Training Report on control relay panel

2017

AARTECH

SOLONICS

PVT LTD.

SHUBHAM PAL, KALIM UDDIN, UDAY SHANKAR

[

CONTROL & RELAY PANEL

]

Students are required to undergo industrial training for one month as part of the requirement to complete the 4 years course for the bachelor of engineering (Hons.) electrical and electronics engineering. The attachment was held during the semester break of the 6th semester of the study.

MINOR TRAINING REPORT

REPORT ON

Control & Relay Panel

TRAINING FROM

Aartech Solonics Pvt. Ltd.

UNDER THE GUIDANCE OF

Mr. Swanant

Mr. Jitendra Chauhan

SUBMITTED TO- SUBMITTED BY-

Ms. Ritikav Shubham Pal

(HR, Aartech. Uday Shankar

Solonics Pvt Ltd.) Kalim Uddin

PREFACE

Summer training plays a very important role in

Engineering courses; as it gives knowledge of the

things

That we get in our book. We get theoretical

knowledge from our books. So it is important to get

the practical knowledge as well for full command on

our knowledge.

It also clarifies about total working process of a firm.

And in the firm how engineering works to utilize

Acknowledgement

We are very thankful to everyone who all supported

us, for we have completed our training effectively and

moreover on time.

We would like to express my special thanks of

gratitude to our teacher Mr. Swanant & Mr.

Jitendra Chauhan who gave us the golden

opportunity to do this wonderful training on the

topic Control & Relay Panel, which also helped us

in doing a lot of Research and we came to know

about so many new things.

We are doing this training not only for marks but to

also increase my knowledge.

Thanking you

Shubham Pal

Uday Shankar

Kalim Uddin

ABSTRACT

Students are required to undergo industrial training

for one month as part of the requirement to complete

the 4 years course for the bachelor of engineering

(Hons.) electrical and electronics engineering. The

attachment was held during the semester break of the

6

th

_{semester of the study. During the one month}

period of training, students will be supervised and

monitored by one supervisor. The industrial training

was completed at AARTECH SOLONICS PVT LTD.

During the one month of training the working

environment was successfully exposed in order to

gain more experience and knowledge.

COMPANY OVERVIEW

:-Aartech believes in entrepreneurially driven identification

of specialized and selected applied energy applications,

followed by careful application of its R&D, domain

knowledge and skills in an integrated systems solution

approach to meet such growing challenges.

Its business practice is designed around the concept of

System Solution Division (SSDs). It is a reflection of

Aartech’s commitment to strive to provide comprehensive

system solutions, and not just isolated products or services

to its customers. It has several operative System Solution

Divisions (SSDs), BTS 2000 - Microprocessor Based Fast Bus

Transfer Systems (being the flagship SSD at present),

Ultra-Capacitor, Load Checker, Control & Relay Panel naming a

few.

As part of its stated value of being a product,

multi-technologist company, Aartech has an open-door policy for

techno-entrepreneurs in India and abroad to explore the

possibilities of joining Aartech’s creative efforts.

COMPANY PRODUCTS:

-

BTS 2000 :-

BTS 2000 Fast Bus Transfer System is an advanced

microprocessor based Bus Transfer System for Power

Generation Utilities & Continuous Process Industries. By

performing high speed motor bus transfers between two

independent sources of power under prescribed safe system

parameters, the Bus Transfer System provides continuity of

power supply to the critical motors of a plant. This

pre-empts any interruption to the processes running in the

plant in spite of the contingency of the feeding source.

Aartech has more than 25 years of experience in deploying

fast bus transfer system solutions and 300's of installations

to a variety of demanding system requirements.

BTS

2000 is

a

proven

solution

in

thermal

power generation as well as nuclear power generation of

ratings from 25MW captive power unit’s right upto

660MW. It

has

been

selectively

used

in hydro

power generation units as well.

Many

of

the

continuous

process

facilities

Handling are finding rich benefit by use of these systems.

Industrial requirements are generally more stringent and

non-empirical, and the power quality, process sensitivity,

interruption nature, reliability issues and system response

need to be evaluated on a case-to-case basis to offer an

appropriate solution.

KRANKING ULTRACAPACITORS:-

About Kranking

The KranKing range of Ultracapacitors has been specially

designed for engine-cranking applications. They can greatly

reduce the burden on lead-acid batteries during

engine-starting (cranking), enabling a substantial reduction in the

battery-size, and improved battery-life. Unlike batteries

whose

service

life

seldom

exceeds

1000

cycles,

KranKing devices have proven their performance for over

300,000 cycles, between -45°C to 55°C!! Thus, the overall

reliability of the engine-cranking system can be greatly

enhanced.

KranKing Features



Power Cycling Capacity > 300,000 Cycles



Deep Charge - Discharge Handling Capacity



Wide Operating Temperature(-45°C to +55°C)



Lowest Internal ESR in its Class ( only few milli-ohms)



No Maintenance & Long Service Life



Safe - Can Handle Short Circuit / Reverse Polarity

Kranking Applications

Ultracapacitors applications are classified under three

categories:

1. Energy Storage

2. Power Quality

3. Pulse Power

KranKing Ultracapacitors serves under Pulse Power

Application.



Defense vehicles



DG sets



Railway Locomotive



Fleet Application



Off shore Marine application

CONTROL & RELAY PANELS

About Control Relay Panel

A control & relay panel is designed to provide to control

the associated line or transformer through outdoor

switchgear at various 11KV, 33KV and 66KV zonal

substations.

The control & Relay panels are complete in themselves

with all main and auxiliary relays, annunciation relay, fuses,

links, switches, wiring, labels, terminal blocks, earthing

terminals, base frame, foundation bolts, illumination, cable

glands etc.

These panels are used for the control & monitoring of

electrical equipment such as transformers, generators and

circuit breakers. Indoor Control panel for Outdoor VCB

includes IDMT Numerical relay, Master Trip Relay, Trip

circuit Supervision Relay, Indications & meters etc.

These control & Relays panels are available in various

combinations as single circuit or multi-circuit depending

upon the customer requirements.

Features of Control Relay Panel



Complete protection of

transformer or feeder



Alarm & Annunciation

features



Simplex Construction



Multiple Construction Choice

(front door or rear door type)



Also available with Communicable Relays



Multiple scheme configurations in a Single panel



Compact



CPRI tested



Vendor Approved from government Utilities like MPEB –

Jabalpur, Bhopal & Indore

Applications of Control Relay Panel

11KV Switchgear: 11kV switchgear products are used for the

protection of power generation & distribution in electrical

equipments.



Transformer protection



Generator protection



Feeder protection



Capacitor switching

33KV Switchgear: 33kV switchgear products mainly used to

protection of power transmission electrical equipments.



Transformer protection



Feeder protection

66KV Switchgear: 66kV switchgear products mainly used to

protection of power transmission electrical equipments.



Transformer protection

DECLARATION

I hereby declare that this industrial training report is the record

of authentic work carried out by me during the period from 5

June 2017 to 5 July 2017 in Aartech Solonics pvt ltd.

Mandideep under the supervision of my training incharge Mr.

Swanant. The details of training and experience

mentioned in this report describe my involvement in the

field of electrical and electronics engineering. All the

information contains in this report is certain and correct

to the knowledge of mine.

Signature: -

Name: - Shubham pal (0161EX141017)

Uday Shankar (0161EX141019)

Kalim Uddin (0161EX141008)

TABLE OF CONTENTS

:

1. INTRODUCTION 2. PANEL ENCLOSURE

TECHNICAL DESCRIPTION

i. MECHANICAL ASSEMBLY ii. ELECTRICAL ASSEMBLY iii. WIRING

iv. ELECTRONIC ASSEMBLY

3. CERTIFICATION 4. CLASSIFICATION 5. SCHEMES 6. PROCEDURE 7. REFERENCES/BIBLIOGRAPHY 8. APPENDIX 9. CONCLUSION 10. GLOSSARY

INTRODUCTION

Control & Relay Panels facilitate centralized control of the

related controlled equipment in power stations, switching

stations and industrial plant. Top Rank’s design of control

& relay panels are based on the concept of unit assembly

from standard parts.

The panels are bolted together to form a board. This

approach permits replacements, extensions, rearrangement

and addition when necessary.

These panels are used for the control & monitoring of

electrical equipments such as transformers & circuit

breakers. Indoor Control panel for Outdoor VCB includes

IDMT Numerical relay, Master Trip Relay, Trip circuit

Supervision Relay, Indications & meters etc.

These control & Relays panels are available in various

combinations as single circuit or multi-circuit depending

upon the customer requirements

.

PANEL ENCLOSURE

TECHNICAL DESCRIPTION

-

These panels are manufactured with 2-2.5mm of steel sheet with a standard dimensions of 2312mm (H) x 1000(W) x 762(D).

MECHANICAL ASSEMBLY-

a. Mounting Plate. b. Lane plate. c. Panel base. d. Hooks. e. PVC channels.

Electrical assembly

a. MS channel. b. Terminal block. c. Fuse base. d. PVC channel. e. Neutral links.

Wiring.

Electronic assembly.

MOUNTING: -

All equipment on and inside the panels shall be mounted and completely wired to the terminal blocks ready for external connection. The equipment of panel shall be mounted flush.

Equipment shall be mounted such that removal and replacement can be accomplished individually without interrupting of service to adjacent devices and are readily accessible without use of special tools. Terminal marking shall be clearly visible and of permanent nature.

The contractor shall carry out cut out, mounting and wiring of the bought out items which are to be mounted in the panel in accordance with the corresponding equipment manufacturer's drawings.

No equipment shall be mounted on the doors.

All the equipment connections and cabling shall be designed and arranged to minimize the risk of fire and damage.

PAINTING:

-All unfinished surface of the steel panels and frame work shall be sand blasted to remove rust, scale, foreign adhering material or grease.

A suitable rust resisting primer shall be applied on the interior and exterior surfaces of the steel, which shall be followed by of an under coat suitable to serve as base and binder for the finishing coat. The finishing coat on the exterior of the panel & on the interior faces shall be as per following table: -

S. No. Painting

1 a) External Color shade Shade RAL 7032 (Pebble Grey) b) Internal Color shade White

Color c) External Finish Texture Semi Glossy d) Internal Finish Texture Semi Glossy e) Base Frame Color shade Black

2 Type of Painting Powder Coating

3 Thickness of Paint Average of Powder Coating 80-100 microns 4 Phosphating Sheet Steel shall be phosphated in accordance to IS 6005

5 Special Small quantity of paint shall be supplied for minor touchup work required Instruction at site.

MIMIC DIAGRAM: -

Coloured mimic diagram and symbols showing the exact representation of the system shall be provided in the front of control panels.

Colour scheme for mimic diagram.

KV Class C o l o u r Shade Index as per ISS

--- --- ---

400KV Dark Violet 796

220 KV Light orange 557

33 KV Brilliant green 221 11 KV Air Craft blue 108 400/230 V Black 309 Earth White - 110 V Canary yellow -

LED Position Indicators for the position indication of isolators, earth switches and ON/OFF indication for such breaker shall be mounted along the mimic diagram at appropriate location.

AUXILIARY SUPPLY:

-D.C. Supply voltage shall be normally fed from Battery charger and battery connected in parallel which is 220V +/- 10%. In case of

failure of the AC supply to battery charger, DC Supply voltage will be available automatically from lead acid Battery.

The D.C Supply voltage may vary from -10% to + 10%. The D.C. system shall be 2 wire with necessary positive earth fault and negative earth fault annunciation scheme. The ripple content in the D.C. supply from charger will be less than 2%.

AC Auxiliary supply voltage for the C&R panel shall be 230V, 1-phase, 50Hz grounded with +/- 10% voltage variation.

PANEL INTERNAL WIRING:

-All wiring shall be carried out with 1100V grade Single core

standard copper conductor wires with PVC insulation conforming to IS 694 or equivalent International Standard.

The following colour scheme shall be used for the wiring:-

TERMINAL BLOCK: -

All internal wiring to be connected to the external equipment shall terminate an terminal blocks, preferably vertically mounted on the side of each panel. Terminal blocks shall be 1100 V grade and have 10Amp continuous rating, moulded piece, complete with insulated barriers, stud type terminals, washers, nuts and lock nuts, inserts. The stud, washers, nuts, locknuts, inserts shall be tin plated Brass/Brass. Terminal block design shall include markings of terminals and the terminals shall be provided with transparent

plastic, slip on/clip on terminal covers. Markings on the terminal strip shall correspond to wire number and terminal numbers on the wiring diagram.

All studs, nuts, screw etc. shall be threaded according to IS: 7684 or equivalent International Standards.

FUSES AND LINKS: -

H.R.C. Cartridge fuse and link of adequate current and voltage rating shall be provided inside the cubicle in an easily accessible location. The selection of the main and sub circuit fuse ratings shall be such as to ensure selective clearance of sub circuit faults. Fuses shall have operation indicators for indicating blown fuse condition. Fuse carriers and bases shall have imprints of rating, voltage and circuit designation.

INDICATING LAMPS

: -

These lamps shall be of LED type and suitable for being operated on S/S D.C. voltage or AC voltage or P.T. secondary supply as and where applicable. All Lamps shall be interchangeable, panel mounting type with rear terminal connection and shall afford easy replacement from the front of the panel. Lamps shall have translucent lamp covers to diffuse lights and coloured Red, green, Amber, clear white or blue as specified. The lamp cover shall be of screwed type, unbreakable and mounded from heat resisting material. The indicating lamps with resistors shall withstand 120% of rated voltage on a continuous basis.

ANNUNCIATOR: -

It may be 18, 20 or 24 Window annunciator suitable for the visual and audible alarm annunciation shall be provided on the control panel. These shall be micro processor based units using bright LEDs.

Annunciator facia units shall have translucent plastic windows for each alarm point.The annunciation shall be divided into the following categories:

i) Trip annunciation.

ii) Non Trip annunciation.

Each annunciator shall be provided with 'Accept', 'Reset' and 'Test' push buttons, coloured red, yellow and blue respectively.

SEMAPHORE INDICATORS: -

When semaphore indicators are used for equipment positions, they shall be mounted in the mimic, such that the equipment closed position shall complete the continuity of the mimic.

PUSH BUTTON SWITCHES:-

Push button switches, provided where required, shall be of the monetary contact type wired back connected. They shall be semi flush mounted. They shall be provided with integral inscription plates engraved with their functions.

All push buttons shall be with a set of NO/NC contacts as required to fulfill the scheme requirement.

TRIP CIRCUIT SUPERVISION SCHEME:

-Trip circuit supervision scheme shall be such that testing of trip circuit healthiness is possible irrespective of whether the C. B. is in the closed or open position.

The Trip Circuit Healthy LED should glow continuously in CB ‘ON’

Position and on demand in C.B. ‘OFF” position. The rating of dropping resistance in series with Trip Circuit Healthy LED shall be such that the Trip Coil should not get damaged because of continuous current flowing through it.

MASTER TRIP RELAYS:

-The trip relays shall be high speed, hand reset type. -The relay shall have heavy duty contacts suitable for tripping function. Relay shall have minimum 2NO + 2NC contacts.

LOCAL BREAKER BACK UP PROTECTION: -

The protection scheme shall be so designed that if any circuit breaker fails to trip in the event of a fault, then after a short time delay all the adjacent circuit breakers connected in the same bus will be tripped.The relay shall –

a) be triple pole type.

b) have a operating time less than 15millisecond. c) have an resetting time less than 15millisecond.

d)

Trip all the breakers on the particular bus in a One & Half breaker system, when any bus breaker fails to trip in faulty condition. However, when a Tie Breaker fails to open, the LBB relay shall trip the adjacent bus breakers as well as both the breakers at the remote end of the bays

TEST BLOCK: -

Switch Board type, back connected, test blocks with contacts shall be provided with links or other devices for shorting terminals of CT leads before interrupting the normal circuit for injection from external source or for inserting testing instruments in the circuit without causing open circuit of the CT.

The potential testing studs shall preferably be housed in block molding insulation and partition shall be provided to prevent

accidental short circuit across the studs. Test blocks for meters, relays shall be placed in front and rear panel respectively.

HOOTER:-

Hooter is an electronic siren.

SPACE HEATERS: -

Space heater suitable for connection to the single phase AC supply in each panel complete with switches and thermostat located at convenient position shall be provided at the bottom side of the cubicle to prevent condensation of moisture. The watt loss per unit surface temperature of the heater shall be low enough to keep surface temperature well below allowable heat.

The wattage of the heater shall be such as to keep 10 C above average ambient temperature in the rainy season but the temperature shall not under any circumstances damage the insulation of the wiring of the panel.

Capacity 80W

Voltage required 230V AC

THERMOSTAT: -

a device that automatically regulates temperature, or that activates a device when the temperature reaches a certain point.

AMMETER: -

Each circuit one ammeter and associated selector switch shall be provided.

Mounting Flush

Size 48x 96 sq. mm. case Response time 1 Second

Operating temperature Up to 55°C

Dielectric strength 2KV RMS for 1 minute Frequency 50Hz

Operating current 1 A from CT secondary. Type Panel mounting with 31_/

2 Digital Display

AMMETER SELECTOR SWITCH: -

Ammeter Selector switch shall be a four-position (3 way with off) rotary type with R, Y, B and 'OFF' positions marked clearly on 48x48 mm brushed aluminium plate with black handle.

Rated insulation voltage 1100V Rated impulse withstand voltage 6KV Rated operational current 12 A

VOLT METER: -

Mounting Flush

Size 48x 96 sq. mm. case Response time 1 Second

Dielectric strength 2KV RMS for 1 minute Auxiliary supply 110V

Frequency 50Hz

Operating Voltage 110V from PT secondary. Type Panel mounting with 31_/

2 Digital Display

VOLT METER SELECTOR SWITCH: -

Voltmeter Selector switch shall be a four-position (3 way with off) rotary type with RY, YB, BR and 'OFF' positions marked clearly on 48x48 mm brushed aluminium plate with black handle.

Rated insulation voltage 1100V Rated impulse withstand voltage 6KV Rated operational current 12 A

BREAKER CONTROL SWITCH: -

Breaker control Switches are specially designed for remote tripping and closing of circuit breakers, and recommended wherever severe frequent operation are required and to eliminate the possibility of coil burnout with two consecutive closing operations.

LOCAL/REMOTE:-

A Remote/Local control selector switch can often be situated in proximity to the controlled plant [i.e. LOCAL to the equipment] and allow an operator to take control locally and avoid the need to interact or accept remote supervisory commands.

Switching the Selector to REMOTE allows the equipment to be controlled REMOTELY from a SCADA Master Station.

TRI-VECTOR ENERGY METER: -

Trivector meter is a measuring instrument which measures the kW, kVAr, the kVA of a power line. These instruments can measure both power as well as energy. Trivector meters are normally used in substations and to measure the power flowing through the feeders. They are used for billing power drawn by industrial customers. The Trivector enables the simultaneous measurement of different electrical parameters which enables accurate assessment of the power consumed.

MULTI-FUNCTION METER: -

MFM displaying voltage, current, real power (MW), Reactive power (MVAR), Scada communicable.

Aux. supply 230V AC

Size 144×144sqmm.

Type Static

Mounting Flush

Display Customized backlit liquid crystal display

The meters shall have digital display unit. The digits shall be clear and bright. The unit shall have number of digits not less than six (6).

The meter shall be direct reading type, that is, without involving any external multiplying factor.

It shall be possible to programme the meter, at site, to suit the actual CT & PT ratios. However, inadvertent resetting/ changing of the selected CT/PT ratio shall be prevented through suitable

software or hardware interlock.

Feather-touch push buttons shall be provided on the meters for enabling selection of various system parameters to be read. The parameter being displayed shall be identified on the display unit. Normal scroll mode shall also be available, and the parameters to be displayed shall be programmable.

Meters shall have non-volatile memory using EEPROM so as to retain the recorded parameters during power failure/ storage. In case the meter is having built-in self-chargeable type battery back up to support the retention of energy recording during storage/aux. supply failure, the same shall have a life not less than 10 years.

The meter shall be tamper-proof, having suitable locking arrangement. Locking by method of password may also be offered to prevent tampering by un-authorized persons.

DIRECTIONAL OVERCURRENT RELAY: -

Directional overcurrent relaying (67) refers to relaying that can use the phase relationship of voltage and current to determine direction to a fault. There are a variety of concepts by which this task is done. This paper will review the mainstream methods by which 67 type directional decisions are made by protective relays. The paper focuses on how a numeric directional relay uses the phase relationship of sequence components such as positive sequence (V1 vs. I1 ), negative sequence (V2 vs. I2), and zero

sequence (V0 vs. I0) to sense fault direction, but other concepts

such as using quadrature voltage (e.g., VAB vs Ic) are included.

DISTANCE PROTECTION RELAY: -

There is one type of relay which functions depending upon the distance of fault in the line. More specifically, the relay operates depending upon the impedance between the point of fault and the point where relay is installed. These relays are known as distance

relay or impedance relay.

Types of Distance or Impedance Relay

There are mainly two types of distance relay- 1. Definite distance relay.

80DC SUPERVISION RELAY: -

This type of relay is used to supervise the DC supply. The relay coil terminals 1 & 2 are connected to the DC supply, which is to be

monitored. In case, the DC auxiliary supply is available, the relay’s ‘NO’ contact closes and healthy status is indicated through

‘WHITE’ flag. In the absence of the DC auxiliary supply, the same is indicated through ‘RED’ flag.

EARTHING ARRANGEMENTS-

All control and relay panels shall be provided with copper earth bar of a sectional area of not less than 150 mm2run along the bottom of the panels with provisions at each end to be connected to the adjacent panel and can be joint together to form a common bus. Common earthing bus thus formed shall be connected to the station earthing system via copper earthing connection of size not less than 185 mm2. The common earthing of earth bus inside panels will be at two locations to earth grid. Metal cases of instruments and metal bases of relays on the panels shall be

connected to this bar by conductors of a sectional area of not less than 2.5 mm2.

3.

CERTIFICATION:

-

 MPMKVVCL  MPPKVVCL  CSPTCL  CSPDCL  CPRI

 Major Discom’s & Transco of India

4. CLASSIFICATION: -

Designing and manufacturing of Control and Relay panel depend on the requirement of utilities and these can broadly be classified as follows;

- Line Protection

- Transformer Protection - Bus Bar Protection

- Tie Breaker - Bus Coupler - Reactor

5. SCHEMES: -

 66KV transformer protection type Scada or non Scada scheme  66KV line protection type Scada or Non Scada schemes.

 33KV single feeder protection schemes.  11KV capacitor bank protection schemes

PROCEDURE:

-66KV TRANSF0RMER PROTECTION (SCADA OR NON SCADA)

INTERFACING SHEET

S.NO PANEL T.B.

FERULE

ACTION

1 X1:1 J1 DC +VE 2 X1:2 J2 DC –VE 3 X1:3 - SPARE 4 X1:4 H1 AC-PH 5 X1:5 H2 AC-NE 6 X2:1 D11 CT-3 METERING (R-PHASE) 7 X2:2 D31 CT-3 METERING (Y-PHASE) 8 X2:3 D51 CT-3 METERING (B-PHASE) 9 X2:4 D71 CT-3 METERING (NEUTRAL) 10 X2:5 E11 PT-1 METERING (R-PHASE) 11 X2:6 E31 PT-1 METERING (Y-PHASE) 12 X2:7 E51 PT-1 METERING (B-PHASE) 13 X2:8 E71 PT-1 METERING (NEUTRAL) 14 X2:9 C11 CT-2 MAIN PROTECTION R-PHASE 15 X2:10 C31 CT-2 MAIN PROTECTION Y-PHASE 16 X2:11 C51 CT-2 MAIN PROTECTION B-PHASE 17 X2:12 C71 CT-2 MAIN PROTECTION

NEUTRAL 18 X2:13 C15 CT-1 BACKUP PROTECTION RELAY R-PHSASE 19 X2:14 C35 CT-1 BACKUP PROTECTION RELAY Y-PHASE 20 X2:15 C55 CT-1 BACKUP PROTECTION RELAY B-PHASE 21 X2:16 C75 CT-1 BACKUP PROTECTION RELAY NEUTRAL 22 X2:17 - SPARE 23 X2:18 - SPARE

24 X2:19 1E13 PT-2 BACKUP RELAY R-PHASE

25 X2:20 1E33 PT-2 BACKUP RELAY Y-PHASE

26 X2:21 1E53 PT-2 BACKUP RELAY B-PHASE

27 X2:22 1E73 PT-2 BACKUP RALAY NEUTRAL 28 X2:23 - CT-4 SPARE R-PHASE 29 X2:24 - CT-4 SPARE Y-PHASE 30 X2:25 - CT-4 SPARE B-PHASE 31 X2:26 - CT-4 SPARE NEUTRAL 32 X2:27 - PT-3 SPARE R-PHASE 33 X2:28 - PT-3 SPARE Y-PHASE 34 X2:29 - PT-3 SPARE B-PHASE

35 X2:30 - PT-3 SPARE NEUTRAL 36 X3:1 1K1 BREAKER AUX + SUP. &

CLOSING CKT 37 X3:2 1K2 BREAKER AUX - SUP. &

CLOSING CKT

38 X3:5 1K13 REMOTE CLOSE

39 X3:6 1K15 TRIP CKT-1 REMOTE TRIP 40 X3:8 1K19 TRIP CKT-1 SUPERVISION

41 X3:9 2K1 TRIP CKT-2 +SUPPLY

42 X3:10 2K2 TRIP CKT-2 –SUPPLY 43 X3:11 2K3 TRIP CKT-2 REMOTE TRIP 44 X3:13 2K7 TRIP CKT-2 SUPERVISION 45 X3:14 K201 CB SUPERVISION +SUPP. 46 X3:15 K203A CB AIR PRESS. LOW ALARM 47 X3:16 K205A CB SF6 LOCK OUT 48 X3:17 K207A CB SPRING CHAREGE 49 X3:18 L1 INDICATION CKT +SUP. 50 X3:19 L3 BREAKER OPEN 51 X3:20 L5 BREAKER CLOSE 52 X3:21 L7 SPRING CHAREGE 53 X3:22 L9 SMP-1 OPEN 54 X3:23 L11 SMP-1 CLOSE

55 X3:24 L15 FAULT AUTO TRIP

57 X4:2 L17 SMP-2 OPEN 58 X4:3 L19 SMP-2 CLOSE 59 X4:5 L21 SMP-3 OPEN 60 X4:6 L23 SMP-3 CLOSE 61 X4:7 L1 INDICATION +SUPPLY 62 X4:8 L25 SMP-4 OPEN 63 X4:9 L27 SMP-4 CLOSE

EQUIPMENTS USED :

1. SINGLE PHASE RELAY TEST KIT 2. THREE PHASE RELAY TEST KIT 3. MULTIMETER

TEST CONDUCTED AFTER INTERFACING :-

1. CONNECTION TO AUXILLARY (DC)220V 1. X1:1 – >+VE 2. X1:2 –> -VE 22. CONNECTION TO AUXILLARY (AC)-230V 3. X1:3 –> PHASE

4. X1:4 –> NEUTRAL

S.No Test on panel Procedure Result or indication

1 Lamp test & Semaphore test. 1. By making short path between X3:18 to X3:19. 2. By making short path between X3:18 to X3:20. 3. By making short path between X3:18 to X3:21 4. By making short path

GREEN lamp will glow, it Shows breaker open.

RED lamp will glow, it

shows

Breaker close.

Blue lamp will glow, it

shows Spring charge.

Semaphore-1 indication will move to open side.

between X3:18 to X3:22 5. By making short path between X3:18 to X3:23 6. By making short path between X3:18 to X3:23 7. By making short path between X3:18 to X3:24. 8. By making short path between X4:1 to X4:2. 9. By making short path between X4:1 to X4:3. 10. By making short Path Semaphore-2 indication will move to close side.

Amber lamp will glow, it

shows fault auto trip.

Semaphore-2 indication will move to open side.

Semaphore-2 indication will move to close side.

Semaphore-3 indication will move to open side.

Semaphore-3 indication will move to close side.

Semaphore-4 indication will move to open side.

Semaphore-4 indication will move to close side.

between X4:4 to X4:5. 11. By making short Path between X4:4 to X4:6. 12. By making short Path between X4:7 to X4:8. 13. By making short Path between X4:7 to X4:9. 2 DC under voltage test By decreasing DC Input Supply upto 180V

In annunciator, dc under voltage lamp will glow and hooter starts making sound. 3 DC fail test By making DC

supply fail.

Fault led glowDC fail led glowbuzzer sound.

4 AC fail test Make AC supply fail. In annunciator, AC fail lamp will glow and hooter starts making sound.

test

Trip ckt-2 healthy test

between X3:2 to X3:8.

Making short path between X3:10 to X3:13

faulty lamp lightening will off, and by pressing PB-4, L6

(white) will glow.

95A will show healthy. In annunciator, trip ckt-2 faulty lamp lightening will off, and by pressing PB-5, L7

(white) will glow.

95B will show healthy. 7 Metering By using three

phase relay test kit, giving CT, PT to the panel.

All meters start showing reading. i.e. Ammeter, Voltmeter, MVAR, MW, MFM,TVM 8 BCS TEST L/R switch set to remote position. Making short path between X3:2 to X3:8, X3:10 to X3:13. 1. On giving close Command from Switch ( -ve terminal of lamp

BCS gives close command to the lamp, lamp will glow .

connect with X3:2 &

+ve terminal with X3:5) 2. On giving trip Command from Switch ( -ve terminal of lamp connect with X3:2 &

+ve terminal with X3:6 for trip ckt-1 and X3:ckt-1ckt-1for trip ckt-2)

BCS gives open command to the lamp, lamp will glow .

9 CB Supervision Test On making short path between X3:14 to X3:15 On making short path between X3:14 to X3:16 On making short path between X3:14 to X3:17 In annunciator, CB Air

Pressure Low Alarm lamp will

glow and hooter starts making sound.

In annunciator, CB SF6 LOCK

OUT lamp will glow and

hooter starts making sound. In annunciator, CB Spring

Charge lamp will glow and

hooter starts making sound. 10 Main protection rel.

earth fault test

On giving current by using CT wire in b/w X2:9 to X2:12(

Hooter start making sound, In annunciator, distance

7.

REFERENCES/BIBLIOGRAPHY- www.aartechsolonics.com  www.mahadiscom.com  www.wbsetcl.in  www.selectswitches.net  www.electrical4u.com  www.stelmac.com Over current test.

phase to neutral)

On giving current b/w phase to phase by using CT

(X2:9 to X2:10)

will glow, MTR & LBB will trip.

Hooter start making sound, In annunciator, distance

protection relay operate lamp will glow, MTR & LBB will trip. 11 Backup protection

relay earth fault test

Over current test

On giving current b/w phase to neutral by using CT On giving current b/w phase to phase by using CT

Hooter start making sound, In annunciator, directional protection relay operate lamp will glow, MTR & LBB will trip. Hooter start making sound, In annunciator, directional protection relay operate lamp will glow, MTR & LBB will trip.

8. APPENDIX-

DAY

DATE

TASK PERFORMED

1.

5

th

_{July 2017}

1. Introduction and interaction

with the heads of SSD’s

(system solution division).

2. Got to know about the

Company Profile and how it

works.

2.

6

th

_{July 2017}

_{1. Studied about BUCK AND}

BOOST CONVERTOR.

3.

7

th

_{July 2017}

1. Introduced to company’s

objective and also to

various products as

follows:



BTS (Bus

transfer

system)



CRP(Control and

relay panel)



Ultracapacitors

4.

8

th

_{July 2017}

1.

Visited company’s

shop floor and got

familiar with different

Machineries and work

5.

9

th

_{July 2017}

SUNDAY

6.

10

th

_{July 2017}

1. Got introduced to company’s

major product “bus transfer

system” also studied basic

concept of BTS.

2. Got overview of 2 breaker

BTS along with its modes,

transfer directions and

initiations.

7.

11

st

_{July 2017}

1. Read IEEE papers on CRP

2. Learned about the

importance of CRP in

substations.

8.

12

th

_{July 2017}

_{1. Studied about}

equipments used in

panels.

2. Learned panel scheme.

9.

13

th

_{July 2017}

_{List out all machineries used in}

Aartech.

10.

14

th

_{July 2017}

_{Get to know about basics of Ultra}

capacitors, its usage and

advantages.

11.

15

th

_{July 2017}

_{Studied about Ultra capacitors its}

basic concept and its applications.

12.

16

th

_{July 2017}

13.

17

th

_{July 2017}

_{1. Learn testing process of}

CRP.

2. Attended CRP testing.

14.

18

th

_{July 2017}

_{See how wiring is done in panel.}

15.

19

th

_{July 2017}

_{Mounting of instrument on}

panels.

16.

20

th

_{July 2017}

_{See CNC, sharing, & bending}

machine how they work.

17.

21

st

_{July 2017}

_{Start doing testing on 66KV Line}

CRP Panel

18.

22

nd

_{July 2017}

_{Testing perform on 66KV line}

Scada CRP Panel

19.

23

rd

_{July 2017}

_SUNDAY

20.

24

th

_{July 2017}

_{Testing perform on 66KV Line}

CRP scada Panel

21.

25

th

_{July 2017}

_{Testing perform on 66KV Line non}

scada CRP Panel

22.

26

th

_{July 2017}

_{Testing perform on 66KV Line non}

scada CRP Panel

23.

27

th

_{July 2017}

_{Testing perform on 66KV Line non}

scada CRP Panel

24.

28

th

_{July 2017}

_{Start doing testing on 66KV}

transformer Scada CRP Panel

25.

29

th

_{July 2017}

_{Testing perform on 66KV}

transformer CRP scada Panel

26.

30

27.

31

th

_{July 2017}

_{Testing perform on 66KV}

transformer CRP scada Panel

28.

1

th

_{August 2017 Testing perform on 66KV}

transformer CRP non scada Panel

29.

2

nd

_{August 2017 Testing perform on 66KV}

transformer CRP non scada Panel

30.

3

rd

_{August 2017}

_{Testing perform on 33KV}

single feeder CRP Panel

31.

4

th

_{August 2017}

_{Testing perform on 11KV}

capacitor bank CRP Panel

32.

5

th

_{August 2017}

_{Testing perform on 66kv}

transformer non scada CRP

panel

9

.

CONCLUSION-

1. Made for protection of switchgear 2. Actual analysis.

3. Fast sensing fault.

4. These panels are used for the control & monitoring of

electrical Equipments such as transformers, generators and circuit breakers

.

10.

GLOSSARY-Adjustable Alarm Level – A setting on a

protection relay at which an LED or an output contact operates to activate a visual or audible alarm.

Adjustable Time Delay – A setting on a

protection relay that determines the time

between the fault detection and relay operation.

Alarm Relay Contact – The output of the relay

that acts as a switch and is connected to a visual or audible alarm.

Analog Output– A 0–1 mA, 4–20 mA or 0–5 Vdc

signal from a protection relay used to pass information to a device or controller.

Current Transformer (CT) – A transformer that

produces a current in its secondary circuit in a

known proportion to current in its primary circuit.

CT Loop – The electrical circuit between a current

transformer and a protection relay or monitoring device.

CT Loop Monitoring– Continuous check of CT

loop continuity to verify connection.

current transformer (CT) cannot maintain a

secondary current proportional to a large primary current.

CT Local Saturation – Poorly installed phase

conductors and large currents can cause an output from a zero-sequence (ground-fault) CT even

though there is no fault.

Current-Based Protection – Protection

parameters (trip-levels/data collection etc.) derived from current levels in a circuit.

Current-Trip Setting– Selectable level of current

at which a relay will operate.

EFCT (Earth Fault Current Transformer) –A

current transformer engineered to accurately detect low level ground-fault current. The words earth fault and ground fault are used interchangeably.

Feeder– All circuit conductors between the service

equipment, the source of a separately derived

system, or other power supply source and the final branch-circuit over current device.

Motor Lockout– A condition where for safety

motor.

Motor Protection – Overload protection designed

to protect the windings of a motor from high

current levels. Modern motor protection relays add many additional features, such as metering, data logging and communications.

N.C. Contact (Normally Closed Contact) – Relay

contact that is closed when the relay is not energized.

N.O. Contact (Normally Open Contact) – Relay

contact that is open when the relay is not energized.

Relay – An electrical switch that opens and closes a

contact (or contacts) under the control of another circuit.

Relay Operating Mode – Fail-safe or non-fail-safe

methods of operation used for under voltage or Shunt trip breakers.