Nicore India Market Leader Toroidal Transformer Core Manufacturers and Suppliers for Industries in CRGO Magnetic Cores. Our Toroidal Transformer core is basically a wound grain-oriented silicon strip containing approximately 3% of silicon to the circle or another form. Which can be in different types and different shapes according to customer wishes and projects.
EPX cores were derived from EP cores
specially for pulse transformers in ISDN
and ADSL applications. In comparison
to EP cores they feature an increased
centre pole area and achieve the same
AL and THD performance in a smaller
core volume. The new EPX designs,
complete with SMD bobbin and clip,
satisfy the need for slimmer pulse
transformers.
They are available in the high permeability
material 3E6 for ISDN pulse
transformers and in the low harmonic
distortion material 3E55 for ADSL
wideband applications. Power materials
are introduced along with these.
A disadvantage of the classical P core
design has always been the narrow
wire slots, making it diffi cult to make
strong coil formers with integrated
solder pins.
In the PT design this problem is solved
by cutting away the sides of one core
half. This creates ample room for wires
and coil former fl anges.
A range of special PT coil formers is
available but also most standard P core
accessories can be used.
The ER core design is derived from
the original E core and, like ETD and
EC cores, has a round centre pole and
outer legs with a radius to accomodate
round coil formers.
These cores are mainly used for power
transformers. The round centre pole
allows the use of thicker wires while the
shorter turn length keeps the copper
losses low.
Planar ER cores are very suitable to
build small SMD or planar power and
signal tranformers. For the 3 smallest
sizes matching SMD coil formers and
clips are available.
The EQ core design is derived from
the ER and PQ. The range is optimized
for use in compact AC/DC notebook
adapters and DC/DC converters.
For instance, the EQ30 has the
capability to handle a power range of
50 to 70 W (fl yback topology) in an
enclosed casing of a notebook adapter
or 100 to 150 W in low profi le DC/DC
converter .
The advantages of EQ cores are a
simple core shape, round centre pole,
high Ae value , a large winding window,
low profi le and a large surface area for
heat dissipation.
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The ETD core design is a further
development of
E cores. They are optimized for use
in SMPS transformers with switching
frequencies between 50 and 200
kHz. The designation ETD (Economic
Transformer Design) implies that this
design achieves maximum throughput
power related to volume and weight
of the total transformer. Shielding is
somewhat improved compared with
E cores. The matching coil formers
are suitable for many winding types
and can be handled on automatic
equipment.
Economic Flat Design (EFD) power
transformer cores offer a signifi cant
advance in circuit miniaturization. Their
low build height and high throughput
power-density make them ideally suited
to applications where space is at a
premium.
Throughput power of a ferrite core
transformer is essentially proportional
to its volume. So the transformer
is one of the main limitations in a
DC-DC converter's size. Now, with
the introduction of the EFD system, a
signifi cant reduction in transformer core
height has been achieved.
EFD transformer cores combine
both extreme fl atness with a very
high throughput power-density for
frequencies up to 1 MHz and higher.
Every transformer, based on the EFD
range, has a lower building height than
any other existing low-profi le design
with the same magnetic volume. This
is achieved by placing the centre pole
of the core always in the centre of
the fi nished transformer, thus making
maximum use of the winding area.
The PH core range consists of potcore
halves specially designed for use in
proximity switches. Their shape is
derived from the IEC standard P-core
range. Outside diameters are adapted
to fi t standardized sizes of proximity
switch housings.
Since the cores are used as
halves, their height is increased to
accommodate the winding.
A complete range of coil formers is
available.
The EP/LP core range was specially
designed for wideband transformer
applications where low build height is a
must. The board area occupied by the
assembly is almost a square, allowing
high packing densities on the PCB.
The bobbins have two rows of pins
allowing easy design of multiple output
transformers.
Cores are available in high permeability
materials, including the new low
THD material 3E55, for wide band
transformers and in power materials for
small power transformers.
Rated voltage:72.5kV
Power frequency test voltage:140kV 1min
Lightning impulse test voltage:350 kV
Power:50 kVA
Rated frequency:60Hz
Creepage distance: 31mm/kV, 2248mm
Arcing distance:655mm
Eddy-current testing (also commonly seen as eddy current testing and ECT) is one of many electromagnetic testing methods used in nondestructive testing (NDT) making use of electromagnetic induction to detect and characterize surface and sub-surface flaws in conductive materials. The two major applications of eddy current testing are surface inspection and tubing inspections. Surface inspection is used extensively in the aerospace industry, but also in the petrochemical industry. The technique is very sensitive and can detect tight cracks. Surface inspection can be performed both on ferromagnetic and non-ferromagnetic materials
Ashwa Shakti Engineers Pvt Ltd; Bengaluru has follwing used Transformers for SALE.
1) 200 KVA 11 Kv/433 V Aluminium Winding.-1 No
2) 250 KVA 11 Kv/433 V Copper winding.-1 No
3) 315 KVA 11 Kv /433 V Copper Winding-1 No
4) 3500 Kgs M4 Grade 0.27 mm thick CRGO Lamination of 5
MVA 33/11 KV
5) 7000 Kgs M4 Grade 0.27mm thick Lamination of 10 MVA
110/11 KV
aiia is specialized in manufacturing Single-Phase Isolating & Safety Transformers from 20VA to 5kVA and three-phase transformers from 100VA to 500kVA, for applications in different fields from industrial to automation to photovoltaic to marine.
The transformers offer good access to the four-hole fixing, finger-proof terminals, and full varnish impregnation to protect against humidity.
The power supplies is a highly reliable, 36W 12V 24V wall-mounted style single-output AC DC Power Adaptor series. This Class 2 Power Supply 36w is equipped with an AC plug USA type and Class 2 rated without earth pin, accepting the universal AC input voltage range. Featuring the working efficiency of level VI, low no-load power consumption below 0.075W, wall plug in Power Supply 24V is compliant with the latest USA energy regulation. Universal Ac Dc Adapter provides safety protections for over current, over voltage and short circuit.
1.Features:
Double-screw fastening, safe, easy to install, portable
Wide inner window, allowing clamping of big cables or bus-bars
Wide range of sizes to accommodate all the existing installations
2.Application:
Current measurement, monitoring and protection for electrical wiring and equipment.
Current and power measurement for electric motors, lighting, air compressheating and ventilation system, air-condition equipment and automation - control system.
Current, power and monitoring device.
Relay protection device.
Company introduction
1.certification
We have passed ISO9001:2015,CE,SGS approval and IEC report
2.Company profile
Tianjin Grewin is concentrating on transformers for 20 Years and complianted by ISO9001:2015,CB,IEC CB,CE etc.We're always pay great attention to its business philosophy "Quality and Honesty First".Grewin is specialized in the design and manufacture of wound components such as transformer,current sensors, chokes etc .windely used in communications,electronics,meters,industrial control,medical equipments and other fields.We are also a provider of power meters and instruments locators. 85% of its products exported to America, Europe, and Asia etc.We sincerely invite you to join us to create a bright future.
3.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)Shipping via EMS. UPS. FedEx and TNT express usually takes 3~7days dependent on the destination country.
4.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.
5.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
We manufacture transformer bushings for outdoor and indoor applications and our manufacturing program includes the following ranges :
1. Low voltage bushings in accordance with DIN 42539
- 1 kV , 250 A Low voltage bushing AB-250
- 1 kV ,630 A Low voltage bushing AB-630
- 1 kV ,1000 A Low voltage bushing AB-1000
- 1kV, 2000 A Low voltage bushing AB-2000
- 1 kV,3150 A Low voltage bushing AB-3150
2. Medium voltage Bushings in accordance with EN50180 & DIN42531
- 12.5kV,250A Indoor type transformer bushing 10Ni-250A
- 12.5 kV,250A Outdoor type transformer bushing 10Nf -250A
- 24 kV ,250A Outdoor type transformer bushing 20NF-250A
- 36 kV,250A Outdoor type transformer bushing 30NF-250A
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