WS0302 PDF даташит
Спецификация WS0302 изготовлена «Iskra» и имеет функцию, называемую «Electric energy meter». |
|
Детали детали
Номер произв | WS0302 |
Описание | Electric energy meter |
Производители | Iskra |
логотип |
4 Pages
No Preview Available ! |
Electric energy meter
WS0101, WS0102, WS1102
WS0301, WS0302, WS1302
Picture 1: Electric energy meter WS0101
Picture 2: Electric energy meter WS0102
Picture 3: Electric energy meter WS1302
FEATURES:
• Direct connection up to 65 A (WSX10X)
• Connection with current transformer (WSX30X)
• Industrial applications or meters with type approval
according to European Directive 2004/22/EC MID
• Active energy - class B in compliance with EN
50470-3, class 1 in compliance with EN 62053-21
• Reactive energy - class 2 in compliance with
EN 62053-23
• Three-phase connection
• Energy measurement in both directions
(import-export)
• Microprocessor control
• 7 digit energy counter (WS0101, WS0301)
• Double 7 digit energy counter (WS0102, WS0302)
• LCD 9 digit display (WS1102, WS1302)
• Tariff inputs (option)
• Communication (option):
RS485 (MODBUS protocol)
• Pulse outputs (option)
• Housing for DIN rail mounting
• Protective cover for terminals
(possible seal up against non-authorized access)
APPLICATION
The WSX10X energy meters are used for measuring energy
using direct connection in three-phase systems with current
up to 65A while the WSX30X meters are used for connection
with current transformers. Optional also the measurement of
apparent energy is possible. Housing is provided with
terminals protection covers, which can be seal up against
non-authorised access. They are built to be fastened to
EN 60715 standard guides. The meters are microprocessor
controlled. Display of quantities depends on meters type.
They can be displayed on 7 digit electromechanical counter
or on LCD display.
According to the customer's demands, meters can be
equipped with a RS485 serial communication (option) with
the MODBUS protocol, which enables data transmission and
thus connection of the measuring places into the network for
the control and management with energy. They can also be
equipped with tariff input (option).
A built-in pulse output (option) is designed for sending data
to the devices for checking and monitoring consumed
energy.
WWW.ISKRA-MIS.SI
LAYOUT AND MODE OF OPERATION
A method for sampling voltages and currents with an A/D
converter is used. Current inputs are electrically isolated
from the system by means of measuring transformer (4)
(Picture 4), voltages are measured by the resistor voltage
divider (3). Input currents are amplified in programmable
amplifier (5). After A/D conversion the signal is computed in
microprocessor (6). Not only data on the meter type but also
calibration constants are stored in the EEPROM (7). There
are no adjustable elements (potentiometers) in the meter,
which assures a better long-term stability. A built-in auto
range of current inputs assures accuracy also at small
currents. High rate of sampling enables measuring distorted
signals, as well.
One or two (optional) S0 output (10) is built into each meter.
A number of pulses depend on consumed energy. Measured
quantities are displayed on 7 digit electromechanical counter
(11) or on LCD display (8). LED diodes (9) are used for
detection of starting current, indication of communication
(transmission) and test output proportional to measured
power. LED diodes are only built in WS0X01 and WS0X02
meters.
Galvanic separated communication (12), RS485 enables
data transfer and tariff setting. Tariff can also be set via tariff
input (13) (option).
The meter is supplied from the measuring system. The
instrument electronic part is supplied via the supply
rectifier (2).
Picture 4: Block diagram
Page 1
No Preview Available ! |
CONNECTION
Meter terminals are positioned on the bottom and the top
side of the meter and are covered with the protection cover.
Current and voltage circuits are located on the bottom side
as shown on the picture bellow. For the direct connection
meters voltage inputs are equipped with protection bung,
which allows you to physically break contact, before
connecting or disconnecting voltage to the meter. On the top
side are connection terminals for communication, pulse
outputs and tariff inputs (picture 5). A label with connection
diagram is located on the bottom of the cover. Regarding to
the meter version the meter connection can be three-phase
with unbalanced load. Its measuring system can be
performed either in 3 or 4-wire connection.
Picture 9: Three phase system (three wire unbalanced - 3u)
WSX30X
Picture 10: Three phase system (four wire unbalanced - 4u)
WSX30X
Picture 5: picture of connection terminals WSX10X
Picture 6: picture of connection terminals WSX30X
Picture 7: Three phase system (three wire unbalanced - 3u)
WSX10X
Picture 11: Connection of auxiliary circuits (the same for all versions)
TECHNICAL DATA
ACCURACY CLASS:
• Active energy
• Reactive energy
EN 50470-3 Class B
(EN 62053-21 Class 1)
EN 62053-23 Class 2
VOLTAGE INPUT:
• Nominal voltage (Un)
• Supply voltage range
• Consumption
3x230/400 V or 3x400 V
0.8 ... 1.15 Un
< 3 VA
CURRENT INPUT:
Direct connection (WSX10X)
• Minimum current (Imin)
0.25 A (0.5 A)
• Transitional current (Itr)
• Reference (basic) current (Iref)
0.5 A (1 A)
5 A (10 A)
• Maximal current (Imax)
• Starting current (Ist)
65 A (63 A)
0.004 Iref
• Consumption at Iref (10 A)
< 0.02 VA
Connection with current transformer (WSX30X)
• Nominal current (In)
• Minimum current (Imin)
5 A or 1 A
0.05 A or 0.01 A
• Transitional current (Itr)
• Maximal current (Imax)
0.25 A or 0.05 A
6 A or 1.2 A
• Starting current (Ist)
• Consumption at Iref (5 A)
0.002 Iref
< 0.02 VA
FREQUENCY RANGE:
• Nominal frequency (fn) for WSX30X
• Nominal frequency (fn) for WSX10X
• Frequency range
50 Hz and 60 Hz
50 Hz or 60 Hz
Specified at order
0.98 … 1.02 fn
MID approval is valid only for 50 Hz
Picture 8: Three phase system (four wire unbalanced - 4u) WSX10X
WWW.ISKRA-MIS.SI
Page 2
No Preview Available ! |
OVERLOAD CAPACITY
• Direct connection WSX10X
Input value
Number of
applications
Duration
of one
application
Interval between
two successive
applications
100 A at Un
5
3s
5 min
250 A at Un
1
1s
⎯
30 Imax at Un
1
10 ms
⎯
2
• Connection with current transformer (WSX30X)
Input value
Number of
applications
Duration
of one
application
Interval between
two successive
applications
120 A
1 0.5 s
⎯
PULSE OUTPUTS (optional):
WS1X02 – one pulse output required for test purpose
Electrical values
• Number of pulse outputs
max. 2
• Pulse duration
35 ms ± 5 ms
• Interpulse period
> 30 ms
• Uext
• Switched current
max. 40 V
max. 27 mA
• Pulse output constant for WSX10X
1000 imp/kWh
1000 imp/kvarh
• Pulse output constant for WSX30X
− secondary metering
10000 imp/kWh (imp/kvarh)
− primary metering
See table 1
TARIFF INPUTS (OPTIONAL):
• Number of tariff inputs
max. 2 (MID – max. 1)
• Number of tariffs
max. 4 (MID – max. 2)
• Nominal voltage (Un)
230 V
• Input voltage range
0.8 ... 1.15 Un
• Current at nominal voltage
< 0.5 mA
• For industrial application tariff switching is possible also
using RS485 communication
COMMUNICATION (optional):
RS485
• Connection type:
Multi-drop
(32 connections per link)
• Signal levels:
RS485
• Cable type:
Screened twisted pair
• Maximum cable length:
1000 m
• Connector:
Screw terminals
• Isolation:
3.7 kV rms for 1 minute between all
terminals and all other circuits
• Transmission mode:
Asynchronous
• Message format:
MODBUS RTU
• Data rate:
1200 to 19200 bits/s
• Function
− Industrial application
Data reading
Register designation
Tariff switching
Input of transformer data for primary metering
Setting of communication parameters
Setting device name
− MID
Data reading
Setting of communication parameters
Setting device name
DISPLAY:
WS0X01 and WS0X02
• Display type
electromechanical counter,
WS0X01 one counter, WS0X02 two counters
• Digit height
4 mm
• Digit width
1.2 mm
• Number of digits (WS010X)
7 (6 + 1)
• Unit (WS010X)
kWh (kvarh)
• Number of digits and unit (WS030X)
− secondary metering
7 (5 + 2) kWh (kvarh)
− primary metering
See table 1
WWW.ISKRA-MIS.SI
WS1X02
• Display type
• Digit height
• Digit width
• Number of digits WS1102
• Unit WS1102
• Number of digits and unit WS1302
− secondary metering
− primary metering
LCD
4.9 mm
3.0 mm
2 x 9 (7 + 2)
kWh (kvarh)
2 x 9 Wh (varh)
See table 1
LED (only meters with electromechanical register):
• Run – measuring status
red LED
LED ON at I > Ist and active register state
• Com – communication status
green LED
at transmission
• Test output
red LED
WS010X
1000 imp/kWh (imp/kvarh)
WS030X second. metering 10000 imp/kWh (imp/kvarh)
WS030X primary metering
See table 1
Register resolution and meter constant depend on nominal
primary current or nominal primary power in case of CT and
VT
Nominal primary
current ; Primary
power per phase
WS030X
≤50 A; ≤11.5 kW
≤500 A; ≤115 kW
≤5000 A; ≤1.15 MW
≤11.5 MW
WS1302
≤50 A; ≤11.5 kW
≤500 A; ≤115 kW
≤5000 A; ≤1.15 MW
≤11.5 MW
Register Register
resolution digits and
units
Pulse output
and LED
constant *
100 Wh
1 kWh
10 kWh
100 kWh
6+1 kWh 1000 imp/kWh
7 kWh 100 imp/kWh
5+2 MWh 10 imp/kWh
6+1 MWh 1 imp/kWh
10 Wh
100 Wh
1 kWh
10 kWh
7+2 kWh 1000 imp/kWh
8+1 kWh 100 imp/kWh
9 kWh 10 imp/kWh
7+2 MWh 1 imp/kWh
* - constant of impulse indication on display (*) at WS1302 is
ten times lower then LED constant
Table 1: Register resolution and meter constants for primary
metering
HOUSING:
• Material of housing:
PC
uninflammable, according to UL 94 V-0
• Dimensions:
height 90 mm
depth 72 mm
width 108 mm
• Mounting:
• Enclosure protection:
• Weight:
For rail mounting, 35 mm
according to EN 60715: 2001
IP 50
according to EN 60529: 1989
WSX10X cca 560 g
WSX30X cca 420 g
CONNECTION TERMINALS:
Cross section of the connection leads:
• Current terminals (WSX10X)
• Current terminals (WSX30X)
2.5 mm2 to 16 mm2
1 mm2 to 4 mm2
• Voltage terminals:
1 mm2 to 2.5 mm2
• Communication, pulse and tariff terminals:
max. 2.5 mm2 or 2 x 1.5 mm2
Protection
• Protection for connection terminals:
• Protection cover against non authorized access
IP20
REGULATIONS:
• Protection:
• Test voltage:
Protective class II
300 V rms, installation category III
Pollution degree 2
3.7 kV rms
according to EN 61010-1: 2004
Page 3
Скачать PDF:
[ WS0302.PDF Даташит ]
Номер в каталоге | Описание | Производители |
WS0301 | Electric energy meter | Iskra |
WS0302 | Electric energy meter | Iskra |
Номер в каталоге | Описание | Производители |
TL431 | 100 мА, регулируемый прецизионный шунтирующий регулятор |
Unisonic Technologies |
IRF840 | 8 А, 500 В, N-канальный МОП-транзистор |
Vishay |
LM317 | Линейный стабилизатор напряжения, 1,5 А |
STMicroelectronics |
DataSheet26.com | 2020 | Контакты | Поиск |