tested adjustable reactor; a dynamic capacitance compensation device is connected in parallel between the intermediate transformer and the to-be-tested adjustable reactor; a primary side of the current mutual inductor is coupled withthe to-be-tested adjustable reactor by a loop; a secondary side of the current mutual inductor and a low-power-factor meter form a closed loop; and a primary side of the voltage mutual inductor is connected in parallel to both ends of the to-be-tested adjustable reactor. The adjustable reactor load test system has the substantive effect that by dynamically regulating capacity input into a capacitor bank, a total output current of the to-be-tested adjustable reactor is always kept at a low value in the testing process, so that testing on the high-capacity adjustable reactor can be completed byusing the low-capacity transformer.

Adjustable reactor load test system

The invention discloses a three-phrase static var compensation system and a control method thereof. The static var compensation comprises a high-pass filter consisting of a filter reactor and a filtercapacitor, also comprises a transformer, wherein the front ends of the primary side of transformer are respectively connected with an negative end of the first power switch and a positive end of thesecond power switch, the positive end of the first power switch is connected with the filter reactor; a capacitor compensation circuit and a reactance compensation circuit are arranged in parallel between the positive end of the auxiliary side of the transformer and the filter reactor, the negative end of the primary side, the negative end of the secondary side and the negative end of the second power switch in all the static var compensations are communicated with each other; wherein the first and second power switches, the capacitor power switch and the reactance power switch are controlledby the control system. The compensation overcomes the disadvantage that the capacitor compensation fails to continuously adjust and combines the advantages of accurate compensation of static var compensation, so that the stability of the system is improved.

Three-phase static var compensation system and control method thereof

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Three-phase static var compensation system and control method thereof