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MEB-II

MEB-II

Checking Fault Current Detection Assemblies

350

HAS

The MEB II test case makes it easy to test fault current detection assemblies on underground networks during commissioning or maintenance operations. The case is capable of generating a current of up to 350A. The current can be injected in forced or timed operation from 10 to 990 ms.

Verification of the detection assembly: Toroids, cable connection and detection assemblies
Control of the Imax operating threshold (2 passes to be made in the toroids)
Control of the operating threshold In (homopolar)
Detector timing control in 10 ms steps from 10 to 990 ms

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Presentation

Flight case type case suitable for transport
Cover for storing cables
Dimensions: L = 390 mm ; l = 230mm ; H = 315 mm ; Mass ≈ 16 kg .

Feature

Grocery :

230 Vac ± 10% 50/60Hz
max power ≈ 800 VA

Protections:

General power supply: Circuit breaker
Generator: Circuit breaker and thermal protection

Generators:

A current generator controlled by two push buttons:

forced operation for threshold search
timed operation for controlling the time taken into account

A variable output

0-140A/2.5V

Caliber overload at 350A for 60s.

Digital Measurement module

Measures :

TRMS digital ammeter range 350A/1%

Injection timing:

Adjustable by encoder wheels from 10 to 990 ms in steps of 10 ms.

Accessory :

5m long flow cable in 25mm² extra-flexible copper section equipped with locking plugs at the ends.

Security

Output isolated from the general power supply by safety transformer NF EN 61558-2-6

Output voltage < 2.5Vac NF EN 61010-1

Environmental conditions

Operating temperature: 0 to 50°C Storage temperature: -25 to 70°C Humidity: 10 to 80% non-condensing.

Pollution degree 2

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