Atec Megger-ODEN-AT - Manual (Page 3)

ODEN AT
Primary Current Injection Test System
Specifications ODEN AT
Specifications are valid at nominal input voltage and an ambient
temperature of +25°C, (77°F). Specifications are subject to change
without notice.
System designation
An ODEN AT-system consists of a control unit and one, two or
three current units. There are three different versions of the current
units: S-unit (standard), X-unit (extra 30/60 V outlet) and H-unit
(high current). The system designation indicates the number and
version of current units included.
Example: ODEN AT/2X
2 = Number of current units
X = Version of current unit (S, X or H)
Environment
Application field The instrument is intended for use
in high-voltage substations and
industrial environments.
Temperature
Operating 0°C to +50°C (+32°F to +122°F)
Storage & transport -25°C to +55°C (-13°F to +127°F)
Humidity 5% – 95% RH, non-condensing
CE-marking
LVD 2006/95/EC
EMC 2004/108/EC
General
Mains voltage 240 / 400 V AC, 50 / 60 Hz
480 V AC / 60 Hz
Mains inlet IEC 60309-2, 63 A
Input current Output current x open circuit voltage
/ input voltage
Protection The output transformer has a built-in
thermal cut-out, and the primary
side is protected by a miniature
circuit breaker.
Dimensions
Control unit AT 570 x 310 x 230 mm
(22.4” x 12.2” x 9”)
Current unit S, X H 570 x 310 x 155 mm
(22.4” x 12.2” x 6”)
Complete with cart 690 x 350 x 860 mm
(27.2” x 13.8” x 33.9”)
Weight
Control unit AT 25 kg (55 lbs)
Current unit S 42 kg (92.6 lbs)
Current unit X 45 kg (99.3 lbs)
Current unit H 49 kg (108 lbs)
Cart 11 kg (24.3 lbs)
Display LCD
Available languages English, German, French, Spanish,
Swedish.
Measurement section
Ammeters
Measurement method AC, true RMS
Inaccuracy 1% of range ±1 digit
Ammeter 1
Ranges
0 – 4800 A / 0 –15 kA
0 – 9600 A / 0 – 30 kA
0 – 960 A / 0 – 3 kA
Ammeter 2
Ranges
0 – 2.000 A / 0 – 20.00 A
Maximum current 20 A (The input is not protected by
a fuse)
Voltmeter
Measurement method AC, true RMS
Ranges 0 – 0.2 V, 0 – 2 V, 0 – 20 V,
0 – 200 V, AUTO
Inaccuracy 1% of range ±1 digit
Input resistance (Rin) 240 kΩ (range 0 – 200 V)
24 kΩ (other ranges)
Dielectric withstand 2.5 kV
Timer
Presentation In seconds, mains frequency cycles
or hours and minutes
Ranges 0.000 – 999.9 s
0 – 9999 cycles
0.001 s – 99 h 59 min
Inaccuracy ±(1 digit + 0.01% of value)
For the stop condition in INT-mode
1 ms shall be added to the specified
measurement error.
Stop input
Max. input voltage 250 V AC / 275 V DC
Phase angle
Range 0 – 359º
Resolution 1º
Inaccuracy ±2º (for voltage and current readings
that are higher than 10% of the
selected range)
Z, P, R, X, S, Q and power factor (cos φ)
For these measurements the result is calculated using U, I and
sometimes
φ.
Imax
Stores highest current value that exists ≥100 ms
INT-level
Threshold indicating that current is interrupted. Can be set to
0.7% or 2.1% of Ammeter 1 range.