- Product Overview

The Alstom MMLB01 is a specialized Multi-Finger Test Plug designed to facilitate safe, seamless isolation and secondary injection testing on electrical protection circuits. Equipped with 14 individual contact fingers, this robust test plug inserts directly into a corresponding Midos MMLG test block, automatically open-circuiting the secondary CT links through internal break-before-make contact sequences to eliminate the risk of dangerous high-voltage open-circuit sparking.

- Industrial Applications

(1) Substation Secondary Injection Testing: Used by commissioning engineers to safely hook up external secondary current and voltage injection test sets to protection relays without shutting down primary grid lines.

(2) Electrical Utilities & Switchgear Panels: Integrated into power station protection topologies to perform routine calibration checks on distance, overcurrent, and differential relays.

(3) Industrial Cogeneration Power Facilities: Applied within local automated power plant generator protection racks to isolate tracking loops during maintenance routines.

- Application Industry

1. Power industry, the elevator industry, parking lot, automobile, automobile supporting.

2. Feed industry, aluminum smelting machinery, refrigeration industry.

3. Iron and steel industry, combustion control system, non-ferrous metal smelting.

4. Glass industry, engineering machinery, textile machinery, water treatment.

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- Why choose us

1. We will provie you the product info and picuture.

2. Large stock, fast delivery.

3. Competitive prices and immdiate quotation.

4. Professional service,professional technical support.

5. Warranty time is one year.

6. Strict test machine before shipment.

7. We could help you to get any components which is difficult to get.

- Disclaimer

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