Техническая Спецификация для Gossen Metrawatt PROFITEST 2 Profitest 2
Модели
Profitest 2
3-349-490-03
1/9.08
GMC-I Gossen-Metrawatt GmbH
PROFITEST
⏐
2
Tester for DIN VDE 0100
DQS-zertifiziert nach
DIN EN ISO 9001:2000
QUALITÄTSMANAGEMENTSYSTEM
Reg.-Nr.1262
Large Voltage and Frequency Range
An extended-range measuring system allows for use of the test
instrument for all AC and three-phase systems with voltages
ranging from 65 to 500 V, and frequencies from 15.4 to 420 Hz.
instrument for all AC and three-phase systems with voltages
ranging from 65 to 500 V, and frequencies from 15.4 to 420 Hz.
Loop and System Impedance Measurement
Measurement of loop and system impedance can be performed
within a range of 65 to 550 V. Conversion to short-circuit current
is based upon respective line voltage, as long as the measured
line voltage is within the prescribed range. Short-circuit current is
calculated from actual line voltage and measured impedance for
line voltages outside of this range.
With a test current of 15 mA the loop impedance can also be
determined after RCCBs with a nominal residual current of at
least 30 mA without the RCCB being tripped.
within a range of 65 to 550 V. Conversion to short-circuit current
is based upon respective line voltage, as long as the measured
line voltage is within the prescribed range. Short-circuit current is
calculated from actual line voltage and measured impedance for
line voltages outside of this range.
With a test current of 15 mA the loop impedance can also be
determined after RCCBs with a nominal residual current of at
least 30 mA without the RCCB being tripped.
Insulation Resistance Measurement
with Nominal Voltage and Variable or Rising Test Voltage
with Nominal Voltage and Variable or Rising Test Voltage
Insulation resistance is usually measured with the nominal volt-
ages 500 V, 250 V or 100 V.
Measurements can be performed with continuously rising voltage
for the detection of weak points in insulation, as well as for the
determination of response voltages for voltage limiting devices.
Voltage at the device under test, any detected response or break-
down voltage, as well as insulation resistance appear at the
instrument’s display, and an LED indicates violation of an (adjust-
able) limit value.
ages 500 V, 250 V or 100 V.
Measurements can be performed with continuously rising voltage
for the detection of weak points in insulation, as well as for the
determination of response voltages for voltage limiting devices.
Voltage at the device under test, any detected response or break-
down voltage, as well as insulation resistance appear at the
instrument’s display, and an LED indicates violation of an (adjust-
able) limit value.
Low-Resistance Measurements
Bonding conductor resistance and protective conductor resis-
tance can be measured with a measuring current of
tance can be measured with a measuring current of
≥ 200 mA DC, automatic measuring voltage polarity reversal and
selectable conduction direction. Violation of an (adjustable) limit
value is signaled with an LED.
selectable conduction direction. Violation of an (adjustable) limit
value is signaled with an LED.
Universal Connector System
The interchangeable plug inserts and the plug-on 2-pole adapter
(can be expanded to a 3-pole adapter for phase sequence mea-
surements) allow for use of the test instrument all over the world.
(can be expanded to a 3-pole adapter for phase sequence mea-
surements) allow for use of the test instrument all over the world.
Special Features
•
Display of allowable fuse types for electrical systems
•
Start-up testing for energy consumption meters
•
Calculation of cable lengths for common copper
conductor cross-sections
conductor cross-sections
•
Measurement of biasing, leakage and circulating current
up to 1 A, as well as working current to 150 A with
the Clip 0100S accessory clip-on current sensor
up to 1 A, as well as working current to 150 A with
the Clip 0100S accessory clip-on current sensor
•
Phase sequence measurement
(phase sequence, highest line-to-line voltage)
(phase sequence, highest line-to-line voltage)
Testing of Residual-Current Protective Devices (RCCBs)
• Measurement of contact voltage without tripping the RCCB
Contact voltage with reference to nominal residual current
is measured with 1/3 of nominal residual current.
is measured with 1/3 of nominal residual current.
• Trip test with nominal residual current, measurement of time to trip
Special Testing for Systems and RCCBs
• Testing of systems and RCCBs
with rising residual current and display of trip current,
as well as contact voltage at the moment tripping occurs
as well as contact voltage at the moment tripping occurs
• Testing of RCCBs
which are suitable for pulsating DC fault current,
testing is conducted with positive or negative half-waves
testing is conducted with positive or negative half-waves
• Testing of RCCBs with adjustable residual current
for the determination of contact voltage and trip current
Testing of Special RCCBs
•
Selective
,
type G
Testing of RCD Protection in IT Systems
S