JDCF-138GYW Phase Voltage Transformer
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- 1000sets set/month
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Brief Introduction
JDCF-138GYW is a product which have 4 windings and oil insulation voltage transformer.The product conform to the follows national requirement:GB1207-1997 phase <voltage transformer>,GB7354-85<Transofrmer Measurement of Partial Discharge>,GB311.1.19 <Insulation Coordination of High Voltage Transformation>,the international electric stand IEC186 or IEC60044 phase <Voltage Transformer> .This type product is used for electric energy measurement and relay protection in 145KV power system.
1.2 Structural characteristics
This type of voltage product has a cascading insulation structure.Iron corn is the " "shape and overlying by silicon steel sheet.Two iron corn were supported by shelf which mad by low dielectric phonetic paper board.Four coil nest is in the two iron com,The coil reelwith balance winding.measuring secondary winding,protective secondary winding,residual voltage winding.The primary winding was made by unifilar enameled wire and have four class,The upper extreme(A extreme) is all insulation.The lower extreme(N extreme)joint to expansion equipment plinth by push ring.There are three oil mark(+45oC,+20oC,-25oC) beside the expansion equipment.The plinth support the whole product,the terminal of measuring secondary winding,protective secondary winding,residual voltage winding,primary winding bring out formthe plinth.The primary winding N extreme joint to the plinth by joint panel which will be convenient to the test and installation.
1.3 Product mark
the primary winding is A and N,the measuring secondary winding is 1a,1n.the proctive secondary winding is 2a,2n.the residual voltage winding is da,dn.
Type description 
Operation condition
2.1 Am bient temperature:
maximum air temperature:+45oC
minimum air temperature:-25oC
maximum average air temperature:+30oC
2.2 altitude:≤3000m
2.3 minimum creepage distance:3520mm
2.4 atmosphere condition:have o serious pollution in atmosphere,the pollution grade is Ⅲ.
2.5 earthing manner:neutral point joint the earthing efficiently.
The rated value and requirement
3.1 the rated voltage
a.the maximum voltage:145kv
b.the rated primary voltage:138000/V
c.the rated voltage of measuring and protective winding:115/V
d.the rated voltage of residual voltage winding:115V
3.2 the rated frequency:50HZ
3.3 phase:single phase
Operation and maintenance
4.1 Before the installation,inspect the sealed place and welding.It has oil leakage and oil surface is normal,If not,it should oiling the same type oil.
4.2 The oil drawing is from the bottom and its electric intensity is not more than 50KV
4.3 The secondary should not open circuit in the product operation.
4.4 The product should veiled when it storage Before the operatio,it should not be sun or rain.The product shoue be packed.
No tesdge for ordering
a.type of product
b.the rated voltage of each winding
c.accuracy class and rated load
d.Frequency 
- Q: I got this Toroidal Transformer out of a z-5500 speaker system. the amp fryed in the system.whell i got this Toroidal Transformer and i want to know if i put DC power on it will it put out DC Power??It says input 120VAC output 26.2VAC ORG. Wire 0V BLK Wire 26.2VAC YEL Wire 14.0VAC BLU Wire 0VAC BLK/BLU WireAnd i whant to know that can i do with this thing???Thinks
- DC power into most transformers will result in smoke output. All transformers operate on AC. Your description leads me to believe that this is a power transformer with two outputs (not a Toroidal). 26.2 vac ORanGe 0 v (ground) BLacK 26.2vac YELlow and the other output 14.0vac BLU 0v (ground) BLacK/BLUe Your info does not indicate how many amps you can draw from the outputs, but I would suspect that it would be small (1 amp). The 26.2 vac outputs can be used without the ground to produce 52.4 vac output. It is normal for these two outputs to be out of phase.
- Q: Hi Guys.I'm a college a student who is wondering which tablet to buy. I really can't decide.I want to have a good tablet that I can type and hand write on it. A Tablet that can play 720p and 1080p mkv files. A Tablet that is good for pdf reading. This is all I want. The problem is these two tablets are really good. The New Ipad is running IOS 5 while Transformer Infinity is running ICS.I haven't had tablet before so I have no experience, please I'm open to any advice.
- Since you want to write with it, I would suggest the Asus Transformer Infinity. You can connect it to the keyboard docking station (sold separately) and use it as a sort of laptop replacement. Touchscreen is bad for typing anything more than a couple of words here and there. Of course with the iPad you can use a stand + bluetooth keyboard but it's much more hassle. Transformer display has a 16:10 format and iPad has a 4:3 format. This means the Transformer display is better for watching movies that come in 16:9 format (which would be all of them basically). Both have a high enough resolution to not make any difference in my opinion. Asus has 1920x1200 and iPad has 2048x1536. Those would be good even for a 25+ display so I don't think you will even notice a difference when they are crammed in a small 10 display. Different people have different needs, but based on what you said you want to do, I would suggest the Transformer.
- Q: If defects of one phase transformers can be improved by 3 phase transformer,then why not a 4 phase transformer used
- Off the top of my head, we use 3-phase AC because you can make electric motors that go efficiently in one direction with no commutators or tricks with phasing. That would work with any number of phases greater than 2, but at increased complexity in wiring and rotor/stator construction, so there's no point.
- Q: Branch circuit cables are rated for 75?C and feeder cables are rated for90°C. This will be a 3-phase, 575-volt system with four induction motors, specified asfollows:Motor 1: 60 hp 0.90 p.f. squirrel cage motorMotor 2: 60 hp 0.90 p.f. squirrel cage motorMotor 3: 40 hp 0.85 p.f. wound rotor motorMotor 4: 7-1/2 hp 0.80 p.f. wound rotor motorA) Assuming no line losses, find the capacity of the transformer required to supplypower to this system.B) Assume that it is desired to improve the overall power factor for this system to 0.95lagging. Determine, in kVAR, the required capacitance for this power factorcorrection.C) Assume these motors have their windings connected in a delta configuration. Whatwould be the line voltage if they were connected in wye?
- I would look in the NEC for the full load amperes of these motor sizes. These are: 7.5 HP9 amps 40 HP.41 amps 60 HP.62 amps The 7.5 HP motor KVA will be KVA 575 * 9 * 1.732 8.9631 The 7.5 HP motor KW will be KW 575 * 9 * 1.732 * 0.8 7.17048 The KVAR of this motor is Sqrt(8.9631^2 - 7.1705^2) 5.3778 The 40 HP motor KVA will be KVA 575 * 41 * 1.732 40.8319 The 40 HP motor KW will be KW 575 *41 * 1.732 * 0.8 5 34.707115 The KVAR for this motor is Sqrt(40.8319^2 - 34.7071^2) 21.5095 The 60 HP motor KVA will be KVA 575 * 62 * 1.732 61.7458 The 60 HP motor KW will be KW 575 *62 * 1.732 * 0.8 5 55.5712 The KVAR for this motor is Sqrt(61.7458^2 - 55.5712^2) 26.9141 The total KVA requirement for all motors running at once is 8.9631 + 40.8319 + 61.7458 + 61.7458, which is 173.2866 KVA (note this is the requirement from a transformer, not the size of the transformer The total KW of all the motors is 7.1701 + 34.7071 + 55.5712 + 55.5712 153.0196 KW The total KVAR of all the motors is 5.3778 + 21,5095 + 26,9141 + 26.9141 80.7145 KVAR The power factor for all the motor is KW / KVA 153.0196 / 173.2866 0.883 I took a short cut at this point and used an application i wrote to calculate the required capacitor KVAR. The results follows: At 0.95 power factor, the motors' KVA will be 161.065 The motors' KW will be the same. The motors' KVAR will be 50.2926 The required capacitor's KVAR will be 53.988 The reactance of the capacitor will be 10.65 ohms The capacitance will be 3.49059248 E -4 Farads You can calculate these values as I did above, if you want to. EDIT Forgot the last answer. The line voltage is the same for both delta and wye. The leg voltage for the wye motor will be 575 / 1.732 331.98 volts TexMav
- Q: My device has 50KW should be used with much transformer
- On the use of 50KVA transformer on the line, because your device will not appear at the same time the maximum power.
- Q: i rememeber when i was a lil kid i used to watch Beast Wars on friday nights. I think it was back in 2000 or so. It was pretty cool too; as opposed to transforming cars, etc, there were transforming animals. also there werent any humans.imo the new transformers animation sucks, though the movie was greatim sure Beast Wars and Transformers are related because they used names like Megatron and Octomus Prime (sp?)so yeah. what happened to Beast Wars?
- What rely isn't what occurs on the tip of the day, this is what occurs on the tip of the universe. Scientists say the universe will fall down right into a chain of black holes, and because time does not transpire interior black holes, that could be the tip of the universe. yet another time, the Bible is shown by technology. Does that sound rather like, oh, i don't comprehend, HELL!?
- Q: KW how to know how much transformer?
- Know the number of KW, how to calculate how much transformer is needed. In general, our calculation is based on the nature of the equipment, the production process, the development prospects of the production enterprises to analyze the size of the transformer, some companies, how many kilowatts to choose the number of KVA, and some enterprises have all the equipment must boot Run, then, on the choice of a little bigger, the machinery industry enterprises, generally in accordance with the installed capacity of 4-5 fold to select the transformer capacity. For reference only.
- Q: As the title reads, Simply put: How did the original transformers series end? Aswell, how did some of the others, such as armada, energon, and cybertron end?
- G1 never really ended it was a cliff hanger that they wanted to expand into a series called Head Masters (only aired in japan) where Armada, Energon, and Cyberton (aka the Unicron trilogy) all played into each other Armada ending with the aurobots returning to cybertron, Energon the death of Unicron, and Cybertron the closing of the black hole Unicrons death created.
- Q: does anyone know what the songs are in transformers???????
- Linkin Park - What I've done
- Q: I have two-way transformer (120Vlt;240V) that has a surge capacity of 2000W and a continuous capacity of 1600W. The transformer is plugged into my wall socket and is, on its output side, attached to a power surge protector that leads to six separate sockets. There are periods where not all six sockets are in use - in this specific case, the only appliance is a 50W fan - and my question is, does the transformer still eat 1600W off my meter and waste most of it as heat, or is it nice and intakes maybe only 60W and inefficiently converts it to the required 50W? If the company/model comes into question, I can only say the transformer is of Taiwan origin - the company logo is a 'Z' with small D intersecting the two parallel lines of the former letter, all against a blue background - and has a model number of TC-2000. Many thanks.
- the thought is sure and NO. sure, by way of fact a transformers considerable coil has a undeniable resistance. Wattage used is a function of voltage cases modern-day. on the grounds which you recognize the enter voltage is a hundred and twenty V, in case you are able to degree the coil resistance you are able to calculate the present used. Multiply modern-day cases voltage and you get wattage. although, the character of a transformer is extra desirable than basically a trouble-free function of Ohm's regulation which you would be able to seem up on the internet. there is yet another function of a transformer that could desire to be further into the equation, and that i'm not an authority on that. although, this extra ingredient is talked approximately as Inductance. that rather skill that reckoning on the burden of the output, the enter wattage will replace, however not heavily. Suffice is to assert that a transformer it is plugged into the wall yet isn't working something DOES proceed to apply power. you are able to tell this by way of fact the transformer would be warmer than if it weren't plugged in in any respect. this is going on on the grounds which you're changing electric powered modern-day into warmth - you're making use of electricity. on your case, making use of a decrease wattage bulb (this difficulty LED) you will use much less power, yet will in no way be saving a form of electricity. If going green is the objective, you would be extra valuable off making use of a hundred and twenty v LED lights OR a low voltage device it is designed around using LED. to easily set up LED will consequence in little or no decrease fee rates at an exceedingly huge fee. LED lights isn't decrease priced. solid success. :)
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JDCF-138GYW Phase Voltage Transformer
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- 1000sets set/month
OKorder Service Pledge
OKorder Financial Service
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