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Comparative analysis of electronic meters





No. p \ p The main characteristics of electronic meters Quantum Dxxx
( Shlumberger , Austria)
ZMU \ Bxx, Z.Uxx, Z.Vxx
( Landys & Gyr , Switzerland)
Alpha
( ABB VEI Metronika , Russia)
CE 6850
( Concern Energomera , Russia)
1 Purpose Three-phase combined 4-quadrant electronic meter with electronic rating device
2 Measuring principle Ensuring a smooth error curve and an increased allowable value of overloads due to the use of current transformers without a steel core and processing of current and voltage signals using the Mark-Space-Amplitude custom-made specialized chip developed by the company - MSA High linearity, long-term stability, wide dynamic range due to the use of DFS direct field sensors using the Hall effect and allowing direct measurement of electrical power in ZMU \ Bxx meters Measurement of current and voltage with the help of high-linear transformers with subsequent ADC conversion and calculation of parameters Measurement of current and voltage using high-voltage transformers without a steel core, followed by ADC conversion and calculation of parameters
3 The number of measured values 6 4 4 6
Active and reactive energy in 2 directions 4 4 no Yes
Information from external sources in a single pulse type (electricity, water, gas, etc.) 2 no no 4
4 Number of calculated values ​​:: Until 6 Up to 4; Up to 4
Active and reactive power Until 6 Up to 4 Up to 4
Total energy Up to 1 No Up to 1
Power factor cos Up to 1 No Up to 1 Up to 1
Summation of measured and calculated values Yes 1 Yes
Comparison of values ​​of 2 values,% Yes 1 Yes
5 Accuracy class:
Active energy module 0,2s-0.5s 0.2-0.5 0.5s
Reactive power module 1.0-2.0 1.0
6 Connection, current inputs Direct connection (100А) through measuring transformers (1А \ 5А) through instrument transformers (1A \ 5A)
7 Measuring information in pulse type Up to 2 discrete inputs No Up to 4 discrete inputs
8 Rated voltage, V 100 \ 220 \ 380
9 Current circuit, rated current, I n
With direct power on 120A \ 65A Up to 100A -
When transformer included 1A \ 5A
Measured range,% I n 1% -200% 5% -200% 1% -150%
Load capacity:
measuring 10A
thermal 12A
short circuit 0.5s 20xImax 10xImax 20xI
10 Nominal frequency 50Hz + \ - 5%
eleven Verification interval, years More than 15 years 8
12 Display LCD indicator, interchangeable with additional symbols
13 Life time More than 15 years 30 years
14 Number of digits 4 \ 7 \ 8 4 \ 7 3 \ 6 lines * 16 familiarity
15 Sign height, mm 12 8 8 5
16 Number of load registers (demand) 8 2
17 Status registers (Energy, load, inputs, outputs, presence of the supply phase) 6 Partially
18 Calendar hours \ timer The built-in real-time clock is intended for the purposes of billing and imposing time stamps on measurement results and occurring abnormal situations.
19 Accuracy of a quartz controlled clock, s / day Standard IEC 1038, 10 ppm over the entire temperature range. 0.43s / day ? 5 ppm (0.43sec / day) 32.768 kHz quartz 0.5 sec \ day
20 Duration of operation from backup power, lithium battery 5 years 1 year 5 years 9 years
21 Synchronization of the built-in clock Quartz \ network \ external Quartz \ external
22 Tariff functions
Number of tariff zones Up to 15 Up to 8 4 Up to 8
Number of daily fare options (Spring, Summer, Autumn, Winter + Holidays + Weekend) To 10 2 (winter, summer) Up to 15
The number of options for building tariff schedules From 5 options for 15 tariff zones to 10 options for 8 tariff zones 12
Number of seasons 6 4 2 12
Number of holidays and weekends 120 Provided for No 32
Number of energy registers 12 8 6
Number of load registers 8 4
Cos register ` no 1 Up to 1
Register archive depth 15 archived values Not documented Up to 128 days
The duration of the integration period, min. 1,2,3,4,5,6,8,10,12,15,20,25,30,45,60,75 1 ... 60 1,3,5,10,15,30,60 1,3,5,10,15,20,30
Tariff Management Method External control \ from the built-in clock and calendar From built-in clock and calendar From built-in clock and calendar
23 Load Graphs by Measured or Estimated Values For 4 sizes For 8 sizes For 4 channels For 4 values
Accumulation period, min. 1,2,4,5,10,15,30,60 min. 1,3,5,10,15,20,30
The amount of recorded information (Number of graphs \ accumulation period \ number of days) From (1 \ 15 \ 400) to (4 \ 3 \ 14) 2 \ 15 \ 200 From (4 \ 30 \ 320) to (4 \ 5 \ 53) From (48/128) to (240/5)
Reading information Visual, serial port (optical / electrical) Visual, serial port (optical / electrical), parallel port.
24 Electronic meter interfaces:
To enter information:
Availability of inputs for input of measurement information about energy resources in the number of pulses Up to 2 inputs (24V, more than 10mA, frequency not more than 20 Hz, pulse duration not less than 25 ms) No Up to 4 inputs (24V, more than 10mA, frequency not more than 20 Hz, pulse duration not less than 25 ms)
To display information:
Electronic relays for the formation of output pulses proportional to the measured values, control and signal 0,1,2,3,4 outputs, the duration of pulses per kWh is programmable Up to 8 pins (24V, more than 10mA, frequency not more than 20 Hz, pulse duration not less than 25 ms)
IRPS, “current loop” No 1.5 km, 300-19200 baud, poll> 1 time per hour Yes
RS-232 Standard МКТТV24, 4-wire, galvanic isolation,? 9V, up to 19200 Baud 1.5 km, 1200-19200 baud 15 m, 300-36000 baud
RS-232 multipoint (multipoint) Up to 4 counters to one modem No
RS-485 “current loop” serial interface Standard IEC 1107, passive 2-wire current loop, galvanic isolation, 20 mA, up to 9600 baud, connect up to 4 meters Use of formatted standard commands (as per IEC 1107), 20mA, 27V 1.5 km, combines up to 32 meters, 1200baud - 19200bod 2 km, combines up to 32 meters, 300baud - 19200bod
Built-in modem Compatible with the requirements of MKTT, (300, 600, 1200, 2400) baud. Modes “Answering Machine” and “Auto Dial” No no
Optical communication port Standard IEC 1107, 300 Baud - 19200 baud, RS-232, 2m Standard IEC 1107, 300 Baud - 24,000 baud, RS-232, 2m
Data safety in case of power failure Unlimited time, flash memory Up to 5 years with battery Unlimited time, flash memory
25 Counter Hardware Platform Processor ST90R50, 11.0592 MHz, ROM - 128kb, address bus - 17 bits, data - 8 bits, flash - memory - (8-64) kbytes, custom measuring MSA-circuit Implementation of MSA technology on analog processors, flash - memory Specially designed for the counter microcontroller and VLSI measurement, containing a programmable digital signal processor with three built-in ADC Microcontroller and VLSI measurement, containing a programmable digital signal processor with three built-in ADCs, processors, flash memory
26 Meter self test Once a day Interval -30 min
27 Protection of commercial information 3 password levels plus hardware lock 2 password levels plus hardware lock
28 Additional features of individual models in this series of meters The Quantum Q1000 meter provides current, voltage, and phase power measurements, phase angle measurement, indication of the source of harmonic distortion. The “Alpha Plus” meter provides measurement of current, voltage, and phase power, measurement of phase angle, measurement of network frequency, indication of the source of harmonic distortion The TsE 6850 meter provides current, voltage, and phase power measurement, measurement of phase angle, network frequency measurement, indication of the source of harmonic distortion
29 Characteristics of the manufacturer Shlumberger is a transnational corporation headquartered in New York with offices in Australia, Canada, the UK, Singapore, South America, South Africa and Europe. Manufacturers of measuring equipment in Europe - enterprises in Germany, France, Austria, Hungary. Landys & Gyr is a Swiss company that is part of the ElectroWat Group concern, which has about 40,000 workers and employees. The area of ​​joint cooperation is the production of means, systems of accounting and energy management. ABB VEI Metronika Plant manufactures meters in Russia (Moscow) under license and from components of ABB Power T & D, USA Concern Energomera OJSC is a leading Russian enterprise for the development and production of electronic meters and metrological equipment. In the domestic market and in the markets of the near abroad since 1995. The Concern includes 4 factories of the electrotechnical industry and 3 specialized design bureaus.
thirty Year of formation of the company 1878 (120 years) 1896 (102 years) 1994 1995
31 Number of employees 51 000 16,000 - -
32 Annual sales in Europe $ 2779 million
33 Being in the Register of measuring instruments of Ukraine No. U805-97 from 1.08.97g. ZB - № У284-94 with 1.09.94g. ZU - № У285-94 with 1.09.94g No. U452-95 from 1.08.95g. All products of the Concern are listed in the State Register of Ukraine on October 12, 2001.
34 Power consumption meter Less than 3.4 VA Less than 3.6 VA Not more than 6 VA
35 Dimensions 178x69x368.5 mm 262x180x180mm 177 * 282 * 85
36 Weight, kg 1.6 1.6 3 3
37 Protection class Dust, water protection IP52
38 Electromagnetic compatibility According to IEC 687 and IEC 1036
39 Operating temperature range, 0 С -30 0 С… + 60 0 С -20 0 С… + 50 0 С -40 0 С… + 60 0 С -25 0 С… + 55 0 С
40 Power requirements, reserve, etc. 3-phase power It works in the presence of at least 1 phase, the ability to connect an external backup power source.
41 Service life, years Not less than 20 Not less than 24 thirty thirty
42 Manufacturer's Warranty 12 months 3 years 3 years