Ortlinghaus motor Germany Ortlinghaus model Ortlinghaus price

Ortlinghaus motors refer to electric motors with a rated voltage above 1000V. Commonly used voltages are 6000V and 10000V; due to differences in foreign power grids, there are also voltage levels of 3300V and 6600V. High-voltage motors were developed because motor power is proportional to the product of voltage and current. Therefore, when the power of low-voltage motors increases to a certain extent (such as 300KW/380V), the current is limited by the allowable carrying capacity of the wires, making it difficult to increase further or resulting in excessive costs. High power output must be achieved by increasing the voltage. The advantages of high-voltage motors are high power and strong shock resistance; the disadvantages are high inertia, making starting and braking difficult.

Ortlinghaus motor mechanical characteristics

Motor control issues. Permanent magnet synchronous motors do not require external energy to maintain their magnetic field, but this also makes it extremely difficult to adjust and control the magnetic field from the outside. However, with the development of power electronic devices such as MOSFET and IGBT and control technologies, most permanent magnet synchronous motors in application can operate with only armature control without field control. Design requires combining three new technologies: permanent magnet materials, power electronic devices, and microcomputer control, enabling permanent magnet synchronous motors to operate under new working conditions. In addition, permanent magnet AC servo systems using permanent magnet synchronous motors as actuators involve systems with certain nonlinearity, strong coupling, and time-variance, while the servo objects also exhibit strong uncertainty and nonlinearity. Furthermore, system operation is susceptible to varying degrees of interference. Therefore, adopting advanced control strategies and advanced control system implementation methods (such as DSP-based control) to improve the overall intelligence and digitalization level of the system should be a major breakthrough in the current development of high-performance permanent magnet synchronous motor servo systems.

Ortlinghaus motor fault analysis

The oil pressure in the motor fuel system has a direct impact on the mixture concentration, so the fuel pressure should be checked first. The method is to connect a fuel pressure gauge into the fuel line, then start the engine and measure the fuel pressure. If the fuel pressure is too high, the pressure regulator should be replaced; if the pressure is too low, pinch the return hose. If the fuel pressure rises to the normal value, it indicates that the fuel pressure regulator is damaged; otherwise, check the fuel pump and fuel filter. After shutdown, check that the fuel pressure remains at the specified value of 5min; otherwise, it indicates injector leakage, leading to an overly rich mixture. When starting is difficult, the fuel pump is generally working normally; the problem is often a clogged pump strainer preventing the pump from sucking in sufficient fuel, or a blocked fuel filter causing insufficient pressure in the fuel supply system. Some vehicle models are equipped with a cold start injector, which enriches the mixture during cold starts to improve cold start performance. The cold start injector is controlled by the start switch and a thermotime switch; the injection duration depends on the current in the heating coil of the thermotime switch and the coolant temperature. Cold start system faults mostly manifest as: the cold start injector being clogged with gum, affecting spray atomization quality and causing difficult cold starts; failure of the cold start injector preventing normal operation; short circuit (contacts normally closed) or open circuit (normally open) of the thermotime switch. If the contacts are normally closed, the thermotime switch continues to control the cold start injector to inject excess fuel even when the engine is warm, causing difficult hot starts. If the thermotime switch is shorted, the cold start injector cannot operate at all, causing difficult cold starts.

Ortlinghaus motor applications

The most widely used motors are AC asynchronous motors (also known as induction motors). They are easy to use, reliable, inexpensive, and robust in structure, but have a low power factor and difficult speed regulation. Large-capacity, low-speed prime movers commonly use synchronous motors. Synchronous motors not only have a high power factor, but their speed is independent of load size and determined solely by the grid frequency, offering stable operation. DC motors are often used in applications requiring wide-range speed regulation. However, they have commutators, complex structures, high prices, difficult maintenance, and are unsuitable for harsh environments. Since the 20s in the 70s, with the development of power electronics technology, AC motor speed control technology has gradually matured, equipment prices have decreased, and applications have begun to expand. The maximum output mechanical power that a motor can handle under a specified duty cycle (continuous, short-time, intermittent periodic) without causing overheating is called its rated power; attention must be paid to the ratings on the nameplate during use. During operation, ensure that the load characteristics match the motor characteristics to avoid overspeeding or stalling. Motors provide a wide power range, from milliwatts to tens of thousands of kilowatts. Motor use and control are very convenient, featuring self-starting, acceleration, braking, reversal, and holding capabilities to meet various operational requirements. Motors have high efficiency, produce no smoke or odor, do not pollute the environment, and generate low noise. Due to these advantages, they are widely used in industrial and agricultural production, transportation, national defense, commerce, household appliances, and medical electrical equipment. Generally, when a motor's speed is regulated, its output power varies with the speed.

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