Sn-P1 Distribution Transformer  Monitoring RTU

Model NO.: SN-P1


Type: Energy Meter


Trademark: OEM




Usage: Multi-Functional Energy Meter, Watt-Hour Meter, Meter for Industry and Home Use, Standard Electric Energy Meter, Prepayment Meter, Reactive Energy Meter, Multi-rate Watt-hour Meters, Maximum Demand Meter


Customized: Customized


Origin: China




SN-P1


Distribution Transformer Monitoring RTU


General Description


SN-Pl distribution transformer monitoring RTU adapts high performance 32-blt RISC hardware platform and high accuracy energy measurement technology. Combining with the advanced Ethernet technology, GSM/GPRS/CDMA mobile telecommunication technology,the RTU has the advantage of powerful functions,simple manipulation, stable operation and easy maintenance.

Functions

l RTU hardware module; The RTU is combined with main control module, measuring module, anti-tamper module,data communication unit module. The data communication is compatible with Ethernet module and GPRS/CDMA mobile communication module and support Hot-swap.

l Software design module: The software of the RTU adapts embedded module programming modes and each module operates separately to facilitate Increase or deletion of function modules.

l Reliable power Is used to avoid crash of data communication module.

l Electricity meters of different protocols can be connected to the RTU at one time.

l High accuracy sampling technology. SOC measuring chip is adapted to ensure accurate and reliable of the data.

l Prompt report for the abnormal events.

l Large capacity Data Flash and embedded file management technology are adapted,the storage capacity can be extended to 32MByte to ensure safe storage for long history data.

l Automatic remote upgrade of application and communication protocol is supported to satisfy function extend In the future.

l Data compression and encryption technology are used to guarantee data security.

l Phase voltage,current ,power,power factor,maximum demand and harmonic content of voltage or current of each phase can be displayed.

l Multi-tariff energy measurement, bi-direction active energy measurement, four quadrant reactive energy

l measurement are supported and multi-tariff measurement for maximum demand Is supported as well.

l Reactive power over-compensation value and reactive power lack compensation value can be calculated.































































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 RS485 used In meter reading and RTU cascade (one way of RS485 can be changed to CS port)

l way RS23 2 port and 1-way Infrared 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 32MB. 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: 3.0V/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: -40ºC80ºC

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Product Categories : Watt Hour Meter