In the post
unbundling scenario, this office is responsible for the following operations:
- Optimum scheduling
and dispatch of electricity within the state.
- Monitoring grid
operations
- Keeping accounts
of quantum of electricity transmitted through state grid.
- Exercising
supervision and control over the intra state transmission system.
- Carrying
out real time operations for grid control and dispatch of electricity within
the state through secure and economic operation ofthe State grid in accordance
with Grid Standards and State Grid Code.
SLDC Projects
SCADA/EMS:
Supervisory
Control and Data Acquisition /Energy Management System (SCADA/EMS) commissioned
by M/s. Power Grid Corporation of India Limited (PGCIL) in Northern Region on
Unified basis is operational at SLDC, Patiala since 2002 and real time status
of the grid is available to the load dispatchers around the clock which further
helps them to take corrective actions for operating the grid in efficient
manner. For better viewing of data at control centre, a large display screen
i.e. Video Projection System (VPS) has been installed. Further to ensure
Uninterrupted Supply to the SCADA/EMS hardware, the provision of Uninterrupted
Power Supply (UPS) of sufficient capacity has been made at the control centre.
Existing SCADA/EMS related hardware and software supplied by M/s Areva has been
upgraded by M/s Siemens System. Provision of backup control centre for main
SLDC control centre has been made under the new system installed by M/s Siemens
Ltd.
Integration of
RTUs with the SCADA/EMS:
At present, RTUs
at 91 Nos. of 220kV & 132kV substations of PSTCL have been provided with
RTUs for remote data acquisition and control from the hierarchy of Control
centres i.e. Area Load Control Centres at Jamsher (Jalandhar) & Lalton
Kalan (Ludhiana) and State Load Control Centre at Ablowal (Patiala) in Punjab.
Besides RTUs, data is being acquired from 7 Nos. SAS (Substation Automation
Systems) at 400kV Substations & IPPs. Recently, tender for the Design,
Supply, Commissioning and Integration of RTUs at 45 Nos. S/stns (i.e. New RTUs
at 35 Nos. S/stns, Retrofitting RTUs at 3 Nos. S/stns and Cannabalizing RTUs at
2 Nos. RTUs) has been awarded vide Tender Enquiry No. SLDC/122/2014. And they
are expected to get commission during FY 2017-18.
Implementation of
Intrastate boundary metering cum Transmission Level Energy Audit Scheme in
PSTCL
Under this
project, 750 No. Availability Based Tariff (ABT) meters and 450 No.
Conventional Energy Meters (CEM) have been procured. ABT meters have been
installed at interface/boundary points of PSTCL with PGCIL, BBMB, HP, PSPCL
& IPPs to calculate the amount of energy transmitted through boundary
points and for calculation of overall transmission losses of PSTCL. Energy
Losses are being calculated from Jul-2017 onwards by energy accounting cell.
Also, CEMs have been installed at 400KV, 220KV and 132KV substations of PSTCL
for energy audit purposes. Further, Centralized Energy Centre (CEC) of PSTCL
has been established at Ablowal, Patiala. The Site Acceptance Test (SAT) of
this project has been started and this project is likely to get commissioned
within few months.
Open Access Open Access office
under Chief Engineer/SLDC, PSTCL, Patiala is a nodal agency in state power
utilities for grant of short term open access to all eligible customers &
consumers of PSPCL.
Open Access is
being granted in discriminatorily by PSTCL to all the eligible open access
customers embedded in Transmission and Distribution system of PSTCL & PSPCL
as per provisions of Electricity Act-2003 and Open Access Regulations issued by
Punjab State Electricity Regulatory Commission (PSERC) and Central Electricity
Regulatory Commission (CERC) from time to time.
Open Access office
also deals with the UI/ Deviation Settlement based energy accounting of Open
Access customers transacting power on short term basis and IPPs selling power
to PSPCL on long term basis. Besides records are maintained for energy
scheduled under short term open access, UI/ Deviation and assessment of open
access charges.
Present Status (as
on 21.10.2017)
Medium Term Open
Access for inter-state wheeling of power has been granted to 1 no. captive
consumer (Total 7 MW)
Short Term Open
Access for wheeling of power has been granted to 1 no. captive consumer for
inter-state wheeling and 2 no. captive consumers for intra-state wheeling of
power from their own Captive Power Plant(s) under bilateral transactions.
(Total 24.9 MW)
Short Term Open
Access for inter-state purchase of power through collective (power exchange)/
bilateral transactions has been granted to 442 no. Large supply consumers of
PSPCL (Powercom) (total 1832 MW approx.), out of which 63 no. active consumers
with a total STOA granted for 553 MW (approx.) have valid consent as on date. These
consumers are purchasing power through power exchange based on their day to day
requirement and market trend.
