Products

Electrical & Grid

Transformers

3-phase Pad-mounted Transformer

Brand: WISHPOWER
Standard: GB/T10228-1997、GB6450-1986、IEC726
Factory Price Pad Mounted Transformers
Vector Group: Yyn0, Dyn11
Insulation Level: LI75AC35/AC3 LI170AC70/AC3

Contact Now

DESCRIPTION

Specification

Primary Voltage (V)	33000
Model	TR D3SP-15-33000-220y/127	TR D3SP-30-33000-220y/127	TR D3SP-45-33000-220y/127	TR D3SP-75-33000-220y/127	TR D3SP-112.5-33000-220y/127	TR D3SP-150-33000-220y/127	TR D3SP-225-33000-220y/127	TR D3SP-225-33000-220y/127	TR D3SP-300-33000-220y/127
KVA Rating	15	30	45	75	112.5	150	225	300	500
No-Load Loss (W)	90	126	170	240	315	360	520	660	1050
Full Load Loss at 85°C (W)	236	433	603	917	1273	1600	2402	3063	4481
Total Losses at a load factor of 80% (W)	241	403	556	827	1130	1384	2057	2620	3918
80% load for distribution transformers (Efficiency in % at 85°C)	98.03	98.35	98.48	98.64	98.76	98.86	98.87	98.92	99.03
Impedance (85°C)	2.0~4.0	2.0~4.0	2.0~4.0	2.0~4.0	2.0~4.0	2.0~4.0	2.0~4.0	2.0~4.0	2.0~4.0
Oil Weight (L)	520	520	530	555	560	610	610	630	650
Total Weight (KG)	1500	1530	1560	1580	1750	1850	2180	2500	3100
Dimension (mm) A	2050	2050	2050	2050	2050	2050	2050	2050	2050
B	830	830	830	830	840	850	880	880	930
ØD	820	820	820	820	820	820	820	820	820
H	1900	1900	1900	1900	1900	1900	1900	1900	1900
Winding Material	AL-AL	AL-AL	AL-AL	AL-AL	AL-CU	AL-CU	AL-CU	AL-CU	AL-CU

If you are interested in our transformers and related transformer accessories, please get more information and professional solutions through this website or directly through info@wishpower.net

What is the 3-phase Pad–mounted Transformer?

The 3-phase pad-mounted transformer is an electrical device used for the distribution of power safely, reliably, and efficiently mainly in residential, commercial, and light industrial sites. Characterized both by its tamper-resistant enclosure and its installation on a concrete pad at ground level, this cell is enclosed. With this design, overhead power lines are eliminated and safety, aesthetics, and easy maintenance are improved. The transformer works on three-phase electrical systems, which are usually supplied to carry higher power at the usually more efficient than single phase systems. Three sets of windings– primary and secondary are configured inside the unit to reduce the high-voltage electricity from the distribution network to a lower voltage compatible with end users. The design guarantees equal power distribution among the three phases, reducing energy losses and keeping the voltage balance of the system. This equipment is pad mounted with bushings and connection points completely enclosed to prevent unauthorized entry, making them good for urban or suburban environments where public safety is of concern.

What do pad-mounted transformers do?

Modern power distribution systems depend on pad-mounted transformers to reduce high-voltage electricity coming down the main distribution lines to lower voltages which can be safely and efficiently utilized by homes, businesses, and industrial facilities. Typically installed at ground level and housed in secure, tamper-proof enclosures, these units are most suitable for use where overhead transformers are impracticable or undesirable (urban or suburban scene). At high voltages, up to 7.2 kV, and 35 kV, these transformers take electricity and convert it to the usable voltages suitable for the connected load, e.g. 120/240 V or 480 V. To guarantee safe power for consumers to operate and interconnected equipment, they lower the voltage which in turn lowers the power that is being delivered to them. Pad-mounted transformers not only provide connection points from underground power distribution networks to end-user facilities but also provide temporary connection points for systems installed for repairs. They replace the need for exposed overhead lines, making them safer, more beautiful, and more resistant to disruptive weather or outside interference. Components are protected in their secure enclosures from tampering, vandalism, and environmental factors such as rain, snow, and debris.

Are pad-mounted transformers grounded?

That is to say, pad-mounted transformers are ground at the time of installation to ensure safety, proper operation, and system reliability. A system of power distribution with multiple functions is, however, dependent on grounding, that is, a critical matter concerning their design and the functioning of the system. Grounding pad-mounted transformers form a safe path for the fault current to flow to the earth thereby reducing the chance of electrical shock or equipment damage caused by short circuits, lightning strikes, or insulation failure. Normally a transform transformer’s grounding system consists of a grounding conductor connecting the grounding or metal enclosure, the internal components, and (if applicable) the neutral point to a grounding rod or grid buried in the ground. It also provides the transformer with a reference point for its voltage levels in the electrical system and helps stabilize the transformer voltage levels. It minimizes voltage fluctuations and makes sure the system is operating in its designed parameters. In addition, the transformer and connected equipment are protected from transient events such as switching surges or lightning, by grounding.

Certificate

Factory

Hot Tags: 3-phase Pad-mounted Transformer, transformer, made in Thailand available, manufacturers, ISO factory, wholesale, KEMA, high quantity, best, price, low to high voltage

Video

Resources and downloads