Опис
Electromagnetic system ammeters are designed to measure sinusoidal alternating current with a frequency from 45 Hz to 65 Hz.
Design features:
– angular location of the moving part;
– liquid tranquilizer of the moving system;
– long scale length;
– the beginning of the measurement range is 10% of the final value.
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The final value of the measurement range |
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Direct inclusion |
Switching on through a current transformer |
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0,1 А, 0,15 А, 0,3 А, 0,5 А, 0,75 А, 1 А, 1,5 А, 3 А, 5 А, 7,5 А, 10 А, 20 А |
10 A, 20 А, 30 А, 50 А, 75 А, 100 А, 150 A, 200 А, 300 А, 400 А, 500 А, 600 A, 750 А, 800 A, 1000 А, 1500 А, 2000 А, 2500 А, 3000 А, 5000 А, 6000 А, 7500 А, 10000 А |
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Note 1: Depending on the order, ammeters with a full range of less than 1 A can be manufactured as milliammeters, and ammeters with a full range of more than 1000 A can be manufactured as kiloammeters. Note 2: The measuring current transformer must be rated for 1A or 5A secondary winding. |
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By special order, ammeters with other measurement ranges, as well as with special markings, inscriptions and other functional areas of the scales can be manufactured.
Technical characteristics:
Accuracy class of devices – 1.5; 2.5; 4.
The overall dimensions of the devices are 120 mm x 120 mm x 78 mm.
The weight of the devices is no more than 0.4 kg.
The working position of ammeters is vertical, horizontal and at an angle of 45˚ (depending on the order).
Working conditions of application (climatic influences):
– ambient air temperature from minus 50 °C to plus 60 °C;
– relative air humidity up to 95% at a temperature of 35 °C.
Ammeters are shock and vibration resistant.
Ammeters are attached to shields up to 8 mm thick, shield markings: 106mm x 106mm.
The method of attachment to the shield ЭА0302 / 1У
