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Excel Computers

Supplier From United States
Feb-07-13
Supplier : Transformers, misc telecom equipment

Verification Status



Contact Details:
460B Columbia Drive
Carrollton 30117
GA United States


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Custom capacity is acceptable.
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4000 cycles @80% DoD for effectively lower total of ownership cost.
Longer service life
Low maintenance batteries with stable chemistry.
Built in circuit protection
Battery Management System (BMS) is incorporated against abuse.
Better storage
Up to 6 months thanks to its extremely low self discharge (LSD) rate and no risk of sulphation.
Quickly recharge
Save time and increase productivity with less down time thanks to superior charge/discharge efficiency.
Extreme heat tolerance
Suitable for use in a wider range of applications where ambient temperature is unusually high:
up to +60C.
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Lithium batteries provide more Wh/Kg while also being up to 1/3 the weight of its SLA equivalent.
Function
Support parallel operation
Dec-24-21
 
Overview

In the process of semi finished and finished production of power transformers, before the newly installed transformers are put into operation and according to the state Grid's preventive test rules, it is required to test the transformer's turn ratio or voltage ratio regularly.The traditional variable ratio bridge operation is tedious, the reading is not intuitive, and the necessary conversion, the test result is only one phase change ratio value.The transformer transformer ratio tester overcomes the shortcomings of the traditional transformer ratio bridge test, the screen uses a large screen high resolution LCD screen, convenient to use in the field, with Chinese menu prompt function, simple and intuitive operation, a complete three phase change ratio test, test speed, high accuracy.



Technical parameter

range 0.910000
The accuracy of
reading 0.1 2 words or equal to 500

reading 0.2 2 words 500 3000

Reading 0.3 2 words 3000

The resolution of the
0.9 9.9999 0.0001 100 999.99 0.01 10000 and above 1

10 99.999 0.001 1000 9999.9 0.1

Working power supply AC220V 10 50Hz
Instrument weight 3.5kg
The use of temperature 10 50
Overall dimensions 260mm l 200mm W 160mmH
Relative humidity 90 no dew


Feature

Full three phase sinusoidal inverter output, the output voltage is automatically adjusted, with soft start, soft stop function, so the test speed is fast, high precision

Three-phase transformer, single-phase transformer, PT, Z type transformer ratio, group, polarity test function

Blind test function, that is, variable ratio and group test when high and low pressure connection mode is not known;

CT variable ratio polarity test function

Angle difference test function for single-phase test

Tap position can be tested up to 197
Nov-12-21
 
Ouli toroidal security system transformer are widely used in security system such as CCTV monitoring system, access control system, parking management system, fire protection system, emergency alert system, building intercom system etc..
Jan-20-22
 
Product description

The test transformer calls the booster, it is the basic test equipment used by the power station, supplying and distributing the electrical power system and the scientific research unit. Which used in the insulated intension test on all kinds of electrical products, electrical equipments and insulated materials, testing the insulated level of products, discovering the insulated objection of quizzee, scaling the capacity burdened voltage

Oil Immersed Testing Transformer 1

Technical index

Model

Capacity



KVA

High Frequency Voltage Output Voltage

KV

High Frequency Voltage Output Current mA)

Low Frequency Voltage input

Change

Tempera- ture() raised/

30 minute

V

A

YD G -1.5

1.5

50

30

200

7.5

500

10

YD G 3

3

50

60

200

15

500

10

YD G-5

5

50

100

200

25

500

10

YD G10

10

50

200

220/380

50/26

500

10

YD G20

20

50

400

380

53

500

10



30

50

600

380

79

500

10


40

50

800

380

105

500

10



50

50

1000

380

132

500

10



100

100

100

500

263

1000

10


150

100

1500

500

300

1000

10



200

100

2000

500

400

1000

10
VERIFIED
Sep-09-22
Supplier From Visakhapatnam, Andhra Pradesh, India
 
Toroidal Transformers, by meeting today's requirements for smaller, more efficient, quieter and safer products, are being accepted in an increasing range of electronic and electrical equipment With toroidal transformer smaller dimensions, lighter weight and low stray magnetic fields , you can build more compact, lower cost quality products without sacrificing performance.

Toroidal has a round shape with no air gaps, and with the primary and secondary windings uniformly distributed around the core, locks in\" the magnetic field and makes the toroidal transformer very quiet and efficient. Toroidal transformers are built around a ring-shaped core, which, depending on operating frequency, is made from a long strip of silicon steel or permalloy wound into a coil, powdered iron, or ferrite core.

We make wide range of Toroids based on customer specifications. We provide center potted, plate mounted, clamp mounted and many other types of Toroids on customer specifications.

Features
High precision winding with Jovil and Ruff machines.
High quality M4 27 CRGO core used
Class H+ 200 Deg C Dual coat Enameled copper wires used
UL approved
Center potting provided for better cooling and fixing
Tailor made according to customer specs
TYCO, PANDUIT and MOLEX connectors and crimps used for UL approved models
Custom made parts are designed and developed to meet specific requirements.

Standards
We follow Indian and UL standards.
We can provide UL 5085-1 and 5085-2
We can make our product compatible with all international standards

Applications
Used medical and audio equipment
Used in voltage stabilizers
Used in electronics circuits
Used in power supply units
Used in variacs
Used in high precision equipment
VERIFIED
Sep-09-22
Supplier From Visakhapatnam, Andhra Pradesh, India
 
Control transformers are mostly used for industrial applications where electromagnetic devices are used such as solenoids, contactors and relays. Also control transformers can be utilized in industrial electrical applications for regulating voltages through electrical and electronic circuits.

We make wide range of control transformers with E-I Lamination core and with various termination styles to suit for customer applications either single phase or Two phase or Three phase as per customer requirements . We provide termination with lead wires, terminal blocks, Din rails, solder points, screws, and terminal connectors. We can provide EI transformers up to 10kVA. We can provide with electrostatic shields, Thermal protector switches and circuit breakers.

Features
Insulation Class as per UL/IS (A,B,F,H)
C and L clamps are provided according to specifications.
High quality Terminal blocks are provided.
High quality XLPE leads wires used.
Low loss EI stampings used for high efficiency.
High quality hardware used.
Glass filled Nylon Bobbins used.
Flame retardant insulation tapes used inside.
High quality insulation used.
Fiber glass sleeves used for external wires.
Compact in space
Cost effective
Particularly well suited for resin cast
Less in weight
UL Approved

Standards
We follow IS11171.
Compatible to IEC61558-1
We can provide UL 5085-1 and UL 5085-2

Applications
Used in converters, inverters, instruments and power supplies.
Used in many types of machines and accessories.
Used in electronic sensing circuits.
Used in voltage stabilizers.
Used in power conditioning equipments.
Used in Rectified Modules

Verification Status