NPM60 Series

Microcomputer Measurement and Control Protection Equipment

Intelligent Energy Saving Safe Comprehensive

Widely used in commercial buildings, residential compounds and infrastructures to realize intelligent control and management.

PRODUCT OVERVIEW

NPM60 series microcomputer measurement and control protection equipment adopts microprocessor with highly integrated chip and maintenance-free design, and has good anti-interference performance; it has the functions of phase-to-phase instantaneous current protection, overload current protection, overvoltage protection, low voltage protection, zero sequence overvoltage protection, reclosing protection, timing zero sequence overcurrent protection, inverse-time zero sequence overcurrent protection, low-voltage zero sequence protection, transformer body protection and non-electrical power tripping protection. It is widely used in the fields of industry, commerce, residence and infrastructure, etc., to protect the circuits and equipment.

PRODUCT CHARACTERITICS

Intelligent display

Automatic screen lighting by infrared sensor；Primary main wiring diagram Switch position；Measurement of real-time value and other information

Reliable design

Industrial-grade components Professional anti-electromagnetic interference

High-performance processing

Adopts high-performance processor；Superior information storage capacity；Fast operation speed

Diversified communication modes

Supports dual Ethernet Dual RS485 communication interfaces

General protection

General protection can be adjusted according to the specific electricity environment on the site

High-precision measurement

Adopts frequency tracking technology to eliminate calculation deviation caused by fundamental frequency fluctuations, and accurately calculates fundamental frequency components, harmonic components and sequence components.

Electromagnetic compatibility characteristics

Anti-electromagnetic interference: EMC test

Professional anti-electromagnetic interference design ensures the reliability of the device.

Technical Parameters

Parameter type Indicators
Power supply Voltage range DC24V~AC/DC 265V
Frequency range 40Hz~60Hz
Maximum power consumption 10W
Power drop 200ms
Control power supply Rated voltage AC/DC 220V (110V should be specified when ordering)
Overload capacity Continues operation at 60%-120%Un
AC current circuit Rated current 5A (1A should be specified when ordering)
Power consumption ＜0.5VA
AC voltage circuit Rated voltage 100/√3V
Power consumption ＜0.5VA
Environmental characteristics Operating temperature -20℃~+65℃
Storage temperature -40℃~+80℃
humidity 95%
Mechanical strength Vibration resistance GB7261-2016-12.1 Class I
Impluse resistance GB7261-2016-12.2 Class I
Earthquake GB7261-2016-12.3 Class I
Insulation class Industrial frequency dielectric withstand capability 2.5kV/50Hz，1 min
1.2/50μs Impulse wave 5kV
Measurement and metering accuracy Current/Voltage ±0.2%
Phase angle ±0.5°
Power factor ±0.2%
Frequency ±0.01Hz
DC flow ±1%
Power ±0.5%
Kilowatt-hour ±0.5%
Selection table

NMP60 G L Y 2 1 5 M
Product code Protection category Type of protection Anti-tripping Power supply Input voltage Input current Additional functions
NPM60：
Microcomputer measurement and control protection device 		G:General protection
P: PT protection
B:Standby Self-input protection
D:Differential protection
N:Non-electrical protection
C:Public measurement and control
F:Anti-islanding
H:Low frequency and low voltage 		L:Line protection
T:Transformer
M: Motor protection
C:Capacitor protection
B:Busbar protection
R:Backup protection
X:PT parallel and harmonic elimination
E:None 		Y: Supported
N: Not supported		 2: AC/DC 220V
1: DC110V
4: DC48V
3: DC24V		 1: 100V
3: 380V
0:No voltage input		 5: 5A 1:1A
0:No current input		 M:Analog output

Note: Transformer differential protection measurement and control device should be used in paired with transformer backup protection measurement and control device.

Technical Parameters


  • Power supply

    Voltage range：DC24V~AC/DC265V

    Frequency range：40Hz~60Hz

    Maximum power consumption：10W

    Power drop：200ms

    Control power supply

    Rated voltage：AC/DC 220V (110V should be specified when ordering)

    Overload capacity：Continues operation at 60%-120%Un

    AC current circuit

    Rated current：5A(1A should be specified when ordering)

    Power consumption：＜0.5VA

    AC voltage circuit

    Rated voltage：100/√3V

    Power consumption：＜0.5VA

    Environmental characteristics

    Operating temperature：-20°C~+65°C

    Storage temperature：-40°C~+80°C

    Humidity：95%

    Mechanical strength

    Vibration resistance ：GB7261-2016-12.1 Class I

    Impluse resistance：GB7261-2016-12.2 Class I

    Earthquake：GB7261-2016-12.3 Class I

    Insulation class

    Industrial frequency dielectric withstand capability:2.5kV/50Hz，1 min

    1.2/50us Impulse wave：5kV

    Measurement and metering accuracy

    Current/Voltage：±0.2%

    Phase angle：±0.5°

    Power factor：±0.2%

    Frequency：±0.01Hz

    DC flow：±1%

    Power：±0.5%

    Kilowatt-hour：±0.5%

Selection table


  • Product code ：NPM60:Microcomputer measurement and control protection device

    Protection category：G:General protection、P:PT protection、B:Standby Self-input protection、D:Differential protection、N:Non-electrical protection、C:Public measurement and control、F:Anti-islanding、H:Low frequency and low voltage

    Type of protection：L:Line protection、T:Transformer 、M: Motor protection、C:Capacitor protection、B:Busbar protection、R:Backup protection、X:PT parallel and harmonic elimination、E:None

    Anti-tripping：Y: Supported 、N:no addtional functionAnti-tripping

    Power supply：2:AC/DC220V、1:DC110V、4:DC48V、3:DC24V

    Input voltage：1:100V、3:380V、0:No voltage input

    Input current：5:5A、1:1A、0:No current input

    Additional features：M:Analog output

Note: Transformer differential protection measurement and control device should be used in paired with transformer backup protection measurement and control device.

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