MULTI-RANGE POWER SUPPLIES FOR TESTING THERMAL AND MAGNETO-THERMAL CIRCUIT BREAKERS
Power supply range for production lines
EFS has developed a complete range of multi-range power supplies for testing and adjusting thermal and magneto-thermal relays and circuit breakers.
This range includes :
- DC voltage sources
- AC voltage sources
- AC current sources.
The opposite picture shows the 20 kVA alternating current source, adjustable from 0 to 2000 A rms in 6 ranges.
SUITABLE CONTROL
Manual control -4-20 mA and ON/OFF – MODBus series -Suitable for production line automation
EXTENDED RANGE
From 6 V to 700 V AC with 0.5% accuracy of the value read
From 0.16 A to 1300 A AC with 0.5% of the value read.
INTEGRATED CYCLES
Beat mode, ramp-up or ramp-down mode, multiple cycles programmable for durability or qualification tests.
Relay and contactor test equipment
Customer problem
Schneider asked us to develop and manufacture equipment for testing and adjusting thermal and magneto-thermal relays and circuit breakers on their production lines.
EFS response
EFS has developed a complete range of power supplies to meet the various customer tests.
- a range of power supplies specially designed for setting thermal and magneto-resistive AC circuit breakers adapted to our clients’ product lines. (Models 8172, 8545, 8326, 8327, 8481, 8565).
- two multi-range voltage sources designed for testing AC or DC contactors. The 220 VA AC voltage source, adjustable in ranges from 0 to 700 V rms (model 8371: photo 1) and also the 40 W DC voltage source, adjustable in 4 ranges from 0 to 600 Vdc at a power of 90 W. (model 8373: photo 2).
Advantages of the solution
- Complete test cycles (ramps, slots, etc.)
- Numerous safety features to protect the user (insulation, emergency stop) and the power supply itself (overloads).
- Manual operation (keypad and digital potentiometer on front panel) or via an external system (MODBUS link).
- Displays precise measurements of output current and voltage.
SEE OUR CATALOGUE
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