During the operation of the unit, there are air duct mufflers. Rated speed of internal combustion engine: 1500rpm, equipped with electronic speed regulating and stabilizing device, equipped with manual parking lever. The bidding document shall list the noise, vibration, overload capacity, operation load and other parameters of the unit during operation, and meet the requirements of corresponding standards and specifications. The bidding documents shall specify the general rated power, rated speed, working conditions and corresponding lubricating oil consumption. The bidder shall provide fuel consumption table under full load, 3 / 4 load and 1 / 2 load. The requirements of fouling coefficient, pH value and impurity content of exhaust pipe muffler of circulating cooling water shall be listed in the tender document. Generator set: brushless excitation synchronous generator set with power factor of 0.8 is adopted. Connection mode: three phase four wire system, Y-shaped connection, neutral point directly grounded. Insulation grade: H grade. Protection layer: IP22 (nema1) standard output voltage: 400 V, 50 Hz. Pressure regulation mode: automatic a.v.r. Control panel and main output circuit breaker cabinet: control panel: single chip microcomputer controller is used to realize the overall control of the unit. Large screen high-resolution LCD screen displays Chinese menu, fault and operation information. The main functions are as follows: Field Manual, automatic control and three remote functions; necessary instrument display of voltage, current, frequency, power, power factor, engine speed, oil pressure, coolant temperature, fuel level, etc. Automatic monitoring unit operation status and automatic fault protection function; automatic timing, fault alarm, accident record, shutdown protection function; automatic loading, automatic voltage regulation, frequency regulation, automatic unloading and shutdown function; automatic preheating of unit cooling water, automatic charging / testing of storage battery, making the unit in hot standby state; reliable disconnection The electric capacity can effectively cut off the load when the unit is overloaded or short circuited; when the load is started, when the output voltage of muffler exhaust pipe is ≤ 85% of the rated output voltage, the unit shall be shut down for protection.