Hartland Controls 的 HCT 系列重型变压器通过磁感应将一交流电压转换为另一交流电压，适用于各种应用。

Hartland Controls 的启动和运行电容器在内部构造，以满足各种 HVAC 电气负载要求。

Hartland Controls 的 HCC 系列接触器是遥控/电动开关，由用于打开和关闭外部电路的触点组成。

Hartland Controls 的继电器是电磁开关，由一个电路中的低功率信号或电流激活，以打开或关闭另一个电路。

Hartland Controls 的 HHS 系列电机硬启动电容器套件通过消除启动时通常发生的热浪涌来提高 HVAC 设备的效率。

Hartland Controls' Basic Relay Terminology Guide

A contactor usually has both moveable and fixed, low resistance contacts which do the actual circuit opening and closing.

Contact bounce is the uncontrolled opening and closing of the contacts due to forces within the relay (internal forces), whereas contact chatter is the uncontrolled opening and closing of contacts due to external forces.

虽然电容器发生故障很容易进行直观识别，但电容器降额则需要通过空调表现出的某些症状来发现。

Hartland's industrial controls product catalog.

A transformer is a passive electrical device designed to change one AC voltage to another by magnetic induction.

Capacitors come in many different shapes, sizes and materials. They're used in a wide range of applications, including electronics, appliances, transportation and power grids worldwide.

From everyday applications such as refrigerators and garage doors, to signaling and protecting electrical power systems, relays are in use every second of every day.

Capacitors are attached to motors and constructed to release electrical power in different methods. The energy can either be released instantly to start the motor, or released over a period of time to keep it running.

Power contactors are used in large equipment for motor controls.

Hartland Controls 专门从事任务关键型电气接触器、II 类变压器、电容器、继电器、辅助开关和配置组件的设计和制造。

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