line protection

Line Proteciton Module Applications Transformer substation with 10KV, 35KV, 66KV or 110 KV Configuration of protection functions (1) Alarm control wit electric bell and flute (2) Measurement of 8 channels off DC signals with the voltage range 0-5V or the current range 4-20mA Temperature measurement Oil pressure measurement The measurement of voltage of 380V power for stations (Transducers are necessary) (3) 8 switch input telecommunication values (with photo couplers) Theftproof alarm signal Fireproof alarm signal DC over voltage DC low voltage Other signals of voltage loss (4) Displaying the status of system operation Characteristics of Module Providing double CPU structure with self-check and cross-check Providing a large screen LCD in Chinese Providing RS-422(485) or RS-232 or CAN communication interface and remote operating function All protection functions can be switched by software Protection output can be switched by hard pressure board Applicable in AC or DC power supply Preset protection constant value can be modified remotely Other Technical Parameters Contact capacity of output relay: DC220V, 5A Allowable environment temperature: Normal working temperature: 0°C +45°C Utmost working temperature: -10°C- +50°C Anti-interference: Complying with the regulations of GB7261-87 and IEC255 Insulation and voltage withstanding: fulfill the regulations of DL478-92