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High-voltage motor control switchgear
High-voltage motor control switchgear

Scope of Application:High-voltage motor control switchgear (3.3kV-15kV) controls, protects, and intelligently manages large industrial motors (like pumps and compressors) in heavy industries such as petrochemicals, power generation, and mining. metallurgy, and mining.

Rated Voltage: 3.3kV, 6.6kV, 7.2kV, 11kV, 12kV, 13.8kV, 15kV (compliant with IEC 62271-1/IEEE C37.04).
Rated Current: 400A to 5000A.
Rated Short-Circuit Breaking Capacity: 25kA/40kA (1s or 3s short-time withstand current).
Power Frequency Withstand Voltage: 28kV (12kV systems) / 38kV ( 15kV systems).
Lightning Impulse Withstand Voltage: 75kV (12kV) / 95kV (15kV systems).

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Low Voltage Motor Control Center (LV MCC)

Scope of Application:Suitable for the starting, stopping, protection, control, and monitoring of industrial three-phase asynchronous motors with rated voltages up to AC 1000V.

Rated Voltage (Ue): AC 380V, 400V, 415V, 440V, 480V, 660V, 690V (compliant with IEC 60439 / IEC 61439).
Rated Insulation Voltage (Ui): ≥ AC 690V / 1000V.
Rated Current (Ie): Covers motor power range (typical: 0.37kW – 630kW).
Rated Short-Time Withstand Current (Icw): Typically 15kA / 1s, 20kA / 1s, 25kA / 1s, 35kA / 1s, 50kA / 1s (to be specified).
Control Circuit Voltage: AC 110V/230V, DC 24V/110V/220V (to be specified).

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INDUSTRY NEWS More
Switchgea
Development Directions of Switchgear under New Quality Productive Forces
      Enhancing development quality and transitioning from the previous extensive economic growth model to intensive, high-quality development are equally crucial for the evolution of switchgear.         The switchgear industry suffers from severe homogenization, with low-quality products proliferating unchecked through simple repetition, competing solely on price and cost while neglecting quality. This approach consumes vast material resources without regard for sustainability, prioritizing short-term compliance over long-term reliability.
2025/09/09
Marine Switchboard
Marine Switchboard Market Share Analysis and Development Trend Analysis
Conclusion: European players maintain short-term dominance in premium segments, but Chinese manufacturers are rapidly gaining ground through cost and scale advantages. Future competition will center on smart functionalities, green compatibility, and modular innovation, with technological agility determining market repositioning.
2025/07/17
Switchgear
The market share of Chinese switchgear exported to Indonesia
China holds 60-70% of Indonesia's switchgear imports, led by cost-competitive LV/MV products. Key drivers: Indonesia's power demand growth (6-7%/year) and infrastructure projects. Challenges include local content rules (TKDN) and certification. Growth areas: renewables and smart grids. Chinese firms advance via tech upgrades and localized production.
2025/07/16
Control-Switchgear
Chinese-Developed Intelligent Power Distribution Switchgear Debuts at Munich Event
Munich, Germany – From June 24th to 27th local time, the 27th Laser World of Photonics was held at Messe München. ShengLong Electric showcased its self-developed AI-iPanel, the world's first artificial intelligence power distribution switchgear, attracting significant attention from global professionals.
2025/07/15
technical knowledge More
Medium-Voltage-Switchgear
Type Testing of Medium Voltage Switchgear According to IEC Standards
Type testing of medium voltage switchgear in accordance with IEC standards may involve two scenarios: First, testing at domestic accredited testing stations in compliance with the IEC 62271 series standards, resulting in test reports that conform to IEC 62271. Second, testing at international STL (Short-Circuit Testing Liaison) testing stations according to IEC standards and STL guidelines.
2025/09/22
PV-Grid-Connected-Cabinet
Composition and Functions of a 400V PV Low-Voltage Grid-Connection Cabinet
A 400V PV Low-Voltage Grid-Connection Cabinet is a critical interface device that connects the photovoltaic (PV) power generation system to the low-voltage grid. It is a dedicated distribution panel integrating protection, monitoring, metering, and control functions. It is primarily composed of the following core components:
2025/09/11
Switchgear
Selection Standards for Standard Parts in Switchgear
Switchgear requires the use of many fastening standard parts such as bolts, nuts, washers, and rivets. It is essential to select appropriate standard parts based on different applications to ensure functional requirements are met while enhancing product safety and cost-effectiveness.
2025/09/02
Marine Switchgear
Medium Voltage Marine Switchgear Solution
  Incoming Line Configuration: Marine switchgear systems are powered by multiple diesel generators operating in parallel. Each incoming line must be equipped with voltage transformers for accurate voltage measurement on the supply side.
2025/09/01
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