Menu Structure

1.0 Operation Mode	1.1 left to escape, right to continue	to prevent accidental mode switching
	1.2 User Mode ELC IGC Protection Relay User Load Output Test	1. for sychronous Generators 2. for Induction Generators 3. emergency fault shutdown 4. automatic user load warning and switching 5. Output Test Mode switches all outputs on,     regardless of input values
	1.3 single phase/3phase
	1.4 up one level
2.0 Input Readings	2.1 Hz
	2.2 AC Volts L1 L2 L3
	2.3 DC Volts	for checking a backup battery to operate the water valves in case of power outage
	2.4 current amps
	2.5 Dump load percentage	how much of the dumpload is currently on
	2.6 shutdown reason
	2.7 total operating days	while all values are in range. write to eeprom every day and while shutdown
	2.8 operating days since last shutdown	"
	2.9 reset total operating days
	2.10 one level up
3.0 Range Settings		For fault detection
	3.1 minimum frequency
	3.2 maximum frequency
	3.3 Minimum AC Voltage
	3.4 Maximum AC Voltage
	3.5 Minimum DC Voltage
	3.6 Maximum DC Voltage
	3.7 maximum amps
	3.8 delay time	for how long must the value be permanently out of range to trigger shutdown
	3.9 up to top menu
4.0 ELC/IGC Settings	4.1 ELC: target frequency	50 or 60 Hz
	4.2: IGC: target voltage	220, 230, or 240 Volt (depending on your country)
	4.3 P-Value	see here
	4.4 I-Value
	4.5 Valve ON /secs	in case the valves operate very quickly, one can specify a run (ON) / wait (OFF) time here to slow the change rate down and avoid oscillation
	4.6 Valve OFF /secs
	4.7 up to top menu
5.0 Protection Relay	start up/fault reset	Main relay/connector will be released as soon as all values are in the green range. If there is a water valve relay, it will be released even if there is no Mains Voltage.
6.0 User Load Settings
	6.1 Back on Voltage	hysteresis, after user load has been disconnected
	6.2 Back on frequency	hysteresis, after user load has been disconnected
	6.3 delay time before off	The first relay will switch immediately, this can be use for a warning signal. The second relay will switch after the time specified here.
	6.4 delay time before back on	This gives the users time to disconnect appliances before the cotroller tries to reconnect.
	6.5 overload warning signal	When activated, this will regularly switch on some dumpload in case of underfrequency/undervoltage. the resulting frequency drop will change the sound of the hum in user appliances. If they hear this, they should switch off loads.
	6.6 up one level
7.0 Calibration		Adjust meter readings
	7.1 Line 1 correction factor
	7.2 Line 2 correction factor
	7.3 Line 3 correction factor
	7.4 DC correction factor
	7.5 Amps correction factor
	7.6 P-I Auto Tuning	not implemented
	7.7 software/hardware version	mention this in communication for problem tracing
	7.8 up one level

What is an ELC?

Electronic Load Controller.

This site has moved to www.hydroelectronics.net

Controllers are available for order on the new site.

In order to make the power of your generator useable, you need to make sure the voltage (Volts) and the frequeny (Hz) stay stable.  List of worldwide mains voltages and frequencies.

The AVR Automatic Voltage regulator takes care of the voltage.

The ELC takes care of the frequency.

Principle: 

The higher the user load, the lower the frequency will get. So if you switch on the kettle, the frequency will drop. The ELC does nothing more than switching off an equal amount of power (wattage), so the frequency stays stable even after you've switched on the kettle.

So in effect, the total amount of power consumed always stays the same.

To ensure this switching works as smooth as possible, the ELC uses a Proportional-Integral feedback loop, PI-Controller

This site has moved to www.hydroelectronics.net

Controllers are available for order on the new site.

Overspeed

Why is overspeed dangerous for the generator?

Especially with bigger systems, the generator is not rated for much more speed than the operational speed. Check your generator ratings.
If, say, the AVR (Automatic voltage regulator) or the excitation system fails, there will be no load on the turbine, and the generator will speed up. The centrifugal force will loosen the wire windings of the generator and tear them apart.