ESD 5221 Electrical Generator Speed Control Governor Unit ESD5221


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Substitute GAC Speed control unit ESD5221

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Diesel Generator Speed Governor ESD5221 Speed Control Unit is rugged enough to be placed in a control cabinet or engine mounted encosure with other dedicated control equipment. If water, mist or condensation may come in contact with controller, it should be mounted certically. This will allow the fluid to drain away from the speed control unit.

ESD5221 built on the basis of the start of the new fuel control and smooth slow start to control the process, these new features can be resolved in the engine to start the process by the rapid filling of black smoke caused by the phenomenon has greatly improved the engine’s life . At present,it is very rich, perfect models in the new generators are widely in use.



Generator automatic governor speed control unit ESD5221
 Input Supply 12 or 24 VDC Battery System (Transient and Reverse Voltage)
 Polarity Negative Ground (Case Isolated)
 Power Consumption 50 ma continuous plus Actuator current
 Actuator Current Range @77°F
(25 °C) – (Inductive Load)
 Min.2.5 Amps; Max. 10Amps continuous
 Speed Sensor Signal 0.5-120 Volts RMS
 Speed switch Relay
Contacts(N.O.and N.C)
 10 Amps
 Performance Isochronous Operation/Steady
State Stability
 ±0.25% or better
 Speed Range/Governor 1K to 7.5K Hz continuous
 Speed Drift with Temperature ±1% Max
 Idle Adjust CW 60% of set speed
 Idle Adjust CCW Less than 1200 Hz.
 Droop Range 1-5% regulation
 Droop Adj. Max. (K-L
 400 Hz., ±75Hz. Per 1.0A change
 Droop Adj. Min. (K-L Jumpered) 15Hz., ±6Hz. Per 1.0A change
 Speed Trim Range ±200 Hz
 Remote Variable Speed Range 500 – 7.5 Hz. Or any part there of Terminal Sensitivity
 Terminal Sensitivity J 100 Hz., ± 15Hz / Volt @ 5.0 K Impedance
 Terminal Sensitivity L 735 Hz., ±60 Hz / Volt @ 65 K Impedance
 Terminal Sensitivity N 148 Hz., ±10 Hz / Volt @ 1 Meg. Impedance
 Terminal Sensitivity P 10 VDC Supply @ 20 ma Max
 Speed witch adjustment range 1000-10000HZ
 Environmental Ambient Operating
Temperature Range
 -40 to +180°F(-40°+85 °C)
 Relative Humidity Up to 95%
 All Surface Finishes Fungus Proof and Corrosion Resitant
 Reliability Vibration 1G @ 20 to 100 Hz.
 Testing 100% Functionally Tested
 Physical Dimensions See outline (FIGURE 1)
 Weigh1 1.8 lbs.(820 grams)
 Mounting Any position, Vertical Preferred

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