ZGS-200-1000-10 Combined transformer

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: 1000sets set/month

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Production introduction
1.ZGS 11 combined transformer is one of the hightech products developed by our company on the basis of pad-mounted transformer.
2.Range of capacity:200-1000KVA.The product is suitable for the neutral-point insulation system or small-resistance grounding system in a 10KV distribution network,or neurtal-point solid grounding system of a three-phase four-wire system in a 400V distribution network.
3.Excellent design,reliable distribution,compact structure,light in weight,and low noise,ect;it has two types of cable outlets;ring net type and terminal type.
4.The product can be placed directly into the load center of 10KV network,thus the line loss is reduced and power distribution reliability is increased.

Performance characteristics
1.The ZGS11 combined transformer consists of high-voltage and low-voltage chambers and transformer tank in the operation chambers.
2.H.V.incoming lines in 10KV cross-linked cables are connected to load switch through knuckle connectors,straight plugs and sleeve sockets.
3.On the high-voltage side,a protection of double fuses(backup current-limiting fuse and plug-in type of fuse are used).
4.There are terminal type and ring net type high-voltage load switches for selection.
They are easy to connect,convert and reliable for power supply.
5.In the low-voltage chamber,a fixed type or drawable type is optional for the low-voltage switch cabinet according to user's requirement.Various low-voltage apparatus,such as metering and protection instruments are available.(Note:In general they are customized)
6.The oil tank is fully-sealed by corrugated radiators,which features compact and superior appearance.

Model designation

Applicable standards
GB1094.1-2-1996 Power Transformer
GB1094.3-5-2003 Power Transformer
JB/T10318-2002 Technical parameters and requirements for oil-immersed,non-crystal alloy iron core,distribution transformer.

Normal service conditions
Installation type:indoor/outdoor type
Ambient temperature:-25^oC~+40^oC
Altitude:≤1000m
Humidity:daily average value≤95%,monthly average value≤90%
Installation site:in places without corrosive gases,obvious dusts and water-vapour;the gradient is no more than 3% and no fierce shock.

Performance Characteristics
1.Compare with type "9" transformer,the product's no-load loss is reduced by 30% and thus the average annual operating costs can by reduced by 20.03%.
2.The transformer body,high voltage load switch fuses and no-excitation tapping switches are all put into the fully-sealed oil tank,which make good use of the space.Therefore,the overall size of the product is only 1/3 of that of the similar product.
3.The plug-in and out cable connection is easy for operation.
4.An obstacle protection is of two-stage fuses structure(backup current-limiting fuse and plug-in type fuse) which ensures a safe and flexible operation and more convenient for replacing of fuse.
5.The oil tank is fully-sealed,in which the oil is totally isolated from the outside.No leakage and maintenance free.
6.Excellent short-circuit proof capacity and high reliability.

Notes for placing orders
Transformer type:rated capacity kVA
Number of phases:three-phase single-phase
High voltage:kv/Low voltage:kv
Frequency:50HZ 60HZ
Tapping range:±2×2.5%±5%other
Connection group:Yyn0 Dyn11 other
Impedance voltage:4% 6% other

Q:I have a few power tools, none of which are natively wired for 110-240v. In particular, a portable table saw, a router, and a mitre saw, all at 220v. Since the resale value of them are so low on auction sites, I was thinking of taking them with me when I shift home to the states. Would it be safe using those tools, for extended periods, whilst running them on a transformer?: You can do that. Just make sure the transformer is rated for the power they will draw. Keep this in mind: American homes are wired with 220 volts. Only, they split the voltage into two 110 volt legs. Each leg to ground (or neutral) is 110 volts (also commonly referred to as 120 volts). But from one leg to the other is where you get the 220 (or 240) volts. My garage is wired with two legs of 110, which means I have 220 out there. I also have an outlet for 220 volts. Because some of the power tools I run demand more current, and run them simultaneously, the standard 110 outlets struggle to meet the demand. So what I did was to take a dryer cord and wire it into a pony panel where I can draw 110 volts from one leg to ground to power a table saw while the other leg powers the dust collection system. To try and run both those pieces of equipment on a single 110 line means a trip to the breaker to reset it because each draws enough power that when used together they draw more current than the circuit is safely rated for. YOU can do something similar. Just make sure you use a 20 amp outlet meant for use with 220 volts and wire into the panel (if not already wired) and set up a 220 volt plug where you will be using these power tools. Using a transformer will work, but the more you couple the power magnetically the more inefficient your system becomes, and you waste power. Also consider just buying tools rated at 110 volts. They're plentiful and cheap enough that the cost may offset the cost of shipping these 220 v tools. Throw in the cost of a transformer and you're probably spending more money in the long run. Hope this helps. '')

Q:Any help much appreciated here, I cannot understand the following formulas at all. If there is anyone who can please explain in very SIMPLE words I would be very grateful. My exam is next week and I am still stumped on the following.VP/VS NP/NS IS/IP ok this bit I understand, but then here are the QAs that don't make sense to me:Q1) A single phase transformer has 1250 primary turns and 200 secondary turns. Primary V I are 230V and 3A. What are the secondary V I?A) 1250/200 230/vs transpose too: VS 200 X 230/1250 36.8V Why has it been turned upside down?230/36.8 Is/3transpose too: Is 3 X 230/36.8 18.75A Why??The following Q I am even more stuck withQ2) Single phase transformer has a rating of 300/230V, 15KVA. What is the full load of primary and secondary?A)S VI Where did S come from?!Ip 1500/3300 4.55A KVA - is this taken as the V? Not I? Is that why Is 1500/230 65.22A it has been reversed? I'm very confused, please can someone help explain this process to me?: Transformer Formulas

Q:How to increase the transformer output current: Change the coil winding group, if possible. Otherwise can not change, change the voltage can be.

Q:How many times does a copper wire have to go around the input side of a transformer to get the necessary amount of magnetism from 110 volts?How thick does the wire around the transformer have to be if the input it 110 volts? Can it be one wire as thin as a garbage bag tie, or does it need to be as thick as the original wire, but stripped and coiled around the transformer core?: magnetism or magnetic field does not have a direct relationship with voltage. In a basic transformer, there are two coils. If your source is 110 volts on the input coil, and there are 100 turns of wire in the input coil and 200 turns in the output coil, then the voltage across the output coil will be 220 volts. This is because the turns ratio, (number of turns in output coil divided by number of turns of input coil) 200 / 100 2. And output voltage is equal to input voltage, multiplied by the turns ratio. Therefore, considering a second transformer with an input coil of 50 turns and output coil of 100 turns, the turns ration is still 100 / 50 2. Therefore if this transformer were connected to the same 110 volt source, the output 110 * 100 / 50 220 volts, same as for the first transformer. In a practical sense, many common small power transformers are designed with one turn of wire per volt. But this design also reflects the mass of silicon steel that is used in the design of the core which is also a very important part of the transformer design.

Q:Current and Potential transformers both are actually Instrument transformers, which step down or lower down the values of current and voltages for measuring purposes.But I have heard of that both CT and PT specifically are used for stepping up current and voltages at some point of transmission system.if this is correct then can anyone tell where they are used?If not then there are step up transformers for similar uses but my question is why they are not called as CT's or PT's.: Transformers that are called current transformers and potential transformers are designed specifically for instrumentation purposes. They are designed to provide reduced current or voltage signals that very accurately represent the primary current or voltage. They are designed to have a minimal effect on the primary circuit. The are manufactured only in sizes needed for instrumentation purposes. Instrumentation purposes include not only providing signals to meters but providing signals to protective relays and control systems. CTs and PTs may occasionally be used for purposes other than the purposes for which they are designed. I have heard of a CT being used backwards to supply a high current at a very low voltage for some testing purpose. This sort of thing is sometimes done as a temporary measure when more appropriate devices are not available.

Q:i have learnt from engineers that welding transformer is different from power transformer. welding transformer's current will be high.but its load will be low.my actual doubt is current is always proportional to load.then how we can justify this logic that welding transformer's current rating is high and its load is less.: Its not to do with load. There is no reason you couldn't have the same load on a power transformer. Its the impedance that is different. A welding arc is started by short circuiting the output of the transformer. Doing this to a power transformer would damage it, or at least, operate the protection. The impedance is higher on a welding transformer so it can withstand the shorts.

Q:i bought transformers a few months ago, and i finally watched it last night.my nephew watched it and i guess got something on the dvd.i was at the ending where they rolled bumblee in on the truck and the cube was destroyed and all that and optimus prime was saying they lost a great ----- i can't remember extactly what he said.anyway, right after that, the cd skipped and went do directly to the credits.what did i miss?: Optimus is saying they lost a great warrior (or something like that, refering to Jazz). Bumblebee askes if he can stay with the boy, and he does. The end shoes Shia and the chick laying on Bumblebees hood and the other main Autobots around and Optimus is giving some speech (I can't remember).

Q:I haven't seen Dark of the Moon, but I recently got OBSESSED with Transformers. Please don't spoil anything, but I'm curious, how do they incorporate the new chick, Rosie, Huntington-Whitely, in the movie? Do they ever explain where Micheala went(Btw- I KNOW what happened to Megan in real life.that's not what im asking lol) So yeah, thanks!Bq: SAY OPTIMUS PRIME IF YOUR A GIRL TRANSFORMER FAN:)Bq: Do MOST girls like Transformers, or is it mostly guys who like it?: OMG I freaking love transformers! I hate the new girl though!All they say about megan is that they broke up OPTIMUS PRIME

Q:I check the voltage between x1 and x2 I got 120v but between x1 and ground on primary I got 40v and between x2 and ground on Primary I have 50v, if I connect x2 to ground won't it short the transformer? Thank you: What you see is normal, until the transformer is grounded the voltage floats. It is the same with the power for your house, the secondary of the transformer is normally grounded at the utility transformer, and at your ground rods, and to your water lines. X2 is the normal side grounded, although this has never made sense to me. You can imagine this, connecting one end of a flashlight battery to the frame of a car does nothing, you could then attach the other end of the battery to a light bulb, and the other bulb connection to the end of the battery or the frame, it only shorts if you connect the hot to the ground if you don't connect through a correctly rated load. Edit: Yes, ground it to the ground screw that the 208v ground wire is connected to, just to be clear, 208v connections H1 and H2 should not be grounded, and either x1 OR x2 needs be grounded, normally x2, grounding the transformer connection that is not connected to fuses.

Q:I purchased a doorbell in Europe, it has a transformer that goes from 220V to 14.8V, will the transformer work on 110, or do I have to replace the transformer?: Yes but the secondary will produce 7.4VAC instead of 14.8VAC.

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