May 31, 2021 Motor Manager
Motor manager enables you to detect all critical load states of asynchronous motors. Benefit from reliable motor management: active power measurement enables you to protect your motors against overload or underload, as in the case of conveyor or pump monitoring. Freely programmable switching and signalling thresholds provide individual motor protection.
The advantages of motor manager are as follow:
- Integrated full motor protection with bimetal function and thermistor evaluation
- Protection of high-quality system parts with freely configurable signalling and switching thresholds.
- Operating data and energy data acquisition without the need for complex sensors
- Process data such as performance values, operating hours, and switching cycles are safely transmitted between the field and control level.
- Easy configuration and diagnostics
- Connection to the controller via bus gateway.
Motor Manager is available through Quick Time Engineering Inc.
Motor Management Relay
Motor management relay can both control and protect the motor. This eliminates the need to wire complex circuits to achieve desired control functionality. These relays can be configured for multiple control sources and starter profiles. All control signals are sent directly to the relay, with the contactor output changing state based on both control and protection.
A motor management relay removes the need for this extra wiring but achieves the same control requirements. A simple user interface provides control and status indication. Control signals can also be sent directly to the device over the network. This is all achieved with a single cable connection to the user interface and the network. The network is already directly connected to the device as it would be in the traditional setup above for device monitoring.
Control signals such as start, stop, auto and device reset may be wired directly to onboard I/O. This removes the need for holding circuits, separate auto circuits
Motor Management Relay is available through Quick Time Engineering Inc.
Thermistor Motor Protection Relay
A thermistor is a small non-linear resistance sensor, which can be embedded within the insulation of a motor winding, to provide a close thermal association with the winding. It’s made from metal oxide or semiconductor material. The main advantages of thermistors are the small size that allows them to be installed in direct contact with the stator winding. Secondly, thermistors’ low thermal inertia gives a rapid and accurate response to winding temperature changes. Thermistor measure temperature directly irrespective of how these temperatures are initiated. Lastly, thermistors can be used to detect overload conditions in motors driven by frequency converters.
Thermistor motor protection relay is typically embedded in motors. It will monitor the resistance of the thermistor and if increase above the fixed threshold (due to an increase in measured temperature), the relay will be de-energised. The resistance must decrease below the “release” threshold before the relay re-energises again.
Thermistor Motor Protection Relay is available through Quick Time Engineering Inc.
Manual Motor Starter
Motor starters are devices that start and stop electric motors using manual or automatic switches, and provide overload protection to the motor circuits. Key specifications include the intended application, starter type, electrical specifications including the number of phases, current, voltage, and power ratings, and the features. Motor starters are used wherever electric motors over a specific horsepower are operated. There are several types of starters, including manual, magnetic, soft-starts, multi-speed, and full voltage types, among others.
Manual motor starters are the simplest kind of motor starter and consist of an on/off switch and an overload relay. They are, as their name suggests, operated manually. A button, toggle, or rotary switch mounted directly on the starter is pressed to start or stop the connected electrical equipment. Mechanical linkages from the buttons or toggle force the contacts to open and close, starting and stopping the motor.
In the manual motor starter, the capacitor and coils present in the motor will control the direction of a single-phase induction motor. If the motor reaches a specific speed, the built-in starter winding starts to produce a click sound. Manual motor starters give motors overload protection. They make sure that the required amount of current passes to the motor and help with the temperature control in the motor.
All motor starters share certain power control functions. They are rated by current (amperes) or power (horsepower) and have remote on/off control and motor overload protection. They have plugging and jogging functions that rapidly make or break a current.
A self-protected starter is a variation of the manual starter and is often used in multiple-motor control panels. The control panels have low-level, instantaneous overcurrent protection which lets a single upstream short-circuit-protection device protect several starters. This means the motors don’t need individual short-circuit protection. These manual starters can be used on both single and three-phase motor loads.
Manual Motor Starter is available through Quick Time Engineering Inc.
Quick Time Engineering Inc is an international company with offices and distribution networks in the USA, Hong Kong, Europe and Malaysia.
In its 20 years of operation since 1998, Quick Time Engineering Inc had emerged from a local engineering company with a single staff that provided solutions in factory automation to become nowadays a company that serves the Oil & Gas industries, EPC contractors, System Integrators and other industrial automation and process control companies worldwide. Customers from over 50 countries worldwide trust us with their need for process control instruments and industrial automation products.
For more information about Quick Time Engineering Inc, visit www.quicktimeonline.com or email enquiry@quicktimeonline.com
