FMGa标准互感器/FMGa
产品概述
FMGa标准互感器是一种采用双线并绕空心线圈设计的精密电磁测量设备，适用于直流和低频电磁测量场景，同时可与冲击电流计配套使用。该产品在高校实验教学中广泛作为标准器件或被测器件，能够满足教学与科研的双重需求。FMGa提供陶瓷骨架和塑料骨架两种款式，用户可根据实际应用环境灵活选择，制造商还支持定制化需求，以适应特殊测量场景。1
技术特点
FMGa标准互感器在设计和性能上具有显著优势。其空心线圈结构确保了良好的线性度和低磁滞损耗，适用于高精度测量。产品工作频率范围为1000±20Hz，环境温度需保持在20±2℃以确保最佳性能。互感器采用红、黑双色接线柱区分同名端，简化了安装流程。此外，其绝缘电阻超过100MΩ，耐压能力达500V/50Hz，保障了长期稳定性和安全性。需要注意的是，使用时应避免靠近铁磁性物质，且连续工作时间不宜超过2小时。2
应用场景
FMGa标准互感器主要应用于三大领域：一是电力系统的电流监测与保护，配合仪表实现精准测量；二是实验室环境下的电磁特性研究，如磁通量测量或电路参数标定；三是工业自动化场景中的信号转换与隔离。其轻量化设计和紧凑结构（典型尺寸14×14×10cm）使其易于集成到各类设备中。制造商强调产品的环境适应性，建议在5~40℃的干燥环境中存放以延长使用寿命。4
Product Overview
The FMGa standard mutual inductor features a bifilar-wound air-core coil design, serving as a precision electromagnetic measurement device for DC and low-frequency applications. Compatible with ballistic galvanometers, it functions both as a reference component and test subject in university laboratories. Available in ceramic or plastic frame versions, the product supports customized configurations to address specialized measurement requirements. Its open-core structure ensures minimal interference from external magnetic fields.1
Technical Specifications
Engineered for reliability, the FMGa exhibits excellent linearity with a typical deviation of ≤0.2%. The dual-color coded terminals (red/black) facilitate correct polarity identification during installation. Operational parameters include a working frequency of 1000±20Hz and ambient temperature range of 20±2℃ for optimal performance. The epoxy-encapsulated windings provide robust insulation (>100MΩ) and withstand 500V AC for 1 minute. Users should maintain a minimum clearance of 30cm from ferromagnetic materials during operation. The lightweight construction (1.7kg) enables flexible deployment across different experimental setups.2
Applications
Widely adopted in three primary domains: power system current monitoring (paired with measuring instruments), laboratory electromagnetic research (flux measurement/circuit calibration), and industrial signal conditioning systems. The compact form factor (Φ15×160mm max) allows seamless integration into switchgear cabinets or test benches. For prolonged storage, manufacturers recommend moisture-proof packaging in controlled environments (relative humidity 40-80%). The product s consistent performance makes it suitable for comparative studies requiring repeatable measurement conditions.4
FMGa标准互感器（固定单值）
的详细介绍FMGa标准互感器/FMGa
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标 准 互 感 器（固定单值）
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序号
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型号
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名义值 H
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准确度%
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额定电流 A
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出厂价￥
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陶瓷骨架
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塑料骨架
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4-41
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FMGzz
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0.00001
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5
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1.6
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1200
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1100
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4-42
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FMGz
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0.0001
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2
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0.8
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910
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810
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4-43
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FMGa
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0.001
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0.2
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0.38
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750
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650
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4-44
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FMGb
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0.01
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0.2
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0.15
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780
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680
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4-45
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FMGc
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0.1
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0.2
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0.05
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810
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710
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4-46
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FMGd
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1
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0.5
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0.015
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910
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810
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4-47
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FMGe
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10
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2
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0.005
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1200
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1100
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