Introduce
The MSQ series current transformer is a precision device designed for measuring, monitoring, and protection in low-voltage power distribution systems (rated voltage ≤720V AC, 50/60Hz). It safely and accurately converts high primary currents into standardized low secondary currents, serving as a critical component for energy metering, equipment operation monitoring, and fault protection. With its versatile design, it is also applicable for integration into complete sets of mining transformer equipment. The product series offers a wide range of sizes and specifications to accommodate diverse installation scenarios.
Applications
1. Current Measurement, Monitoring, and Protection: Used for current measurement, operational status monitoring, and fault protection in electrical circuits and equipment.
2. Motor and Equipment Power Measurement: Suitable for measuring current and power in electric motors, lighting systems, air compressors, HVAC systems, air conditioning units, and automation control systems.
3. Power Monitoring and Metering: Provides precise input signals for current, power, and energy monitoring devices.
4. Relay Protection: Serves as a critical signal acquisition unit for relay protection devices.
5. Integrated Equipment Systems: Particularly suitable for integration into complete electrical equipment sets, such as mining transformers.
Features
1. Wide Range & High Precision: Primary current measurement ranges from 1A to 6000A, with a rated output of 1A or 5A. Available in accuracy classes 0.5 and 1.0 to meet diverse needs ranging from general monitoring to precision metering.
2. Excellent Electrical Performance: Operates at 50/60Hz with a measurement range of 5%–120% of rated current and a rated operating voltage of up to 720V (AC). Features high dielectric strength (3.0kV/1mA/1min) and high insulation resistance (≥100MΩ at DC 500V).
3. Robust Mechanical Structure: Constructed with a flame-retardant PC/UL94-V0 housing, PBT bobbin, and silicon steel core; utilizes screw connections to ensure long-term, stable operation in harsh environments.
4. Strong Environmental Adaptability: Wide operating temperature range (-25°C to +75°C) and humidity tolerance up to 85%, making it suitable for various industrial environments.
5. Safe and Convenient Installation: Certain models (such as split-core types) are designed for easy on-site installation and retrofitting without the need to disconnect the main circuit.
6. Comprehensive Specification Coverage: Offers a wide range of models (e.g., MSQ-B, MSQ-30B, MSQ-20, MSQ-30I, MSQ-30, MSQ-40, MSQ-50, MSQ-60, MSQ-80, MSQ-85, MSQ-100, MSQ-120, MSQ-125) covering almost all common current ratios from 5/5A to 6000/5A. Each model supports various rated burdens (e.g., 2.5VA, 5VA, 10VA, 15VA) depending on the accuracy class, allowing for flexible selection based on the load requirements of downstream equipment. 6. Compliance with international standards: The product design meets international and domestic standards such as IEC61869-2, EN60044-1, VDE0414-44-1, and GB1208-2006, ensuring guaranteed quality.
Technical Date
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Electrical Parameter
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Frequency
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50/60Hz
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Rated Input
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1A-5000A
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Measuring range
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5%In-120%In
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Rated Output
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1A,5A
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Rated Voltage
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0.72KV(AC)
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Dielectric strength
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3.0KV/1mA/1min
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Insulation Resistance
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DC500V/100MΩmin
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Mechanical Parameter
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Case
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PC /UL94-V0
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Bobbin
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PBT
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Core
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Silicon steel
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Construction
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Screw
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Operating Temp
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－25℃～＋75℃
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Operating Humidity
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≤85%
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Output Connection
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Terminal
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Accuracy class characteristics
Installation
