Multifunction digital motor protection relay with leakage current transformer

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KPM60 Digital motor protection relay

KPM60 low voltage multifunction digital motor protection relay is suitable for the application of three-phase asynchronous motor with rated voltage of 380V to 660V and rated current of 5-500A. It can realize the functions of protection, control, measurement and fault management of the motor, greatly simplifying the secondary control protection circuit of the motor, providing perfect protection and control measures, and implementing the network camp of the motor based on various presidential communication methods.

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KPM60 Specification KPM60 User manual

KPM60 Multifunction digital motor protection relay
Full electrical parameter measurement:
U_L-L, U_L-N, I, F, PF, P, Q, S, active and reactive energy, etc.
High accuracy:
U Class 0.5; I Class 1.0.
Leakage current Class 1.0.
PF Class 1.0.
P Class 2.0; active and reactive energy Class 2.0.

Basic protection function:
Overtime start-up, overload, stall, phase failure, current balance, grounding, underload, blocking, etc.
Optional protection function:
Leakage protection, temperature protection, overvoltage protection, undervoltage protection;
underpower protection, power factor protection, phase sequence protection, etc.

Control mode:
protection mode, direct start, bidirectional reversible start, star / triangle start, self-turning transformer start, resistance barrier start, etc.
DI & DO:
8*DI, 4*DO

Record function:
10 recent fault information, time information, fault site electrical parameters.
Communication: MODBUS RTU / PROFIBUS-DP
Diagnostic data：
Self-test information；Current/ Auxiliary contact feed back error；
Motor fault alarm information; Motor fault trip information;
Running cooldown time

Working power source	Operating Voltage	AC85~265V/DC80~300V
	Rated power	＜5VA
Input voltage	Rated voltage	380V-660V
	Frequency range	45~65Hz
Input current	Rated current	5A，32A, 100A, 250A, 500A
	Frequency range	45~65Hz
Input/Output	Switch value input	8-way passive main line contact DI input, internal supply DC24V power source
	Relay output	4-way DO output，Contact capacity 250VAC/5A，30VDC/5A
	Analog output	Output range 4~20mA，Programmable
	Temperature input	Measure range 0℃~100℃
Measurement accuracy	Current	±1.0%(10%Ie~120%Ie)
	Leakage current	±1.0%(5%Ise~100%Ise)
	Voltage	±0.5%(20%Ue~150%Ue)
	Frequency	±0.02Hz(45Hz~65Hz)
	Power factor	±1.0%(-1~1)
	Energy	±2.0%
	Power	±2.0%
Communication	Communication interface	RS485，Photoelectric isolation interface
	Communication protocol	Modbus-RTU，1200~38400bps Profibus-DP，9600~12Mbps
Electrical insulation	Power frequency withstand voltage	AC2kV/min~1mA Input-output-power source （GB/T 13729）
	Insulation resistance	＞50MΩ （GB/T 13729）
	Impact voltage	5kV（Peak），1.2/50us （GB/T 13729）
Working environment	Operating temperature	-25℃ ~ +70℃
	Relative humidity	5%~95% No condensation
	Storage temperature	-30℃ ~ +75℃
Electromagnetic Compatibility	Surge (impact) immunity	GB/T 17626.5-2008，Level3
	Electrical fast burst immunity	GB/T 17626.4-2008，Level3
	Electrostatic discharge immunity	GB/T 17626.2-2006，Level3
	Power frequency magnetic field immunity	GB/T 17626.8-2006，Level3