Implemented technology
Predicted
balance of payments of annual power consumption for project im-plementation
period of power effective technologies in system of outdoor lighting networks
of Tashkent is presented in the table № 2.
From balance of power consumption we can see that the common annual saving of
electrical energy makes 22 260 GWh including: - from replacement of
lanterns with lamps of different power in number of 112 960 pс. – 12 842,3
GWh.; - from
introduction of automated remote control systems of outdoor lighting (ARCSOL) -
8 561,5 GWh; - from carrying out of power audit, optimization of
allocation and choice of lighting facilities - 856,2 GWh (Additional
saving)
| Table №2 | ||||
| № | Prtd of Outdoor
lighting (kW) |
Rated
annual consumption of electricity at 100 % of operating of outdoor
light-ing (MWh) |
Reduction of electric energy consumption for the reasons independent from SUE "Toshshaharnur" | |
|
Emergency-recovery works, fan disconnecting and others in
net-works of JSC “TashGorPES” (MWh) |
||||
| 1 | 2 | 3 | 4 | 5 |
| 100% | 2% | 1% | ||
| 1 | 18876,73 | 75506,8 | 1510,1 | 755 |
| Continuation of table №2 | |||||||
| Electric Energy saving activi-ties | Losses in net-works of out-door lighting at
cosf=0,92 (MWh) |
Overall an-nual saving of electrical energy for
2008 (MWh) |
Predicted power con-sumption (MWh) |
Additional saving at the expense of audit and
optimization up to 4% (MWh) |
Overall annual saving of electric-ity (MWh) |
||
|
Scheduled outage (MWh) |
Disconnect-ing of out-door lighting dur-ing capital construction and over-hauls (MWh) | Introduction of limitations (MWh) |
|||||
| 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| 5% | 2% | 23.5% | 8.0% | 58.5% | |||
| 3775,3 | 1510,1 | 17770,9 | 6040,5 | 21403,9 | 44144,6 | 856,1 | 22260 |
Besides,
from balance of rated power consumption we can see that re-placement of lamps
with smaller luminous efficacy to lamps with more luminous efficacy will allow
to increase quality and percentage of outdoor lighting from 84% to 95%,
and also increases possibility of electricity saving at the expense of
in-crease in a range of restriction of current consumption from 20,1% to
23,5%.
Introduction of new system represents essentially new, radical solution of the
problem of outdoor lighting management. Basic idea of the project – is full
cancel-lation of existing cascade scheme of management with feeding centers
(FC). At development of technical specifications (TS) of the system,
specialists of SUE "TOSHSHAHARNUR" proceeded from that modernization
of this morally and technically outdated scheme is unpromising, as even
replacement of equipments by more complete will not allow to be beyond of
frames of completely exhausted principles of group management. Instead of it
the new scheme of an off-line con-trol is offered, which fully considers
possibilities of advanced technologies, and also prospects of development of
outdoor lighting control system for the next 10-15 years.
Operation of innovative system of outdoor lighting with software provides high
level qualities, given services at essential simultaneous saving of power,
material and financial resources. High level of the major indicators is reached
at the ex-pense of following advantages of the system:
1. Flexible and efficient outdoor lighting management. Connection and
discon-nection of each FC in off-line mode according to the set individual
schedule of work. According to preliminary estimations of the power savings can
reach 20-25%. 2. Detection of technical losses and plunders.
The scheme of the organization of electricity accounting at the expense of
automatic monitoring system and power consumption management (AMSPCM) which is
an integral part of general system ARCSOL, allows detecting and localiz-ing
operatively possible losses or electricity plunders, tracking schedules of
their appearance within days. According to preliminary estimations, timely
elimination of losses and electricity plunders in outdoor lighting networks can
give power sav-ings more than 15-20%.
3. Remote control of technical condition of separate FCs, and all network
allows timely alerting and liquidating failures in networks of outdoor lighting
that also leads to considerable decrease in general expenses for operation of
outdoor light-ing network.
The system can take root stage by stage, by gradual coverage of all new and new
segments of outdoor lighting network, without any influences on functionality
of that part of system which is already placed in operation.
Power consumption decrease at the expense of introduction of control sys-tem,
increases operation life of all elements of the outdoor lighting network, which
will allow reducing expenses for material resources and technical operation of
networks of outdoor lighting.
