|
| METHOD OF ELECTRIC POWER LOSS REDUCTION. |
| Invention concerns electrical equipment. Method is based on current unbalance factor reduction in three-phase feed line and transformer windings. |
| Publishing date: April 23, 2009 |
|
| METHOD AND DEVICE FOR REDUCING ELECTRICAL ENERGY LOSS IN LOW-VOLTAGE NETWORKS |
| FIELD: electrical engineering; power supply.
EFFECT: eliminating equalizing currents which reduce transformer substation reliability when transformers run in parallel. 2 cl, 1 dwg |
| Publishing date: March 23, 2004 |
|
| ELECTRIC CABLE COVERED WITH FOAMED WATER-BARRIER SEMICONDUCTING LAYER |
| FIELD: power transmission or distribution cables for carrying intermediate- or high-voltage currents.
EFFECT: enhanced operating reliability of cable. 29 cl, 1 tbl |
| Publishing date: February 3, 2004 |
|
| PROCEDURE LOCATING CABLE FAULT IN POWER TRANSMISSION AND COMMUNICATION LINE WITH USE OF MARKER'S METHOD AND DEVICE FOR ITS IMPLEMENTATION |
| FIELD: instruments locating points of break and short-circuit in power transmission and communication lines and determining their length.
EFFECT: increased accuracy of location of point of fault, shortened time of search for fault in cables in power transmission and communication lines. 3 cl, 3 dwg |
| Publishing date: December 9, 2003 |
|
| SYSTEM FOR SIGNAL TRANSMISSION OVER POWER TRANSMISSION LINE TO DETECT ICE ON CONDUCTORS |
| FIELD: power engineering; diagnosing ice situation in region using telemechanics and communication channels.
EFFECT: simplified design; improved performance characteristics. 1 cl, 6 dwg |
| Publishing date: September 9, 2003 |
|
| DEVICE WITH OPERATING-TIME DEPENDENT CHARACTERISTIC FOR OVERCURRENT AND SHORT-CIRCUIT PROTECTION OF ELECTRICAL INSTALLATIONS |
| FIELD: electrical engineering; relay protective gear.
EFFECT: enhanced protective efficiency due to enhanced precision of operating time setting for second (overcurrent protection) stage. 2 cl, 1 dwg |
| Publishing date: July 1, 2003 |
|
| AUTOMATICALLY JOINED ELECTRICAL-CONNECTOR PLUG OR SOCKET |
| FIELD: automatic joining and separation of connectors operating under vibrations, linear or impact thrusts.
EFFECT: enhanced reliability. 1 cl, 2 dwg |
| Publishing date: June 24, 2003 |
|
| SPACER FOR OVERHEAD POWER TRANSMISSION LINE CONDUCTORS |
| FIELD: power engineering; overhead power transmission lines.
EFFECT: improved design of spacer. 1 cl, 1 dwg |
| Publishing date: June 24, 2003 |
|
| SOLAR ABSORBER |
| FIELD: solar engineering for heating and hot-water supply systems using solar collectors.
EFFECT: enhanced service life of solar absorber and its operating efficiency using simple procedures. 2 cl, 4 dwg |
| Publishing date: March 4, 2003 |
|
| DEVICE CONVERTING AC VOLTAGE TO CODE |
| FIELD: electric measurement technology.
EFFECT: increased accuracy. 4 cl, 5 dwg |
| Publishing date: February 18, 2003 |
|
| PHOTOLUMINESCENT PHOSPHOR WITH OVERLONG-DURATION AFTERGLOW |
| FIELD: luminophors.
EFFECT: enhanced luminescence characteristics and increased hydrolytic stability. 3 cl, 1 tbl, 6 ex |
| Publishing date: February 4, 2003 |
|
| METHOD FOR REDUCING POWER LOSS IN LOW-VOLTAGE LINES |
| FIELD: power engineering.
EFFECT: reduced power loss at municipal transformer substations; enhanced service life of transformers. 3 dwg |
| Publishing date: April 2, 2002 |
|
| METHOD OF OPERATING THERMAL POWER STATION |
| FIELD: heat power engineering; thermal power stations.
EFFECT: improved economy and reliability. 1 dwg |
| Publishing date: October 10, 2001 |
|
| METHOD OF MOUNTING OF OPTICAL CABLE ON AERIAL LINE AND GEAR FOR ITS IMPLEMENTATION |
| FIELD: communication. EFFECT: simplified procedure of transfer of connection gear from one side of support to another side. 20 cl, 14 dwg |
| Publishing date: September 19, 2001 |
|
| METHOD FOR UNDERGROUND LAYING OF CABLES AND POLYETHYLENE PIPING THROUGH SHORELINE |
| FIELD: electrical engineering; routing cables and polyethylene pipes from land to water and vice versa. |
| Publishing date: April 18, 2001 |
|
| ELECTRIC SOCKET |
| In the newly-proposed design, one of the contact element ends is made as a fork-shaped part. In every cavity of the housing bottom two through holes are made; the two holes are projected on the housing bottom rectangular passages made on the inner side, wherein contact fork tail ends and wire ends can be inserted. |
| Publishing date: December 7, 2000 |
|
| SAFETY DEVICE FOR A DC CIRCUIT |
| The
newly-patented device includes a DC source and a controlling safety unit (CSU).
The first inlet port of the CSU is connected with an outlet port of a meter; the
outlet port of the CSU is linked with a safety device to switch off a regulating
circuit. The second inlet port of the CSU is connected with a power source.
Unlike protection systems available on the market today, the new system is
equipped with a transformer and diodes incorporated between the buses of the
regulating circuit. Diode is connected through cathode with a positive bus of
the regulating circuit and through anode with the first outlet of the
transformer secondary winding. The second outlet of the transformer secondary
winding is connected with a negative bus of the regulating circuit. |
| Publishing date: November 2, 2000 |
|
| ELECTRIC ARC EXCITATION TECHNIQUE AND EQUIPMENT REQUIRED |
| The proposed technology differs in that after the short-circuit current reaches the magnitude of the stable arc current level, a turn-on voltage of the same polarity exceeding the power source voltage is fed across the output of the power source, then the arc gap is fed with a reverse polarity delayed excitation voltage pulse of shorter front duration whose nominal value exceeds the turn-on voltage. |
| Publishing date: October 11, 2000 |
|
| DETERMINATION OF DISTANCE TO POINT OF CONTACT BETWEEN MAIN POWER LINE AND GROUND |
| Under the new technology, the complex impedance Z of the short-circuited contour and the pure resistance Rd of the contour to direct current are additional parameters to be found, while the image impedance X is found by way of subsequently calculating its approximate values Xn and Xn+1 according to the formula:... |
| Publishing date: September 5, 2000 |
|
| METHOD OF FINDING DAMAGED SEGMENT OF CABLE WITH METALLIC COMPONENTS |
| In the proposed method, the impulse receiver accepts the signal reflected from the damaged section, rather than induced impulse. The point of damage is determined reference to position of the monitoring impulse source, when the marks of the monitoring impulse and the signal reflected from the damage point coincide on the receiver display. |
| Publishing date: September 5, 2000 |
|
| A METHOD OF MANUFACTURE OF A TIGHT CABLE CONNECTOR |
| Under the methods applied
nowadays each pair of joining current-conducting parts is connected to a contact
bar. A layer of a high temperature rubber mix had previously been applied to and
vulcanized on the intermediate part of the contact bar... |
| Publishing date: August 7, 2000 |
|
Electrician
