Download one-phase static meters ze 110

One-phase static meters
ZE 110
display, consumption and supply,
4 tariffs
ZE 110 series meters are sophisticated, electronic, fully
programmable units used for monitoring and control of power
demand. They can meet all requirements associated with power
market liberalization as well as those for remote data transmission
and for combined readout of different kinds of energy. Owing
to their both SW and HW design, they can be modified or new
functions can be used that are required by customers. This concept
is unique for all makes (M and D) and all advantages of the meter
can be thus utilized – including memory registers and different kinds
of communications.
Measuring system
ZE 110 meters are one-phase static one- to four-tariff units of active energy Class
1 and 2 according to ČSN EN Standard No. 62052-11, 62053-21 used for direct
connection.
The basis of the engineering solution is a microprocessor, which has all main
functions. It measures signals from current and voltage sensors, makes calculations,
operates display or dials, takes tariff inputs, communicates through the optointerface, generates both IR and SO pulses and stores selected values and data
into the memory and accommodates characteristics of the meter to customer´s
requirements and needs.
The measurement is made using the measuring system in which it is possible to
measure, in the measuring range of the meter, even when continuous and harmonic
components (both voltage and current) are present in the circuit measured. Negative
effects of direct-current components are eliminated in each measuring period.
Measuring system calibration is performed using software, the meter contains no
mechanical adjusters. This system ensures the stated accuracy of the meter with
great reserve.
The meter measures and stores the following basic values and (if necessary)
displays them:
●● Both demand and supply for each of four tariffs (i. e. 8 power registers).
●● Time of scanning in each register (i. e. 8 time registers) for all demand and supply
registers.
●● Cumulative registers for total period of consumption and total period of supply.
●● Maximum current and maximum output.
●● Working time, number of mains outages, time after resetting maxima of current
and output.
ZE 110 measures (and displays, if necessary) the following secondary values:
●●
●●
●●
●●
Technical specification No. A – 7 • 17 • 08, March 2009
Instantaneous rms (root-mean-square) voltage.
Instantaneous rms current.
Instantaneous output.
cos φ.
The range of current measurement
The option of the display for one- or two-tariff electricity meters
ZE 110 units measure in the range from build-up current up to 80 A
with a sufficient reserve as given in the standard (both direct-current
and harmonic components). The meter measures with the stated
accuracy in the range of 80 A to 100 A, if the direct-current component
does not exceed 57 A.
Display of numerical data
Symbol of units
Inputs
ZE 110 meters are furnished up to two external inputs for tariff
switching.
Tariff switching is performed using AC voltage coming to appropriate
terminal of the unit. One pole of inputs can be alternatively substituted
with inner connection with L1 (or from different phase) or A – see
terminal board connection.
ZE 110.DH and ZE 110.DU units are also quipped with external inputs
for tariff switching, but they are not used if the tariff is controlled via
galvanically separated switches from the inserted module.
Active tariff indication can be seen in LCD display or on LED diode of
the dial in case of a mechanical dial.
ZE 110.meters can be optionally furnished, besides MRC module,
with a module with two-way communication and so the unit can be
connected into the remote readout system (e. g. LONEL module), and
used, e. g., for measurements of consumption of heat, water or gas in
households.
Outputs and communication
The meter is equipped with LED testing output, constant for
conversion of drawn energy to the number of sent out pulses is
programmable.
The unit can be furnished with interface S0 ČSN EN Standards No.
62053-31 / DIN 43864. The circuit is galvanically separated using an
opto-coupler to the output of which a transistor with open collector
is connected and it sends out pulses with frequency corresponding
to consumed power. Both the number of pulses and their length are
programmable.
All types of meters of this series including those with mechanical dial
can be optionally furnished with opto-interface according to ČSN EN
Standard No. 61 107, var. DLMS.
ZE 110.DH are equipped with two output switching contacts of
memory relays whose position can be monitored visually through the
transparent cover. The position of those relays can be controlled via
electronics of the module, which is always separated galvanically from
electronics of the meter. Appliances can be controlled using these
relays.
Another group of optional modules enables two-way communication
via up-to-date communication protocols: RS 232, RS 485,
LONWORKS (LONEL) system, M-BUS, and the like, and via number
of transmission channels from the metallic circuit via low and high
voltage network, opto-couples, radio, fixed-line modems, up to GSM,
and the like, is also available.. Measuring outputs from different
energy sensors can be connected to the meter, too, and cumulative
data on power consumption in, e. g. from the households, can be
transferred to the suppliers´ customer systems.
Display of measured values
In ZE 110.DO, 110.DH, and 110.DU meters, LCD displays are used.
Such units can be supplied as one-, double-, three or four-tariff
units. Their displays can indicate, beside the measured value or
consumption (or even supply) of active power for T1 to T4 tariffs,
even other data such as effective values of current or voltage,
instantaneous output, maximum current, maximum output, cos φ,
number of voltage outages and working time. The active tariff (in
which the meter reads consumption and/or supply) is shown as an
appropriate T1 to T4 and is not underlined. The underline indicates
the tariff for which currently shown data are valid (e. g. consumption
measured in this tariff).
Technical specification No. A – 7 • 17 • 08, March 2009
Displayed tariff
Indication of magnetic field
Symbol of phases Bar chart Active tariff
It is possible to choose, using the meter configuration, those values
that will be gradually shown in the display as well as the rate of their
exchange (rotation).
The values measured are stored to registers and they can be read
after IR interface (the mechanical one can be used in LCD models).
LCD display meters can indicate even the results of the following
operations with registers for each tariff (selectable number of decimal
places): consumption, supply, consumption + supply, consumption supply (sum of absolute values of consumption and supplies can be
shown as well as absolute values of sums or remainders of demands
or supplies, and the like). Models equipped with mechanical counters
can show in their dials either consumption only (models M1, M2) or
consumption and supply (model MK).
A suitable filter for peak values can be set via the meter configuration
if storage of maximum values is required. For better information, a
rough value of instantaneous output is always indicated in the meter
either in LCD display using a bar chart (if current is lower than starting
value, the bar chart is not shown) or, in mechanical models, using
different repeating of LED diode blinking. If currents goes in a reverse
direction (it is scanned into supply registers) the bar chart is blinking,
in mechanical variety LED diode is not blinking.
Opto-interface
A direct local readout is possible owing to the opto-interface
specified in ČSN EN Standard No. 61 107. It is realized using the
optical head applied to the defined place on the meter housing. Its
electric input/output is RS 232 interface for connection to a PC port
or to a connector of a portable terminal. If required, even units with
electromechanical counters can be equipped with optical interfaces.
Indication components
LEDs in red of infra-red region (as it is required by the customer) can
be used for calibration. The diode sends light pulses with frequency
corresponding to power measured according to the unit constant,
which is programmable, typical value is 10,000 imp./kWh.
Design
Electrometers ZE 110 series are produced in two different
constructional modifications – they have different width of cover.
Standard width is 125 mm which allows installation of all modifications
including design with mechanical counters and installation of all
modules (below called Design A). Short modification 110 mm has only
limited possibilities for installation of modules (in view of limited space)
and it exists only in version with display (below called Design B).
The design is conventional and time-tested and should be resistant
against hard working conditions, enable easy operation and be
resistant enough against unauthorized demand. Owing to the design,
the installation is easy and it is carrying out using three screws on socalled triangle – see dimensioned sketches.
Display in models ZE 110.DO, ZE 110.DH and ZE 110.DU is situated
in the upper half of the unit, symmetrically in the vertical axis. Display
in model ZE 110.DB is situated in right upper half of the unit.
ZE 110.DH contains MRC module which is galvanically (except for
mains supply) separated from the electronics of the meter itself.
Description of this module can be found in a separate technical
specification.
Inserted MRC modules can be programmed by the manufacturer if it
has been agreed.
Technical data
Basic information
Accuracy class
Meter constant (testing LED output)
Connection
Nominal voltage Un
Range of working voltage
Self-consumption (feed circuits including power supply) - without any module
Self-consumption of electric circuit
Nominal frequency
Service frequency
Basic current Ib
Maximum current Imax permanently
Build-up current
Maximum range of the measurement
class 1 or 2 to as given in ČSN EN Standard No 61036
programmable, usually 10,000 imp/ 1 kWh
direct two-conductor
230 V
0,75 Un up to 1,15 Un
max. 0,7 W, max 8 VA cap.
max. 0,01 VA
50 Hz
45 to 55 Hz
as required 5 A
as required possible in whole multiple Ib from 40 A to 80 A
lower than 15 mA (0.3 % Ib)
15 mA to 100 A
Tariff switching – outside terminals
230 V
Switching voltage Ut
Permissible range
0,75 Ut to 1,15 Ut
Maximum consumption at Ut = 230 V
1,5 mA
Tariff switching – ZE 110.DH
MRC - selectable assignment of the tariffs to galvanically separated switches (≡ function identical as with relays K1 and K4).
Outputs
Testing LED output
Pulse output S0
●● S0 output connection
●● Number of pulses on S0
●● Width of pulses on S0 in ms
●● Supply voltage – nominal
●● Supply voltage – maximum
●● Current
●● Maximum line length
programmable, usually 10,000 imp./ 1 kWh
Class A according ČSN EN Standard No. 62053-31
direct, two-conductor, open collector type output
programmable from 0.15 do 10,000 imp./1 kWh
programmable, typical value 40 ms
DC 24 V
DC 30 V
DC 5 to 15 mA
1000 m
For ZE 110.DH only
number of output relays
switching ability 1 relay permanently
maximum total current for 2 relays
electrical life of the output relays (maximum load)
mechanical life of the output relays
2
IC permanently 8 A, cos φ = 1
Itot 16 A, cos φ = 1
min. 2 x 105 cycles O/C
min. 1 x 1066cycles O/C
Resistance against voltage pulses
Pulse voltage
Pulse shape
8 kV
1,2 μs / 50 μs
Electromagnetic compatibility
Electromagnetic discharges
●● test voltage
●● number of discharges
High frequency electromagnetic field
●● demand factor 3, both vertical and horizontal polarization
Fast transient effects (groups of pulses)
●● duration of the group of pulses
●● period of the group of pulses
●● duration of the test
●● test voltage
Radio interference suppression
●● peak course of noise voltage in the band
●● peak course of electromagnetic field intensity in the band
●● Resistance against interference in lines
Weight, dimensions and cover
Weight – without module
Width
Height:
●● with the lug pushed down
●● including the pushed out lug
Depth
Clamping as given in the dimensioned sketch (width x height)
●● dimensions of the housing
●● working position
as given in ČSN EN Standard No. 61000-4-2
8 kV
10
as given in ČSN EN Standard No. 61000-4-3
as given in ČSN EN Standard No. 61000-4-4
15 ms
300 ms
60 s
4 kV
as given in ČSN EN Standard No. 55022
0,15 to 30 MHz
30 to 1,000 MHz
as given in ČSN EN Standard No. 61000-4-6 0.15 – 80 MHz
cca 0,6 or 0,7 kg
105 (129) or 125 mm
169 or 204 mm
216 or 225 mm
61 or 70 mm
105 x 155 or 175 mm
correspond to DIN Standard 43857
vertical
Technical specification No. A – 7 • 17 • 08, March 2009
Current carrying conductor connection
Terminal diameter
Maximum conductor cross section:
●● cable
●● strand
Minimum conductor cross section:
Fastening bolts
●● average of bolt-head
●● cross slot
●● slot
●● tightening torque
25 mm2
16 mm2
4 mm2
M5 x 10 or M6 x 14
6,5 mm
Z type, size 2 as given in ISO Standard No. 4757
min. 1,06; max 1,2 mm
2,8 or 3 to 5 Nm
The other connections
Terminal diameter
Fastening bolts
Maximum tightening torque
3,2 mm
M3 x 5 or M3 x 7
1 Nm
Auxiliary terminals
Terminal cross-section
Fastening bolts
Maximum tightening torque
2.6 x 4 mm
M3 x 6
1 Nm
7,2 or 6,8 mm
The other technical parameters meet ČSN EN Standard No. 61036 (published in December1997 and A1 modification of 2001).
Optical communication
Optionally, the meters contain optical infrared communication
interface as given in ČSN EN Standard No. 62056 and 61107. All
communication activities must always meet IEC Standard No. 1015,
mod. C with switching communication rate. Three modes given in the
above standard are used in the meter:
●● Program mode in which configuration of the unit takes place
●● Manufacturer´s specification mode containing service orders
●● Readout
How to start communication
The beginning of communication can be either direct (with address)
or indirect. The address can have up to eight characters (it may also
include ASCII characters) and it is stored in the meter memory and
can be set or changed using configuration of the unit. If the address in
the meter is blank, the unit responses to all addresses. So-called “fast
identification” can be set via the configuration when responses are
reduced from 200 ms down to 20 ms (they can be freely set including
the response following the switch of communication rate) when the
communication direction is switched.
The link up rate can be configured, but typically it is set to 300 Bs as
it is given in the standard. After linking up, the communication rate
can be switched in the range of 300 to 9600 Bd (higher rates must be
supported by the optical head used).
Technical specification No. A – 7 • 17 • 08, March 2009
Program mode
The meter is configured in this mode as well as parameterization is
performed during production (it is protected using interconnection at
the customer).The access to the program mode is closely protected
by strict SW guard – “access level 3” as given in the standard. If
you want to enter the mode you must know the password (stored
in configuration of the unit) and cryptographic algorithm. A random
number generated by the unit is used at the entrance of the algorithm
so that it could not be found on the basis of the communication.
With default setting (unless the customer wants otherwise) HW locks
changes of all configuration parameters and resetting (modification of
the content) of selected registers.
Manufacturer´s specification mode
Two commands protected with their separate passwords are
implemented in this mode. It is the command to delete maxima and
that used for transfer to the calibration mode.
Readout
The readout always includes all registers with maximum accuracy
which can be achieved. Names of the registers (e. g. 1.8.1) are
selectable and any register can be eliminated from the readout. The
readout unit or superior computer are fully responsible for further
possible operations with the registers or a change of their order in
the print-out. Configuration can be set in such a way that maximum
registers are deleted after the readout is successfully finished. If it is
forbidden, maximum values can be deleted via an order in the mode
of “manufacturer´s specification”.
Wiring diagram of the terminal board – connection of tariff switching
double-tariff – tariff extraction on N
four-tariff – tariff extraction on L (in the similar way to N)
double tariff – free tariffs extraction
four-tariff – tariffs extraction on terminal 15
Terminal board of the meter
Table 1 – two-tariff switching
E1 is a signal for tariff switching
Table 1 – four-tariff switching
E1 and E2 are signals for tariff switching
European - E
Czech - C
Tariff
E1
E1
European - E
1
0
1
1
0
0
1
0
2
1
0
2
0
1
0
0
Control with terminal
13
13
3
1
0
1
1
Control with ADD module
K4
K1
4
1
1
0
1
Control with terminal
13
15/33
13
15/33
Control with ADD module
K4
K1
K1
K4
Tariff
E1
Czech - C
E2
E1
E2
1 means “active” input, i.e. that there is voltage between tariff inputs (e.g. in case of the inner interconnection to L1, it is in case of the
connection of the tariff input to N),
0 means “inactive” input
Technical specification No. A – 7 • 17 • 08, March 2009
Dimensioned sketch
Technical specification No. A – 7 • 17 • 08, March 2009
HOW TO DISPOSE OF FUNCTIONLESS PRODUCTS
AND PACKAGING MATERIAL:
Type identification
ZE 110. # #. # # # # # # - # #
with display, 1 to 4 tariffs
D0
with display and MRC module, 1 to 4 tariffs
with display, for additional fitting of an optional
module (*), 1 to 4 tariffs
DH
DU
without optical communicatio
0
with optical communication
1
without tariff control
0
inner tariff connection to L1
1
internal tariff connection is led to terminal 15
internal tariff connection to N
internal tariffs connection, general-purpose
Products after finishing their life must be handed over to specialized
companies who perform separation of the used materials and/or their
recycling and useless products should be disposed of as stipulated in
the Waste Act.
The product does not contain any radioactive, carcinogenic or any
other harmful materials. All plastics used can be recycled.
Packaging materials:
special packaging boxes can be recycled,
the boxes used should be given to companies which can use them as
secondary raw materials or energies.
THE MANUFACTURER´ S NOTICE
4
5
6
without tariff switching
X
tariff switching – Czech logic
C
tariff switching – European logic
tariff switching – Customer logic
E
Z
SW versions (customer version)
00 - 99
one-tariff
1
double-tariff
three-tariff
2
3
four-tariff
one-tariff without S0
double-tariff without S0
three-tariff without S0
four-tariff without S0
HW versions (customer version)
4
5
6
7
8
00 - 99
(*) – that module type must be specified by agreement with the
manufacturer
The meters designs produced commonly are blackfaced.
Other types can be ordered only after previous deal with the
manufacturer.
An integral part of type identification of the meters is the direction of
the power measured
ODB
demand
ODB/DOD demand and supply
This will be specified in the customer sheet, which is a part of the
contract.
The product can be used safely. The manufacturer issued the
Statement of Conformity as specified in § 13 of Law No. 22/97.
In spite of this, however, the manufacturer draws attention to possible
risks resulting from incorrect operation or use of the product:
●● Installation and maintenance must be carried out only by trained persons with
electrotechnical qualifications who will tell the customer all the conditions of safety
at work.
●● The product must not be used for purposes different than those it was manufactured for.
●● The product must not be wilfully modified to be different than it is
specified in the type specification.
●● The product must not work with different voltage, current and frequency than it was manufactured for or must not be professionally
modified.
●● The product must be placed and secured in such a way that no
unauthorized persons without electrotechnical qualifications, especially children, could handle it.
●● Each time the product is again put into operation, e. g. after a repair,
maintenance, complete protection must be secured as well as all
necessary safety measures must be taken and the checkup must
be made by authorized staff.
●● It is necessary - during operation of the product - to prevent risks
of fire or explosion in case of generated gases, inflammable liquid
vapours or gun-powder occurrence.
●● If an authorized person handle the product, there must be no voltage present in the unit; it does not apply to measuring using insulated tips.
●● The product must not work in such conditions and environment that
do not secure safety operation (e. g. installation on the inflammable
base, the cover made of an inflammable material, imperfect protection against penetration of foreign bodies and/or water or other
liquids).
●● The product must not work in the rooms where vibrations and
shocks are greater than it is given in the technical specification.
●● If the user does not respect any of the above warnings and if any
defect occurs because of such neglect, the manufacturer is not responsible for such a defect.
ZPA Smart Energy a.s., Komenského 821, 541 01 Trutnov, Czech Republic
Tel.: +420 499 907 111, fax: +420 499 907 497
E-mail: [email protected], http.: //www.zpa.cz
Technical specification No. A – 7 • 17 • 08, March 2009