Atec Megger-830280 - Manual (Page 3)

Transformer Ohmmeter
Transformer Winding Resistance
and Tap-Changer Test Set
SPECIFICATIONS
Measuring Principle
Electronic Thompson-type circuit
Input
120/240 V, 50/60 Hz, 350 VA
Output
Current Ranges: 5 mA, 50 mA,500 mA, 5 A (dc)
Open-Circuit Test Voltage: 30 Vdc
Rating: Continuous use on all ranges
Resistance Measurement Inputs
Two isolated high-impedance inputs, each with separate range
control and protection provided for flashover caused by inductive
kickback
Item (Qty) Cat. No.
Transformer Ohmmeter
120 volt, 50/60 Hz input 830280
240 volt, 50/60 Hz input 830280-47
Included Accessories
Lead set, including 830282
Potential leads, 33 ft (10 m) [2 pr]
Current leads, 33 ft (10 m) [1 pr]
Shorting lead, 9.9 ft (3 m) [1]
Universal bushing adapters [set of 4] 830285
AC power cord 17032
Transport case MC996
Instruction manual AVTM830280
Optional Accessories
Lead set, including 830282-66
Potential leads, 66 ft (20m) [2pr]
Current leads, 66 ft (20 m) [2 pr]
Shorting lead, 9.9 ft (3 m) [1]
ORDERING INFORMATION
Ranges
Accuracy: ±0.5% reading, ±0.5% full scale (when current has
stabilized)
Overrange: Lead number one displayed with all other digits
blanked
Environmental
Operating: 32 to 104° F (0 to 40° C), relative humidity to 80%
Storage: -40 to +150° F (-40 to +65° C)
Temperature Coefficients: ±0.05% of applicable accuracy
specifications per degree Celsius of resistance range
Displays
Two high-temperature, 0.7 in. (18 mm), liquid-crystal, 3 1/
2
-digit
displays showing 1999 at full scale. Update rate is approximately
three times per second.
Dimensions
Instrument
11 H x 16 W x 10.5 D in. (280 H x 406 W x 267 D mm)
Transport Case
13 H x 20 W x 21 D in. (330 H x 508 W x 533 D mm)
Weight
Instrument: Net 40 lb (18 kg)
Shipping: 66 lb (30 kg)
UK
Archcliffe Road Dover
CT17 9EN England
T +44 (0) 1304 502101
F +44 (0) 1304 207342
UNITED STATES
4271 Bronze Way Dallas
TX75237-1017 USA
T 800 723 2861 (USA only)
T +1 214 330 3203
F +1 214 337 3038
OTHER TECHNICAL SALES OFFICES
Valley Forge USA, Toronto CANADA,
Mumbai INDIA, Trappes FRANCE,
Sydney AUSTRALIA, Madrid SPAIN
and the Kingdom of BAHRAIN.
Registered to ISO 9001:2000 Reg no. Q 09290
Registered to ISO 14001 Reg no. EMS 61597
TO_DS_en_V10
www.megger.com
The word ‘Megger’ is a registered
trademark