Discussion on the application of water resistance soft starter in high voltage ac motor of a company

2020 ◽  
Vol 2 (1) ◽  
pp. 29-35
Author(s):  
Zhou Guoping
Keyword(s):  
High Voltage ◽  
Water Resistance ◽  
Ac Motor ◽  
Soft Starter ◽  
A Company

Explosion-Proof Soft Starter Control System Based on DSP

2012 ◽  
Vol 214 ◽  
pp. 830-834
Author(s):  
Xin Niu ◽  
Ya Qiong Wang
Keyword(s):  
Control System ◽  
High Performance ◽  
Low Cost ◽  
Control Device ◽  
Low Power Consumption ◽  
Soft Start ◽  
Ac Motor ◽  
Soft Starter ◽  
Processing Ability ◽  
Starting Control

According to requirements for the use of explosion-proof and intrinsically safe AC motor soft start device in coal mine, the paper designed and realized explosion-proof soft starting control device based on the TMS320LF2406A as soft starter control core.TMS320LF2406A is TI company's new DSP products, superior to the MCU extensive used in general micro-control unit.It has advantages of low cost, low power consumption and high performance processing ability.

SOFT START-UP OF HIGH-VOLTAGE AC MOTOR OF GENERATOR UNIT FORMATING THROUGH BY THE USE OF LOW-VOLTAGE CURRENT SUPPLY

2015 ◽  
Vol 19 (95) ◽  
pp. 125-128
Author(s):  
Konstantin P. Fofanov ◽  
◽  
Victor S. Khilov ◽  
Evgenij V. Nosanenko
Keyword(s):  
High Voltage ◽  
Low Voltage ◽  
Soft Start ◽  
Ac Motor ◽  
Start Up ◽  
Generator Unit

Con Edison's Success in Reducing Risk: Applying Real-World Lessons Learned to Broaden Spill Planning and Response Programs and Build Personnel Competencies

2014 ◽  
Vol 2014 (1) ◽  
pp. 1910-1921
Author(s):  
Patrick Hanley ◽  
Thomas Healy ◽  
Nancy Shannon
Keyword(s):  
New York ◽  
High Voltage ◽  
Distribution System ◽  
Wide Spectrum ◽  
New York State ◽  
Lessons Learned ◽  
Direct Access ◽  
Incident Command ◽  
The Impact ◽  
A Company

ABSTRACT Con Edison's service territory covers more than 1,000 miles of inland and coastal shoreline in one of the most heavily regulated and scrutinized areas of the Unites States: New York City. In November 2009, the company experienced a catastrophic failure of a large transformer at a high-voltage electric substation, resulting in approximately 200 gallons of dielectric oil impacting the Bronx River. While the volume of oil was relatively small, the duration of the cleanup lasted nearly one month with costs of approximately $1.75 million, plus a nearly $1 million compliance order issued by New York State for violation of state regulations. Following this event, and through a study of all historical spill incidents, it was clear that the primary risk of spills to the environment came from the more than 30 million gallons of oil contained in the company's high-voltage transformers and oil-filled electric transmission and distribution system, which were not covered by existing Facility Response Plans developed as part of implementing OPA 90. Given these results, the company sought to refine existing spill response program elements to further reduce risks and enhance environmental stewardship. Using the existing Spill Management Team (SMT) model in the OPA 90 program, a company-wide SMT approach was created to better prepare for and reduce the risks associated with potential spills from all company sources. The team consists of more than 50 personnel from the various business units of the company, providing direct access to a wide spectrum of skill-sets and specialties. In addition, the company has developed Oil Spill Contingency Plans (OSCP)—also covered under OPA 90—with detailed response tactics for over 300 locations. On the heels of the program implementation, a large spill of dielectric oil from an underground high-voltage electric distribution line resulted in more than 2,000 gallons impacting the Hutchinson River. While the impact to the waterway was greater than in the 2009 event, the response duration was only 6 days with clean-up costs just over $300,000 with no state issued compliance order, a significant improvement. This result was due, in large part, to implementation of the OSCP and SMT programs. Through these experiences, the many benefits of establishing a company-wide SMT and the OSCP's were realized, including developing spill response and Incident Command System expertise, refined coordination, and improved cost management. These efforts have significantly reduced the company's spill risk exposure by improving response capabilities.

A Novel Type of Solid-State Soft-Starter

2012 ◽  
Vol 241-244 ◽  
pp. 738-741
Author(s):  
Zheng Wang Xu ◽  
Hui Wang
Keyword(s):  
Solid State ◽  
High Voltage ◽  
Simple Structure ◽  
Low Voltage ◽  
High Reliability ◽  
Bridge Structure ◽  
Motor Systems ◽  
Novel Structure ◽  
Soft Starter ◽  
Application Prospects

Among the modern industry, soft-starter has taken an important role in large-capacity motor systems. But all kinds of using soft-starters have some shortcomings, their application is restricted because of that. This article describes a type of solid-state soft-starter with a novel structure, in which a rectifier bridge structure is used in stead of the traditional antiparallel structure. Its same points and differentia are analyzed comparing with the traditional soft-starters. The new soft-starter overcomes some traditional shortcomings. It can be used for both low voltage and high voltage motor starting. Especially, when applied to a high-voltage motor starting, it has the advantage of simple structure and high reliability. This kind of soft-starters can be used in broad application prospects.

Research on Current Signal Acquisition of Soft-Start Controller

2013 ◽  
Vol 273 ◽  
pp. 322-326
Author(s):  
Ji Hong Guo ◽  
Li Li
Keyword(s):  
System Performance ◽  
High Speed ◽  
Sampling Method ◽  
Signal Acquisition ◽  
Mean Square ◽  
Current Signal ◽  
Ac Sampling ◽  
Soft Start ◽  
Ac Motor ◽  
Soft Starter

To study of current signal acquisition circuit the mine explosion-proof and intrinsically safe type AC motor soft starter controller, which carries on AC sampling according to the soft start controller. the system adopts AC sampling method for sensor two information without any deformation processing, it is high-speed sampling. At the same time, the system uses root-mean-square algorithm to process AC signal and obtain the required current parameters. The experiment proves that this method enhances the overall system performance.

Design of the DSP Controller for the Magnetic-Control Soft-Starter

2013 ◽  
Vol 344 ◽  
pp. 145-148
Author(s):  
Jing Chen ◽  
Bin Zhou ◽  
You Xin Yuan ◽  
Huai Bin Zhu
Keyword(s):  
High Performance ◽  
High Reliability ◽  
Magnetic Control ◽  
Price Ratio ◽  
Starting Current ◽  
Soft Start ◽  
Ac Motor ◽  
Soft Starter ◽  
Three Phase ◽  
Dsp Controller

This objective of this work is to design and implement the magnetic-control soft-start controller for the motor starting at rated current. The motor is accelerated smoothly, the starting current is reduced and motor starting performance is improved by this soft-starting technology. For eliminating the harmfulness of the starting current of the three-phase AC motor, the DSP controller is used as the controller in this magnetic-control soft-starter. The design of the DSP controller for the magnetic-control soft-starter is first proposed. The hardware and software designs are realized in this paper, and it is subsequently verified experimentally. Experimental results show that the DSP controller for the magnetic-control soft-starter has extensive applicability, high reliability and high performance price ratio.

High-Voltage Three-Phase Asynchronous Motor Soft-Starter via Hyristor for Water Cooling System of Steel Mill

2014 ◽  
Vol 496-500 ◽  
pp. 1477-1480
Author(s):  
Yong Yang ◽  
Ming Yang
Keyword(s):  
High Voltage ◽  
Cooling System ◽  
Asynchronous Motor ◽  
Water Hammer ◽  
Water Cooling ◽  
Steel Mill ◽  
Soft Starter ◽  
Three Phase ◽  
Water Cooling System ◽  
Water Hammer Effect

This article introduces a high-voltage three-phase asynchronous motor soft-starter via thyristor that is suitable for water cooling system of steel mill. It improves motor start and stop characteristics, effectively eliminates water-hammer" effect caused by traditional direct start and stop, and is making more and more important positive impacts in the water cooling system of steel mill.

A Novel Coupled Auto-transformer and Magnetic Control Soft Starter for Super Large Capacity High Voltage Motor.

2018 ◽  
Author(s):  
J. Yuan ◽  
C. Wang ◽  
Y. Zhu ◽  
H. Zhou ◽  
L. Wei ◽  
...  
Keyword(s):  
High Voltage ◽  
Magnetic Control ◽  
Large Capacity ◽  
Soft Starter
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