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LET-1000-RD primary test equipment

The LET-1000-RD is designed to perform most of the primary tests that are necessary in substations commissioning up to 6 kA.

Manufactory: EuroSMC, Spain.

Description

It allows to perform with sufficient power, all the primary current injections to test the proper function and wiring of all the elements that compose the protection and measuring section in a substation.
The regulation system is based on a continuously variable autotransformer (Variac) that supplies to a power transformer that delivers the high current outputs and isolate the main supply from the load. A built-in ammeter and a timer gives the information about the current value and the operation time of the relay or breaker under test.

APPLICATIONS
  • Direct and motor overload relay test.
  • In general, primary tests including the complete loop, i.e., current transformer, leads, protective relay and circuit breaker.

Features
  • Permanent current up to 1000 A, 2 KVA in 3 Ranges.
  • Built in digital ammeter 0.5% accuracy.
  • Built in digital timer resolution 1 ms.
  • Thermal and shortcircuit protection.

ON TIME / MAXIMUM CURRENT

Tap

 No-load V 

 Continuous 

60 min

15 min

3 min

1 min

1 sec

1000 A

3.20 V

1000 A

1500 A

2250 A

2750 A

3500 A

6250 A

500 A

6.80 V

500 A

750 A

1125 A

1375 A

1750 A

3125 A

250 A

10.50 V

250 A

375 A

560 A

680 A

875 A

1650 A

OFF (cool-down) time at 25 °C

15 min

20 min

20 min

30 min

 

Power

2000 VA

Supplied test leads

2 cables, 3 meter length, 185 mm2

Power supply

  Single-phase 110/230 VAC (specify), 50-60 Hz  

Consumption

12.8A @ 220V

Dimensions

380 × 310 × 540 mm

Weight (unit only)

69 kg

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