BK-DTS series electric power UPS
Brief introduction
Electric UPS
BK-DTS series electrical power UPS, DBW bypass stable cabinet and PD series feeder-line cabinet are designed for power plant, substation and load dispatching office. They have on-line dual conversion design and zero transfer time functions, be widely applied to power equipment, RTU, power line carrier and power monitoring etc. When mains is normal, single phase 220V( or 3 phases 380V) supply stable electricity to load through isolation and filter. When mains is abnormal or cut off, static switch will switch to inverter operation mode and supply electricity to load. When DC screen is under-voltage or cut off, static switch will switch to bypass operation mode. When mains recover will automatically switch to mains operation mode. When Inverter is overload or failed, the UPS will switch to bypass operation mode and send warning signal.
Be widely applied to power plant, substation, load dispatching office etc.
 
Main Features
1, Adopts DSP technology
2, intelligent testing and monitoring fuction
3, Static switch with zero transfer time
4, The fifth generation IGBT drive inverter.
5, Non-source contact and RS232/RS485 monitoring
6, Complete separation of input and output
7, Complete separation of DC screen and mains
8, Adopts electric power standard cabinet to design
9, Low/over voltage, over current and short circuit etc protection
10, Large LCD display
11, Meter indicators.
12, Over 256 History record, the user can analyze and manage easily

2.1 Rectifier
Mains(single phase or three phase) directly send to rectifier after isolation transformer. When line is within +/-10% and load is within 100%, DC voltage stabilizes within +/-1%.
 
2.2 Inverter
It adopts SPWN technology, transfer DC voltage to AC voltage with sine wave through IGBT module. It can reduce distortion to a very great extent.

2.3 DC switch mode rectifier
When mains is under-voltage or failed, DC switch mode rectifier will supply power uninterruptedly and send signal in discharging mode. When battery voltage is lower than discharging limitted voltage, it will switch to standby power operation. When battery voltage is close to discharging limitted voltage, it will send warning signal.
 
2.4 Mains and standby power
There are double lines AC voltage. When mains is abnormal or failed, the UPS will switch to standby power. When they all have a failure, it will switch to DC mode rectifier.
 
2.5 Static switch
Can automatically switch between bypass and inverter.

2.6 Intelligent monitoring
Realize intelligent monitoring of UPS through RS232/RS485, non-source contact and electricity transmission signal