Optical Current Transformer is an alternative to the existing conventional current transformers, providing an advanced measurement solution for both metering and protection applications, based on a cutting-edge patented optical sensing technology.
These slides provide an elementary description of Power Electronics and its application domains. It also shows the different power devices and converters.
Presentation on Over-/under-voltage protection of electrical applianceNishant Kumar
Sudden fluctuation in supply is a very big problem in industries and domestic applications. It causes a major loss for industries, offices and homes.
This project gives a low cost and powerful solution for this problem. This Circuit protects refrigerators ,ACs, Microwave ovens as well as other appliances from over and under voltage fluctuations.
Introduction
Power Quality Problems
Power Quality Measurement Devices
Power Quality Terminology
Power Quality Standards
Unbundled Power Quality Services
Power Quality Monitoring
Benefits of Power Quality
Conclusion
References
Three Phase Fault Analysis With Auto Reset On Temporary Fault And Permanent TripEdgefxkits & Solutions
This PPT explains about Three phase fault analysis. This is achieved by using star to delta conversions.
Edgefxkits.com has a wide range of electronic projects ideas that are primarily helpful for ECE, EEE and EIE students and the ideas can be applied for real life purposes as well.
http://www.edgefxkits.com/
Visit our page to get more ideas on popular electronic projects developed by professionals.
Edgefx provides free verified electronic projects kits around the world with abstracts, circuit diagrams, and free electronic software. We provide guidance manual for Do It Yourself Kits (DIY) with the modules at best price along with free shipping.
Implementation of Cascaded H-bridge MULTI-LEVEL INVERTEREditor IJMTER
The classical two level inverter produce output with levels either Vdc or -Vdc. The output
voltage waveform of ideal inverter should be sinusoidal but the waveform of conventional inverters
is non-sinusoidal and contains certain harmonics. Large capacitor is normally connected across the
DC voltage source and such a capacitor is costly and demands space. In order to overcome these
drawbacks Multi level inverters are introduced. The great advantage of this kind of inverter is the
minimum harmonic distortion obtained. Power electronics is the applications of power
semiconductor devices for the control and conversion of electric power such that these devices
operate as switches. An inverter is an electrical device that converts DC voltage to AC voltage; the
resulting AC can be at any required frequency. Multi-level inverters are nothing but the modification
of basic bridge inverters [1]. The multilevel inverter collectively converts the several levels of dc
voltage to a desired ac voltage. The unique structure of multilevel inverters allows them to reach
nearer to sinusoidal i.e., with low harmonics. In this project the work is done on five & nine level
multilevel inverter but the multilevel can be done up to any level and how many levels we increase
that much precise sinusoidal supply we can get i.e., we can reduce that many harmonics from the
supply. Simulation work is done using the MATLAB software
Introduction to reactive power control in electrical powerDr.Raja R
Introduction to reactive power control in electrical power
Reactive power in transmission line :
Reactive power control
Reactive power and its importance
Apparent Power
Reactive Power
Apparent Power
Reactive Power Formula
Optical Current Transformer is an alternative to the existing conventional current transformers, providing an advanced measurement solution for both metering and protection applications, based on a cutting-edge patented optical sensing technology.
These slides provide an elementary description of Power Electronics and its application domains. It also shows the different power devices and converters.
Presentation on Over-/under-voltage protection of electrical applianceNishant Kumar
Sudden fluctuation in supply is a very big problem in industries and domestic applications. It causes a major loss for industries, offices and homes.
This project gives a low cost and powerful solution for this problem. This Circuit protects refrigerators ,ACs, Microwave ovens as well as other appliances from over and under voltage fluctuations.
Introduction
Power Quality Problems
Power Quality Measurement Devices
Power Quality Terminology
Power Quality Standards
Unbundled Power Quality Services
Power Quality Monitoring
Benefits of Power Quality
Conclusion
References
Three Phase Fault Analysis With Auto Reset On Temporary Fault And Permanent TripEdgefxkits & Solutions
This PPT explains about Three phase fault analysis. This is achieved by using star to delta conversions.
Edgefxkits.com has a wide range of electronic projects ideas that are primarily helpful for ECE, EEE and EIE students and the ideas can be applied for real life purposes as well.
http://www.edgefxkits.com/
Visit our page to get more ideas on popular electronic projects developed by professionals.
Edgefx provides free verified electronic projects kits around the world with abstracts, circuit diagrams, and free electronic software. We provide guidance manual for Do It Yourself Kits (DIY) with the modules at best price along with free shipping.
Implementation of Cascaded H-bridge MULTI-LEVEL INVERTEREditor IJMTER
The classical two level inverter produce output with levels either Vdc or -Vdc. The output
voltage waveform of ideal inverter should be sinusoidal but the waveform of conventional inverters
is non-sinusoidal and contains certain harmonics. Large capacitor is normally connected across the
DC voltage source and such a capacitor is costly and demands space. In order to overcome these
drawbacks Multi level inverters are introduced. The great advantage of this kind of inverter is the
minimum harmonic distortion obtained. Power electronics is the applications of power
semiconductor devices for the control and conversion of electric power such that these devices
operate as switches. An inverter is an electrical device that converts DC voltage to AC voltage; the
resulting AC can be at any required frequency. Multi-level inverters are nothing but the modification
of basic bridge inverters [1]. The multilevel inverter collectively converts the several levels of dc
voltage to a desired ac voltage. The unique structure of multilevel inverters allows them to reach
nearer to sinusoidal i.e., with low harmonics. In this project the work is done on five & nine level
multilevel inverter but the multilevel can be done up to any level and how many levels we increase
that much precise sinusoidal supply we can get i.e., we can reduce that many harmonics from the
supply. Simulation work is done using the MATLAB software
Introduction to reactive power control in electrical powerDr.Raja R
Introduction to reactive power control in electrical power
Reactive power in transmission line :
Reactive power control
Reactive power and its importance
Apparent Power
Reactive Power
Apparent Power
Reactive Power Formula
PPT ON 220KV Grid sub-station at Gandhi nagar, Jagatpura, Jaipur
It's very easy ppt for electrical engineering & EC engineering student for training of gss.
you can see my ppt on Slidshare...
Training from 220kv GSS Sanganer, which is located on Muhana Road, JaipurR-One Power
The technology all about GSS System and their operating system.
In the presentation all about the GSS and their instrument which has used in GSS for operation and controlling the whole system.
I hope this presentation helpfull to all those students, who had their training from Sanganer 220kv GSS.
Testing and Condition Monitoring of Substation EquipmentsSumeet Ratnawat
Testing and condition monitoring of substation equipments,Transformer specifications,Monitoring of Transformer,On-load Tap changer,Overhauling,Tan delta and capacitance,Thermal imaging,Sweep frequency response analysis,Oil analysis of Switchgear elements containing oil,tests on insulating oil,Breaker monitoring,Condition monitoring of CT,Condition monitoring of CVT,Surge Arresters,Condition monitoring of relays.
3. Rajasthan Rajya Vidyut Prasaran Nigam
Limited (RRVPNL)
A company under the Companies Act of1956
Established on 19 July, 2000 by Govt. of
Rajasthan under the provisions of the
Rajasthan Power Sector Reforms Act, 1999 as
the successor company of RSEB.
An ISO 9001:2000 Certified Company
Registered Office at Vidyut Bhawan, Jyoti
nagar Jaipur.
4. Duties & Responsibilities of RRVPNL
Transmission of
bulk power from Intra state
generating transmission of
stations to inter- electricity
phase point of
DISCOMS
Planning and co-
ordination
Complying with the relating to intra-
directions of RLDC state
and SLDC for its transmission
operation
6. 220 KV Sanganer
Located at a distance of 11 KM from
MNIT
It’s a transmission substation
Initially was 132 KV GSS
Later upgraded to 220KV in the year
1991
Installed transmission capacity of 312.50
MVA (7 tranformers)
Transmission Loss is about 23% in Raj.
7. Control & Operation of GSS
Works under the directions of RLDC and
SLDC for load dispatch
Load dispatch on the basis of the “Hourly
GSS schedule”
Permission from LDC for line or
Transformer shutdown.
Work in synchronization with DISCOMS
for scheduled maintenance.
8.
9. Incoming Feeders
One feeder of 220kv from
KTPS.
One feeder of 220kv from
400kv GSS Heerapura.
One feeder of 220kv from 220
KV GSS Heerapura
One feeder of 132kv from
220/132kv GSS Heearapura .
11. Ratings of the instrument at the
Incoming Feeder
Instrument Rating
Lightning arrester 198KV
CVT 245KV, 200VA
CT 800-400-200/1A, 5C,
20KA/1Sec.
SF6 Circuit Breaker 245KV, 40KA/3Sec
Wave Trap NA
Line Isolator 800A
12. SF6 CB Ratings
Voltage 245KV
Normal Current 2000A
Lightning impulse
withstand voltage 1050 KV
Short circuit breaking current 40 KA
Short circuit breaking duration 3 sec
Gas Pressure SF6 (20 degree) 7 bar
Air Pressure 20 bar
Line Charging breaking current 125 A
16. Ratings of Equipments at 132 KV
switchyard
EQUIPMENT RATING
MAIN BUS-II CVT 220KV//3/110V,200VA
ISO. MAIN BUS-II CVT 800A,245KV
BUS ISOLATER 145 KV,800A
C.B. 1250A,145KV
C.T. 400-200-100/5A,3C
WT NA
It has total of 13 bays with 10 SF6 type of CB & 3 Air
Blast CB’s
20. Rating of Tranformers at 33 KV and
11KV switchyards
Voltage Power No. of
Rating Rating Transformer
132/33KV 40/50MVA 1
132/33KV 20/25MVA 2
132/11KV 10/12.5MVA 1
33/0.4kv 250KVA 1
29. Fault Operation
Relay trips as fault is detected in the system
Breaker operates
Alarm at control room blows up.
Alarm is manually reset
Breaker is made off after 5 min
If the fault persists , Isolator is removed
Fault if at switchyard is checked
If no local fault present, then fault feeder is
contacted.
Supply is resumed after fault removal
30. Maintenance of GSS
DAILY JOBS
Visual checking for any hot spot
Checking of air and gas leakage from the breaker
Checking of air and gas pressure of breaker
Checking of oil level from CT and CVT
31. Maintenance of GSS
MONTHLY JOB
Thermo vision scanning of conductor joints
and attending to the hot spot available
Breaker operation checking from local and
remote
Isolators operation from remote and local.
Measurement of specific gravity and voltage
of 220 V D. C Battery cells.
32. Transformer Maintenance
Permission from SLDC
Switching Load to other
Tranformer
CB connected is operated
Isolators are operated
Earthing is provided to remove
the residual charge due to
induction.
33. Level of Members
committee
Subdivision level AEN, ARO, JEN
Division level XEN, AEN (Concerned)
Assist Account officer
Circle Level SE, XEN Accounts Officer
Vig. / Audit Officer/ XEN(M&P)
Chief Engineer CE, SE, Sr. AO, SE (Comml.)
level Vig/Audit Officer/SE(M&P)
Corporate Level CMD, Director Finance,CE
(Comm.),
CE (O&M) JPr, Incharge Legal
Section