The Integral Spiral Blade Stabilizer is made from AISI 4145H modified alloy steel, and completely meets the requirement of API Spec 7-1 and SY/T5051-91 Standard. It is mainly used to stabilize the drilling tools in the process of drilling hole. It can be separated into Drill String and Near bit types. -
Adoptingthe international advanced voltage regulation technology of sinusoidal energy distribution, jjw/jsw series is a new, precise, ac-purifying voltage stabilizer group that is integrated with voltage regulator, and grid purification function. It has high voltage stabilizing precision ast dynamic response time and small distortion. It also has a strong ability against electromagnetic interference., applicable occasions:, mainly used in computer, precision instrument, measuring instrument, communication radio equipment, automatic control system with higher requirement for power supply quality.
Introducing and absorbing the latest advanced foreign technology, the sbw series three-phase automatic compensate-type voltage stabilizer is designed for stabilizing alternating voltage. In cases of voltage fluctuation caused by load change or surrounding power supply voltage fluctuation, the machine could maintain the stability of output voltage automatically. Compared with other types of voltage stabilizer, sbw series products are more advanced in a larger capacity, higher efficiency and regulate the voltage stably without wave distortion. The rsbw of sbw series has wide scope in load with the ability of enduring transient overload. The high power voltage stabilizer can work continuously and can be switched freely between manual and auto mode. In addition, the stabilizer is equipped with various protection in over-voltage, lack of phase, phase sequence and mechanical fault automatic protection. It is of smaller volume and lighter weight. The sbw series compensate-type voltage stabilizer can be operated reliably with convenient usage and installation.
TECHNICAL SPECIFICATION OF 150KVA THREE PHASE OIL COOLED SERVO VOLTAGE STABILIZER 1. Capacity : 150KVA Three Phase 2. Model : Make SERVOSINE 3. Input Voltage Range : 190V-270V 1Phase / 340V-470V 3 Phase 4. Output Voltage : 230V +/-1% 1 PH / 400V +/-1% 3 PH 5. No. of phases : Three, 4 Wire 6. Line Frequency : 47-53Hz. 7. Output Voltage Regulation : +1% 8. Type of Cooling : Oil Cooled 9. Type : Unbalanced supply and Load conditions 10. Efficiency :> 98% 11. Speed of Correction : 30V per sec (For 3 Phase) 12. Wave form distortion : Nil 13. Effect of Load power factor : Nil, Suitable for all power factors 14. Ambient Temperature : 0-65�ºC with RH 90% 15. Duty Cycle : Continuous 16. Indications on each phase : Input Mains, Input Low, Input Voltage, Input High, Out Voltage. 17. Controls on each Phase : Auto/Manual Push Button, Increase/Decrease Push Button Voltâ??s adjuster Set Button 18. Metering : Digital 19. Mounting : On Wheel 20. Construction : MS Sheet Body, Prime Grade Powder Coating 21. Spares Availability : Available with Company 22. Transformer Winding : Prime Grade Copper Wire on CRGO Core 23. Servicing & Maintenance : Easley can be do by any technical known Person And from company side on call log.
TECHNICAL SPECIFICATION OF 100KVA THREE PHASE OIL COOLED SERVO VOLTAGE STABILIZER 1. Capacity : 100KVA Three Phase 2. Model : Make SERVOSINE 3. Input Voltage Range : 190V-270V 1Phase / 340V-470V 3 Phase 4. Output Voltage : 230V +/-1% 1 PH / 400V +/-1% 3 PH 5. No. of phases : Three, 4 Wire 6. Line Frequency : 47-53Hz. 7. Output Voltage Regulation : +1% 8. Type of Cooling : Oil Cooled 9. Type : Unbalanced supply and Load conditions 10. Efficiency :> 98% 11. Speed of Correction : 30V per sec (For 3 Phase) 12. Wave form distortion : Nil 13. Effect of Load power factor : Nil, Suitable for all power factors 14. Ambient Temperature : 0-65C with RH 90% 15. Duty Cycle : Continuous 16. Indications on each phase : Input Mains, Input Low, Input Voltage, Input High, Out Voltage. 17. Controls on each Phase : Auto/Manual Push Button, Increase/Decrease Push Button Volt adjuster Set Button 18. Metering : Digital 19. Mounting : On Wheel 20. Construction : MS Sheet Body, Prime Grade Powder Coating 21. Spares Availability : Available with Company 22. Transformer Winding : Prime Grade Copper Wire on CRGO Core 23. Servicing & Maintenance : Easley can be do by any technical known Person And from company side on call log.
Technical Specification Of 75kva Three Phase Oil Cooled Servo Voltage Stabilizer 1. Capacity : 75KVA Three Phase 2. Model : Make SERVOSINE 3. Input Voltage Range : 190V-270V 1Phase / 340V-470V 3 Phase 4. Output Voltage : 230V +/-1% 1 PH / 400V +/-1% 3 PH 5. No. of phases : Three, 4 Wire 6. Line Frequency : 47-53Hz. 7. Output Voltage Regulation : +1% 8. Type of Cooling : Oil Cooled 9. Type : Unbalanced supply and Load conditions 10. Efficiency :> 98% 11. Speed of Correction : 30V per sec (For 3 Phase) 12. Wave form distortion : Nil 13. Effect of Load power factor : Nil, Suitable for all power factors 14. Ambient Temperature : 0-65�ºC with RH 90% 15. Duty Cycle : Continuous 16. Indications on each phase : Input Mains, Input Low, Input Voltage, Input High, Out Voltage. 17. Controls on each Phase : Auto/Manual Push Button, Increase/Decrease Push Button Voltâ??s adjuster Set Button 18. Metering : Digital 19. Mounting : On Wheel 20. Construction : MS Sheet Body, Prime Grade Powder Coating 21. Spares Availability : Available with Company 22. Transformer Winding : Prime Grade Copper Wire on CRGO Core 23. Servicing & Maintenance : Easley can be do by any technical known Person And from company side on call log.
Voltage stabiliser Capacity - 200 va to 10kva Input range - wide input range starting from 50v. Output voltage - 200v - 240v +/- 2% Protection - fuse or circuit breaker. High/low voltage cutout with time delay also available on demand. As per specification or model.
API 7-1 IB String Stabilizer with Non-magnetic Body Product Description The stabilizer with back reaming is selecting the appropriate location and through special processing method to array few teeth as a cutting edge. In this way, this stabilizer can be played cutting when the process of drilling and pull out. During drilling process, forward and backward redressing can be played the role to repair and maintain the wall of well, making trajectory of borehole as far as possible, more often than not leading to drilling difficulty because of hole shrinkage, and so on, at the moment, the forward and backward redressing of this stabilizer can be played cutting, to eliminate hole shrinkage phenomenon, thus saving time and costs for drilling. Features (1). Sizes and configurations can be manufactured to operators requirements, including blade sizes, connections, and types of material. (2). All stabilizers connections can be configured as box Ã? box, as pin Ã? box, or as the operator requires. (3). Welded straight blade for drilling soft formations. (4). Sleeve type allowing less equipment inventory in remote locations. (5). Integral spiral blade allowing 3600 hole contact for use in hard rock formations. (6). Nonmagnetic stabilizers for applications requiring magnetic isolation.
The svc is made up of controllable reactance, passive filters (fc), and control and protection unit. At present, terms of the principle on which the reactance is adjusted, static var compensators are classified into three types: thyristor-controlled transformer (tcr), thyristor-controlled reactor (tcr), magnetic-controlled reactor (mcr). For their working principle and difference, see í¦svc operating principle Senbao has developed all the three types of static var compensator and launched them on the market successfully. As the only manufacturer in china possessing proprietary intellectual property right of the three types of svc, senbao offers the best performance-to-cost svc solutions and complete set of equipment to fulfill user requirements. Technical specifictations: 1.Rated voltageú¦6íó10íó35kv 2.Rated capacityú¦6~100mvarú¿tcrú¬ú¼ín30 mvarú¿tctú¬ú¼ín30 mvarú¿mcrú¬ 3.Response timeú¦10msú¿tcrú¬ú¼10msú¿tctú¬ú¼300msú¿mcrú¬ 4.Thyristor coolingú¦heat pipe self-cooling plus fans (tcr), heat pipe self-cooling plus fans (tct), self-cooling (mcr) 5. Thyristor triggering: optical fiber plus electro-magnetic (tcr), electro-magnetic (tct), optical fiber (mcr) 6. Controller: all-digital 7. Control modes: voltage, reactive power, power factor, or combination 8. Dynamic regulation: combination of open loop and closed loop control 9. Regulation mode: phase splitting control, compensatiing for unbalanced load 10.Useful life: 10 years 11.Environment: the svc can be made to work normally under user-specific environmental conditions.
SVR automatic feeder voltage regulator is tracking the variation in feeder voltage and changing the turn ratio of the built-in transformer, thus maintaining its output voltage within the permissible range. SVR functions satisfactorily when its input voltage fluctuates within 30% of its rating, ideal for feeder lines with large voltage drops and/or voltage fluctuations. Installed at the medium or receiving end of a feeder, SVR can effectively keep the user voltage at desired level and reduce power loss over the line. Moreover, SVR can also be applied to substations without on-load tap-changer transformers. Installed at the outgoing-line-side in such substations, SVR maintains the outlet bus voltage at specified values. SVR has been patented for its originality (Patent NO 02 2 92527.9) and received certificates as follows: Apr 2004, State Torch Program Project Dec 2004, Patent of Utility Model issued by State Intellectual Property Office(SIPO) Apr 2004, State Strongly Recommended Product 2005 Xiíªan Priority Technology Industrialization Product State Power Grid Corporation Strongly Recommended íºFour New Productí¿ for rural power networks.
The TVR thyristor automatic feeder voltage regulator is used primarily on medium-voltage distribution lines. In TVR, power electronic on-load tap changing switches are employed in place of those used in the SVR feeder voltage regulator, resulting in quicker regulation and more frequent operation, ideal for distribution lines with severe voltage fluctuations and/or longer lines. TVR can maintain the power feeding voltage at desired level, reduce power loss over the line, thus improving power supply quality significantly. 1. Rated voltage: 6kVíó10kVíó 35kV 2ú« Voltage capacity: í_4000kVAú¿6kVú¬ í_8000kVAú¿10kVú¬ í_20000kVAú¿35kVú¬ 3. Rated frequency: 50 Hz 4. Phase number: 3 5ú« Range of voltage regulation: (can be customized for special requirements) 6ú« Operation time of voltage regulator: í_100ms 7ú« Cooling: ONAN
Automatic voltage regulator We are manufacturer of automatic voltage regulator for high quality and low price
UNITROL 1010 is a powerful and compact Indirect Excitation System with built-in dual channel support, advanced load sharing between machines operating in parallel, rotating diode monitoring, automatic synchronizing and several integrated communication options. UNITROL 1010 is the voltage regulator of the UNITROL 1000 family intended for small and medium synchronous generators and industrial machines. This voltage regulator is manufactured using the most advanced microprocessor technology and IGBT semiconductors allowing current output up to 10 ADC for continuous operation. UNITROL 1010 provides high performance in a wide range of temperature and vibration conditions and it is fully certified according DNV and UL standards. UNITROL 1010 has additional features in contrast with legacy versions, as for instance Ethernet, USB, data and event logger and many others. UNITROL 1010 is a compact device and is designed for excitation currents up to 10 A nominal. It supports the same interfaces and has the same mechanical footprint as UNITROL 1020.
Rated AC voltage 380±10% VAC, Frquency 50HZ Max current 63A Over voltage action cut off value >460 ±5VAC Reset voltage value after normal voltage 420-440VAC Under voltage action cut off value
Rated AC voltage 230±10% VAC, Frquency 50-60HZ Rated current( In) 63A Over voltage action cut off value >275 ±5VAC Reset voltage value after normal voltage 240-260VAC Under voltage action cut off value
specifications 1)Input voltage:150V-250V 2)Output voltage:220V¡¨¤3%,110V¡¨¤3% 3)Frequency:50HZ/60HZ 4)Response time:90% 6)Ambient temperature:-10centigrates ~+40centigrates 7)Relative humidity: 5M| Model Outline(L*W*H) Net Weight QTY/package TND-0.5K 19*16*14cm 4kg 4 TND-1K 21*19*17cm 5.5kg 4 TND-1.5K 21*19*17cm 5.8kg 4 TND-2K 29*24*20cm 10kg 2 TND-3K 29*24*25cm 12kg 2 TND-5K 36*22*29cm 15kg 2 TND-7K 36*22*29cm 16.5kg 2 TND-10K 42*24*36cm 27kg 1 TND-15K 42*38*76cm 64kg 1 TND-20K 42*38*76cm 70kg 1 TND-30K 45*43*87cm 95kg 1 TND-5K(vertical) 32*28*46cm 17kg 1 TND-10K(vertical) 36*28*51cm 36kg 1
* product available from 30kva to 5mva capacity with voltage variation options from 350-450v to 250-460v (phase-to-phase) * based on linear technology * 5 year guarantee Variable as per kva ratings.
Appearance Clear liquid Color(pt-co) &161;¨¹40 227;c), g/m3 1.17-1.21 Acid no. &161;¨¹3.0
Alfo electric manufacturer of all kind of automatic / servo controlled voltage stabilizers, air / oil cooled servo voltage stabilizer & aluminum foil transformers /isolation transformers, (range 1 kva to 1000 kva). Alfo servo voltage stabilizer is designed for stabilizing ac voltage and made with advanced technology and on the basis of your country national conditions. It can keep output voltage in steady state automatically when the power voltage fluctuates or the load current varies. Compared with other voltage stabilizers, it has the advantage of large capacity, high efficiency, no wave form distortion, stable voltage adjustment, suitability for kinds of loads, bearing instantaneous overload, working continually for long time, as well as free transferring between manual control and automatic control, etc, besides, it is provided with protection against over-voltage, over current, phase failure and has following merits: small volume, light weight, convenient installation and reliable running and so on. Application (servo stabilizer): Alfo servo stabilizer can be applied to large type electromechanical equipment, metal processing equipment, production line, construction device , elevator, medical equipment, equipment of light and textile industry, air-condition, household appliance and lighting used for industry, agriculture, traffic, military, railroad, scientific culture, etc, where need voltage stabilization. Customized
Place of Origin Jiangsu, China (Mainland) Brand Name KERUI Model Number AS440 Usage Regulating the generator voltage Current Type AC Compatible alternator STAMFORD Phase 2 phase Color Black Weight 300g Stock Yes Packing 14.6cmx11.6cmx4.7cm Price: FOB USD 0~100 / Piece Detailed Product Description 1.AVR AS440 2.Automatic Voltage Regulator 3.For stamford brushless generator 4.ISO9001 CERTIFICATED 5.IN STOCK AVR-AS440, automatic voltage regulator (AVR) Features Be applicable for self excited alternator, brushless generator with the frequency of 50Hz or 60Hz; Adopt Surface Mounting Technology(SMT); With Parallel Operation Function; Under Frequency Roll Off Protection; With Under Frequency LED Indication; Over Excitation Protection. Technical parameters Build Up Voltage 4V ac @ AVR terminals Power Input Voltage 100-264V ac Frequency 50-60Hz (nominal) Sensing Input Voltage 100-130V or 170-264V Jumper Selectable Frequency 50/60Hz Jumper Selectable Output Voltage Max. 82V dc @ 200V ac input Current 4A consecutive current output Transient 7.5A for 10secs. Over Excitation Protection 65V dc (Default Value) Time Delay 10secs Under Frequency Protection 92-94%Hz rated frequency(By factory) (UFRO) Adjustment ¡À1%(with 4% engine governing) Minimum Order Quantity: Negotiable Trial Order Minimum Order Quantity: 1 Piece/PiecesTrial Order Port: Shanghai, CHINA . Packaging Details: Individual packing and standard export cartons Outer packing: 40pcs/carton Measurement of Inner packing:14.6cmx11.6cmx4.7cm Measurement of outer packing:50cmx32cmx25cm.
