China Sn-P2 Power Load Management RTU Energy Kwh Meter Watt Hour Meter

SN-P2Power Load Management RTUGeneral DescriptionSN-P2serles power load management RTU Is a power demand side management product designed by our company which combines Ethernet technology,GSM/GP RS/CDMA mobile telecommunication technology,microelectronic technology and power measurement technology as a whole.
Functions
l Remote meter reading
Real-time meter reading,timing meter reading and relay meter reading can be realized and several protocols are compatible.
l Load management
Store load curve data for day,month and year. Record voltage,current ,maximum/ minimum of power, their happen time and times of over limit. Power control, electricity control,periods control and remote control can be implemented to the users according to real usage of power.
l Energy measurement
Special inner measuring chip Is adapted to measure parameters like voltage,current,power,power factor and maximum demand.
l Monitor for the abnormal
Abnormal events like voltage reverse phase sequence,current reverse polarity,overload,RTU power off/on and CT short/open circuit.
l Soft upgrade
Automatic upgrade for RTU software and communication protocol can be done locally or remotely and security of data In RTU Is guaranteed.
l Data compression
Data compression and encryption technology are adapted to ensure security of data.



Technical data and parameters
Communication Protocol: The RTU is compatible with several types of protocols. Telecommunication Channel: The RTU supports many kinds of communication ways:
l GSM/GPRS/CDMA
l Ethernet
l PSTN
Interface configuration
l 2-way RS48S used in meter reading and RTU cascade (one way of RS48S can be changed to CS port)
l way RS23 2 port and 1-way optical port used In local maintenance ,parameters set and data measurement
l way door contact used for monitor illegal open of the door
l 4-way relay output
l 4-way remote switch and 2-way pulse input
LCD Display: 128x64 lattice style large LCD with LED back light
Storage Capacity:
The capacity of Flash memory can be extended to 16MB. The data can be stored for more than 10 years after power off.
Accuracy:
Current measurement: class 0.5
Voltage measurement: class 0.5
Active energy measurement: class 1
Reactive energy measurement: class 2
Clock Error: ≤0.5s/d
Spare battery for clock: 3 .OV/960mAh,with more than 10 years service life
Working Power:
Working Voltage: rated voltage,±30%
Working frequency: 50Hz±5%
Spare battery used when power off: 3.6V/600 mAh,rechargeable nickel hydride battery
Working Environment :
Working temperature: -25ºC+75ºC
Storage temperature: - 40ºC +80ºC

Model SN-P2