... A heater, separate from the air conditioner unit, a humidifier, and intercom unit are also included. INVENTORY System Line ... None AC-181600-100 ...

A system is described for power conditioning a line of supply of AC power from an AC source to an AC load, comprising: a first array of static power switches mounted across one AC source and AC load; a second array of static power switches coupled in series with the ...

... USACDC AC NO. NOT AVAILABLE INITIAL PRODUCTION TEST OF AIR CONDITIONER, TRAILER MOUNTED, 18,000 BTU/HR, ELECTRIC ...

... aC L. 10 ... Air Conditioner Requirements Review ... What Other Comments Regarding the System, Its operation, Air Conditioning, Heating, Or Collective ...

Examples are given showing the propagation of voltage and current surges in low-voltage wiring systems. The difference between surge impedance (characteristic impedance) of a transmission line and the impedance to the surge of wire runs is pointed out and illustrated. A comparison is made between the propagation of a surge through an isolating transformer and a ferro-resonant ...

ACS, American Chemical Society. ACS, atmosphere control system ...... WSB, water spray boiler. WSC, wide-band signal conditioner ...

conditioner: (1) Run the air conditioner when the temperature is over 78 . (2) Do not run the air conditioner . (This reduces demand when the power company is heavily loaded.) (3) Never run the air conditioner the temperature is 79 and the line voltage is low. Rule (1) says to run the air ...

The electrical output (power, current, and voltage) of flat-plate solar arrays changes constantly, due primarily to changes in cell temperature and irradiance level. As a result, array loads such as dc-to-ac power conditioners must be capable of accommoda...

The tests described in this report were performed to demonstrate the functional suitability of the test item as specified in the following documents; MERADCOM Purchase Description, EED 76022701, for AC-DC Section of 15 kW General Purpose Conditioner, date...

... air-cooling function of the air-conditioning system is ... An air conditioner that is capable of supplying a ... ohm multimeters; one differential ac-dc vacuum ...

Conceptual design of a new family of power conditioners for intermediate-size solar-photovoltaic applications is covered. The identification of ac and dc interface requirements, review and evaluation of existing power conditioning equipment, selection of a baseline design, and investigation of alternative power conditioning concepts are discussed. ...

It is generally accepted that {open_quotes}the right way{close_quotes} to specify an air conditioning system is to calculate the loads and select a piece of equipment that will provide comfort to the customer in a wide variety of conditions. Unfortunately this is rarely practiced. This article describes how to size air conditioners. Topics include the following: selecting the ...

This report covers effort under Contract DAAK70-77-C-0035 to further develop the ac-to-dc section or converter portion of a 15 kW general purpose power conditioner or frequency changer. Previous Delco effort under Contract DAAK02-72-C-0210 had provided a ...

This report discusses the use and performance of line conditioners and uninterruptible power supplies (UPSs). The devices studied are for use on single-phase, 120-V rms, 60-Hz service for maximum loads between 400 and 550 VA. Data are presented for both dynamic and static line and load regulation, turn-on and turn-off behavior, and ...

inches to 4 inches high r A replaceable air conditioner filter large enough to cover the box r A wooden small objects to the inside bottom of the cardboard box. 2. Mark the sides of the air conditioner filter at 1/2-inch intervals as shown in the "Air Conditioner Filter Grid" drawing. Label the horizontal lines

Conceptual design of a new family of power conditioners for residential and intermediate size solar photovoltaic applications is covered. The identification of ac and dc interface requirements, review and evaluation of existing power conditioning equipment, selection of a baseline design, and investigation of alternative power conditioning concepts are ...

In a utility-interactive photovoltaic system, the electrical characteristics of the dc-to-ac power-conditioning unit (inverter) influence the quantity of electrical energy delivered by the system, and therefore, affect the user worth of the system. An ana...

... 1. AC equipment of less than 100 tons ... (2) the unitary air-conditioner, which employs ... buildings are cooled by unitary air-conditioning units, including ...

Device detects interruption of ground connection in three-wire electrical equipment and shuts off ac

... entirely by a suitable ac operated dc supply, provided adequate insulation to ground or ac line is maintained. ... Galvanometer with Capacitor: ...

... to supply the reference voltage line if all DC power supplies within the ... on Surprise Package aircraft (A/C 490) and on standard Gunship aircraft (A/C ...

This paper describes a technology procurement conducted by DOE, PNNL, and the Defense Logistics Agency to increase the availability of energy-efficient, packaged, unitary ''rooftop'' air conditioners. The procurement encourages air conditioner manufacturers to produce equipment that exceeds federal energy efficiency ...

Current research is being conducted to provide information which will be used to improve the existing industry standards for proper installation of orifice meters. The research includes experimental investigation of a Zanker, an etoile, and several tube bundle flow conditioners at various positions relative to the orifice plate. Also included are the effects of pressure tap ...

...to be connected to the public utility (AC) power line, the radio frequency voltage that is conducted back onto the AC power line on any frequency or frequencies...operation and which do not operate from the AC power lines or contain provisions for...

...to be connected to the public utility (AC) power line, the radio frequency voltage that is conducted back onto the AC power line on any frequency or frequencies...to be connected to the public utility (AC) power line, the radio frequency...

This paper describes the development of ac and dc interface specifications and array voltage trade-off studies leading to a conceptual design of a central station rated (1-10 MW) photovoltaic power conversion system (PCS). The ac interface specifications are based on utility practices and standards, modified by the unique characteristics of the ...

This patent describes a static converter system operating between opposite ones of respective AC and DC buses. It comprises: at least three rectifier bridges connected in parallel to the DC buses, each rectifier bridge having three AC lines connected to the middle point of two rectifier devices in series between the two DC buses, the ...

... Title : High Voltage AC Power Transmission Lines and Communications Receiver Sites. Descriptive Note : Technical rept. May 75-Mar 76,. ...

... loadj. Load (j) into AC. 3 load *j. (Load indirect) Load ((j)) into AC. store J. Store (AC) into r(j). store *j. (Store indirect) Store (AC) into register r((j)). 1 ...

This article is about the check-up of the constructed and repaired hyperbaric chamber and attached equipment. The auther proposes guidelines for checking hyperbaric chamber body and pressure container, AC 380 V electric circuit, AC or DC 220 V below electric circuit system and instrument, mechanic equipment and piping system, ...

Components of the system were built and tested based on payloads containing tansistor power amplifiers (TPA) and traveling wave tubes (TWT). A dc/ac square wave inverter supplying two TPA power supplies, an electronic power conditioner for a 150 W TWT, an...

The Cromer cycle uses a desiccant to move moisture from the saturated air leaving an air conditioning (AC) cooling coil to the air returning to the AC unit from the conditioned space. This has the thermodynamic effect of reducing the overall energy consumption of the AC unit and also has the side benefit of dramatically increasing the ...

The authors performed 3 experiments to measure temporal variation in airborne bacterial and fungal levels associated with the use of air conditioners (ACs), heaters, and humidifiers. The concentrations of bioaerosols that they measured inside vehicles and a seminar room prior to use of an AC were lower than or similar to those for ...

Feedthrough of interference from the AC power line into accelerator components is a problem which in pulsed accelerators can be reduced by operation synchronous with the AC line. This means of avoiding line-frequency effects is ineffective for continuous ...

Concepts of maximum power transfer of dc systems and associated ac voltage variations, particularly at inverter stations having low short-circuit ratios, have been extended to include various ac load models and an ac line in parallel with the dc line. The operating capabilities are shown to ...

The system described provides protection for phase sensitive loads from being or remaining connected to ac power lines whenever a phase reversal occurs. It comprises a solid state phase detection circuit, a dc power relay circuit, an ac-to-dc converter fo...

...705 MHz and which do not operate from the AC power lines or contain provisions for operation while connected to the AC power lines. Digital devices that include...provision for the use of, battery eliminators, AC adaptors or battery chargers which...

Concerns over process disruptions in sensitive load centers, such as semiconductor processing plants, caused by short duration electrical disturbances have prompted development of power line conditioners to supply high quality electric power. Recently, a pulse width modulated power converter suitable for three phase power line ...

The objective of this project is to conduct joint research and development activities related to certain electric power applications of high-temperature superconductivity (HTS). The new superconductors may allow development of an energy-efficient switch to control current to variable speed motors, superconducting magnetic energy storage (SMES) systems, and other power conversion equipment. Motor ...