630 Amp Generator Switches

RDS3-630 Radin Built-in ATS Controller 630 Amp Automatic Transfer Switches

Overview:

630 Amp Generator Switches are compact in size, even smaller than the company's RDS2 series, saving space; Technical know-how electrical plating at copper parts, make it have high breaking capacity than others. Also has arc chutes room inside. It adopts 2 in 1 terminal copper bar design, easy wiring; At fire-fighting emergency, 401-404 terminals receive signal to transfer to "O" position; Optional built-in intelligent control modules B/E, E module is the intelligent module with LCD display, with LCD, it's parameters becomes programmable, e.g. high/low voltage protection, high/low frequency protection, transfer delay timers are programmable, engine exerciser timers are programmable, and fault transfer to "O" position at intelligent module. AC-33B utilization category per IEC/EN 60947-6-1 standard. RDS3 is TUV/CE certified.

RDS3-630 Technical Data:

Controller Functions

● Under-voltage detection

Controller makes under-voltage detection for main power and backup power, when the under-voltage is detected with the power supply, it will start the auto transfer function to transfer to another power supply. When the power supply voltage is detected recovered to acceptable range (Recovery value), controller will decide whether make transfer according to the setted transfer mode and also can set transfer delay time.

● Over-voltage detection

Controller makes over-voltage detection for main power and backup power, when the over-voltage is detected with the power supply, it will start the auto transfer function to transfer to another power supply. When the power supply voltage is detected recovered to acceptable range (Recovery value), controller will decide whether make transfer according to the setted transfer mode and also can set transfer delay time.

● Transfer delay

When the main power is confirmed abnormal and backup normal, transfer delay start delay counting, after time delay is over then transfer from the main power to backup power. This time delay can wait to confirm whether the main power is short time abnormal, also can avoid switch frequently transfer.

● Recovery delay

Recovery delay is after backup power supply, and main power is confirmed available, then start delay counting, when delay time is over then transfer from the backup power to main power. This delay time can wait the main power supply

output stable before it supply to the load.

● Generator start delay

Generator start delay can avoid starting genset due to short time power off. When main power fault then start delay counting, and after the delay time is over then send generator start signal.

(Note: when the main power suddenly cutoff and genset didn’t start, under this situation it can’t delay due to no power supply to the controller, if need to use this function have to connect a DC24V aux. power supply to the controller to achieve the time delay function)

● Generator stop delay

Generator stop delay can remain the generator in hot backup status after it stop power supply to the load, avoid the genset restarting due to main power in short time recovery. When transfer from the backup power to main power supply then start the delay counting, after delay time counting is over then controller send genset stop signal.

● Transfer mode

Controller provides different transfer mode function according to the power supply property

1: Power grid - Power grid:

At the application of power grid - power grid, ATS can provide auto transfer with auto recovery and auto transfer no auto recovery two transfer mode.

Power grid - power grid auto transfer with auto recovery mode

Power grid - power grid auto transfer no auto recovery mode

2: Power grid - generator mode

Transfer between power grid - generator

LCD Display Panel

1: Auto, Manual working mode indicate;

2: Setting status indication;

3: Generator start signal indicate;

4: Fire linkage function start indicate;

5: Main power status data indication zone: during working status display main power voltage data and transfer delay time, during setting status display setting item code;

6: Backup power status data indication zone: during working status display backup power voltage data and recovery delay time, during setting status display setting item code;

7: Setting button: press this button will enter into controller setting menu;

8: Auto/Manual transfer mode selection button: under working status it used to select the Auto and Manual transfer mode, under the setting status it used as save and escape function;

9: Trip button: under manual control mode if any one of the two power is good, push this button will change to OFF position; under setting status it is used for data decrease button;

10: Main power transfer button: under manual control mode and main power good, push this button will forced to transfer to main power; Under setting status, it used for up page button;

11: Backup power transfer button: under manual control mode and backup power good, push this button will forced to transfer to backup power; Under setting status, it used for down page button;

12: + Button: under setting status this button is used as data increase button.

630 Amp Generator Switches are reliable mechanical interlock devices and electrical interlock protection, avoid two MCCB closing at same time; Controller power supply and power source sampling power are separated from SCM control system, from the hardware design to overcome the EMI;

Controller display panel removable can be separately install, to match different installation requirements; Frame current: 63, 125, 250, 400, 630, 800, 1250A

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