KPM83 Microprocessor integrated digital protection relay

KPM83 Microprocessor integrated digital protection relay


KPM83digital protection relay is based on high-performance DSP processor and embedded real-time operating system, it is a protection and monitoring devices that integrated protection, monitoring and control, communications.

It is suitable for substations, power plants, industrial and mining enterprises, construction and other fields with voltage levels up to 35KV. It has such functions as protection, telemetry, remote mains, remote adjustment and remote control to achieve full control and management of it. , we can provide line protection and monitoring and control, transformer protection and control, motor protection and control, PT protection and control, capacitor protection and control, spare power source automatic throw-in device coupler protection and other product types.




 

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  • KPM83 digital protection relay Hardware:
  • Back plugging and unplugging module, separated the strong and weak electricity; the reinforced unit chassis is designed to resist strong vibration and interference. It can be decentralized mounted in the switch cabinet for running.
  • 32-bit microcomputer processor, large-capacity RAM and Flash Memory, strong ability of data processing, logic operation and information storage, fast running speed and high reliability.
  • 16-bit high-precision A/D, high measurement accuracy.
  • Running and event reports can be saved no less than 32 recent events
  • Graphic LCD, menu operation
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  • Main Features:
  • ◆ Reinforced unit chassis is designed to resist strong vibration and interference, especially
    suits for harsh environments. It can be decentralized mounted in the switch cabinet for running.
    ◆ All integrated circuits use military-grade standards to ensure higher stability and reliability.
    ◆ Using 32-bit MCU as CPU, configures large-capacity RAM and Flash Memory, with strong
    ability of data processing, logic operation and information storage, fast running speed and
    high reliability.
    ◆ 16-bit A/D is used for data acquisition, data acquisition is 24 points per week, and the
    protection measurement accuracy is high.
    ◆ The graphic LCD screen can display various operating states and data in real time, the
    information is detailed and intuitive, and the operation and debugging are convenient.
    ◆ Large capacity information record: It can save no less than 32 recent events historical
    reports, with action parameters, power-down retention, easy for accident analysis.
    ◆ Adopts MODBUS-RTU protocol with RS-485 communication interface. The networking is
    economical and convenient, and can directly communicate with the computer monitoring and
    gateway.
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  • Measurement accuracy:
  • Analog value measurement error ≤±0.2%
  • Power measurement error ≤0. 5%
  • Digital input voltage 220V resolution is no more than 2ms
  • Pulse input voltage 24V pulse width is not less than 10ms
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  • Power consumption
  • AC voltage loop:<1VA/phase(rated)
  • AC current loop: < 1VA/phase (5A); < 0.5VA/phase (1A)
  • Zero-sequence current loop:<0.5VA
  • Protection power loop:<12W (normal condition); <15W(Under the protectionaction)

 

 
                                                                                       Model
  Function
KPM KPM KPM KPM KPM KPM KPM KPM KPM
83L 83T 83TD 83C 83M 83MD 83P 83B 83U
Protection
function
Quick-break              
Differential quick-break protection              
Over-current I        
Over-current II          
Negative sequence over-current I                
Negative sequence over-current II                
Inverse time overcurrent                
Zero sequence overcurrent        
Unbalanced zero sequence over-current                
Overload            
Inverse time overload                
Overvoltage protection            
Zero sequence overvoltage              
Unbalanced zero sequence overvoltage                
Low voltage protection            
Low voltage protection I                
Low voltage protection II                
Low voltage inverse time zero sequence                
Voltage extraction                
Short circuit protection                
Overheating protection                
Post acceleration                 
Recloser                
PT disconnection          
Discharge PT overvoltage                
Non-electrical protection            
Low-frequency load shedding                
Power direction                
Ratio Difference Protection of Second Harmonic Braking              
CT break detection and blocking function              
Fault Recording                
Long startup time protection                
Charge protection              
Insulation monitoring                
Control loop disconnection                  
Measurement 
function
Circuit breaker remote control split output signal        
IA,IB,IC,UA,UB,UC,Ia2,Ib2,Ic2,U0, I0,P,Q,F,cosΦ,etc          
Iah,Ibh,Ich,Ia1,Ib1,Ic1                
Unbalanced current real-time display                
KPM83 Specification Jan 01,70
KPM83 User manual Jan 01,70

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