How to identify the generator set industry \"Xiao Mala big car \" \"set, refurbished \"

generalDiesel generatorsThe group is mainly divided into four parts: diesel engines, generators, control systems, accessories.
1, diesel engine
Diesel engine is a power output part of the entire unit, accounting for 70% of the cost of diesel generator sets, and some poor manufacturers prefer to fake.
1.1 set of mockup
At present, the well-known diesel engine in the market has almost all imitation manufacturers. Some manufacturers use these shapes of imitation machines to pretend to be MING cards. It uses fake nameplates, truth numbers, print fake factory materials, etc., with false chaos, reaching costs purpose. To distinguish the kit, it is not a professional person.
1.2 refurbished
Each brand has renovated old machines, not professionals may also be difficult to distinguish.
But there are some flaws, such as paints, especially dead paintings, which are difficult to do with the original factory.
1.3 confused with similar factory name
These manufacturers belong to speculation, do not dare to do sets, refurbishment, just in the name of the factory name and diesel engine, confused with the diesel engine name with the diesel engine name.
For example, some manufacturers use pinyin or homophones and to use the same word to register their own brands, such as a Cummins generator set company, KMS generator set, etc. In fact, there is no association with Cummins engine, just registered a generator The name of the company, and the\"Cummins \" trademark has no wire relationship, and the generator sets of various miscellaneous diesel engines purchased back, and the generator sets of the various miscellaneous diesel engines are all called a certain Cummins generator set.
1.4 small mala truck
Confused the relationship between KVA and KW. Use KVA as KW exaggerated power and sell it to customers. In fact, KVA is on power, KW is effective power, and the relationship between them is 1kva = 0.8kW. Import units generally use KVA to represent power units, and domestic electric equipment generally use KW, so the kVA should be hit 8 folded into KW when accounting power.
Do not talk about the relationship between the long line (rated) power and the spare power, only one \"power \", put the alternate power as a long line power to the customer. In fact, the backup power = 1.1X long row (rated) power. Moreover, the backup power can only be used for 1 hour in continuous operation of 12 hours.
2, generator part
The function of the generator is to convert the power of the diesel engine into electrical energy, directly related to the quality and stability of the output power.
2.1 Stator coil
The stator coil is originally used in all copper lines, but with the improvement of the line technology, the copper-clad aluminum core line appears. Different from the copper-plated aluminum wire, the copper-clad aluminum core wire is made of copper-clad aluminum and copper-plated thickness when the special mold is formed. Generator stator coils use copper-clad aluminum core wire in performance, but only more service life is more shorter than all copper line stator coils.
2.2 Excitation
Generator excitation is divided into phase complement and brushless self-excited magnetic. Brushless and self-excited magnets have become mainstream, but there are still some manufacturers to consider the cost of retrofit-type generators within 300kW.
3, control system
Ordinary standard units need to be artificially reversed, starting from power-on to diesel generator sets, usually takes 10 to 30 minutes.
Diesel generator set automation control is divided into semi-automatic and automatic unattended. The half automatically starts automatically when the generator set is powered off, and the call is automatically stopped, saving the time of starting the downtime, but still needs to be artificially reversed. Automatic unattended control screen in Zhengti dynasties, loads the ATS dual power switch switch, automatically detects the city's electric signal, automatically switch, and control the automatic start and stop of the generator set, realize the automatic unattended operation, switch time 3-7 seconds adjustable.
Hospitals, military, fire protection and other timely delivery places, must be equipped with automatic control screen.
The well-known brand controller has the following brands:
DSE: British deep sea controller;
Komai: Original imported Czech controller;
Kai Xun, Hong Kong Kaixun, Guangzhou production
Zhi Zhi, Zhengzhou, Henan Province.
Instrumentation, fuse is engaged in the dynamics of well-known brands, such as Siemens, Kangli, Omron.
4, accessory
Regular diesel generator set attached to the finishing tank, fuel tank, chassis, battery, battery wire, muffler, shock absorber, air filter, diesel filter, oil filter, bellows, connection flange, tubing composition. Accessories can also have a lot of fake parts.