Semi Digital Dc Drive

Semi Digital DC Drive Judicial mix of men and machinery has enabled our company to mark its strong presence in the market as one of the well equipped manufacturers and exporters of Semi Digital DC Drive. These drives have found their application in power generation plants, oil industry and pharmaceutical industry. All these digital drives are appreciated for their flawless synchronization, less maintenance and heat resistant surface. Semi Digital DC Drive is manufactured using the best quality of electrical components procured from the reliable vendors in the market.  Further Details: DC Drives manufactured by us are highly sophisticated and features provided are rarely available in its contemporary system. Features: Enhance performance by advance technique such as: Phase Locked Loop (PLL)  compensates for mains voltage variation C.T. Operated field protection to make a precise tripping Train of firing pulses by using ferrite core transformers ensure reliable triggering of thyristor Adaptive regular gives optimum response under varying load conditions Speed amplifier has facility for external current limit Current amplifier has facility for external current reference A trip relay with electrical latch provides interlock with motor The control card incorporated LED monitoring to assist in rapid fault diagnosis Provision to monitor the selected points via PLC Designed for larger power supply variations To eliminate the Re-Tuning of control card, adjustments and terminal row for external connection broght to a separate card Flat ribbon cable eliminates cumbersome conventional wiring to facilitate quick replacement Control Facilities: Linear acceleration / deceleration ramp provides independent adjustment of an acceleration and deceleration rates over a range of 2-30 Sec. If not required can be linked out Minimum speed adjustment Maximum speed adjustment Current limit Jogging / Inching Motor overload adjustment 200% of full load current at 10 Sec. 150% of full load current at 20 Sec. 125% of full load current at 40 Sec. 100% of full load current no tripping Motor Stability Speed gain LED indications to fault diagnosis: +15V/-15VDrive tripMotor OffFeedback LossField Loss (CT operated) Phase Loss / ReverseOverload Current LimitInternal Fault Operating Data: Input AC Supply : 3 Ph. 415V 10% : 50 Hz. Limit 47-62 Hz Output Voltage : 0-440V DC to Armature   : 220V DC to Field Ambient Temp : 45 C Humidity : 95% Max. Non Condensing