Xiangyang Tenghui Electric Manufacturing Co., LTD., as a manufacturer of 20 years of production equipment experience, Tenghui technology knows: a high-performance motor is only the starting point of industrial power, only with the coordination of electrical equipment, in order to build a safe, intelligent and efficient complete power system! This article will reveal the four core supporting equipment for the efficient operation of high-voltage motors to help enterprises achieve energy efficiency upgrade and cost optimization!
High voltage switchgear: the "first line of safety" for high voltage motor systems In the design and operation of high-voltage motor system,
In the design and operation of high-voltage motor system, high-voltage switchgear, as the core control node of power access, is an indispensable "power gatekeeper". It is not only the motor start and stop instruction center, but also the cornerstone of the safe operation of the whole system. As a manufacturer of high voltage motors, we always emphasize that the selection and configuration of high voltage switchgear directly determines the reliability, safety and intelligence level of the motor system!
1、 the core function and necessity of high voltage switchgear Power on/off control As the "main gate" between the motor and the power grid, the high voltage switch cabinet realizes the accurate opening and closing of the motor power supply through the circuit breaker or contactor, ensuring the safe and controllable start-stop operation. For example, a chemical plant due to the use of inferior switchgear caused switching delay, resulting in motor burn accident, direct losses of more than one million yuan. Short circuit and overload protection When the motor or line occurs short circuit or overload, the built-in relay protection device (such as microcomputer comprehensive protection) can cut off the fault current within 10ms to avoid equipment damage and even fire risk. Data comparison: The motor system equipped with intelligent protection switchgear reduces the failure shutdown rate by 60%. Power distribution and monitoring Support multi-loop power supply design, flexible distribution of power to different motors or equipment; Integrated voltage, current, power factor and other real-time monitoring functions to provide data support for energy efficiency optimization. For example, a steel factory found power waste points through the monitoring data of the switch cabinet, and the annual electricity saving exceeded 500,000 yuan.
2、High voltage soft starter: smooth start, protect the health of the motor
The traditional direct start impulse current is up to 6-8 times the rated current, resulting in grid fluctuations, mechanical damage, and a surge in electricity bills! When the high-voltage motor starts directly, it will produce huge impulse current, which will cause damage to the power grid and the motor itself. The high-voltage soft starter is like a "gentle" guardian, which can effectively limit the starting current by gradually increasing the voltage, realize the smooth start of the motor, extend the service life of the motor, and reduce the impact on the power grid.
The high voltage solid state soft starter adopts thyristor dynamic voltage regulation technology, which accurately controls the starting current at 2-3 times the rated current and reduces the mechanical stress impact by 50%.
Supports a variety of modes, such as ramp voltage and current limiting startup, suitable for different load scenarios such as fans, pumps, and compressors.
Built-in motor protection module, real-time monitoring of overload, phase loss, overheating and other failures, startup success rate increased to 99.9%.
Customer case: After installing the fan motor in a cement factory, the annual maintenance cost was reduced by 30% and the equipment life was extended by more than 2 years.
3、 high voltage capacitance compensation cabinet: from the "electricity bill" to tap potential profits
Using dynamic switching technology, the power factor is compensated to more than 0.95 in real time to avoid electricity penalty;
Harmonic suppression function (THD < 5%), protect motor winding insulation, reduce 30% harmonic loss; Wireless iot modules remotely monitor and automatically generate energy efficiency reports to help companies achieve ISO 50001 certification.
Measured results:After the transformation of rolling mill system in a steel plant, the average monthly electricity cost is reduced by 18%, and the payback period is only 8 months.
Miss. Zeng
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