M500

Programmable Standard Current Transformer

Programmable Standard Current Transformer М500 and Range Extender М500E1 provides unique abilities of current ratio control in automated CT calibration systems

M500 high accuracy is achieved by using a two-stage technology and electronic compensation of burden influence

Description

FEATURES AND BENEFITS

High accuracy (current error ± 0,005 %; phase displacement ± 0,15 min)
Rated primary current range: 0,5 … 5000 А
Rated secondary current: 5 А
Primary current values are selected using the control knob rotary encoder or by PC via the USB interface
Electronic burden compensation of secondary circuits
Possibility of using with automated CT calibration systems
Built-in overload protection
Small size and low weight

APPLICATIONS

M500 is used by:

Manufacturers of Current Transformers
On-site testing of Current Transformers
Calibration Laboratories
Metrology Institutes

Technical specification

Version	M500.1	M500.2	M500.3
Current range, %	1…120	1…150	1…150
M500 Rated primary current, A	0,5; 1; 1,5; 2; 2,5; 3; 4; 5; 7,5; 10; 15; 20; 25; 30; 40; 50; 60; 75; 80; 100; 125; 150; 200; 250; 300; 400; 500; 600	0,5; 1; 1,25; 1,5; 2; 2,5; 3; 4; 5; 6; 7,5; 10; 12,5; 15; 20; 25; 30; 40; 50; 60; 75; 80; 100; 125; 135; 150; 175; 200; 250; 300; 350; 400; 500; 600	0,5; 0,6; 0,7; 0,75; 0,8; 0,9; 1; 1,25; 1,5; 2; 2,5; 3; 3,5; 4; 4,5; 5; 5,5; 6; 6,5; 7; 7,5; 8; 8,5; 9; 9,5; 10; 12,5; 15; 20; 25; 30; 35; 40; 45; 50; 55; 60; 65; 70; 75; 80; 85; 90; 95; 100; 105; 110; 115; 120; 125; 130; 135; 140; 145; 150; 155; 160; 165; 170; 175; 180; 185; 190; 195; 200; 225; 250; 275; 300; 325; 350; 375; 400; 425; 450; 475; 500; 525; 550; 575; 600
M500E1 Rated primary current, A	750; 800; 1000; 1200; 1250; 1500; 1600; 2000; 2400; 2500; 3000; 4000; 5000*	750; 800; 1000; 1200; 1250; 1500; 1600; 1800; 2000; 2400; 2500; 3000; 3200; 3500; 4000; 5000*	650; 700; 750; 800; 850; 900; 950; 1000; 1050; 1100; 1150; 1200; 1250; 1300; 1350; 1400; 1450; 1500; 1550; 1600; 1650; 1700; 1750; 1800; 1850; 1900; 1950; 2000; 2100; 2200; 2250; 2300; 2400; 2500; 2600; 2700; 2750; 2800; 2900; 3000; 3100; 3200; 3300; 3400; 3500; 3600; 3700; 3800; 3900; 4000; 4100; 4200; 4300; 4400; 4500; 4600; 4700; 4800; 4900; 5000
Rated secondary current, A	5
Burden power, V·A	≤ 5
Current error, %	±0,005
Phase displacement, min	±0,15
* Values are possible for 1 to 120 % of rated current
Power mains Rated voltage Rated frequency	220/230 V 50 Hz
Operating temperature	0...40 °C
Relative humidity	up to 80 % non-condensing
Size M500 M500E1	546 × 347 × 247 mm 110 × 350 × 210 mm
Weight M500 M500E1	17 kg 7 kg
Standards Safety EMC	EN 61010-1:2010 EN 61326-1:2013
Calibration Interval	5 years recommended