Two-phase power regulators TRM-2M

 Thyristor regulators (hereinafter - regulators) are designed for smooth adjustment of the lamps power, heaters and other types of loads. The temperature controller in a combination with regulator allows maintaining the temperature of the object with high accuracy. It is also possible to connect an external manual control or external adjustment of set the control parameters.

 Areas of application: metallurgy, food industry, drying, extrusion, heat treatment and melting glass, infrared equipment, semiconductors, petrochemicals, etc.

 Regulators TPM-2M and TPM-2 can be controlled manually using a potentiometer, as well as from any controller: 0-10V DC voltage (0-5V) or 0-20mA current (4-20mA), for example a temperature controller.

 Available modification with the control via RS-485 interface using the Modbus RTU protocol.
 

Thyristor switched on at the time of zero crossing of the mains voltage (Zero Crossing) for the entire period. Power to the load is proportional to the ratio of the number of periods in switched on and off state.

 Regulators TRM-2M and TRM-2 are thyristor modules with a cooler, quick acting fuse and controller, are mounted in a single case. The controller queries the external analog inputs and controlls the unit of thyristors.

 

Design of TRM-2M

 

Design of TRM-2

 

OPERATION OF THE REGULATOR

 Thyrisor power regulators TRM-2M and TRM-2 work only in number of pulse mode. In this mode the load receives ONLY whole periods of mains voltage. The number of periods and pauses between them determine the power generated at the load. Under the influence of the input signal changes the ratio between the voltage pulses and pauses in the range from 0 to 100%.

 Because of number of pulse mode of power control totally missing switching noises in net.

 Three-phase switching of the load on third reduces the power losses in the regulator, as well as a regulator price.

 

SPECIFICATION OF TRM-2M and TRM-2

Supply voltage of control circuit	180-250V, 45-65Hz
Supply voltage of load	100-480V, 50-60Hz
The maximum current in load	See a table below
The number of pulse control method - switching on thyristors at crossing voltage through a zero (Zero Crossing)
The input control actions
Enable input "START"	Dry contact or open collector NPN-transistor
Control input 1
The input control voltage	0-5V/0-10V (is selected in menu)
The maximum allowable input voltage	11V
The input current of control	0-20mA/4-20mA (is selected in menu)
The maximum allowable input current	40mA
Control input 2
The input voltage of control	0-5V
The maximum allowable input voltage	5,5V
Outputs
Built-in relay	1 switching group
Maximum switching voltage (AC1)	АС250V
Maximum switching current (AC1) AC250V	5A
Other
Overall and mounting dimensions	See a table below
Immunity to interference from bursts in accordance with GOST R 51317.4.4-99 (IEC/EN 61000-4-4)	level 3 (2kV/5kHz)
Immunity to interference over voltage in accordance with GOST R 51317.4.5-99 (IEC/EN 61000-4-5)	level 3 (2kV)
The degree's protection at  front panel/terminals of connection	IP10/no
Climatic modification and placement category by GOST 15150-69  (non-condensing)	UHL4
Operating temperature range	-25…+550C
Height above sea level	1000m
Weight	See a table below
Mode	round the clock
Board power supply	not more 2Wt
Power supply of ventilator (on thyristor regulators with rated current 100A and higher)
80mm	not more 14Wt
120mm	not more 20Wt
The specific heat	3Wt/A
An inhaling force of signal terminals and terminals of regulator supplying	0,4 - 0,6N*m
An inhaling of mounting screws of fuse
Models with rated current up to 100A inclusive	3N*m
Models with rated current up to 100A	5N*m
An inhaling of screws of power input
Screw M6	2,5 - 4N*m
Screw M8	5 - 8N*m
Screw M10	7 - 10N*m
A level of ventilator's noise
Ventilator 80mm	32dB
Ventilator 120mm	50dB
Control of thyristor	static

 

Current of load, A	Dimensions, mm			Weight net, kg	Dimensions for mounting, mm				№ picture	Power input, screw	Cooling ventilator
	Length	Width	Height		A1	A2	A3	B
30	153	115	150	1,8	122	-	-	107	1	M6	No
45
60	178	115	150	2,2	122	-	-	107	2	M6	There is
80
100
110
125	325	115	150	3,3	380	-	-	107	4	M6	There is