BN series Capacity 10-120KVA Power Factor 0.8 Input voltage 110V/220V/380V/480V Output voltage 110V/220V/380V/480V Transformer output isolation, output isolation, bypass isolation Battery voltage 110V/192V/220V/384V Number of batteries 16/18/32 and DC screen power supply 6 pulses/12 pulses rectifier IP rating IP42 (customizable)

design
Due to the use of the latest IGBT transistor technology in both rectification and inversion, the new ENERTRONIC I series provides the highest level of power reliability while ensuring system economy. The input power factor of UPS is ≥ 0.99, and the total harmonic distortion of the input is<5%. The inverter design of the ENERTRONICI series UPS is excellent, and the dynamic output voltage offset value is very small even under 100% load variation. The combination of 16 bit microprocessors and the latest power electronics technology ensures high reliability in the control and monitoring of all rectifiers, inverters, and static electronic bypasses. Static electronic bypass and manual bypass switches are integrated into the equipment. The front of the cabinet is equipped with a plastic film keyboard, which has six buttons, four three color and two monochrome light-emitting diodes, and a system simulation operation diagram.
function
UPS power supply provides uninterrupted power supply with significantly improved voltage and frequency quality for system loads.
In normal operation, the load is powered by an input transformer, rectifier, inverter, and output transformer.
The ENERTRONIC I series design meets the highest level of UPS VFI SS 111 and complies with EN 62040-2.
rectifier
The three-phase mains power is converted into adjustable and stable DC voltage through self coupling or isolation transformers and rectifiers, providing DC power for the inverter and charging and float charging power for the battery, ensuring that the battery is in the best working state; The rectifier adopts the most advanced IGBT technology and is equipped with an input power factor correction circuit (power factor=1), which results in almost zero interference and pollution of the equipment to the power grid, reducing system investment and operating costs after operation. The rectifier provides full load power to the inverter and can recharge the discharged battery to 95% of its capacity within 12 hours. The rectifier is equipped with a software controlled soft start function, which can slowly boost and restart after a mains power failure without causing any impact on the power grid. The restart of the parallel system is carried out alternately to ensure that all UPS systems do not start simultaneously. The rectifier has IU characteristics, meets the requirements of battery manufacturers, and has optional battery temperature compensation to maximize battery life.
inverter
Inverter power devices convert DC voltage into single-phase or three-phase sinusoidal AC voltage with stable amplitude and frequency. The standard sine wave voltage output is not affected by mains disturbances or faults. The inverter adopts IGBT pulse width modulation technology, which can ensure high efficiency even under partial load and low harmonic distortion under nonlinear load. Once the mains power is disturbed or faulty, the battery connected to the DC input terminal automatically supplies power to the load without interruption. The system will receive an alarm signal when the battery is discharged. If the discharge voltage of the battery is lower than the minimum discharge voltage allowed by the battery, the system will automatically shut down and immediately give an alarm signal before reaching the discharge voltage. If the output of the inverter exceeds the preset deviation range, the load will automatically switch to the bypass mains or other redundant systems.
Static bypass
Static electronic bypass is a device that switches between inverter output and bypass mains power. When the output of UPS fails or the load is abnormal, the output of the inverter automatically switches to the bypass mains power without interruption. Switching can also be done manually. Microprocessors can monitor and prevent system misoperation and bypass system switching errors. Both manual and automatic uninterrupted switching can only be performed when the voltage, frequency, and phase of the inverter are synchronized with the bypass mains. When the deviation of the mains frequency is outside the preset range, the switching function will be locked. If the inverter fails, the switching will be interrupted. When the DC output returns to normal and runs stably, the bypass will automatically switch back to inverter operation, and the load power supply will not be interrupted during the switching process. Even if the bypass power is manually cut off during testing, it is the same. The static bypass is configured with a microprocessor controlled reverse parallel thyristor power device. It can be manually activated through buttons to test the switching function. During synchronous operation, the load power supply can switch from the inverter to the mains power or from the mains power to the inverter without interruption.
When the static bypass overload capacity is 150%, it takes 10 minutes, and when it is 500% (single-phase output) and 1000% (three-phase output), it takes 100 milliseconds. After maintaining overload or short circuit for a period of time, once external conditions return to normal, the equipment will automatically switch the load to the inverter.
Internal manual bypass
Each UPS is equipped with a maintenance bypass with manually operated switches. When switching to the maintenance bypass, ENERTRONIC I is completely separated from the load. At this time, the load is directly powered by the mains through a manual bypass.
Parallel operation
Up to 8 ENERTRONIC I can run in parallel to provide redundancy or increase output power. Parallel UPS is divided into active host and passive host (relative to master-slave parallel mode). One UPS is the active host, and when it fails, one of the passive hosts automatically becomes the active host, instead of the master-slave parallel mode where a host failure can cause system paralysis. When there is a bus tie switch between two parallel UPS units, the bus tie switch is disconnected during operation, and the auxiliary contacts of the bus tie switch can notify the UPS to switch from parallel operation to single operation.
option
In the application of power plants, it may be necessary for UPS to withstand high short-circuit currents to ensure that in the event of a short circuit in the later stage, the UPS can output sufficient current to activate the circuit breaker in the later stage. ENERTRONIC I can optionally achieve a short-circuit current of 4 times the rated current.
Note: The cabinet size may increase depending on the output power.