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Thyristor DC Drive

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Thyristor DC Drive Specification

Motor Type
DC Motor (shunt/compound/series compatible)

Features
Field weakening, speed feedback, comprehensive protection, compact design

Rated Frequency
50 Hz

Pressure
Atmospheric

Noise Level
Low

Torque
Constant torque control

Voltage
230/415V AC Input (as per model)

Horse Power
Up to 250 HP (as per model)

Ambient Temperature
0C to 45C

Current Type
DC Output, AC Input

Starting Type
Soft Start

Sealed Type
Open/Protected as per model

Rated Voltage
Up to 440 V DC Out (as per model)

Efficacy
>90%

Power Rating
According to model (up to 200 kW)

Product Type
Thyristor DC Drive

Output Power
Variable, as per model (typically up to 200 kW)

Frequency (MHz)
50 Hz (Line Frequency)

Protect Feature
Overload, Short Circuit, Over Voltage, Under Voltage Protection

Phase
Three Phase / Single Phase options available

Speed
0 to Full Speed Control

Power
Up to 200 kW (as per model)

Color
Grey

Dimension (L*W*H)
410mm x 340mm x 170mm (approx. for standard model)

Mounting Type
Panel Mount

IP Rating
IP20/IP21

Enclosure Material
Powder coated steel

Output Current
Up to 500A (as per model)

Speed Regulation
Up to 1% with speed feedback

Cooling Fan
Inbuilt for higher models

Display
LED Display for parameters

Control Method
Phase Angle Control via SCR

Field Supply
Integrated, 180/220V DC

Panel Cutout Size
As per specific model

About Thyristor DC Drive

Our company has marked a global presence in the domain by manufacturing and supplying Thyristor DC Drive. We manufacture the drive under the strict guidance of the expert professionals using only superior grade materials and components. The drive is tested on efficiency and performance parameters to ensure that only flawless range is provided to the clients. We offer the Thyristor DC Drive to the clients at the pocket friendly prices.

Features:

Regulated control power supply
High starting torque
Easy to install

Advantages of DC motor & drive

1. Ease of control

2. Delivers high starting torque

3. Near linear performance

Drive is relatively simple & cheap.

SERVICE CONDITIONS

ENCLOSURE : Chassis ( panel mount ) With Acrylic cover

HORSEPOWER RATINGS : 1/8HP to 3HP,10 HP two phase,20 to 150 HP Three phase.

INPUT : 240VAC , 1 phase , 50/60 Hz ,415 v two phase,or threephase for drives

above 20 HP

LINE VOLTAGE VARIATION : +/- 10 %

LINE FREQ VARIATION: 48 - 62 Hz

FIELD SUPPLY : 5A Max

AMBIENT TEMPERATURE: 0 to 55 degree celcius

SPACE REQUIREMENT: 180 X 200 X 70 mm.

Box sizes vary as per specs.Check with your quote.

PERFORMANCE SPECIFICATIONS

SERVICE FACTOR : 1.0 max rating ( continuous duty )

SPEED REGULATION: +/- 1% of max. speed

For a 95 % Load change using

Tachofeedback with IR compensation

FOR ALL OTHER VARIABLES: Changes upto 10%

OVER LOAD CAPACITY: 150% For one minit

ACCELERATION TIME : 1 - 10 sec settable

DECELERATION TIME : 1 - 10 sec settable

CURRENT RATING : 150 % of selected rating

PRESET ADJUSTMENTS

The standard control includes 2 costumer adjustsble presets located on

PCB . For proper operation in some application minor readjustments may

Be necessary during drive installation & startup .

MAXIMUM SPEED : 70 % to 115 % of rated speed

MINIMUM SPEED: 0 to 30% of maximum speed

IR COMPENSATION: 0 to 20% of rated voltage at rated current

FEATURES

MODE OF CONTROL: Speed or torque regulation ( optional)

SPEED ADJUSTMENT: By Potentiometer

OPERATING VOLTAGE: 120V or 240V

CURRENT LIMIT LEVEL: settable upto max of 150% of rated current

REGULATED CONTROL POWER SUPPLY .

dv / dt PROTECTION.

OPTIONAL ISOLATED ARMATURE FEEDBACK .

Advanced Speed Accuracy and Control

This thyristor-based DC drive offers phase angle control, enabling operators to fine-tune motor speeds from zero to full range. When equipped with speed feedback, it delivers up to 1% speed regulation, making it suitable for demanding applications where precision is essential. The integrated field supply and soft start function contribute to smoother operations and enhanced equipment longevity.

Comprehensive Protection and Safety

Engineered with sophisticated protection mechanisms, the drive guards against overloads, short circuits, overvoltage, and undervoltage situations. The systems robust fault tolerance and IP20/IP21 enclosure ratings ensure dependable operation in varied industrial environments. This high level of protection minimizes downtime and safeguards connected equipment.

Versatile and User-Friendly Design

With a compact powder-coated steel cabinet and LED display for clear parameter monitoring, installation and maintenance are straightforward. Panel mounting, variable output ranges, single or three-phase compatibility, and inbuilt cooling for higher models add to its versatility, making it an adaptable choice for diverse motor control needs within Indias industrial sector.

FAQs of Thyristor DC Drive:

Q: How does the phase angle control method benefit the operation of the Thyristor DC Drive?

A: Phase angle control via SCRs allows precise adjustment of voltage supplied to the DC motor, enabling smooth acceleration, deceleration, and accurate speed control. This method ensures optimal performance and energy efficiency, especially when paired with speed feedback for up to 1% regulation.

Q: What are the main protection features provided by this DC drive?

A: The drive is equipped with built-in protections against overload, short circuit, overvoltage, and undervoltage. These features help prevent damage to both the drive and the connected DC motor, ensuring safe and reliable operation across its full power range.

Q: When should an inbuilt cooling fan be utilized in this drive system?

A: Inbuilt cooling fans are included with higher capacity models to manage additional heat produced during operation at elevated currents (up to 500A). Its essential for maintaining optimal performance and longevity in these environments.

Q: Where is the Thyristor DC Drive typically installed?

A: This drive is designed for panel mounting within control cabinets in industrial settings. Its compact design and choice of open or protected enclosures (IP20/IP21) allow flexibility in installation to suit site-specific requirements.

Q: What process is followed for configuring the output power and speed?

A: Output power, speed, and other parameters are set via an intuitive LED display interface. Depending on the model, users can select desired voltage, current, and speed feedback settings to tailor the drives operation to specific DC motor requirements.

Q: How is field supply managed in this drive?

A: An integrated 180/220V DC field supply is built into the unit, providing stable excitation for shunt, compound, or series DC motors. This reduces the need for external supplies and simplifies installation.

Q: What are the key benefits of using this Thyristor DC Drive for industrial applications?

A: Key advantages include precise speed and torque control, high efficiency (>90%), comprehensive safety features, soft start, and compatibility with various DC motor types. Its robust design and flexible installation options make it ideal for demanding industrial motor control scenarios.

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