Signotron Tower Plot J1-6, Block - EP, Sector - V, Salt Lake Electronics Complex, Kolkata - 700 091
03323573481
Input Voltage |
72V DC (Range 50V to 90V DC). |
Output Voltage |
3-Phase, 40V ± 5%. |
Output Waveform |
PWM Sine wave. |
Output frequency |
60 Hz. |
Output Power |
0.5 HP / 0.87 HP / 1.5 HP |
Load P.F. |
> 0.8. |
Control mode |
PWM with v/f control. |
Efficiency |
>85% |
Application |
Diesel Locomotive |
Installation |
More than 20,000 installations in Rolling Stock. |
Input Voltage |
90V – 140V DC / 55V – 90V DC |
Output Voltage |
3-Phase, 110V DC / 72V DC |
Wattage |
300W / 400W / 500W / 1kW / 5kW / 10kW |
Efficiency |
>85% |
Enclosure |
IP-54 |
Application |
Diesel & Electric Loco |
Installation |
More than 10,000 installations in Diesel /Electric Locomotives, EMUs and DEMUs. |
Input Voltage |
72V DC (Range 50V to 90V DC). |
Output Voltage |
230V AC / 110V AC |
Output Waveform |
Sine wave. |
Rating |
500VA to 25KVA |
Efficiency |
> 90% at full load |
Enclosure Protection |
IP 65 |
Application |
For Pantry loads, 1.5-ton Air and carriage fans non-AC coaches. |
Installation |
More than 3000 installations in Rolling stock. |
Input Voltage |
415V AC, 3-Phase, 50Hz. |
Output Voltage |
100-155V DC current |
Wattage |
28KW |
I/P current THD |
<7% |
Power Factor |
<0.98. |
Nature of cooling |
Natural |
Output Voltage ripple |
<2% |
Output Current Ripple |
<3% |
Efficiency |
>92% at full load |
Application |
Coach Battery Charging |
Installation |
More than 2000 installations in Rolling stock |
Input Voltage |
415V AC, 3-Phase, 50Hz |
Output Voltage |
155V / 310V DC current |
Output Current |
25 Amp / 220 Amp |
Wattage |
68 KW |
I/P current THD |
<5% |
Power Factor |
Unity during Charging / Discharging |
Output Voltage ripple |
<2% |
Output Current Ripple |
<3% |
Efficiency |
>92% at full load |
Efficiency |
>92% at full load |
Application |
Charging of Coach Battery in workshop / depot / station |
Installation |
More than 500 installations in Rolling stock. |
Description |
An Active Front-End based underslung Battery Charger with in-built standby Emergency Battery Charger for backup as per RDSO Specification No. RDSO/PE/SPEC/AC/0183 (REV ‘2’) - 2024 |
Application |
Battery Charging of 70Ah/120Ah (both flooded and VRLA) Lead Acid Batteries in LHB coaches |
Regulated Battery Charger: |
|
Input Nominal Voltage |
415 V AC Three Phase 4 Wire |
Input Voltage Range |
350 V AC to 480 V AC |
Frequency |
50 Hz ± 3% |
Input Power Factor |
> 0.98 at 100% load |
Input Voltage & Current THD |
>8% at 50% load to 100% load |
Output Nominal Voltage |
122±2% V DC |
Output Voltage Range |
110 V to 135 V DC (Settable with the help of keypad) |
Output Current |
35 Amp |
Output Power(KW) |
4.5 KW |
Efficiency |
> 92% @ Full Load |
Voltage Ripple |
<2% |
Current Ripple |
< 3 % |
Emergency Battery Charger: |
|
Input Nominal Voltage |
240 V AC Single Phase |
Input Voltage Range |
204 V AC to 276 V AC |
Frequency |
50 Hz ± 3% |
Input Power Factor |
> 0.98 at 100% load |
Input Voltage & Current THD |
>8% at 50% load to 100% load |
Output Nominal Voltage |
122±2% V DC |
Output Voltage Range |
105 V to 122 V DC (Settable with the help of keypad) |
Output Current |
22 Amp |
Output Power(KW) |
2.6 KW |
Efficiency |
> 90% @ Full Load |
Voltage Ripple |
<2% |
Current Ripple |
<3% |
Description |
The Inverter will operate under emergency conditions from DC battery supply and generate sufficient output to drive a 3-phase Induction Motor with two Blower Wheels |
Input Voltage |
77V – 138V DC, 3-Phase, 50Hz. (Nominal 110V DC) |
Output Voltage |
380V AC, 3-Phase, 50Hz |
Nominal Output Power |
950 Watt (1200VA) |
Current THD at Output |
<20% |
Enclosure Protection |
IP-54 |
Efficiency |
≥92% |
Application |
For Emergency Blower in Metro & AC EMU’s |
Protections |
I/P OV, I/P UV, O/P OL, O/P SC, OT trip, IP RP |
Description |
This is an IGBT based DSP controlled rectifier with input power factor control |
Input Voltage |
45V – 52.5V AC, 3-Phase, 50Hz. (Nominal 50V DC) |
Input Power Factor |
>0.98 |
Current THD at Input |
<10% |
Output Voltage |
110V DC |
Nominal Output Power |
12 kW |
Efficiency |
>92% at full load |
Output Voltage ripple |
<2% |
Application |
For charging of Loco Battery |
Installation |
More than 02 installations in Rolling stock. |
Input Voltage |
90V – 140V DC |
Output Voltage |
56V AC, 50Hz. |
Wattage |
2.5 KVA / 5 KVA |
Input current THD |
<7%. |
Power Factor |
<0.98. |
Nature of cooling |
Natural |
Output current ripple |
<3% |
Efficiency |
>90% at full load |
Connected Load |
Blower |
Application |
For Emergency Blower in HVAC system |
Installation |
More than 500 installation in Kolkata Metro |
Input Voltage |
90V – 140V DC |
Output Voltage |
56V AC, 50Hz. |
Wattage |
2.5 KVA / 5 KVA |
Input current THD |
<7%. |
Power Factor |
<0.98. |
Nature of cooling |
Natural |
Output current ripple |
<3% |
Efficiency |
>90% at full load |
Connected Load |
Blower |
Application |
For Emergency Blower in HVAC system |
Installation |
More than 500 installation in Kolkata Metro |
Input Voltage |
55V – 90V DC |
Output Voltage |
415V AC, 3-PHASE, 50hz. |
Wattage |
4.4 kVA |
I/P current THD |
<7%. |
Power Factor |
<0.98. |
Nature of cooling |
Natural |
O/P Voltage ripple |
<2% |
O/P current ripple |
><3% |
Efficiency |
>90% at full load |
Connected Load |
Compressor Motor |
Application |
Running of HVAC system |
Installation |
More than 200 installation |
The Permanent Magnet Alternator which uses a rare earth element as a rotor for its alternator is much smaller, lighter, and fits seamlessly in a fiat bogie
High energy efficiency due to the usage of special magnetic material
High power to weight ratio (energy density) 0.08 for 30 KW PM Alternator as compared to 0.05 for 25 KW Brushless Alternator
Low leakage inductance resulting in better response/p>
Easier maintenance
This is a state-of-the-art GPS, GPRS, and UHF telemetry system to run a comprehensive Freight Rail operation as per RDSO FRS RDSO/2019/EL/FRS/0025.
Has inbuilt Marker Light and Disable Train Warning Light
Measures and displays (locally and online) the brake pressure, speed, and location of the train.
Assists the loco driver in making intelligent assessments and taking action regarding train integrity, fouling mark clearance, and emergency brake application.
The system is a GPS-based Public address and Passenger information system (PAPIS) with LED destination boards for long-distance train coaches as per RDSO/CG-18001.
Equipped with GPS technology for activating location-based audiovisual information and calculating kilometer-run by the coach
Displays Train Route, Next Station, Train Running Status, etc. inside coaches on Multilingual LCD or LED Displays.
GPRS or wi-fi-based remote accessibility of the coaches to monitor operational parameters from the maintenance depot and Web Server.
Description |
Multisection Digital Axle Counter |
Ref. Specification |
RDSO/SPN/176/2013 |
Salient features |
|
Description |
SMPS based Integrated Power Supply system is suitable to work up to 15KVA signalling load at LC gate |
Ref. Specification |
RDSO/SPN/165/2023 |
Section of IPS |
A) FRBC Section with DSA Unit, B) AC Distribution Section (AC-AC Converter & DC-AC Inverter), C) DC Distribution Section (DC-DC Converter), D) Status Monitoring Panel, E) Battery Bank |
Salient features |
|
Description |
LED based TBHL based on RDSO Specification RDSO/2017/EL/SPEC/0134 |
Input Voltage |
72V DC & 110V DC (Nominal), |
Photometric Intensity |
|
Protections |
IP-66 |
Description |
40 KVA, 3 Phase, HVAC Inverter for the Mumbai Monorail |
Input Voltage |
700V-900V DC |
Output Voltage |
415V AC, 3-Phase, 50Hz. |
Output Capacity |
40 KVA |
Controls |
DSP Control 3 level NPC Converter |
Connected Load |
Compressor Motor |
Protections |
I/P OV, I/P UV, O/P O/L, O/P SC, OT trip |
Description |
VVVF DRIVE FOR HVAC APPLICATION |
Input Voltage |
375V-500V AC / 110V DC, 3-Phase, 50Hz. |
Output Voltage |
380V AC / 415V AC (Main) / 290V (Emergency), 3-Phase, 25Hz - 100Hz. Above 75 Hz Output Voltage will decrease as per v/f ratio required for Compressor |
Output Current |
17A (Nominal), 25A (Max) / 2.5A (Nominal), 3A (Max) |
Output Capacity |
7.5 kW / 6 kW / 1.1 kW |
Controls |
Variable Voltage Variable Frequency. Target Frequency as per analog Input from Controller |
Connected Load |
Variable Speed Compressor & Blower Motor |
Protections |
I/P OV, I/P UV, O/P SC, OT trip |
Description |
This Inverter is built as per BLW spec. WDG4/EL/PS/35 Rev 06. There is one 2-phase Inverter to drive the Compressor and one single phase Inverter with two separate outputs for Condenser and Evaporator Blower Motor |
Input Voltage |
50V – 90V DC |
Output 1 |
|
Output Voltage |
240V AC, 2-PHASE, 3 WIRES, 50HZ |
Capacity |
5 KVA |
Connected Load |
Compressor Motor |
Control Method |
DSP Controlled with VVVF soft start based on temperature feedback whenever compressor will start |
Output 2 |
|
Output Voltage |
230V AC, 1-PHASE, 50HZ |
Capacity |
450VA |
Connected Load |
Evaporator Blower Motor |
Control Method |
Voltage variation for speed control |
Output 3 |
|
Output Voltage |
230V AC, 1-PHASE, 50HZ |
Capacity |
300VA |
Connected Load |
Condenser Blower Motor |
Control Method |
Constant Voltage operation |
Protections |
I/P OV, I/P UV, O/P OL, O/P SC, OT trip |