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Dry Semi-core Reactor

Dry Semi-core Reactor
1.     General
Dry semi-core reactor, that is putting the core columns in the traditional structure of core reactor to the hollow of  the air-core reactor. Which is different from the traditional iron core reactor is its core is not surrounded by the coil to form a closed loop, it is cleverly to transfer the air gap of the original iron core reactor core placed in the column of air gap (the gap is to obtain a specific inductance value necessary) to the air core reactor coils outside.
2.     Classification and use of reactors
There are two ways of connection, in series and in shunt. Series reactor is usually for limiting current, and the shunt reactor plays the role of reactive power compensation.
Semi-core dry shunt reactor, at super high voltage long-distance transmission system, Connected totertiary coils on the transformer to compensate for capacitive line charging current, limiting the system voltage increases and operating over voltage, thereby reducing the system insulation level, to ensure reliable operation of circuits.
Semi-core dry series reactor, installed in the capacitor circuit, when the capacitor circuit is put on, the reactor can control surge current,  but also be set with capacitor bank into harmonic circuit to filter the specific harmonic wave.
3.     Main Features.
As the core need not surround the coil, thus saving a lot of core material.
Comparing with Dry air core shunt reactor comparison, the volume of dry semi-core reactor is decreased by 30 ~ 50%, power loss of semi-core shunt reactor reduced by 20 ~ 30%, semi-core series reactor operation energy reduced by 30 ~ 40%.
Semi-core reactor core column is vacuum epoxy casted by the overall shape, the overall dense, solid, run-time minimal vibration, low noise. Reactor with a special protective measures to deal with can be directly used in outdoor environmental conditions without any restrictions.
VA characteristics is similar to linear. The traditional concept show that, with the core of the reactor, the voltage characteristics for the non-linear, semi-dry reactor core voltage characteristics show linear features.
In addition to these features, the semi-core reactor also has a dry-type air core reactor many advantages, such as: high mechanical strength; resistance to short-circuit capacity; using materials from the destruction, Needless to strict fire safety measures; simple maintenance ; operational safety and high reliability.
4. Main parameters:
 Rated voltage:6~66kV.
Rated capacity: 72~400kVar.
 Rated frequency:50/60Hz。
 Reactance ratio: 4.5%、6%、12%
5. Implementation of standards
   GB10229-88、JB5346-1998、DL462-92
6. Service condition:
The product can be used in door or outdoor.
Temperature range: -40~+45℃.
The altitude of the site is not more than 1000m. (If more than 1000m, please inform us when ordering)☆There is no harmful gas and vapor, conductive and explosive dust.
 
 
 
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