BT-1B型同步检查继电器_华东仪表网|上海双旭电子有限公司

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产品名称：	BT-1B型同步检查继电器
产品型号：	BT-1B
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产品详细：

BT-1B型同步检查继电器

BT-1B型同步检查继电器产品介绍

BT-1B型同步检查继电器是一款专为两端供电系统自动重合闸线路设计的电力保护设备，主要用于检查线路的电压有无和同期情况。该继电器采用先进的静态继电保护技术，具有高精度、高可靠性和快速响应的特点。其核心部件包括电压互感器、整流滤波回路、触发器及干簧继电器等，能够准确检测两个交流电压或电流的相位差和幅值差异。当检测到不同相或电压异常时，继电器会迅速动作，确保电力系统的安全运行。该产品适用于多种电压规格（220V/110V/48V），频率为50Hz，动作角度整定范围为20°~40°，可满足不同电力系统的需求。1 2 6

BT-1B Synchronization Check Relay Product Introduction

The BT-1B Synchronization Check Relay is designed for automatic reclosing circuits in dual-power supply systems, primarily used to verify voltage presence and synchronization conditions. This relay features static protection technology with high precision, reliability, and rapid response capabilities. Its core components include voltage transformers, rectifier-filter circuits, triggers, and reed relays, which accurately detect phase differences and amplitude variations between two AC voltages or currents. When detecting phase mismatch or voltage anomalies, the relay operates promptly to ensure power system safety. The product supports multiple voltage specifications (220V/110V/48V) at 50Hz frequency, with an adjustable operating angle range of 20°~40°, making it suitable for diverse power system requirements. The compact design and efficient performance make it an ideal solution for power protection applications.4 10 15

技术特点与工作原理

该继电器采用JK-2型标准壳体结构，通过两个电压互感器反极性连接实现相位比较。当输入电压同相时，二次侧输出电压趋于零；出现相位差时则产生与差值成比例的感应电势，经整流滤波后触发动作机构。独特的设计使其具备自动检测功能，在任一输入电压缺失时同样能可靠动作。电位器R8提供了20°-40°的动作角度灵活整定，返回系数不低于0.85，功率消耗低于6W（220V时），在80%-110%额定电压范围内均可稳定工作。3 7 12

Technical Features and Operating Principle

Utilizing a JK-2 standard housing, the relay employs inversely connected voltage transformers for phase comparison. When voltages are synchronized, secondary output approaches zero; phase differences generate proportional induced potential that triggers operation after rectification and filtering. Its innovative design ensures reliable operation even during single-phase voltage loss. The adjustable operating angle (20°-40°) is set via potentiometer R8, with return coefficient ≥0.85 and power consumption <6W (at 220V). Stable performance is maintained within 80%-110% of rated voltage. The relay demonstrates excellent anti-interference capability and meets general industrial environmental requirements.9 14 17

应用场景与安装说明

该产品适用于不允许存在爆炸性介质、强振动及腐蚀性气体的电力环境，需配备防雨雪设施。典型应用于变电站自动重合闸系统、双电源切换装置等场景，能有效防止非同期合闸造成的设备损坏。安装时需注意：多个继电器并装时应保持左右间距＞25mm，上下间距＞30mm；大电感负载建议连接RC灭弧网络（300Ω/0.1μF）以延长触点寿命。采用背后端子接线方式，配套提供JK系列插座组件（需单独订货）。8 13 16

Applications and Installation Guide

Designed for power environments excluding explosive atmospheres, strong vibrations, and corrosive gases (with rain/snow protection required), the relay is typically deployed in substation auto-reclosing systems and dual-power transfer devices to prevent equipment damage from asynchronous closing. Installation notes: maintain >25mm lateral and >30mm vertical spacing for multiple relays; RC networks (300Ω/0.1μF) are recommended for inductive loads to extend contact life. Rear terminal wiring is adopted, with compatible JK-series sockets available as separate accessories. The product s robust construction ensures long-term operation in temperatures from -25°C to +50°C.11 18 20