Motor Single-Phasing Voltage Unbalance
... each year confirms the fact that worn motor starter contacts are the most common cause of single-phasing. Wear and tear of the starter contacts can cause contacts to burn open, or develop very high contact resistance, resulting in single-phasing. This is most likely to occur on automatically started ...
... each year confirms the fact that worn motor starter contacts are the most common cause of single-phasing. Wear and tear of the starter contacts can cause contacts to burn open, or develop very high contact resistance, resulting in single-phasing. This is most likely to occur on automatically started ...
Modifying the surface electronic properties of YBa Cu O
... dI /dV − φeff modification described above, we find that this effect occurs for both etched and unetched samples. To further elucidate the two effects, we study their evolution as a function of scan number, i.e. the number of times the tunnelling tip is rastered across a given area. Figure 4(a) show ...
... dI /dV − φeff modification described above, we find that this effect occurs for both etched and unetched samples. To further elucidate the two effects, we study their evolution as a function of scan number, i.e. the number of times the tunnelling tip is rastered across a given area. Figure 4(a) show ...
www .wpiinc.com - World Precision Instruments
... The above warranty is contingent upon normal usage and does not cover products which have been modified without WPI’s approval or which have been subjected to unusual physical or electrical stress or on which the original identification marks have been removed or altered. The above warranty will not ...
... The above warranty is contingent upon normal usage and does not cover products which have been modified without WPI’s approval or which have been subjected to unusual physical or electrical stress or on which the original identification marks have been removed or altered. The above warranty will not ...
SAM Series Power Inverters SAM-1000-12 SAM-1500-12 SAM
... battery. Connect Positive of the battery to the Positive input connector of the inverter and the Negative of the battery to the Negative input terminal of the inverter. Reverse polarity connection will result in a blown fuse and may cause permanent damage to the inverter. Damage due to reverse polar ...
... battery. Connect Positive of the battery to the Positive input connector of the inverter and the Negative of the battery to the Negative input terminal of the inverter. Reverse polarity connection will result in a blown fuse and may cause permanent damage to the inverter. Damage due to reverse polar ...
GE Control Catalog - Section 3: Lighting Contactors
... Replace * in the product number with the appropriate digits from the Coil Voltage table. The resulting product number will be for an assembled contactor with no additional auxiliary contacts, pilot devices, pilot lights, control circuit fuses or CPTs. There is no list price adder for Coil Selection. ...
... Replace * in the product number with the appropriate digits from the Coil Voltage table. The resulting product number will be for an assembled contactor with no additional auxiliary contacts, pilot devices, pilot lights, control circuit fuses or CPTs. There is no list price adder for Coil Selection. ...
LTC1348 - 3.3V/5V Low Power RS232 3-Driver/5
... low as 2.2V. The charge pump requires three external flying capacitors to operate; 0.1µF ceramic capacitors are adequate for most applications. For applications requiring extremely high data rates or abnormally heavy output loads, 0.33µF flying capacitors are recommended. Bypass and output capacitor ...
... low as 2.2V. The charge pump requires three external flying capacitors to operate; 0.1µF ceramic capacitors are adequate for most applications. For applications requiring extremely high data rates or abnormally heavy output loads, 0.33µF flying capacitors are recommended. Bypass and output capacitor ...
PAK MKII - PAK | Mueller
... supported by powerful digital circuitry and data handling capabilities. This enables the PAK MKII to achieve high-speed data acquisition with the highest analog and digital signal quality, translating into a high dynamic range with low noise performance and distortion. Apart from regularly scheduled ...
... supported by powerful digital circuitry and data handling capabilities. This enables the PAK MKII to achieve high-speed data acquisition with the highest analog and digital signal quality, translating into a high dynamic range with low noise performance and distortion. Apart from regularly scheduled ...
- Pcpolytechnic
... the V by 900 since the main winding is highly inductive. The current flowing through the starting winding (Ist) is almost in phase with the supply voltage V as this winding is resistive. The fluxes produced due to these currents will be placed 900 with respect each other. And the resultant of th ...
... the V by 900 since the main winding is highly inductive. The current flowing through the starting winding (Ist) is almost in phase with the supply voltage V as this winding is resistive. The fluxes produced due to these currents will be placed 900 with respect each other. And the resultant of th ...
- Steelpumps
... Wiring to the amber light from a 2 way float switch can be reversed if desired to produce a high level warning function instead of low level. ...
... Wiring to the amber light from a 2 way float switch can be reversed if desired to produce a high level warning function instead of low level. ...
ltc1871ems-1-trpbf中文资料
... The nominal operating frequency of the LTC1871-1 is programmed using a resistor from the FREQ pin to ground and can be controlled over a 50kHz to 1000kHz range. In addition, the internal oscillator can be synchronized to an external clock applied to the MODE/SYNC pin and can be locked to a frequency ...
... The nominal operating frequency of the LTC1871-1 is programmed using a resistor from the FREQ pin to ground and can be controlled over a 50kHz to 1000kHz range. In addition, the internal oscillator can be synchronized to an external clock applied to the MODE/SYNC pin and can be locked to a frequency ...
Power Systems Lab Manual - Electrical and Computer Engineering
... to take it (of course with permission and always reference the source), and state its role, as you understand it at this stage in your study, in operation and protection of power systems. State the approximate physical size and the electric ratings in terms of voltage, current, power, kVA etc. These ...
... to take it (of course with permission and always reference the source), and state its role, as you understand it at this stage in your study, in operation and protection of power systems. State the approximate physical size and the electric ratings in terms of voltage, current, power, kVA etc. These ...
AN113 - Power Conversion, Measurement and Pulse Circuits
... the RC at the VC pin provides frequency compensation. The 100k path from L1 bootstraps Q1’s gate drive to about 10V, ensuring saturation.3 The output connected 300Ω-diode combination provides short-circuit protection by shutting down the LT1172 if the output is accidentally grounded. Figure 12 shows ...
... the RC at the VC pin provides frequency compensation. The 100k path from L1 bootstraps Q1’s gate drive to about 10V, ensuring saturation.3 The output connected 300Ω-diode combination provides short-circuit protection by shutting down the LT1172 if the output is accidentally grounded. Figure 12 shows ...
DEFLECTION The beam is moved around the screen by magnetic
... than a standard dot mask. Because the mask is a single piece, it doesn't need horizontal wires to hold a grille in place. Slot mask is measured as stripe pitch, but the pitch is measured at the mask, not the phosphors. All other masks measure the phosphors. The mask holes will always be tighter toge ...
... than a standard dot mask. Because the mask is a single piece, it doesn't need horizontal wires to hold a grille in place. Slot mask is measured as stripe pitch, but the pitch is measured at the mask, not the phosphors. All other masks measure the phosphors. The mask holes will always be tighter toge ...
Installation Guide
... undamaged and conductors free from dirt and corrosion. • Control cables should be of a suitable shielded type and not fixed in proximity to high voltage power cables or other sources of electromagnetic interference. • When connecting KKDC products always observe the correct polarity (+/-). Failure ...
... undamaged and conductors free from dirt and corrosion. • Control cables should be of a suitable shielded type and not fixed in proximity to high voltage power cables or other sources of electromagnetic interference. • When connecting KKDC products always observe the correct polarity (+/-). Failure ...
PDF
... improve the circuit performance having wide fanin[3]. Using a keeper transistor helps to address the problems of leakage and charge sharing but increases power dissipation. So sizing the keeper transistor helps to overcome the problem but then tradeoff occurs between reliability and performance. A. ...
... improve the circuit performance having wide fanin[3]. Using a keeper transistor helps to address the problems of leakage and charge sharing but increases power dissipation. So sizing the keeper transistor helps to overcome the problem but then tradeoff occurs between reliability and performance. A. ...
Industry's Smallest 1.55A 1-Cell Li+ DC-DC Charger General Description Benefits and Features
... The MAX8971 is a compact, high-frequency, highefficiency switch-mode charger for a one-cell lithium-ion (Li+) battery. It delivers up to 1.55A of current to the battery from inputs up to 7.5V and withstands transient inputs up to 22V. The 4MHz switch-mode charger is ideally suited for small portable ...
... The MAX8971 is a compact, high-frequency, highefficiency switch-mode charger for a one-cell lithium-ion (Li+) battery. It delivers up to 1.55A of current to the battery from inputs up to 7.5V and withstands transient inputs up to 22V. The 4MHz switch-mode charger is ideally suited for small portable ...
Courtesy of www.mcmaster.com
... Lamp Features and Specifications Lamp Life – Average lifetime (usually in hours) of the lamp Wattage – Electrical Power that the Lamp consumes (Unit: Watts - duh!) Voltage – Rated Voltage to be used at. Usually incandescent/halogen lamps can run on either AC or DC. Do NOT Exceed the rated volta ...
... Lamp Features and Specifications Lamp Life – Average lifetime (usually in hours) of the lamp Wattage – Electrical Power that the Lamp consumes (Unit: Watts - duh!) Voltage – Rated Voltage to be used at. Usually incandescent/halogen lamps can run on either AC or DC. Do NOT Exceed the rated volta ...
PVD 3484 GB - SSD Parvex
... Directive 89/336/EEC as amended by Directive 93/68/EEC on electromagnetic compatibility as well as under the Electrical Safety Directive of Low Voltage Directive 73/23/EEC amended by Directive no. 93/68/EEC. The European Directive concerning electromagnetic compatibility refers to the harmonised gen ...
... Directive 89/336/EEC as amended by Directive 93/68/EEC on electromagnetic compatibility as well as under the Electrical Safety Directive of Low Voltage Directive 73/23/EEC amended by Directive no. 93/68/EEC. The European Directive concerning electromagnetic compatibility refers to the harmonised gen ...
FT2ER - TestMart
... at each terminal end. The circuit packs provide four transmit and receive DS1ports for metallic connection to DSX-1and/or customer equipment. The four T1metallic inputs are multiplexed and output to a 1300nm fiber optic channel. The input from the fiber optic channel is demultiplexed and output to t ...
... at each terminal end. The circuit packs provide four transmit and receive DS1ports for metallic connection to DSX-1and/or customer equipment. The four T1metallic inputs are multiplexed and output to a 1300nm fiber optic channel. The input from the fiber optic channel is demultiplexed and output to t ...
closed-form solution of a three-phase voltage
... speed control of three-phase induction motors from a DC supply. By controlling the switching elements in the voltage-source inverter the applied voltage to the induction motor can be controlled. A lot of attention was given to voltage-source inverters, control of three-phase induction motors and vol ...
... speed control of three-phase induction motors from a DC supply. By controlling the switching elements in the voltage-source inverter the applied voltage to the induction motor can be controlled. A lot of attention was given to voltage-source inverters, control of three-phase induction motors and vol ...
replacing batteries
... For three-phase input, set the input phase selector switch, (see C in diagram) to “3”. For single-phase input, leave the switch in the default position of “1”. Replace the access panel. ...
... For three-phase input, set the input phase selector switch, (see C in diagram) to “3”. For single-phase input, leave the switch in the default position of “1”. Replace the access panel. ...
Mains electricity
Mains electricity is the general-purpose alternating-current (AC) electric power supply. In the US, electric power is referred to by several names including household power, household electricity, house current, powerline, domestic power, wall power, line power, AC power, city power, street power, and grid power.The two principal properties of the electric power supply, voltage and frequency, differ between regions. A voltage of (nominally) 230 V and a frequency of 50 Hz is used in Europe, most of Asia, most of South America and Australia. In North America, the most common combination is 120 V and a frequency of 60 Hz. Other voltages exist, and some countries may have, for example, 230 V but 60 Hz. This is a concern to travelers, since portable appliances designed for one voltage and frequency combination may not operate or may be destroyed by another.The use of different plugs and sockets in different regions provides some protection from accidental use of appliances with incompatible voltage and frequency requirements.