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BETA Measuring
Three-Phase Measuring Devices
7
KT1 30 multimeters
11/3
Siemens ET B1 · 10/2008
11
■
Overview
Multimeters are mainly used in power distribution boards for
infeeds into buildings and plants. They replace the more com-
mon analog voltmeters and ammeters with measuring point
changeover, as well as measuring devices for power outputs
and power factor p.f.
The standard measured quantity to be indicated in the 5 display
fields of the multimeter can be tailored to customer requirements.
Versions for direct connection 63 A or for transformers /5 A with
adjustable transformer primary current from 5 to 5000 A support
a wide range of applications.
The green 7-segment displays for the measured values and the
orange indicators of the units of measurement directly alongside
the measured values make for easy reading.
■
Benefits
•
Clear display of all necessary measured values
•
All measured values can be read from a distance
•
Customized setting of the measured quantities for the standard
display
•
Wide range of applications thanks to flexible adaptation to
measuring current transformers
•
Detection of connection errors during commissioning saves
considerable time when trying to locate faults
•
Large, 11 mm high, green 7-segment displays for measured
values makes for easy reading
•
Indication of units of measurement directly alongside the
related measured values provide a clear overview.
■
Technical specifications
7
KT1 300
7
KT1 301
7
KT1 302
Standards
DIN 43751-1, DIN 43751-2 and EN 61010-1
Supply
•
Rated control supply voltage U
c
V AC 230
•
Operating range
× U
c
0.8 ... 1.2
•
Rated frequency
Hz
50
•
Frequency range
Hz
45 ... 65
•
Rated power dissipation P
v
VA
10
Overload capability
•
Voltage
Continuous: phase/phase
V
480
1
second: phase/phase
V
800
Continuous: phase/N
V
276
1
second: phase/N
V
460
•
Current
Continuous
A
76
6
0.5
s
A
--
110
10
ms
A
1000
--
Measuring inputs
•
Connection type
Direct
Transformer /5 A
•
Voltage U
e
Phase/phase
V
400
Phase/N
V
230
•
Operating range voltage
Phase/phase
V
87 ... 400
Phase/N
V
50 ... 230
•
Current
I
e
A
63
5
•
Operating range current
A
0.1 ... 63
0.01 ... 5
•
Transformer current
Primary current of the transformer
A
--
5 ... 5000
Smallest input step
A
--
5
•
Frequency
Hz
50
•
Frequency ranges
Hz
45 ... 65
Display
•
Connection errors
Inverted phases
Err
•
Voltage: 3 displays, 3-digit
Delta L1 – L2, L2 – L3, L3 – L1
V
87 ... 480
Star L1/N – L2/N – L3/N
V
50 ... 276
Voltage > 480/276 V
H H H
Voltage < 87/50 V
– – –
•
Current: 3 displays, 3-digit
L1 – L2 – L3
0.3 ... 76
A
0.1
A ... 1.2 kA
For current > 76 A or
6
A × transformer conversion ratio
H H H
For current < 0.1 A or
0.01
A × transformer conversion ratio
O O O
•
Frequency: 1 display, 3-digit
L
Hz
45.0 ... 65.0
•
Active power: 3 displays, 3-digit or
1
display, 3 of 7 digits
L1 – L2 – L3,
L
Display with floating decimal point
W, kW
or MW
0 ... 999
•
Reactive power: 1 display, 3-digit
L, with capacitive or inductive indication;
display with floating decimal point
var, kvar
or Mvar
0 ... 999
•
Apparent power: 3 displays, 3-digit or
1
display, 3-digit
L1 – L2 – L3,
L
Display with floating decimal point
W, kW
or MW
0 ... 999
•
p.f.: 3 displays, 3-digit or
1
display, 3-digit
L1 – L2 – L3,
L
Display with floating decimal point
0.01 ... 1.00
•
Transformer primary current
Only if set
A
--
5 ... 5000
•
Transformer secondary current
Only if set
A
--
5
•
Display period
/
s
2
•
Storage of setting
EEPROM
© Siemens AG 2008