SCR Triggering Cards for Phase Angle Control

Libratherm Instruments Pvt Ltd (Manufacturer)
SCR Triggering Cards for Phase Angle Control

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Product Profile

Libratherm offers SCR triggering cards, model LTC-12, LTC-13 and LTC-15, designed to fire or trigger back-to-back connected SCRs using synchronised phase angle control technique. These cards accept analogue control signals and provide proportional gate/cathode triggering pulses. These cards also pro...

Technical Specifications

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Available Configuration

Single phase, Two phase, Three phase (4 wire star and  6 wire delta)

Control Action

Phase angle control (self synchronized)

Control Signal

(4-20)mA / (0-5)VDC / External potentiometer (any one)

Output

Suitable Triggering Gate – Cathode pulses to fire back-to-back connected SCRs. 4 pulses (G1K1+ G2K2) for single or two phase control and

12 pulses for 3 phase control.

Smooth Control

Adjustable Ramp Up and Ramp Down Time for soft increase and decrease of output voltage

Current Control

Current Limit and Current Trip settings using on card presets.

Feedback is taken from external CT (LTC-13 and LTC-13D)

Settings

For adjusting  maximum and minimum voltage  per phase.

Load Type

Suitable for both resistive and inductive loads

(15A to 500A @ 230/415 VAC)

Supply Voltage

230 / 380 / 415 VAC, 50/60 Hz. (As required)

Sizes  in mm. / Mounting

115 x 115 x 70   (LTC-12) – On Flat plate mountable using 4 screws.

110 x 135 x 70   (LTC-13N) - On Flat plate mountable using 4 screws.

110 x 135 x 80   (LTC-13D) – 35 mm. DIN rail mountable.

125 x 160 x 70   (LTC-15-4-6) - On Flat plate mountable using 4 screws.

125 x 160 x 70   (LTC-15-3) - On Flat plate mountable using 4 screws.



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