Stager YDE6500E, Manual, Page: 19 / 30

7. LOAD
NOTICE
•
Do not start 2 or more loads simultaneously. Start them one by one.
•
Do not use floodlights together with other loads.
•
Start motor type load first and then resistive load.
7.1 AC application
1.
Be sure to run the generating set at rated speed, otherwise AVR (Automatic Voltage
Regulator) will produce the forced excitation. If the genset runs long time under such
condition, AVR will be burned out.
2.
After switching on the air breaker, observe the voltmeter on the control panel, the voltmeter
should point to 230V±5% (50Hz) for single-phase generator set, 400V±5% (50Hz) for three-
phase generator ser, then connect the loading to the unit. (The actual voltage of genset is
vary with local code.)
3.
When the double voltage generator set changes over the voltage, the circuit breaker should
be set at "OFF" position. Otherwise the generator set and load will be burned out and
damaged.
4.
Connect different loads to the generator set in order. In case of motor load, firstly the heavy-
duty motor should be connected, then the light-duty motors. If the operation is false, the
generator set will lag or stop suddenly. lt is necessary to unload the generator set
immediately and turn off the main switch and do checks.
5.
Three-phase generating set
•
Balance three phases during the operation. Stop the engine for check if the tolerance
exceeds 20%. Be sure to keep the tolerance among three phases less than 20%.
•
The load for each phase must below the rated load as well as the current must less than
rated current.
A, B,C,D (or U, V, W, N) phase arrangement should be from left to right, or clockwise.
•
Concerning starting the three phase asynchronous motors, first start the heavy duty motors,
then start the light-duty motors.
NOTICE
•
If overloading of the circuit trips the AC circuit protector, reduce the load on the circuit, and wait a few minutes
before resuming operation.
•
Breaker can prevent the electric shock. The replacement must features same degree and performance.
•
Electrical equipment (including electrical lines and plugs connection) must be free of defect. By the effect of
mechanical stress, make sure to use the rubber sheathed flexible cable or analog (meet with IEC245-4).
•
Limit length of electric wires by extending wire or distributed wiring network: 1.5mm
2
cable must be less than
60m, and 2.5mm
2
cable should be less than 100m.
7.2 DC application
1.
DC terminals are only for charging 12V battery.
2.
Set the circuit breaker at "OFF" position while charging. Connect charging wires to 12V
output terminals.
3.
Concerning the automatic type battery with the leads, be sure to disconnect the negative
leads of the battery while charging.
CAUTION
•
Connect the positive and negative poles of the battery with the positive and negative poles of DC terminals
separately. Do not confuse them, otherwise the battery and generating set will burn out.
•
Do not connect the positive pole of the battery with its negative pole, otherwise the generating set damage will
result.
•
When a large capacity battery is charged, excessive current flows, the fuse for the direct current will burn out.
•
Do not run the generating set while it is still connected with the external battery.
•
Do not use DC12V and AC simultaneously.
Ver. 3/Rev. 1; Data: 03.02.2022; 45