Power Quality Power Supply
1.Active Power Filter (APF)
Voltage Level: 208V-750V
Full cabinet capacity: 30A-600A
Main features
■ The working voltage is from 208 V to 750V, and the installation design is flexible and varied.
■ It has the functions of harmonic, reactive power and unbalance compensation, and can realize free combination.
■ Centrifugal large capacity fan heat dissipation, in addition to the radiator and inductance, the rest are not in the duct, good insulation heat dissipation;
■ Schneider wire-entry contactor is more shock-resistant than conventional on-board relay and can pass through greater impact current.
■ The redundancy of power devices is large and the peak coefficient is 4 times, which ensures full-load operation.
■ Unique modular structure design, the whole cabinet bottom air intake, top air outlet, can avoid the whole cabinet door plate large area openings, air intake plus dust shutters, dust-proof, heat dissipation, beautiful;
■LCL uses large capacity damping resistor and capacitor, combined with active damping, to ensure that the harmonic of the equipment itself interferes with other equipment, and to ensure that the equipment works stably when the voltage distortion rate is more than 15% and a large number of modules are connected in parallel.
■ The device has the function of shutdown, self-diagnosis and recovery caused by non-device problems.
■ The instantaneous response speed of microsecond level is less than 20 ms.
■ It has WIFI and remote Internet of Things monitoring function.
2. Static Var Generator (SVG)
Rated voltage: 208V-750V
Full cabinet capacity: 30Kvar-500Kvar
Main features
■ The working voltage is from 208 V to 750V, and the installation design is flexible and varied.
■ Two-way dynamic compensation of inductive or capacitive reactive power can improve power factor and stabilize system voltage.
■ Reactive power can be fixed output or follow the response.
■ The instantaneous response speed of microsecond level is less than 8 ms.
■LCL uses large capacity damping resistor and capacitor, combined with active damping, which can ensure the harmonic interference of the equipment itself to other devices, and the stable operation of the equipment when the voltage distortion rate is more than 15% and a large number of modules are connected in parallel. It has WIFI and remote Internet of Things monitoring function.
■ The device has the function of shutdown, self-diagnosis and recovery caused by non-device problems.
■ The reactive power of 10KV or 35KV side can be compensated by boost transformer, and the connection group of transformer can be matched intelligently.
3.Power Quality Comprehensive Compensation Device (PQC)
Rated voltage: 208V-750V
Full tank rated capacity: 100Kvar+50A-500Kvar+250A
Main features
■ The working voltage is from 208 V to 750V, and the installation design is flexible and varied.
■ When reactive power is compensated, the second to thirteenth harmonics can be filtered. It is especially suitable for the occasion of compensating reactive power and considering filtering.
■ The device has the function of shutdown, self-diagnosis and recovery caused by non-device problems.
■ Under the condition of guaranteeing output, a larger inductance can be designed to operate steadily under sudden change of grid voltage or load shock.
■Unique modular structure design, the whole cabinet bottom air intake, top air outlet, can avoid the whole cabinet door plate large area openings, air intake plus dust shutters, dust-proof, heat dissipation, beautiful;
■ The instantaneous response speed of microsecond level is less than 8 ms.
■ It has WIFI and remote Internet of Things monitoring function.
4.Hybrid Low Voltage Dynamic Reactive Power Compensation Device HSVG
Rated voltage: AC 400V
Capacity: 100Kvar-600Kvar
Main features
■ The SVG in the device smoothes linear output, covers the reactive power gap in all directions, realizes the accurate
compensation of reactive current and ensures the power factor (> 0.99).
■ According to different load characteristics, the ratio of reactive power output between SVG and SVC is automatically adjusted to effectively reduce the switching time and frequency of capacitors and prolong the service life of capacitors.
■ Capacitance band 7% reactance to prevent active and passive interference;
■ Active SVG and passive SVC controllers are intelligently fused and unified centralized control is adopted.
■ The zero-crossing switching of SVC in the device is adopted to prevent inrush impact.
■ The device has complete protection functions, including over-current, over-voltage, under-voltage, overtemperature and other protections. It has the function of automatic current limiting to prevent overcompensation and undercompensation.
■ In necessary occasions, by setting parameters, the SVG function of equipment can be converted into harmonic control function.
5.Static Low Voltage Reactive Power Compensation Device SVC
Rated voltage: AC 400V
Capacity: 100Kvar-600Kvar
Main features
■ No surge when switching, zero-crossing input of capacitor voltage and zero-crossing cut of current can be realized.
Overvoltage of switch can be completely avoided by the same supplementary switch, no overvoltage breakdown, no arc tension and reburning.
■ The device adopts the phase-separated compensation mode. The angular capacitor group and the star capacitor group work in the phase-separated compensation mode, realizing the phase-separated equivalent switching and controlling according to the voltage limit.
■ Target control algorithm is adopted to compensate reactive current and improve power factor based on power factor, three-phase load current and three-phase voltage.
■ The product has complete protection functions, including temperature protection in capacitor body, harmonic protection of power grid, over-voltage protection of power grid, under-voltage protection of power grid, phase-gap protection, short-circuit protection, etc.
■ Reasonable layout of devices in the cabinet, with independent air duct, achieves the best heat dissipation effect, effectively prolongs the service life of capacitors;
■ Simple wiring design, easy installation and operation maintenance, reduce the daily maintenance workload;
■ The closed integrated bus system is adopted to shield the live part effectively and improve the safety factor of operation.
