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General| Brand | Fuji Electric |
|---|---|
| Model | EW32EAG |
| Category | Circuit breakers |
| Language | English |
Overview of low-voltage circuits and common faults like overcurrent, ground faults, and phase-loss.
Covers overcurrent faults, overload protection, and short-circuit protection mechanisms.
Details phase-loss faults and protection methods, including burnout prevention.
Explains different types of overcurrent tripping and factors affecting them.
Discusses short-circuit current breaking, capabilities, and related phenomena.
Addresses switching durability and trip switching durability of MCCBs.
Covers power frequency and impulse withstand voltage ratings.
Outlines key factors and considerations for selecting MCCBs.
Discusses MCCB selection for motor circuits, including starting currents.
Explains MCCB selection for capacitor circuits, considering arc reignition and inrush current.
Explains MCCB usage and selection for DC circuits, including special considerations.
Covers grounding methods and ground fault protection in system applications.
Lists standard operating conditions for MCCB performance and usage.
Discusses application considerations for high-temperature, cold, and high-altitude environments.
Covers precautions for reversed connections and proper tightening torque.
Explains how transient inrush current can cause MCCB malfunction and prevention.
Lists common faults during MCCB operation and their countermeasures.
Covers initial, periodic, and post-overcurrent tripping inspection procedures.
Provides guidelines for MCCB deterioration diagnosis and replacement based on durability.
Details the objective, formulas, and examples for calculating short-circuit current.
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