Reduction in motor efficiency, overheating and fast ageing of motors and switchgears Stoppage of production, inconsistent product quality and increase in wastage Malfunctioning & data loss in electronic/ cnc equipments Quick burn out of light fittings, bulbs & lamps Higher consumption by lighting load Higher demand & higher energy bill Loss of competitive position Capacity for servo voltage stabilizers -10 kva to 5000 kva
Feature 1. Available for wide range input volage, steady output voltage 2. Input pre-charge circuit 3. Led indicates the working status 4. Smd technology, four-sided, extra strong copper-plated printed circuit board (4x70|¡¡ì¬) 5. High frequency switched power supply, efficiency>95% 6. Low temperature rise 7. Unique filter design 8. Low electromagnetic radiation 9. Smart protect circuits against overheating, over and under input/output voltage 3kg/piece, 310x200x45mm
1.Description: It is lead based compound stabilizer, containing light rare earth compounds, antioxidant, internal and external lubricants, high efficient synergist, etc. Has excellent processing performance. Will not affect the flatness, bright and clean, even thickness of the product when the filling material has a fluctuation. Used in non-transparent products. 2.Advantages: A.Low lead. B.Good compatibility & dispersion with pvc.¡¡ C.Excellent thermal stability & weatherability. D.Good electrical insulation. Good ability of uvioresistant. Good lubricating performance. E.Has wild range application scope. High up the extrusion speed, lower the plasticizing temperature, prolong the production period. 3.Scope of application. In this compound stabilizer series (wwl), we developed 7 items for different products. Details as follow: Item no.Application scope Wwl-1pipes
* 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
Eldee servo voltage stabilizers are available in a wide range and various models. The standard three phase models are suitable for balanced and unbalanced supply and loads.Our voltage stabilizers are available ranging from 1 kva-2000 kva As per required good
Technology parameter dbwsbw compensating ac stabilizer Input voltage One phase 176v-264v three phase 304v-456v Output One phase 220(1-5)% three phase 380v(1-5)% Frequency 50hz/60hz Specification One phase20, 30, 50, 100, 150, 180, 200, 225, 250, 300, 320, 350, 400, 450kva Three phase20, 30, 50, 100, 150, 180, 200, 225, 320, 400, 500, 600, 800, 1000, 1500, 2000kva Insulated electric resistance Effciency 90% Precision (1%-5%)can adjust Insulated strength 2000v, 1 min does not have the puncture Adjust time 1.5s Relative humidity
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
The Proven is a Proven Series Servo controlled stabilizer, that redefines the price performance ratio. Based on programmed logic circuit (PLC) technology. Servotech offers a whole new range of features. » Servotech Servo stabilizer provides perfectly stable output under severe conditions of unbalanced voltage/current, because of its unique conditions single phase or three phase, distortion less solid state motorizes voltage controller conserves variable energy. » No effect by any transient over voltage surge with fast correction speed (20V-55V per second) » Higher Power at lower cost: rating of 10KVA-1000KVA » Output voltage adjustable (110V output can also be provided) » No effect on load power factor & overall efficiency above 96% » Increased life of your equipment reduced heating and minimal losses. » Optional features include surge suppression, Hi/Low voltage cut off, overload protection, single-phase prevention and bypass mechanism. » Testing is computerized there by ensuring higher reliability.
Our products include drill collar, drill pipe, heavy weight drill pipe, stabilizer, subs, hole opener, roller reamer, casing scraper, key seat reamer, kelly valve, full opening safety valve, ft type drop-in check valve, fj type-arrow back pressurevalve, inside bop, float valve sub, by pass valve, cup tester, wear sub, circulating sub, cross over sub, reduce sub, saver sub, lift sub, different of drilling jar, fishing jar, shock absorber, bumper jar, oil jar, bumper sub, jar intensifiers, We also trade for drill bit and BOP, drilling rig......Include nearly all equipment you could see for oilfield drilling work.
Servo stabilizer.
Technical Specification Chart: Parameter 1 - Phase 2 - Phase 3 - Phase Unbalanced Air Cooled 3 - Phase Balanced Oil Cooled 3 - Phase Unbalanced Oil Cooled Energy Conserved Lighting Load Centralized Stabilizer for offices & residence Rating (KVA) 1 - 20 0.5 - 20 3 - 100 3 - 200 3 - 250 3 - 500 3 - 500 I/P Voltage range (V) 170 - 270 195 - 265 340 - 480 240 - 480 340 - 480 360 - 460 310 - 480 340 - 460 360 - 460 340 - 480 360 - 460 310 - 480 340 - 480 360 - 460 310 - 480 340 - 480 360 - 460 O/P Voltage (normal) 230 V 415 V 415 V 415 V 415 V 208 V LN 220 V / 230 V LN Alternate O/P setting 220 V / 240 V 380 V / 400 LL 220 V LN 220 V / 230 V LN O/P V regulation ± 1% of nominal output voltage O/P V Indications Digital voltmeter, accuracy 1% of FS ± 1 digit LED Indications Front panel LED Indicators, Input ON, output ON, Input high / Low, output High / Low trip Under over voltage trip Electronic cutoff circuit with graded time delay set @ + 5% / -10% of nominal voltage Over Load cut off Electronic cutoff circuit with graded time delay set @ 110% of rated full load current Short circuit protection HRC fuse / MCB at input Single phasing prevention Not applicable Provide Individual phase cutoff only Service bypass Not provided Provide upto 100 Kva. 3 phase Individual phase bypass provided up to 50 kVA 3-ph Resetting mode Automatic restart with time delay mode of 15 sec. (optional).
Automatic voltage stabilizers.
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.
Detailed Product Description 1.AVR MX341 2.Automatic votage regulator (AVR) 3.For a brushless generator 4..ISO9001 CERTIFICATED 5.IN STOCK Generator AVR MX341, automatic voltage regulator(AVR) Features Be applicable for separated excited alternator, brushless generator with the frequency of 50Hz or 60Hz; With Parallel Operation Function; Under Frequency Roll Off Protection; With Under Frequency LED Indication; Over Excitation Protection. Technical parameters Source Input Voltage 140-220V ac Current 3A/Phase Frequency 100-120Hz (nominal) Sensing Input Voltage 170-250V ac Frequency 50-60Hz Jumper Selectable Output Voltage Max. 120V dc Current 4A consecutive current output Transient 6A for 10 secs. Excitation Resistance Min.15 ohms Under Frequency Protection(UFRO) Set 95%Hz (By factory) U/f Slop 100-300% down to 30Hz Over Excitation Protection 75Vdc (Default Value) Time Delay 10secs. Soft Start Ramp Time 3secs Adjustment ¡À1%(with 4% engine governing). Individual packing and standard export cartons Measurement of Inner Packing:16.5x15.5x4.6cm Measurement of Outer Packing:50 x 32 x 20cm Outer Packing:20PCS/Carton.
Detailed Product Description 1.CT-1000 2.Droop Current Transformer 3.Primary Current 4.ISO9001 CERTIFICATED 5.IN STOCK CT-1000 Droop Current Transformer Specifications of CT-1000 Model CT-1000 Primary Current 1000A Secondary Current 0.37A Mounting hole size ¦µ13 Power Range 750KVA~1250KVA. Minimum Order Quantity: 1 Piece/PiecesTrial Order Port: Shanghai CHINA Packaging Details: Individual packing and standard export cartons Measurement of Inner packing10cmx9cmx10cm Delivery Time: within 3-5 days after payment Payment Terms: T/T,Western Union Supply Ability: 500 Piece/Pieces per Month.
Detailed Product Description 1.SX460 2.Automatic voltage regulator (AVR) 3.Compatible alternator: STAMFORD 4.ISO9001 CERTIFICATED 5.IN STOCK Automatic voltage regulator (AVR), AVR-SX460 Features Be applicable for self excited alternator, brushless generator with the frequency of 50Hz or 60Hz; Under Frequency Roll Off Protection; With Under Frequency LED Indication. Technical parameters INPUT Voltage 85-125 V ac 170-250 V ac Jump Selectable Frequency 50-60 Hz nominal Phase 1 OUTPUT Voltage max 90 V dc at 207 V ac input Current continuous 4A dc Transient 6 A for 10 seconds Field Resistance 15 ohm minimum REGULATION +/- 1% THERMAL DRIFT (after 10 min) 1% for 40¡ãC change in AVR ambient TYPICAL SYSTEM RESPONSE Field current to 90% 80ms Machine volts to 97% 300ms EXTERNAL VOLTAGE ADJUSTMENT +/- 5% with 1 k ohm 1watt trimmer Under Frequency Protection Set point 95%Hz Slop 170% down to 30Hz UNIT POWER DISSIPATION 10 watts maximum BUILD UP VOLTAGE 3.5V ac @ AVR terminals ENVIRONMENT Vibration 20-100Hz 50mm/sec 100Hz-2k Hz 3.3g Relative Humidity 0-60¡ãC 95% Operating Temperature -40¡ãC to +70¡ãC Storage Temperature -55¡ãC to +80¡ãC DIMENSIONS Outline Dimensions 104(W)¡Á139(H)¡Á39(D)(mm) Installation Size 80(W)¡Á115(H) (mm) ¡Á¦µ5-4 Color Black Weight 300g. Packaging Details: Measurement of Inner Packing:14.6x11.6x4.7cm Measurement of Outer Packing:50 x 32 x 25cm Outer Packing:40PCS/Carton.
1) Servo Stabilizers (1ø and 3ø) 1KVA – 1000KVA 2) Online UPS & Domestic Invertors 1KVA – 100 KVA 3) Micro Controller based Stabilizers 1KVA - 1000KVA 4) Isolation Transformers.
Model MPS-01,02,04,05 i/p power-415v,+/-10%,2 phase Frequency-50/60hz o/p power: Voltage-95VDC Current-6 Adc(max) 80*90*30mm, 650gms(moulded)
Technical Specification Chart Parameter 1 - Phase 2 - Phase 3 - Phase Unbalanced Air Cooled 3 - Phase Balanced Oil Cooled 3 - Phase Unbalanced Oil Cooled Energy Conserved Lighting Load Centralized Stabilizer for offices & residence Rating (KVA) 1 - 20 0.5 - 20 3 - 100 3 - 200 3 - 250 3 - 500 3 - 500 I/P Voltage range (V) 170 - 270 195 - 265 340 - 480 240 - 480 340 - 480 360 - 460 310 - 480 340 - 460 360 - 460 340 - 480 360 - 460 310 - 480 340 - 480 360 - 460 310 - 480 340 - 480 360 - 460 O/P Voltage(normal) 230 V 415 V 415 V 415 V 415 V 208 V LN 220 V / 230 V LN Alternate O/P setting 220 V / 240 V 380 V / 400 LL 220 V LN 220 V / 230 V LN O/P V regulation ¦ 1% of nominal output voltage O/P V Indications Digital voltmeter, accuracy 1% of FS ¦ 1 digit LED Indications Front panel LED Indicators, Input ON, output ON, Input high / Low, output High / Low trip Under over voltage trip Electronic cutoff circuit with graded time delay set @ + 5% / -10% of nominal voltage Over Load cut off Electronic cutoff circuit with graded time delay set @ 110% of rated full load current Short circuit protection HRC fuse / MCB at input Single phasing prevention Not applicable Provide Individual phase cut off only Service bypass Not provided Provide upto 100 Kva. 3 phase Individual phase bypass provided upto 50 kVA 3-ph Resetting mode Automatic restart with time delay mode of 15 sec. (optional)
