Regulated DC Power Supply with DC Distribution Panel

Products Categories

Order Code: 69027

PERFORMANCE SPECIFICATION FOR STATIC CONVVERTER SCOPE :- Our specification covers design, manufacturing, inspection, testing, supply of the DRIVE. INPUT SYSTEM :- Normal Voltage : 415V /- 10% No of phases : Three phase, fou...

SPECIFICATION

PERFORMANCE SPECIFICATION FOR STATIC CONVVERTER

SCOPE :- Our specification covers design, manufacturing, inspection, testing, supply of the DRIVE.
INPUT SYSTEM :-
- Normal Voltage : 415V /- 10%
- No of phases : Three phase, four wire
- Frequency : 50Hz /- 2%
- Fault level : 20KA RMS at 415 V.
- Neutral earth : Solidly earthed.
TECHNICAL PARTICULARS :-
- Output Voltage.
  - Armature : 440V DC Max.
  - Field : 220V DC
  - DC Motor Blower : 415V /-10%, 50Hz /-2%, 3Ph.
- Output Current.
  - Armature :
  - Field :
- Speed Control.
- Accuracy of speed control. /-2% under Arm. Voltage feedback.
- Soft start.Acceleration and deceleration control from 5sec to 30sec adjustable.
- Type of control : Tacho/Arm. Voltage feedback.
- Direction of rotation.:
- Braking.
- Type of cooling : Forced air cooling
CONVERTER MODULES. It consists of the following modules.

Input module
Thyristor module
Regulation module
Output module
Excitation module
Indicating and operating module
Protection module
Input module: The incoming 415V 3PH four wire supply will be brought into this module. It consists of
- Tripple pole and neutral incoming AC heavy duty isolator switch.
- Three nos. HRC fuse link for mains.
- Main contactor
- Line surge suppressor consisting of capacitors, resistors & MOVs.
Thyristormodule: It will consist of three phase, full wave, fully controlled thyristor bridge assembly comprising of
- Six nos. derated thyristors each mounted on Aluminium heat sinks
- RC Snubber circuit for power semi-conductors.
- MOVs to protect thyristors against spikes.
- Pulse transformers to isolate the control circuit from power circuit.
- Forced cooling arrangement.