About Amorphous Distribution Transformer

Amorphous core transformer manufacturers in India produce an amorphous core transformer, amorphous metal transformer, Lendable amorphous transformer, amdt transformer, and other types.

Amorphous core type distribution transformer

Amorphous transformer manufacturers in India and other countries make these transformers by applying a special method to create the core. In conventional transformers, the core is made up of metals. Metals get heated during the magnetization and demagnetization processes. As a result, a portion of the electric energy is wasted as heat energy. An amorphous metal core transformer has the core made up of some alloys. Amorphous transformer core materials are mixed together in the molten stage and then are supercooled. The process is very similar to making glasses. So, the amorphous transformer manufacturers call the amorphous metal distribution transformer as the Metallic Glass Transformer as well. When the metals used for the core are crystalline, they produce more heat. With the specially made amorphous alloy distribution transformer, the core is not crystalline. This means the transformer produces less heat during load. When the loss is super low, this type of transformer is called a super low loss amorphous transformer.

Amorphous core energy-efficient transformer

The applications and advantages of an amorphous distribution transformer are ample. The amorphous iron transformer core has high magnetic susceptibility and high electrical resistance. Amorphous transformers in India are either imported or manufactured locally by amorphous core transformer manufacturers in India. These are made with a ferromagnetic amorphous metal as the core. The mixture of iron, silicon, and boron gives the core very low coercivity. The two kinds of losses are heavily reduced with an amorphous core transformer. When there is no load, the loss is called the no-load loss. This is mainly due to the core of the transformer heating up.

With the non-crystalline metal alloys, the loss is reduced to more than 70%. The other type of loss is called the copper loss; this is when the transformer is under heavy load. A typical amorphous core transformer (AMT) has less copper than the conventional transformers. Due to this fact, an AMT can have less efficiency at full load. To compensate this, more copper and core materials are added to making energy-efficient AMTs. This is why they are expensive than the traditional ones. The bigger the size of the transformer, the more the copper windings are needed. These are used mainly in the grid distribution systems. There are some specialized electric motors that operate under high frequencies which would use these transformers as well. Rajasthan Powergen Transformer P. Ltd. is one of the leading amorphous core transformer manufacturers in India.

What Is Amorphous Transformer ?

The cores of routine transformers comprise of stacks of laminations that are made from silicon steel with a nearly uniform crystalline structure (CRGO). In transformers with amorphous cores, a ribbon of steel is wound to make the core. Amorphous metals are made of alloys that have no nuclear arrange. They are made by the rapid cooling of liquid metals that anticipates crystallization and leaves a vitrified structure within the frame of thin strips.

Due to the need for orderly structure, this sort of metal has to been given the title “The Metallic Glasses”.Rajasthan Powergen Transformer P. Ltd. has set up state of the art amorphous metal core transformer fabricating facility by bringing in the most recent amorphous metal cores manufacturing equipment.

Amorphous Transformer Specification

Applicable Standards : IEC / ANSI / BS / IS / SABS / CENELEC / GOST
A wide range of transformers in accordance with the above standards with different combinations can be manufactured. The transformers are generally designed and manufactured to comply with the IEC publications 60076.
Single Phase: 5kVA-167 kVA, Three Phase: 10 kVA-5000 kVA
Insulation level: £ 12 kV £ 24 kV £ 36 kV
Installation: Indoor / Outdoor installation
Conductor: Copper or Aluminum as per customer’s requirement
Hermetically sealed type (with gas cushion / fully filled) / Conventional type
(with Conservator)
Color: as per customer’s requirement
Cooling: ONAN/ONAF as per customer’s requirement
Cooling arrangement: Corrugation or Pressed steel Radiators
Maximum ambient temperature: as per customer’s specification
Top oil Temperature rise: as per customer’s specification
Amorphous core transformer manufacturers in India: Bangladesh, Uganda, Tanzania, Africa, Rwanda, India, Malaysia Nigeria, Nepal, Kenya, Malawi,

Rated Capacity(KVA)	Group Voltage (KV)		Loss (W)		No-Load Current	Impedance Voltage	Weight (Kg)	Dimention (mm)
Rated Capacity(KVA)	HV	LV	No-Load	Load	No-Load Current	Impedance Voltage	Total	LWH
30	6; 6.3; 6.6; 10; 10.5; 11	0.4	33	600	1.7	4	410	920600980
50			43	870	1.3		510	9506201040
63			50	1040	1.2		570	9906701040
80			60	1250	1.1		630	10307201040
100			75	1500	1.1		720	10607701070
125			85	1800	0.9		830	10609001070
160			100	2200	0.7		960	10609301150
200			120	2600	0.7		1040	11109301150
250			140	3050	0.7		1160	118010101180
315			170	3650	0.5		1240	118010101180
400			200	4300	0.5		1330	120010101180
500			240	5150	0.5		1460	127011601200
630			320	6200	0.3	4.5	1860	145012401330
800			380	7500	0.3		2230	152013801460
1000			450	1030	0.3		2700	172014601510
1250			530	1200	0.2		3180	178015001690
1600			630	1450	0.2		4240	188015401970
2000			750	1740	0.2	5	4920	208015801970
2500			900	2020	0.2	5	6560	235015802020

Ease in repair: It doesn’t have any complex mechanism, thus, it facilitates ease and rapid repair. Moreover, due to modular design also it helps in easy repair.
Less no-load losses: In AMT’s the no-load losses are probably 20-30% less when compared with traditional silicon sheet transformers, where no-load losses repeatedly occur for a lifetime regardless of a load of the transformer.
Improved overload capacity: The another key merit is that it produces less heat because the no-load loss is also less, this results in sustaining overload capacity in a better way. Consequently, it results in longer product life shell.
Better distribution efficiency: Since no-load loss is quite less, it promotes higher distribution efficiency. In addition to it, this will also save your monetary investments in maintenance breakdown.
Environmental caretaker: It can be said as eco-friendly to some extent as it emits lower carbon dioxide and sulphate dioxide, therefore, protecting the environment from such harmful gases.
Sustaining short circuits: The amorphous metal transformers have a higher strength of sustaining short circuits due to its windings and usage of foils.

Transformer rating 3 Phase, 11 kV	Core losses with best grade of CRGO (Watts)	Typical core loss with Amorphous metal (Watts)	% Loss reduction / Energy saving
25 kVA	80	28	65%
100 kVA	260	66	75%
250 kVA	520	150	71%
1000 kVA	1800	350	77%
2500 kVA	3000	750	75%
5000 kVA	5000	1200	76%

Amorphous Transformer Core Materials

Amorphous transformers can be utilized inside as well outside which is the major advantage of these kinds of transformers and accurately the reason so numerous individuals are picking for these kinds of transformers. The frequency of this sort of transformer is usually 50 Hz and 60 Hz and the vector bunch that’s utilized is Dyn5 / Dyn11 or any other in case that’s the necessity and require of the client. The winding material that’s utilized is either copper or aluminum and the taping extend is off the circuit. Impedance is given in line with the appropriate standards as our Transformers could be a solid name within the advertise of transformers.

The LV windings with 200~6300KVA capacity adopt cylinder or screw structure, have high mechanical strength, uniformly-distributed ampere-turns and good anti-short circuit ability
All HV windings adopt multi-layer cylinder structure to improve impulse distribution of winding
Low running noise and higher reliability by using three-phase three-column amorphous core, adopting our invention patent technology ofV2.0 amorphous transformers
Its surface is sprayed with back and top coat after de-oiling, de-rust, and phosphatization to meet special requirements in humid and contaminate regions.
It has characteristic of beautiful appearance,small volume and occupation for installation, is ideal product with good quality and free maintenance.
The transformer installed locating parts to avoid displacement in transportation, meantime allnuts are fastened to assure no loose in operation

Amorphous Metal Casting Process

Amorphous core material is provided within the shape of strips on reels in a five-ply organize with a thickness of 0,115 to 0,125 mm. Ribbons come completely different widths, e.g. 142 mm, 170 mm and 213 mm. The primary organize consists of forming the five-ply lace into layers of ribbon. The ribbons are bolstered to a cutting machine which combines three spools into a cover of 15 layers of ribbon, with a thickness of around 0,375 mm. The stacking calculate of 0,85 comes about in laminations that are marginally thicker.

The core is assembled by binding the layers together over an uncommon mandrel. The stacked laminations are laced over a rectangular mandrel which shapes the inner core measurements. The core is at that point gradually built (“laced”) layer by layer to make a rectangular shape that is nearly comparable to wound core making with customary steel. Typically done by hand. An inward U-shaped bracket or mandrel of CRGO makes a difference to hold the shape of the center. The exterior sheet of the core is ensured by a CRGO strip of the exact width of the undefined core ribbon. This can be fundamentally done to bolster the flexible amorphous ribbon core structure.