User Manual

20
Brief description
The A 210/A 220 are panel mounting instruments for monitoring AC
systems with dimensions 96 x 96 mm (A 210) and 144 x 144 mm
(A 220). The following measurements are acquired: voltages,
currents, frequency, and phase angles in single phase or 3 phase
systems. From these, the active power, reactive power, apparent
power, active energy, reactive energy, and the power factor and
the neutral current can be calculated. With the use of voltage and
current transformers, the instrument can be used for measurements
in medium and high voltage systems. The transformation ratios
are confi gurable for the direct display of all measurements. The
A 210/A 220 instrument is used as a display with two S0 pulse or
limit value outputs.
Technical data
(for more detailed information please see data sheet, download
under www.camillebauer.com)
Measuring inputs
Nominal frequency: 50, 60 Hz
Nominal input voltage: Phase-phase: 500 V
Phase - N: 290 V
Nominal input current: 5 A or 1 A
Continuous overload withstand
10 A at 346 V single phase AC system
10 A at 600 V three phase system
Short duration overload withstand
Input variable
Number of
applications
Duration
of
overload
Interval
between
two overloads
577 V LN 10 1 s 10 s
100 A 10 1 s 100 s
100 A 5 3 s 5 min
Measuring ranges
U, I, S: ≤ 120% of nominal value
P, Q: ≤ ± 120% of nominal value
F: 45 to 65 Hz
cos : ± 1
Pulse/Limit value outputs
Depending on the function selected, the two digital outputs can
be used either as pulse outputs for active and reactive energy or
as limit signals.
The outputs are passive, and are galvanically isolated from all the
other circuits by opto-couplers. They are suitable to drive tariff
devices (S0-standard DIN 43 864) or 24 V-relais.
U
ext
≤ 40 V DC (OFF: leakage current ≤ 0.1 mA)
I
L
≤ 150 mA (ON: terminal voltage ≤ 1.2 V)
t
U
U
e.g. energy import
e.g. limit value output
R
L
R
L
SO2
SO1
20
21
22
U
ext
Limit value outputs
Any measured value can be allocated to the limit values.
Impulse outputs
Active and reactive energy impulses can be generated for driving
electronic and electromechanical energy meters.
Power supply*
DC, AC power pack 50 to 400 Hz
100 to 230 V AC/DC ±15% or 24 to 60 V AC/DC ±15%
Power input: < 3 VA (without extension module)
* For power supplies > 125 V the auxiliary circuit should include an
external fuse.
Reference conditions acc. to IEC 688 resp. EN 60 688
Sine 50 - 60 Hz, 15 - 30°, application group II
Measurement accuracy (related to nominal value)
Current, voltage ± 0.5%
Power ± 1.0%
Power factor ± 1.0%
Energy ± 1.0%
Frequency ± 0.02 Hz (abs.)
Environmental conditions
Operating temperature: -10 to +55 °C
Storage temperature: -25 to +70 °C
Relative humidity: ≤ 75%
Altitude: 2000 m max.
Indoor use statement
Safety
Protection class: II (voltage inputs with protection
impedances)
Measuring category: III
Pollution degree: 2
Measurement voltage: 300 V
Test voltage: Between current inputs, power
supply, digital outputs, terminals
of the plugged-in module: 3700 V /
50 Hz / 1 min.
At voltage inputs:
4.25 kV 1.2/50 μs
Module connections: The pin rail at the back is connected
to the voltage inputs via a protec-
tion impedance. Only the permitted
modules can be plugged-in!
Enclosure protection: Front IP 66, terminals IP 20
Note of maintenance
No maintenance is required.
Display
The measurement display is 3 digit resp. 4 digit (frequency) and right
justifi ed, with the exception of the energy values which are 8 digits.
The left-hand 7-segment display is for the sign or an abbreviation.
Abbreviations:
Maximal value
Minimal value
Average value
Max. average value
Minimal value for power factor; the worst out of the 3
values of P1, P2, or P3 is displayed
Neutral current
Inductive
Capacitive
Incoming
Outgoing
Interval active power
Interval reactive power
Interval apparent power
Last interval; t-0
, ... Previous interval; t-1, -2, -3, -4
Overload, out of range indicator
∑ System value
Δ Delta voltage