STS Smart Micro Grid System Single Phase Din Rail Mounted Kwh Meter
Din Rail Mounted Kwh Meter with Customer Interface Unit for Solar PV Plant
With extremely rapid growth of solar PV plants in Africa and South
Asia, more and more remote area get electricity power. Those solar
PV plants be called mini-grid, micro grid or off grid, effectively
provide necessary electricity for daily usage, lighting, phone
charge, radio and TV. In order to ensure that the provider of solar
PV generation, it is necessary to meansure the power consumption so
that the provide have enough profit to operate the plants, develop
more plants, furthermore promote the prosperity of the whole
Mini-Grid industry.
The CA168-S is designed for accurate measurement and prepayment
function. The project will have faster return of fund because of
the prepayment function. As the DIN RAIL type, MCU(Main Control
Unit) and CIU (Customer Interface Unit) design, The MCU (Main
Control Unit) can be installed in a locked box or high electric
pole, and only give the CIU to the users. The user can recharge for
his meter, and query balance, recharge record and amount, etc by
CIU. Also it is the most effective action for anti tamper.
Major Features
Compliance with the STS (Standard Transfer Specification) payment
protocol
Up to 80A current with Class 1 accuracy
Automatically disconnect for overload or no credit
Programmable power limit and low credit warning
Adjustable power limitation
Enhanced tamper detection for magnetic field, reverse connection,
cover open, etc.
Reverse energy measurement SRE
Information toggled by codes
Tamper trip protection : neutral missing
Other Benefits
a) Compact and slim-line design
b) PLC/ RF communication for MCU & UIU and same with back end AMI
server (On request)
c) Time of Use (TOU) , multi-rate, tariff control, holiday setting
d) 15 year designed life
e) Enhanced revenue protection through flexible payment control
Specifications:
Nominal voltage Un | 220/230/240 vol | Storage temperature | 40℃ to+85℃ |
Limited voltage | 70%~120%Un | Insulation level | 4kV rms for 1min |
Nominal frequency fn | 50-60Hz+5% | Impulse voltage withstand | 8kV, 1.2/50 μs |
Basic current(Ib) | 5A-10A | Air discharge | 16kV |
Maximum current(Imax) | 60A-100A | Immunity to HF fields |
|
Starting current(Ist) | 20mA | 80MHz to 2GHz with load | 10V/m |
Active energy constant | 1000imp/kWh | 100kHz to 1GHz without load | 30V/m |
Accuracy as Active energy to IEC62053‐21 | Class1.0 | Fast transient burst test | 4kV |
Power consumption in Voltage circuit | <2W <8VA | Meter shell Protection Rate | IP54(IEC60529) |
Power consumption in current circuit | <1VA | Insulation System Classification | Protective Class II |
Operating temperature | 25℃ to+70℃ |
|
