EMTECH SOLUTION - AHMEDABAD

3PH SCR (Thyristor) Power Controller

Advantages :

The load power is Proportional to controller input
Output to body 4kV~ isolation
Input to Output 2500vrms isolation
Heat Sink + Din Rail Mounting (35mm)
Inbuilt Snubber network
Controlled range 10% to 90% of line voltage Linearity Better than ±2%of the range.

Applications :

Precautions:

Used for resistive load only
Do not give DC voltage at 4-20mA input control of SSR otherwise input of SSR will fail
Phase Line voltage should be in range of 230VAC ±10% or 440 vac ±10%
SSR will not work if heater connected in star without neutral
Heat sink temperatures should not increase 70°C
For dv/dt and transient voltage uses dv/dt snubber and metal oxide variastor externally
Protection : use semiconductor fuse for short circuit protection
Phase angle varies so that Rth will change So bigger size of Sink is required

Solid State Relay

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