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SX440 AVR Stamford (Original) General Description / Specifications SX440 is a half-wave phase-controlled thyristor type Automatic Voltage Regulator (AVR) and forms part of the excitation system for a brush-less generator. In addition to regulating the generator voltage, the AVR circuitry includes under-speed and sensing loss protection features. Excitation power is derived directly from the generator terminals. Positive voltage build up from residual levels is ensured by the use of efficient semiconductors in the power circuitry of the AVR.The AVR is linked with the main stator windings and the exciter field windings to provide closed loop control of the output voltage with load regulation of +/- 1.5%. In addition to being powered from the main stator, the AVR also derives a sample voltage from the output windings for voltage control purposes. In response to this sample voltage, the AVR controls the power fed to the exciter field, and hence the main field, to maintain the machine output voltage within the specified limits, compensating for load, speed, temperature and power factor of the generator. A frequency measuring circuit continually monitors the generator output and provides output under-speed protection of the excitation system, by reducing the output voltage proportionally with speed below a pre-settable threshold. A manual adjustment is provided for factory setting of the under frequency roll off point, (UFRO).This can easily be changed to 50 or 60 Hz in the field by pushon link selection. Provision is made for the connection of a remote voltage trimmer, allowing the user fine control of the generator's output. General Characteristics�� INPUT ��� > Voltage Jumper selectable 95-132V ac or 190-264V ac ��� > Frequency 50-60 Hz nominal ��� > Phase 1 OUTPUT ��� > Voltage max 90V dc at 207V ac input ��� > Current continuous 4 A dc Intermittent 6 A for 10 secs ��� > Resistance 15 ohms minimum REGULATION ��� > +/- 1.5% THERMAL DRIFT ��� > 0.05% per deg. C change in AVR ambient TYPICAL SYSTEM RESPONSE ��� > AVR response 20 ms ��� > Filed current to 90% 80 ms ��� > Machine Volts to 97% 300 ms EXTERNAL VOLTAGE ADJUSTMENT ��� > +/-10% with 1 k ohm 1 watt trimmer UNDER FREQUENCY PROTECTION ��� > Set point 95% Hz ��� > Slope 170% down to 30 Hz UNIT POWER DISSIPATION ��� > 10 watts maximum BUILD UP VOLTAGE ��� > 4 Volts @ AVR terminals ENVIRONMENTAL ��� > Vibration 20-100 Hz 50mm/sec ��� > 100Hz � 2kHz 3.3g ��� > Operating temperature -40 to +70�C ��� > Relative Humidity 0-70�C 95% (see note 5) ��� > Storage temperature -55 to +80�C NOTES 1. With 4% engine governing 2. After 10 minutes. 3. Applies to Mod status F onwards. Generator de-rate may apply. Check with factory. 4. Factory set, semi-sealed, jumper selectable 5. Non condensing. Standard Applications Stamford Alternator BC16, BC18, UC22, �UC27 InGENERAL POWERwe�understand�the urgency of your�requirements for emergency and back up generators, and we have committed by establishing automatic voltage regulator stock of 500+ units in Miami Florida generator stock of 300+ units in Miami Florida currently serving: Pay Mode Terms: L/C (Letter of Credit), T/T (Bank Transfer), D/P, D/A, Other Additional Information: Minimum Order Quantity: 1 Piece Rs 6, 800 / Piece
Alternator Terminal We have been serving our clients with one of the most exclusive quality materials in the market since past several years and have now gained enough expertise in the line of work of manufacture, supply, distribution, trade and retail of several supreme quality industrial motor parts and equipments. Our product range also includes these alternator terminals. Features: Desirable functionality Supreme performance Hassle free working Easily affordable Easy installation Additional Information: Minimum Order Quantity: 2 Piece Rs 260 / Piece
Generator Alternator Spare Parts Leveraging over the skills of our qualified team of professionals, we are instrumental in trading, exporting and retailing Panel Board. This product is extensively used in various places for managing the power supply in industrial operations, building and other places. AVR Card Product Details: Minimum Order Quantity 1 Number Condition New Output Type Variable SUITABLE FOR ALL MAKES GENERATOR AND RANG: 5K VA TO 125KVA Rs 950 / Number
Voltage Suppressor Product Details: Minimum Order Quantity 2 Piece Phase Single Phase With our vast knowledge and experience, we are engaged in manufacturing, supplying, trading and exporting a wide range of Voltage Suppressor. These products are easy to adjust and can be detached as and when needed. Our products are dimensionally stable and ensure longer operational life. These products are sturdily constructed and offer reliable output. Features: Easy installation Efficient working Light weight Rs 105 / Piece
Power Surge Suppressor We are engaged in manufacturing, supplying, trading and exporting a quality range of Power Surge Suppressor. These products are finely designed by the experts and ensure long lasing service life. Our products are bought by the reliable vendors of the industry that ensure their durability and high performance. Features: Easy to install Fine quality Easy to maintain Additional Information: Minimum Order Quantity: 2 Piece Rs 110 / Piece
Generator Diodes We are one of the leading companies that manufacture, supply, trade and export a quality range of Generator Diodes to fulfil the demands of our customers. Our products are well known for their attributes such as high mechanical strength, smooth functioning, durability and optimum output. Features: Accurate results High tensile strength Excellent performance Additional Information: Minimum Order Quantity: 6 Piece Rs 30 / Piece
Alternator Terminal Plate We are engaged in manufacturing, supplying, trading and exporting a wide range of Alternator Terminal Plate. These products are well designed and are bought by the trustable vendors of the industry that knows every minute detail of the present marketing condition. Features: Accurate dimension Long functional life Reliable Additional Information: Minimum Order Quantity: 2 Piece Rs 300 / Piece
Generator RR Assembly Kirloskar Product Details: Minimum Order Quantity 1 Piece Phase Three Phase We are engaged in manufacturing, supplying, trading and exporting these products. These products are easy to operate and needs low power consumption. Our products are well equipped and are highly demanded by our clients. We are offering these products at market-leading rates. Features: High performance Most reasonable prices Effectiveness Rs 2, 450 / Piece
KIRLOSKAR AVR Product Details: Minimum Order Quantity 1 Number Condition New Phase Three Phase SUITABLE FOR 5KVA TO 125KVA DG SET Rs 1, 200 / Number