About Je-Power

Established in 1915, Jefferson Electric Power LLC is the forerunner and pioneer of the electric power industry. We have a long history in the R&D and production of transformer, UPS, reactive power compensation, power filters and other power protection and improvement devices. The mature application of the products ...

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High-quality products


JE's product line strictly follows the ISO9001 quality management system and ISO14001

Make our customers use electrical energy more efficient and safer.
We develop and produce high-performance electrical energy utilization and power distribution system protection products...
 
Realizing efficient electrical energy use, saving more than 7% energy for users

Our goal is to improve our customers' energy use, reform the energy conversion method, create a safer and efficient environment...

Products

JE has a long production history and mature technology, and has become one of the largest and most powerful technology manufacturing companies in Connecticut after a long period of market testing. The company mainly produces transformers, UPS, reactive power compensation devices, active power filters, etc...

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Application

JE's product line strictly follows the ISO9001 quality management system ...

Service Network.

In addition to comprehensive products, the industry solutions provided by JE also contain perfect services, including design, assessment analysis, project management services and after-sales service. After many years of experience, we have enough knowledge, experience and ability to provide customers with the best service. ¨C Get to know the service network of JE (go to the following text)

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News Center

UK MoD Signs £20M Nano UAS Contract

No German Decision on Heron Replacement before 2012

US Naval Air Warfare Center Evaluates New Missions for AAI Shadow

South Korea Moves Ahead with Stealth Combat UAS Demonstrator

 
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The Fourth United States National Energy Summit opened in Las Vegas


At U.S. Pacific time 9:00 on August 30, 2011, the Fourth United States National Energy Summit opened in Las Vegas. The meeting, which was an energy conference of the highest standards in the United States and focuses on "the future of energy", was presided over by U.S.




Energy conservation becomes a source of the new profit in industrial production chain.

Careers

 
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Electronics Engineer


RESPONSIBILITIES
Contributing to mobility products evolution and development strategy
Software design and implementation for CDMA related features
REQUIREMENTS
Bachelor degree or above in Telecommunication, EE, Computer or related areas




Knowledge and experience of wireless network, knowledge on CDMA base station and Lucent base station product is preferred
Good understanding of large scale software development cycle and process
Highly self-motivated and able to work effectively under pressure
Be flexible on work-time during load delivery
Strong communication skill in English
Good teamwork

Intermediate pressure dynamic var compensation (DSHT-TSC)

Purpose: DSHT series dynamic reactive power compensation device uses world advanced thyristor technology. According to the system and load changes, use thyristor to constitute contactless AC switch to drive multi-capacitor for rapid and frequent switching and achieve no transition adjustment of the capacitor. Since the over-voltage and over-current in the process of switching are greatly reduced, the capacitor life is also greatly improved, and it is conducive to stable running of the system. The capacitor branch of DSHT series intermediate pressure dynamic reactive power compensation device is also connected to tuning reactor in series, which can effectively prevent harmonic amplification, absorb part of the harmonic currents, and suppress the harmonic.
DSHT is widely used in various industrial environments, with strong environmental adaptability and stability to meet the rapid changes in load, large impact, low power factor and other reactive power compensation requirements.

Features:
 Short response time: quick switching speed, capacitor switching within 20ms
 Superior compensation performance: automatically compensate and regulate reactive power according to the reactive power of the grid and voltage control requirements, improve system power factor and keep it higher than 0.95.
 Advanced contactless electronic switch: use bi-directional inverting-parallel thyristor technology to achieve contactless electronic switch, zero voltage switching, no impact, no inrush current or overvoltage, no transients or harmonics, which will increase system stability and greatly extend the switch life.
 Harmonic absorption and suppression: filter reactor in series ensures that not only harmonics is prevented, but also prevents harmonic amplification and absorbs some harmonic currents while compensating reactive power.

Voltage level: suitable for reactive power compensation for 3kV, 6kV, 10kV

Capacity: single intermediate pressure set up to 1350kvar

 


 Transformer
 - Oil immersion transformer
 - Dry type transformer
 - Special transformer
 UPS
 - 1-40kVA D/T series
 - 10-210kVA Abl-Bric series
 - DSHT-TSC
 Reactive power compensation
 - AC filter capacitor
 - Reactor
 - Wattless power controller
 - silicon-controlled switch (SCS) 
 - Security filtering compensation component
 Active power filter
 - DIVORSINE