Tamil Nadu

AOC

Goods

Electronics Equipment

Power Electronics Lab Equipments

Directorate of Technical Education

Principal, Central Polytechnic College, Tharamani | Chennai, Tamil Nadu

Amount: Refer DocsCloses: 10 Oct 2025Closed

Timeline

Published22 Sept 2025
Closed10 Oct 2025
Technical Evaluation9 Dec 2025
Awarded18 Feb 2026

Bids

Item Wise

4 Bids18 Feb 2026

#	Company	Amount	Rank	Status
1	SUN TECH INSTRUMENTS L1₹2.5 LAccepted-AOC	₹2.5 L	L1	Accepted-AOC LOWEST QUOTED
2	SENTHUR ENGINEERINGS L2₹2.6 L+₹3,894 (1.55%)Rejected-Finance	₹2.6 L+₹3,894 (1.55%)	L2	Rejected-Finance Highest quoted
3	EMSYS TECHNOLOGIES L3₹2.6 L+₹4,484 (1.78%)Rejected-Finance COIMBATORE \| KRISHNAGIRI \| TAMIL NADU \| 635106	₹2.6 L+₹4,484 (1.78%)	L3	Rejected-Finance Highest quoted
4	BHARATHI AGENCY L4₹2.6 L+₹10,148 (4.03%)Rejected-Finance 73C 14 PALLIKUDATHAN STREET METTU STREET KANCHEEPURAM TAMIL NADU 631501 \| KANCHIPURAM \| TAMIL NADU \| 631501	₹2.6 L+₹10,148 (4.03%)	L4	Rejected-Finance Highest quoted

BoQ Comparative

Line Items (8)

Sl No	Description	Qty	Unit	SENTHUR ENGINEERINGS L2	SUN TECH INSTRUMENTS L1	BHARATHI AGENCY L4	EMSYS TECHNOLOGIES L3
1.00Power elctronics lab equipments
1.01	Line synchronized Ramp trigger circuit using UJT with AC Load to measure firing angles Kit UJT Relaxation Oscillator Circuit, Provision to add DC Pedestal Voltage to the Capacitor in the Circuit, Triggering Circuit fo r2SCRs using Pulse Transformer, Measure the Phase angle of Load, 24V Lamp AC Load using 2SCRs, Builtin power supply	2	Nos	2,646 ₹14,700	2,592 ₹14,400 Lowest	2,700 ₹15,000	2,664 ₹14,800
1.02	SCR commutation circuit Kit " Provision to charge the capacitance which will be used for voltage commutation, Built in Power supplies , Class A,B Commutation Circuits "	2	Nos	3,312 ₹18,400	3,240 ₹18,000 Lowest	3,420 ₹19,000	3,330 ₹18,500
1.03	Single phase to single phase Cyclo converter Kit "Cyclo converter with divide by 2 supply frequency and divide by 3 frequency, +ve and –ve polarity Zero Crossing Detectors using Optocouplers, Decade counters to generate required control signals, Isolated 4nos. of DC Power Supplies to trigger the SCRs, Triggering circuits to trigger the Power SCRs, Power Circuit using Center tapped Transformer, Power Circuit using 4SCRs and12V-0-12V Power Transformer and resistive load, Built in power supply "	2	Nos	3,510 ₹19,500	3,402 ₹18,900 Lowest	3,564 ₹19,800	3,474 ₹19,300
1.04	PWM based step down DC Chopper using MOSFET/IGBT Kit "PWM IC controller-based Step down Chopper, Output voltage Vs dutycycle, Load characteristics without feedback, Load characteristics with feedback, Output voltage Vs Input voltage with feedback, Built in power supply "	2	Nos	3,510 ₹19,500	3,402 ₹18,900 Lowest	3,564 ₹19,800	3,474 ₹19,300
1.05	Single phase Single pulse / Sinusoidal PWM inverter using MOSFET/IGBT KitSinglePulse 50 Hz Clock generation, Variable duty cycle generation on both half Cycles, H Bridge Power Circuit using 4nos. Of MOSFETs, 4nos. Of Individual Power Supply for Gate Trigger Circuit, Built in power supply	2	Nos	4,914 ₹27,300	4,860 ₹27,000 Lowest	4,950 ₹27,500	4,932 ₹27,400
1.06	ON / OFF control of Lamp using solid state Relay Kit "Input switch to Control the lamp ON/OFF using solid state relay, One SSR Module to test with lamp load, Builtin Power Supplies "	2	Nos	3,438 ₹19,100	3,402 ₹18,900 Lowest	3,510 ₹19,500	3,474 ₹19,300
1.07	Speed Control of AC Motor using VFD drive "Adjustable V/F Curve and Vector control, Keypad and External Control of AC Motor, Builtin Modbus (RS-485) PC communication ,Suitable for 2HP motor "	2	Nos	14,724 ₹81,800	14,580 ₹81,000 Lowest	15,084 ₹83,800	14,760 ₹82,000
1.08	Lamp dimmer circuit using TRIAC Kit "Variable AC Power Circuit using TRIAC, DIAC circuit to trigger theTRIAC in both half cycles, Provision to vary the charging time of capacitor, (changing the phase angle also)for the DIAC "	2	Nos	2,934 ₹16,300	2,916 ₹16,200 Lowest	3,150 ₹17,500	2,970 ₹16,500

Tender Value

Refer Docs

EMD Value

₹2,100

Closing Date

10 Oct 2025, 3:00 pmClosed

Tender Inviting Organisation

Name

The Principal,CPT,Tharamani

Address

The Principal,CPT,Tharamani

Work Description

Power Electronics Lab Equipments

Tender Information

Tender ID

2025_DoTE_607535_1

Reference Number

3975/B4/2025

Tender Type

Limited

Product Category

Electronics Equipment

Form of Contract

Item Rate

Period of Work

15 days

Location

Principal, Central Polytechnic College, Tharamani

Source Website

Subscribe to view

Eligibility / Pre-Qualification

Please refer Tender documents.

Documents Required

2 documents required · 2 mandatory

Fee/PreQual/Technical

RequiredNIT (.pdf)

Finance

RequiredBOQ (.xls)

Fee & Financial Details

Tender Fee Amount

₹0

EMD Fee Amount

₹2,100

EMD Fee Exemption Allowed

Yes

Important Dates

Last Activity

18 Feb 2026

Published

22 Sept 2025

Bid Opening

11 Oct 2025

Download Starts

22 Sept 2025

Download Ends

10 Oct 2025

Submission Starts

22 Sept 2025

Stage Documents

Stage Summary Snapshot

stage.html

html • 0.05 MB

Technical Bid Opening

tech_bid_open.pdf

PDF

Technical Evaluation

tech_eval.pdf

PDF

Financial Bid Opening

fin_bid_open.pdf

PDF

boq_comp_chart.xlsx

xlsx

Financial Evaluation

fin_eval.pdf

PDF

Award of Contract

aoc.pdf

PDF

Documents

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Tender Page Snapshot

details.html

html • 0.03 MB

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Company

SUN TECH INSTRUMENTS

L1₹2.5 LAccepted-AOC

SENTHUR ENGINEERINGS

L2₹2.6 L+₹3,894 (1.55%)Rejected-Finance

EMSYS TECHNOLOGIES

L3₹2.6 L+₹4,484 (1.78%)Rejected-Finance

COIMBATORE | KRISHNAGIRI | TAMIL NADU | 635106

BHARATHI AGENCY

L4₹2.6 L+₹10,148 (4.03%)Rejected-Finance

73C 14 PALLIKUDATHAN STREET METTU STREET KANCHEEPURAM TAMIL NADU 631501 | KANCHIPURAM | TAMIL NADU | 631501

Sl No	Description	Qty	Unit	SENTHUR ENGINEERINGS L2	SUN TECH INSTRUMENTS L1	BHARATHI AGENCY L4	EMSYS TECHNOLOGIES L3
1.00Power elctronics lab equipments
1.01	Line synchronized Ramp trigger circuit using UJT with AC Load to measure firing angles Kit UJT Relaxation Oscillator Circuit, Provision to add DC Pedestal Voltage to the Capacitor in the Circuit, Triggering Circuit fo r2SCRs using Pulse Transformer, Measure the Phase angle of Load, 24V Lamp AC Load using 2SCRs, Builtin power supply	2	Nos	2,646 ₹14,700	2,592 ₹14,400 Lowest	2,700 ₹15,000	2,664 ₹14,800
1.02	SCR commutation circuit Kit " Provision to charge the capacitance which will be used for voltage commutation, Built in Power supplies , Class A,B Commutation Circuits "	2	Nos	3,312 ₹18,400	3,240 ₹18,000 Lowest	3,420 ₹19,000	3,330 ₹18,500
1.03	Single phase to single phase Cyclo converter Kit "Cyclo converter with divide by 2 supply frequency and divide by 3 frequency, +ve and –ve polarity Zero Crossing Detectors using Optocouplers, Decade counters to generate required control signals, Isolated 4nos. of DC Power Supplies to trigger the SCRs, Triggering circuits to trigger the Power SCRs, Power Circuit using Center tapped Transformer, Power Circuit using 4SCRs and12V-0-12V Power Transformer and resistive load, Built in power supply "	2	Nos	3,510 ₹19,500	3,402 ₹18,900 Lowest	3,564 ₹19,800	3,474 ₹19,300
1.04	PWM based step down DC Chopper using MOSFET/IGBT Kit "PWM IC controller-based Step down Chopper, Output voltage Vs dutycycle, Load characteristics without feedback, Load characteristics with feedback, Output voltage Vs Input voltage with feedback, Built in power supply "	2	Nos	3,510 ₹19,500	3,402 ₹18,900 Lowest	3,564 ₹19,800	3,474 ₹19,300
1.05	Single phase Single pulse / Sinusoidal PWM inverter using MOSFET/IGBT KitSinglePulse 50 Hz Clock generation, Variable duty cycle generation on both half Cycles, H Bridge Power Circuit using 4nos. Of MOSFETs, 4nos. Of Individual Power Supply for Gate Trigger Circuit, Built in power supply	2	Nos	4,914 ₹27,300	4,860 ₹27,000 Lowest	4,950 ₹27,500	4,932 ₹27,400
1.06	ON / OFF control of Lamp using solid state Relay Kit "Input switch to Control the lamp ON/OFF using solid state relay, One SSR Module to test with lamp load, Builtin Power Supplies "	2	Nos	3,438 ₹19,100	3,402 ₹18,900 Lowest	3,510 ₹19,500	3,474 ₹19,300
1.07	Speed Control of AC Motor using VFD drive "Adjustable V/F Curve and Vector control, Keypad and External Control of AC Motor, Builtin Modbus (RS-485) PC communication ,Suitable for 2HP motor "	2	Nos	14,724 ₹81,800	14,580 ₹81,000 Lowest	15,084 ₹83,800	14,760 ₹82,000
1.08	Lamp dimmer circuit using TRIAC Kit "Variable AC Power Circuit using TRIAC, DIAC circuit to trigger theTRIAC in both half cycles, Provision to vary the charging time of capacitor, (changing the phase angle also)for the DIAC "	2	Nos	2,934 ₹16,300	2,916 ₹16,200 Lowest	3,150 ₹17,500	2,970 ₹16,500

Sl No

Description

Qty

Unit

SENTHUR ENGINEERINGS

SUN TECH INSTRUMENTS

BHARATHI AGENCY

EMSYS TECHNOLOGIES

1.00Power elctronics lab equipments

1.01

Line synchronized Ramp trigger circuit using UJT with AC Load to measure firing angles Kit UJT Relaxation Oscillator Circuit, Provision to add DC Pedestal Voltage to the Capacitor in the Circuit, Triggering Circuit fo r2SCRs using Pulse Transformer, Measure the Phase angle of Load, 24V Lamp AC Load using 2SCRs, Builtin power supply

Nos

2,646

₹14,700

2,592

₹14,400

Lowest

2,700

₹15,000

2,664

₹14,800

1.02

SCR commutation circuit Kit " Provision to charge the capacitance which will be used for voltage commutation, Built in Power supplies , Class A,B Commutation Circuits "

Nos

3,312

₹18,400

3,240

₹18,000

Lowest

3,420

₹19,000

3,330

₹18,500

1.03

Single phase to single phase Cyclo converter Kit "Cyclo converter with divide by 2 supply frequency and divide by 3 frequency, +ve and –ve polarity Zero Crossing Detectors using Optocouplers, Decade counters to generate required control signals, Isolated 4nos. of DC Power Supplies to trigger the SCRs, Triggering circuits to trigger the Power SCRs, Power Circuit using Center tapped Transformer, Power Circuit using 4SCRs and12V-0-12V Power Transformer and resistive load, Built in power supply "

Nos

3,510

₹19,500

3,402

₹18,900

Lowest

3,564

₹19,800

3,474

₹19,300

1.04

PWM based step down DC Chopper using MOSFET/IGBT Kit "PWM IC controller-based Step down Chopper, Output voltage Vs dutycycle, Load characteristics without feedback, Load characteristics with feedback, Output voltage Vs Input voltage with feedback, Built in power supply "

Nos

3,510

₹19,500

3,402

₹18,900

Lowest

3,564

₹19,800

3,474

₹19,300

1.05

Single phase Single pulse / Sinusoidal PWM inverter using MOSFET/IGBT KitSinglePulse 50 Hz Clock generation, Variable duty cycle generation on both half Cycles, H Bridge Power Circuit using 4nos. Of MOSFETs, 4nos. Of Individual Power Supply for Gate Trigger Circuit, Built in power supply

Nos

4,914

₹27,300

4,860

₹27,000

Lowest

4,950

₹27,500

4,932

₹27,400

1.06

ON / OFF control of Lamp using solid state Relay Kit "Input switch to Control the lamp ON/OFF using solid state relay, One SSR Module to test with lamp load, Builtin Power Supplies "

Nos

3,438

₹19,100

3,402

₹18,900

Lowest

3,510

₹19,500

3,474

₹19,300

1.07

Speed Control of AC Motor using VFD drive "Adjustable V/F Curve and Vector control, Keypad and External Control of AC Motor, Builtin Modbus (RS-485) PC communication ,Suitable for 2HP motor "

Nos

14,724

₹81,800

14,580

₹81,000

Lowest

15,084

₹83,800

14,760

₹82,000

1.08

Lamp dimmer circuit using TRIAC Kit "Variable AC Power Circuit using TRIAC, DIAC circuit to trigger theTRIAC in both half cycles, Provision to vary the charging time of capacitor, (changing the phase angle also)for the DIAC "

Nos

2,934

₹16,300

2,916

₹16,200

Lowest

3,150

₹17,500

2,970

₹16,500