GF1061PT is the first portable device (4.8 kg) which offers highly accurate voltage transformer tests. This allows to use GF1061PT not only for electrical performance checks, but also for class verification and calibration. It performs quick tests of all kinds of inductive voltage transformers (VTs or PTs) and capacitive voltage transformers (CVTs) for both protection and metering purposes. Its lightweight design makes it ideal for on-site tests and calibration tasks in power system grids. Accuracy 0.02% Power supply AC 220V±10% or AC 120V±10%, 50/60Hz or Battery Output voltage 0-100Vrms Output current 0-5Arms (20A peak-value) Output power 0-400 VA (1500 VApeak) Automatic frequency variation range 0.1-60Hz Equivalent excitation voltage â?¤5000V/50KV Accuracy â?¤0.5% Secondary winding DC resistance measurement Range 0.1-1000�© Accuracy â?¤0.05% Secondary actual load measurement Range 5VA-1000VA Accuracy â?¤0.5%�±0.1VA PT phase error measurement Accuracy ±1min (typical) / 3 min (guaranteed) Resolution 0.1min PT ratio error measurement Range 1-15000 Accuracy 0.05% LCD display 7' inch TFT touch color LCD Communication port USB port Printer Yes, Thermal printer
GF1061R portable instrument transformer turns ratio test set is mainly used for field or lab testing of current transformers and voltage transformers, it can fully automatic test CT and PT turns ratio. Adopt 7 inch touch TFT LCD, self-equipped mini type printer supporting field printing; supporting to use USB flash disk to dump data. Test quickly, operation simply Environmental conditions Accuracy 0.05% Power supply AC 220V±10% or AC 120V±10%, 50/60Hz Voltage Range 0-100Vrms Resolution 0.1V Current Range 0-500mA Current accuracy ±1mA, ±0.05% of reading ±1 digit CT PT Turns ratio CT 0.8-50000; PT 0.8-10000 CT PT turns ratio Accuracy ±0.05% Phase angle measurement 0-90
30W 24V constant voltage led driver
This static piece of apparatus improves efficiency and also reduces losses during run time. We provide best in class Power transformer which range from 33 KV to 200 KV voltage class and average rating starts from 200MVA onwards. We strictly adhere to international standards and certifications backed with GMP and best in class service provider.
And this domestic and LT static provides precise reading (voltage) at either step down or step up mode. It is made possible with stringent GMP backed with years of experience. We provide best in class Distribution transformer which range from 11KV to 22KV voltage class and average rating starts from 10kVA onwards. We strictly adhere to international standards and certifications backed with GMP and best in class service provider.
We sell current transformers. Please contact me for quotation.
Electrical laminated wood is mainly used for transformers; it is also the insulation material and support material of mutual inductor. Besides, it can be used to make winding clamping plate, iron core plate, trapezoidal plate and clamping device. And it has many advantages, such as proper specific weight, high mechanical strength, good compatibility with transformer oil and easy machining. In addition, its dielectric constant is close to that of transformer oil and the insulation coordination between them is proper. It can be used in transformer oil under 105â?? for a long time. Electrical laminated wood sheet is widely used in manufacturing some devices for oil-filled transformer, such as upper and lower pressure plate, lead bracket and iron yoke cushion block. And it is used to make clamping device in mutual inductor. It can replace steel plate, insulation paper board, epoxy paper board and epoxy fiberglass board, which can lower the weight of the transformer and the cost of materials. It has been recognized to GB/T20634 or IEC61061.
Product Description Type: Dry Type Transformer Model Number: SC(B)10-30~2500/35 Phase: Three Rated High Voltage: 10(11, 10.5, 6.6, 6.3, 6 )KV Rated Low Voltage: 10KV, 0.4KV or as required Rated Capacity: 30~2500KVA Our dry type transformers are in conformity with the following standards: 1. National Standard of China GB1904.11-2007Power Transformers 2. International Electro Technical Commission Standards IEC 60076-112004 Dry Type Transformers 3. German Industry Standard DIN EN 60076-11:2005 Dry Type Transformers
Basic Info Model NO.: GWEFD12 EFD15 EFD20etc GWRM4, RM5, RM6, RM8etc Usage: Single-phase Transformer Frequency Characteristics: High Frequency Shape of Core: Etd,RM Brand: Grewin Type: High Frequency Transformer Coil Number: High Magnetic Flux and Low Loss Magnetic Materials Indicative Power Capacity: UL Insulation System for Class B (130), F (155), H Trademark: Grewin High Frequency Transformer Transport Package: Export Standard Carton with Strong Pallet Specification: VDE, CE Origin: Tianjin HS Code: 85043190 Product Description We have passed ISO9001:2015,CE,SGS approval and IEC report 1).Features: Has a strong anti-interference, distributed capacitance, impedance, attenuation of low transmission, firm structure,can fine-tune the inductance, etc., are widely used in fax machines, PBX. 2). Applicable frequency range: 20 to 100kHz : Operating frequency: higher than 200kHz High magnetic flux and low loss magnetic materials With low leakage inductance and high efficiency . 3).Applications: PCB circuits, computer, TV, monitor, scanner, duplicator, mobile adapters, printer and other equipments and instruments. UL insulation system for Class B (130), F (155), H (180) 4). Can make other customized Ferrite transformers: Power range: core type using N67 grade material 500: ETD54, ETD59 and E65 5)Advantage: 1.UL, CUL, CE, ISO9001:2015 2.We offer custom-made transformers, OEM and ODM are welcome 3.We deliver the quality you expect at consistently competitive prices 4.Transformer quality lifetime:10 Years. 5.Specialty Sales service:5 -10 Years 6.Transformers Test: 100% test before the shipment About us: 1). Tianjin Grewin Technology Co.,ltd. has always laying great emphasis on our core business philosophy "Quality and Honesty First ". Grewin Mission: Growing together side by side,Mutual success hand in hand. Production: Ferrite Core High Frequency Current Transformer 2).Terms of Shipment: Within 10 working days after received related prepayment or L/C. 3).Payment terms: (1). T/T 100% or 50% deposit by T/T in advance, balance amount to be paid 7 days before delivery. (2). By irrevocable L/C at sight, to be issued immediately against confirmed order. (3). Payment by T/T, if order amount is less than USD 20,000. 4).Flow chart of trading activities: NO Step Days need 1 Request for quotation 1 day 2 Making quotations 1 day 3 Offer and counter offer 3 days 4 Sending and receiving samples 3-10 days 5 Sample confirmation 3 days 6 Placing a firm order 1 day 7 Paying and receiving the down payment 1-4 day 8 Factory production & Quality inspection 15-20 days 9 Paying and receiving the balance 4 days 10 Delivery of goods 1 days
Basic Info Model NO.: GWEI-28, EI-35, EI-41, EI-48, EI-57, EI-66 etc. Usage: Single-phase Transformer Frequency Characteristics: Low Frequency Shape of Core: EI Brand: Grewin Ei Low Frequency Transformer Type: Encapsulated Transformer Color: Yellow, White, Black, Brown, Red Primary: 115V Single or Dual Ui: Ui20, Ui39 Trademark: Grewin Ei Low Frequency Transformer Transport Package: Export Standard Carton with Strong Pallet Specification: VDE, ISO9001 Origin: China HS Code: 85043190 Product Description 1.Product Specification: 1). Models: EI28, EI30, EI35, EI48, EI57, EI66, EI86, EI96, EI105, EI114, EI133, EI152, EI162 etc. 2). Maximum output: 1.2W, 2W, 12W, 20W, 35W, 40W, 50W, 90W, 180W, 200W, 400W, 600W, 850W, 1500W, 2400W, 2700W etc. 3). Input:100Vac, 110Vac, 115Vac, 120Vac, 220Vac, 230Vac, 240Vac etc. 4). Output:AC(0--380V); DC(0--50V) 2.Product Feature : 1). Easy to install. 2). Lower power consumption. 3). Little temperature rising. 4). High accuracy of output voltage. 5). Diemension and output leads can be customized. 6). Dielectronic Strength is high. 3.Application 1). Measuring instruments. 2).Communication prducts. 3). Medical instruments. 4). Audio & Video 5). Elevator 4.Advantage: 1).UL, CUL, CE, ISO9001:2008 2).We offer custom-made transformers, OEM and ODM are welcome 3).We deliver the quality you expect at consistently competitive prices 4).Transformer quality lifetime:10 Years. 5).Specialty Sales service:5 -10 Years 6).Transformers Test: 100% test before the shipment About us: 1.Tianjin Grewin Technology Co.,ltd. has always laying great emphasis on our core business philosophy "Quality and Honesty First ". Ei Low Frequency Power Inverter Transformer for Measuring Instruments 2.Terms of Shipment: Within 10 working days after received related prepayment or L/C. 3.Payment terms: (1). T/T 100% or 50% deposit by T/T in advance, balance amount to be paid 7 days before delivery. (2). By irrevocable L/C at sight, to be issued immediately against confirmed order. (3). Payment by T/T, if order amount is less than USD 20,000. 4.Production The following picture showed you about all finished transformer production line and package with export standard carton and strong pallets: Ei Low Frequency Power Inverter Transformer for Measuring Instruments
Application: Power, Electronic, Instrument, Lighting, Rectifier, Audio Phase: Single Core: Core-type Transformer Cooling Method: Dry-type Transformer Winding Type: Multi-winding Transformer Certification: ISO9001-2000, UL, ISO9001, CCC Basic Info Model NO.: GWCTT Usage: Single-phase Transformer Frequency Characteristics: 50-400Hz Shape of Core: PCB or Wire Brand: Grewin Shell Material: PBT or ABS Frequency: 50-400 Hz Operating Temperature: -25 to +55c Operating Voltage: 600VAC Isolation: 600V, Bil 10kv Full Wave Accuracy Class: Compliant ANSI Rated Input: 60-4000 Model Name: Instrument Current Transformer Dimension: 12-72mm Company Nature: Manufactory Trademark: grewin Transport Package: Export Standard Cartons with Strong Pallets Specification: CE ROHS Origin: China HS Code: 850450000 Shipping: 1. Products are shipped via UPS / DHL / EMS / HK EMS / FedEx / TNT and so on expresses (door to door). 2. We Provide Drop shipping Service. 3. 20 days around delivery upon receiving payment if the qty is lower than 1000PCS and it is not customized products. 4. In order to ensure you receive your order tax free upon import, we declare lower value. 5. Shipping via EMS. UPS. FedEx and TNT express usually takes 3~7days dependent on the destination country. Payment: 1. We accept Western Union and T/T 2. 30% deposit and 70% before shipping 3. No payment collection. We only can deliver goods after geting full payment. Warranty: 1. We provide 1 year warranty. 2. If the product is defective, please notify us within 3 days of delivery. 3. All products must be returned on their original condition, in order to qualify for a refund or exchange of goods
Basic Info Model NO.: 105VA 150VA 180VA 200VA 250VA 300VA 350VA 400VA Usage: LED Underwater Lamp, LED Ground Light Frequency Characteristics: Low Frequency Shape of Core: Ring Brand: Grewin Toroidal Transformer 100% Copper Wire Made: Toroidal Style ABS Fire Material: Plastic Cover High Performance Insulation: Epoxy Resin Anti-Corrosion: Waterproof Performance Outdoor Waterproof Transformer with Plug: Highly Energy Efficient Water-Safe Making IP Rating: IP64 IP66 IP67 Rating for Outdoor Use Application 1: LED Ground Light, Outdoor Power Supply Application 2: Humidifier, Swimming Pool, Garden Light Short-Circuit-Proof Safety: Isolating Transformer Primary/Secondary Winding: Enamelled Copper Wire Trademark: Grewin outdoor waterproof toroidal transformer Transport Package: Export Standard Carton or Customize Strong Pallet Specification: CE Origin: China HS Code: 85043190
GDKF Transformer Load and No Load Tester Introduction: It's used to Measure the transformer load and no load current, load and no load loss, short-circuit voltage, short circuit (load) losses and capacity. Test items: RMS phase voltage Average value of three-phase AC voltage Three-phase current RMS Percentage of no-load loss and no-load current Load loss, impedance voltage, and the percentage of short-circuit impedance Any given temperature, load loss, the percentage impedance voltage and short circuit impedance Voltage waveform in the percentage of each harmonic component Current waveform in the percentage of each harmonic component Technical index: Current measurement range: 100mA ~ 5A, accuracy class 0.2; Voltage Range: 10V ~ 650V, accuracy class 0.2; External transformer can broaden the scope of measurement instruments; Frequency Range: 40 ~ 65Hz, accuracy class 0.2; Power Input: AC220V ± 10% Company Information Our company has become one of the leading manufacturer of petroleum testing instrument and electrical testing instrument since 2009sâ??. We have developed sales channels in many countries such as Malaysia,India,Germany,USA,Mexico,Saudi Arabia,South Africa and other countries worldwide. and we have gained great advantage and high reputation in international market. We are making effort to develop together with customers from both domestic and abroad on the basis of reciprocity.Client,quality and service are our supreme target. Our Services Pre-sale Service: Inquiry will be replied within 24 hours. Welcome to visit our factory. Technical datas and operation manual sent for evaluation. After-sale Service: Training how to instal the machine, training how to use the machine at our factory; Engineers available to service machinery overseas at customers' cost;GDKF Transformer Load And No Load Capacity Characteristic Tester
SGB (DGB) series three-phase (single-phase) dry-type, isolating, voltage transformer is a multi-coil (double coil and above) structure voltage transformer, the primary and secondary windings are insulated from each other. Its transformation ratios are of fixed and tapping type, which enable voltage bucking and boosting. It can also electrically isolate input and output windings from each other to avoid risks of simultaneous access to electrified body (or electrified metal parts due to insulation damage) and ground hazard. Besides, it also has certain inhibiting effect of various kinds of interference.
Features: High saturate magnetic induction bs High initial permeabilityhigh linearity high accuracylow phase and amplitude error for ct Good temperature stability-55~130 Applying for transformer class grade: 0.5-0.05 class 2applications High precision current and voltage transformer Current leakage circuit breakers Electronic watt hour meter Precision power meter Current control in automation industry
1.Features, High permeability High saturation induction , low core loss The density and lamination coefficient of nano-crystalline is lower than that of Permalloy, under the condition of the same size and similar performance of the Two. It is 1/4 lighter in weight, and 1/3 lower in the manufacturing cost. Good temperature stability:work for a long time at temperature of -55 ~ 130 , The linear range of nano-crystalline alloy is wider than that of permalloy .
The description of the products: 1. Three phase oil immersed power transformer rated voltage during 6-35kV, oil immersed transformer are most used in power plant, power grid transmission and distribution station, industry & commerce electrical substation as the electrical equipment of power transmission. 2. Great ability of short circuit resistance 3. Cold rolled silicon steel core and oxygen-free copper wires, higher efficiency and lower loss 4. Complete sealed structure, low maintenance 5. Vacuum oil filled prevents air bubbles, high stability of insulation 6. Buchholz relay, oil indicator, pressure relief valve and thermostat, monitor status of power transformer and keep it safe 7. Low winding partial discharge and low noise 8. Two windings or three windings, On-load or no-load voltage tapping changer, Natural cooling or force air or oil cooling, Capacity range 5KVA-2500KVA
Introduction to Products Its core is made of quality cold-rolled silicon sheet and is of a full-miter non-puncture structure and its coil is made of quality oxygen-free copper. It is artistic in appearance and safe in running and is widely used in transmission and distribution of industrial and agriculturalist. Main Function And Features It adopts radiator oil tank of corrugated sheet type or expansion type. As it doesnâ??t need oil conservator, the height of transformer is reduced , and as the transformer oil doesnâ??t contact with air , the oil ageing is retarded, thus prolonging the service life of transformer. The no-load loss of Model S10-M is 20% lower than that of Model S9-M , and S11-M is 30% lower than S9-M. the transformers are high in reliability , advanced in performance and rational in economical indexes . The oil tank is diversified in types and looks artistic and elegant.
Title goes here. INTRODUCTIONS I- GENERAL CHARACTERISTICS Transformers immersed in insulating fluid with natural self cooling (ONAN), three-phase, 10 - 20 MVA.for indoor or outdoor use, 50/60 Hz, hermetically sealed. II- MANUFACTURING STANDARD The transformers described in this catalogue are designedand tested in accordance to IEC/BSEN 60076 III- RATINGS 30,50, 80,100,125,160, 200,250, 315, 400, 500, 630, 800, 1000, 1250, 1600, 2000, 2500kVA. IV- HIGH VOLTAGE This material is designed for voltages of â?¤ 36 kV. Specific figures are not given for this parameter because of the wide variety of voltagesused. Transformers can be supplied on demand to run at two different primary voltages, the shift between these input voltages has two basic alternatives: with a primary tap changer which can be switched with no load and no applied voltage or by changing terminals under the cover. V- LOW VOLTAGE The secondary voltage under no load is allocated at 400V, 415V, 433V, though other voltages can be supplied on demand. When usage requires two voltages, transformers with two simultaneous voltages can be supplied. In this case the no-load voltages are set to 400V(230V),415V(240V),433V(230V). VI- VECTOR GROUP REFERENCE The connections normally used are as follows: For rated power levels of 160 kVA or less: Yyn0 For rated power levels over 160 kVA: Dyn11. ACCESSORIES I- BASIC EQUIPMENTS All transformers are supplied with: 3 high voltage bushings 4 or 7 low voltage bushings 5-position tap changer on cover, workable with transformer off load 2 lifting & tank removal eye-bolts Filling hole with M-40 x 1.5 outside thread and threaded cover Drainage & sampling plug at bottom of tank Two-way, standard rail gauge welded at the bottom of tank 2 earthing connections at bottom with M-10 screws II- OPTIONAL ACCESSORIES Thermometer Tap changer HV plug-in bushing Thermostat Protection & control block for the following
Title goes here. INTRODUCTIONS I- GENERAL CHARACTERISTICS Transformers immersed in insulating fluid with natural self cooling (ONAN), three-phase, 10 - 20 MVA.for indoor or outdoor use, 50/60 Hz, hermetically sealed. II- MANUFACTURING STANDARD The transformers described in this catalogue are designedand tested in accordance to IEC/BSEN 60076 III- RATINGS 30,50, 80,100,125,160, 200,250, 315, 400, 500, 630, 800, 1000, 1250, 1600, 2000, 2500kVA. IV- HIGH VOLTAGE This material is designed for voltages of â?¤ 36 kV. Specific figures are not given for this parameter because of the wide variety of voltagesused. Transformers can be supplied on demand to run at two different primary voltages, the shift between these input voltages has two basic alternatives: with a primary tap changer which can be switched with no load and no applied voltage or by changing terminals under the cover. V- LOW VOLTAGE The secondary voltage under no load is allocated at 400V, 415V, 433V, though other voltages can be supplied on demand. When usage requires two voltages, transformers with two simultaneous voltages can be supplied. In this case the no-load voltages are set to 400V(230V),415V(240V),433V(230V). VI- VECTOR GROUP REFERENCE The connections normally used are as follows: For rated power levels of 160 kVA or less: Yyn0 For rated power levels over 160 kVA: Dyn11. ACCESSORIES I- BASIC EQUIPMENTS All transformers are supplied with: 3 high voltage bushings 4 or 7 low voltage bushings 5-position tap changer on cover, workable with transformer off load 2 lifting & tank removal eye-bolts Filling hole with M-40 x 1.5 outside thread and threaded cover Drainage & sampling plug at bottom of tank Two-way, standard rail gauge welded at the bottom of tank 2 earthing connections at bottom with M-10 screws II- OPTIONAL ACCESSORIES Thermometer Tap changer HV plug-in bushing Thermostat Protection & control block for the following
