Main purpose and scope of application
• DNDT series of dynamic reactive power compensation switching regulator is a new low-voltage reactive power compensation for the device on the low-voltage shunt capacitors for fast switching of the zero-based power electronic devices, is currently used for fast switching of capacitor ideal device.
• This product can be installed in low-voltage reactive power compensation capacitor cabinet or other appropriate location.
• This product can be installed in low-voltage reactive power compensation capacitor cabinet or other appropriate location.
• Working conditions
. Ambient temperature 5 ℃ ~ +55 ℃
. Altitude: The altitude of the installation location does not exceed 2000m.
. Relative humidity of the air relative humidity of the installation site at the highest temperature is +40 ℃ not more than 50% in the lower temperature allows a higher relative humidity, the wettest month of the monthly mean minimum temperature does not exceed +25 ℃, the the monthly average relative humidity Sheng large does not exceed 90%. As the temperature changes in the product release on the case of condensation, must be taken.
. Pollution level l level.
. Ambient temperature 5 ℃ ~ +55 ℃
. Altitude: The altitude of the installation location does not exceed 2000m.
. Relative humidity of the air relative humidity of the installation site at the highest temperature is +40 ℃ not more than 50% in the lower temperature allows a higher relative humidity, the wettest month of the monthly mean minimum temperature does not exceed +25 ℃, the the monthly average relative humidity Sheng large does not exceed 90%. As the temperature changes in the product release on the case of condensation, must be taken.
. Pollution level l level.
• Requirements of the surrounding environment does not allow a strong vibration and shock,
Does not allow corrosion and damage the insulation of the metal conductive medium gas and there is no risk of explosion of media containing no conductive dust, no rain and snow and severe mold presence.
. Transport, storage, environmental conditions: ambient temperature 40 ℃ ~ +70 ℃.
. Installation conditions: the mounting surface and the vertical gradient is not greater than + -5 °
Does not allow corrosion and damage the insulation of the metal conductive medium gas and there is no risk of explosion of media containing no conductive dust, no rain and snow and severe mold presence.
. Transport, storage, environmental conditions: ambient temperature 40 ℃ ~ +70 ℃.
. Installation conditions: the mounting surface and the vertical gradient is not greater than + -5 °
• The original rationale
. DNDT series of dynamic reactive power compensation switching regulator circuit using the main anti-parallel thyristor module, triggered by the other electronic circuit components, synchronization and control circuitry.
• Features
. Zero voltage switching turn-off to zero, no surge current zero removed, inrush current and over-voltage on the capacitor and the power grid without the impact.
. Work, no noise, fast response, to allow frequent movement.
. When the controller issued a switching signal, triggered by an internal module-specific implementations zero zero crossing turn-on voltage, current zero-crossing removal, so that the capacitors in the input and removal when no inrush current and over voltage generation.
. Failure rate is low, installation, wiring, easy to maintain.
. Switching circuit and control signals with optical isolation to avoid interference.
• Features
. Zero voltage switching turn-off to zero, no surge current zero removed, inrush current and over-voltage on the capacitor and the power grid without the impact.
. Work, no noise, fast response, to allow frequent movement.
. When the controller issued a switching signal, triggered by an internal module-specific implementations zero zero crossing turn-on voltage, current zero-crossing removal, so that the capacitors in the input and removal when no inrush current and over voltage generation.
. Failure rate is low, installation, wiring, easy to maintain.
. Switching circuit and control signals with optical isolation to avoid interference.
It has the function of reduce network losses, voltage quality assurance, to prevent voltage collapse and improve the capacity of the line transmission . it cannot be replaced by the vacuum circuit breaker and switching capacitor .it has been got a wide range of applications from 20 century 70s at home and abroad ,such as TCR,TSC,STATIOM .They all have a characteristic that off-state thyristor directly bear the bus bar network voltage or 2 times of network voltage.