CD Automation

TE10S Single Phase Solid State Relay Substitution

MK-CDA — Tue, 03 May 2016 13:30:19 +0000

Are you looking for TE10S replacement?

Choose Revo S 100% Compatible and 200% Friendly.


	TE10S 16 A	TE10S 16 A + PLF/IPF	REVO-S 30 A	REVO-S 30 A + PLF/IPF
Height (mm)	115	115	121	121
Depth (mm)	93	93	125	185
Width (mm)	35	53	36	36


	TE10S 25 A	TE10S 25 A + PLF/IPF	REVO-S 30 A	REVO-S 30 A + PLF/IPF
Height (mm)	115	115	121	121
Depth (mm)	93	93	125	185
Width (mm)	53	70	36	36


	TE10S 40 A	TE10S 40 A + PLF/IPF	REVO-S 40 A	REVO-S 40 A + PLF/IPF
Height (mm)	115	115	121	121
Depth (mm)	93	93	125	185
Width (mm)	88	105	36	36

Features

SSR Input & Analogic (opt.)

Reduced Overall Dimensions

Zero Crossing,Burst Firing(opt.)

Integrated Fuse and Current Transformer

Heater Break Allarm (opt.)

Fast Quotation

[contact-form-7]

REVO S 1PH Datasheet up to 40A

REVO S 1PH Datasheet 60A - 210A

REVO S 1PH Manual up to 40A

REVO S Manual 1PH from 60A to 210A

REVO S 1PH Manual up to 40A IFH

The post TE10S Single Phase Solid State Relay Substitution appeared first on CD Automation.

What is a Thyristor Unit

Simone Brizzi — Thu, 25 Feb 2016 13:46:10 +0000

How to design an SCR Power Controller

SCR unit is a semiconductor device which acts as a switch formed by two thyristors in antiparallel.

Each thyristor is like a one way valve able to go in conduction only when are satisfied these conditions:

To form a real switch for alternating current is necessary to use two thyristor in antiparallel. Remember that thyristor does not work with d.c. voltage power supplyThe thyristor that is in conduction does not stop to conduct up to when the voltage go to zero. This also if we remove the gate signal after to have switch ON it.

Here below we can see how the thyristor unit work

Gate signal ON

When L1 is positive

the current flow in A versus and thyristor Th1 goes in conduction.

When L1 is negative

The current will flow in B versus and the thyristor Th2 goes in conduction.

If we compare the thyristor unit to a switch in this condition is ON

Gate signal OFF

Both thyristor does not go in conduction

If we compare the thyristor unit to a switch in this condition is OFF

Gate signal ON when voltage is not zero

When L1 is positive the current flow A versus only if gate signal is ON. Now we can image to give a gate signal when voltage is not zero

How is possible to understand changing the firing angle θ is possible to have a variable load voltage.

VOLTAGE PROTECTIONS

Snubber and varistor are used for voltage transient protection. Hight speed semiconductor fuses with proper I2t are used to don’t demage SCR. External fuses are offered with fuse holder capable to break the circuit from 15 to 110A in one phase units and 15 to 55 in 2 and 3 phases units. Over this value the unit will have internal fuses. CD Automation offers as an option H.B. circuit plus SCR short circuit alarm.

CURRENT PROTECTION WITH FUSES

Fault current may result from short circuit in external connections. Thyristor due their small thermal mass have a very limited overload capacity if compared to motors, transformers etc. Basically I2 t of the fuse must be less than I2t of thyristor. Overload protection is demanded to a thermal overload sensor mounted on heatsink to quench thyristor automatically when temperature can damage the unit. For thyristor protection don’t use circuit breaker because its speed to open circuit is too slow and thyristor will be damaged in case of short circuit.

ADVANTAGES OF THYRISTOR UNITS

The benefits of thyristor units (also called Thyristor Power Controller and SCR Power Controller) compared with electromechanically contactors are numerous:

No mechanical parts moving
Thyristor offer a reliable long term solution
Very fast switching
Life of thyristor unit can be evaluated from 5 to 10 year depending on how the thyristor are stressed. The normally electrical life of contactors is 1,5 million of operations that can be reached in few months.
Ex: Imagine a furnace with contactor driven by a temperature controller with a cycle time of 20 sec. At 50% power demand is 10sec ON+10sec OFF.
That means that contactor is switched ON every 20 sec. During one working day over 3 turns(24 hours) the contactors life is given by:
1Hour = 180 switching of contactor
1Day = 180×24=4820 swicting
Calculation life = 1.500.000 / 4.820 = 347 day
This means that every years the contactors must be changed with labour cost and stop of production.
Better temperature control due to very fast switching and better resolution in controlling the power. Save money for reduction of scrap
Better quality because keep constant the temperature with no fluctuation
Increase the heating element life because with very fast switching there are no thermal stresses.
Lower maintenance cost for contactor and for heating elements substitution.
Protection of thermal elements and building parts of furnace or machine with current limit, power limit to remain within limits specified
Reduction of cost because is possible to establish how many elementary loads has to be fired on same time. Avoid to have peak demand power
Capability to monitor in a control room all the loads via the communication bus available on CD Automation thyristor units.
Possibility to diagnostic via serial link faults on heating elements or on thyristor units
Communication can be used to control for power set point and reading of voltage, current, power, and load status. Recipe facility are olso available with digital communication.

CD Automation offer a wide range of products for the control of the power by Thyristor (SCR):

Money savings due to a wide choice of 27 sizes from 10A to 2600A.
Innovative product range using digital technology also on small units (15 A).
RS485 communication with modbus protocol standard on all families with exclusion of CD3000S.
Configuration semplicity via Frontal KeyPad, external KeyPad or portable PC.
Possibility to download the suggested software configuration clicking on your application.
Universal Thyristor where is possible to configure all inputs types, firing modes and feedback.
All informations are available on our Web Site download page, where you can find Sales literature, Maintenance Manuals, Configuration software and possibility to ask for enquires.
Very efficient Help Desk to solve application problems. Call us and you will speak directly with our R&D team.
Remote service via Internet.