HT CT Meter
HT CT Meter
Description
Based on up-to date addax technology for residential metering
- AD13A.6-3-1
- MULTI-FUNCTION & MULTI-TARIFF
- THREE-PHASE ELECTRONIC METERS DESIGNED FOR USE IN AMI/AMR SYSTEM
Advantages :
Active energy (export/import) Reactive energy (4 quadrants) Apparent energy
Measured Quantities
Calculation of total harmonic distortion factor
Multirate registration
Built-in clock
Event Log
Load profile
Protection level
Reserve power supply
Standard data model, open protocols
Optical port
Sensor of meter cover opening
Sensor of terminal block cover opening
Magnetic field sensor
RF channel
Authentication & Encryption
DLMS/COSEM Support
- Standard data model
- Standard communication protocols
- Interoperability
Built-in Clock
- Real Time Clock, accuracy 0.5 s.
- IEC 62052-21 standard compliant
- External synchronization
- Sleep mode, battery
- Daylight saving time support
Measured Quantities
- Active energy, class C, export/import
- Reactive energy, class 2, 4 quadrants
- Apparent energy
- Power, Max Demand
- integration period: 15’, 30’, 60’, 1 day
- average interval: day, month
- Phase voltage/current, instantaneous value, RMS, neutral current, difference between phase and neutral currents
Metering data
- Actual meter readings
- Periodic meter readings: daily, monthly
- Interval meter readings: 5’, 10’, 15’, 20’, 30’, 60'
- Timestamp
Data Storage
- Non-volatile memory
- Capacity depends on data type and number of parameters and can be expanded for one type of data on the expense of another
- Up to 3 interval profiles and 1 billing profile. For example:
- 15 minutes interval profile: 6 parameters for about 63 days
- hourly interval profile: 6 parameters for about 13 days
- monthly billing profile: 6 parameters for about 110 months
Multi-rate Metering
- Up to 6 tariff registers
- Up to 12 changeovers per day
- Tariff indicator is displayed on LCD and transmitted to an external system
- Active and passive tariff plans, configurable activation time of the passive tariff plan
Events & Alarms Handling
- Continuous control of current state of meter functional nodes and alarms/events, timestamps
- Standard set of events processing including: registration in the special logs and registers, event report sending, states displaying, load switching off on special cases
- Different types of event logs
Built-in Display
- LCD, 8 digits, configurable decimal place (up to 3 digits)
- Special symbols, data identification according to IEC 62056-61 (OBIS)
- Metering data/text displaying
- Service/client lists of parameters
- Manual/automatic screens scrolling
- Display self-testing
- Configurable backlight mode
- Sleep mode
Energy Quality Control
- Quality Indexes:
- average voltage
- voltage sags and swells
- outages
- network frequency
- THD for voltage/current harmonics
- Remote or local configuring of parameters thresholds
- Events registering
Fraud & Theft Protection
- Continuous monitoring, including sleep mode time
- Fraud types under control:
- meter case cover opening
- meter terminal block cover opening
- strong external magnetic field
- Hall sensor for magnetic field detection
- Protective seals
- Events registering
Meter Self-control
- Built-in test for continuous self-control
- Quick response on severe error
- Events registering
Information Security
- Communication encryption (AES-GCM-128 security suite)
- Data access according to access rights stated
- Firmware protection
- Events registering
Data Transmission
- Data transmission on demand or by schedule
- Request types:
- Data concentrator request (via communication channel)
- Hand Held Unit request (via optical port)
Calendar
- Up to 12 seasons per year
- Up to 7 daily profiles per week
- Up to 30 special days per year
- Support of movable holidays
Test Outputs
- Outputs: 2 optical outputs (LEDs), optical port
- Parameters under control: active energy, reactive energy
Communications
- Built-in RF modem with internal antenna.
- Modulation: 2-FSK
- G3-PLC compliant MAC layer
- Upper layers: 6LoWPAN, IPv6, UDP, DLMS
- Carrier frequency – 432 MHz
RS-485 Interface
- Allows connection of external devices to a single RS-485 bus
Optical Port
- IEC 62056-21 standard compliant
- Data transmission rate 38 400 bps
- Possibility of local data exchange and meter parameterization
Software Upgrade
- Remote (via communication channel) or local (via optical port)
- Events registering
Meter Parameterization
- Remote (via communication channel) or local (via optical port)
- Access rights assignment from HES
- Events registering
Backup Power Supply
- Battery for meter backup supply in sleep mode
- Battery lifetime - not less than 20 years
| Accuracy Class: | |
|---|---|
| Active energy | C |
| Reactive energy | 2 |
| Reference current, In | 5 A |
| Maximum current, Imax | 10 A |
| Minimum Current | 0.05 Iref |
| Starting current: | |
| Active energy | 0.004 Iref |
| Reactive energy | 0.005 Iref |
| Reference voltage, Un | 3×57,7 V |
| Voltage range | 0.8 Un ... 1.2 Un |
| Reference frequency | 50 Hz |
| Meter constant: | |
| Active energy | 50000 imp/kWh |
| Reactive energy | 50000 imp/kvarh |
| Temperature range | -40°C … +70°C |
| Internal clock | quartz crystal 32 kHz |
| Clock accuracy (at 25°C) (IEC 62052-21) | ≤0.5 s /24 h |
| Data transmission rate via OFDM (on physical layer, with coding): - RF | 38,4 kbps |
| Inherent consumption of current circuit, not more (IEC 62053-61) | 1 VA |
| Inherent consumption of voltage circuit, active/total, per phase (with connection to communication interface), not more (IEC 62053-61) | 2 W / 10 VA |
| Insulation strength (IEC 61010-1-90) | 4 kV, 50 Hz, 1 min |
| Impulse voltage (IEC 60060-1) | 12 kV, 1.2/50 μs |
| Electrostatic discharge (IEC 61000-4-2) | 15 kV |
| High frequency radiant field (IEC 61000-4-3) | 10 V/m |
| High frequency interferences (IEC 61000-4-4) | 4 kV |
| Surge immunity test (IEC 61000-4-5) | 6 kV |
| Mean total lifetime, not less | 20 years |
| Dimensions | 280 x 180 x 66.5 mm |
Design
- Compliance to DIN 43857 standard specifications
Housing
- Light-tone non-flammable polycarbonate
- IP54 protection against water and dust
Mounting
- By 3 fixing points or on DIN rail (35 mm)