Product Description
Rooq's three-phase pad-mounted transformer is offered in a variety of designs and configurations.Some special designs and options may require additional engineering, factory coordination, unusual application requirements or special manufacturing needs.Higher impedances limit secondary fault currents such that coordination with secondary low voltage moldedcase circuit breakers is usually possible. (Low impedances are also available if required for paralleling, and so on.) Standard color is pad-mounted green.
Features:
1 - Common power ratings: 30 - 2500 kVA.
2 - Designed for voltages of ≤ 36 kV. Specific figures are not given for this parameter because of the wide variety of voltages used.
3 - Transformers can be supplied on demand to run at two different primary voltages, the shift between these input voltages has two
basic alternatives:
4 - with a primary tap changer which can be switched with no load and no applied voltage or by changing terminals under the cover.
5 - The secondary voltage under no load is allocated at 400V, 415V, 433V, though other voltages can be supplied on demand.
6 - When usage requires two voltages, transformers with two simultaneous voltages can be supplied. In this case the no-load voltages are set to 400V(230V),415V(240V),433V(230V) .
7 - Accordance with the highest voltage for the material,being the level immediately above the rated voltage.
| Material maximum admissible voltage |
12kV |
17,5kV |
24kV |
36kV |
| Withstand voltage |
28kV |
38kV |
50kV |
70kV |
| Basic insulation level |
75kV |
95kV |
125kV |
170kV |
Standard
IEC/BSEN 60076,IEC61330,IEC62271,IEC60721, IEEE C57.12.00 etc.
Construction details
Outside
1 - Four lifting hooks
Medium voltage compartment
1 - Bolted-on terminal compartment with removable front sill Hinged, lift-off cabinet doors.
2 - Interlocked hex-head or penta-head bolt padlock handle operates a cam assembly that is part of the three point door latching echanism.
3 - Hex-head or penta-head bolts must be removed from the flange formed on the steel high/low barrier before the HV door can be opened-not shown.
4 - Removable neutral ground strap.
5 - Tank ground pads.
6 - Steel high/low voltage compartment barrier.
7 - Nameplate.
8 - Fill plug and self-actuating pressure relief device
9 - Externally operated no load
10 - Tap changer
11 - Drain valve and sampling device
Low voltage compartment
1 - Main circuit breaker
2 - Current transformer(CT)
3 - Meter
4 - Outgoing feeder
Founded in 2008, registered capital of 108 million CNY, ROOQ electric group.;ltd is a high-tech enterprise specializing in the design, manufacture, sales and service of products such as power transformers, complete sets of electrical appliances, high and low voltage components, and smart city control systems.
Since its establishment, ROOQ has always adhered to product quality first, as the guide of "customer demands". It has successively served for T2 Wenzhou Airport, Ski Resort, Zhejiang National Defense Force, Hangzhou-Wenzhou Railway, Cangnan gymnasium, Country Garden Community, First People's Hospital of Songxi, Tema Road Lighting of Ghana, Presidential Palace of Burundi, Ministry of Energy of Rwanda, National Hospital of Mozambique, Refinery of CNPC in Thailand, State Television of Uzbekistan, Gold mine of Kyrgyzstan, National Data Center of Kazakhstan etc. With years of innovation and professional manufacturing experience, we have more than 20 independent intellectual property rights, and strong advantages in special product customization and EPC power engineering general contracting now. Stable quality assurance and timely delivery capabilities have won widespread trust from users around the world.
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