HTT News

This month company HTT has delivered a 6-storey cast resin transformer to a well known customer.

This month HTT has delivered a 20MVA cast resin transformer to a well known customer in the paper industry: In both terms – dimensions and weight – the production possibilities have been fully exploited.

This article will describe a combining reactor which is used to control currents between PWM inverters to supply a motor. The target is to limit the current ripples caused by the inverters. Therefore it is important that the inductance between the inverters is high enough but is low enough between motor and inverters to limit…

How is the brand HTT perceived? What are its characteristics and what is of importance for customers and employees? When it comes to position HTT as an excellent provider in the market and as an attractive employer in our region, these questions must not be forgotten. To reach this goal, a survey was created at…

On 31.01.2018 company HTT had invited the VDE-Bezirksverein Kassel e.V. for a visit of their factory which a total of 22 members of the VDE did not want to miss. After the greeting by the company founder Mr. Joachim Dunkel and his coloured and exciting review on the company history and the development in the…

The test field of company HTT disposes beside the equipment for performing routine test according to IEC 60076 also over a lightning impulse voltage test arrangement. Tests up to 300kV can be performed in dependence of the technical data of the test specimen. This month company HTT has successfully carried out the first „BIL-test“ with…

The inquiry for transformers with conductor material aluminum rises continuously. This is due to the growing difference between prices for copper and aluminum transformers after introduction of the eco-design directive 1st of July 2015: the prices clearly developed in favor for aluminum. Taking this fact into account company HTT has ordered and installed a brand…

The Curtis univercity of Malaysia recently received four cast resin transformers for research and teaching: read more about in Borneo Post online (17.07.2017)     

Interview: ecodesign directive

As the ecodesign directive has been incorporated in german norm DIN EN 50588-1 it was necessary to update the information shown on the rating plates accordingly. This week (03/2017) the responsible german industry control office has checked without objection our rating plates. In case of questions don’t hesitate to contact us: + 49 (0) 55…

When the Pioneering Spirit is launched, there will be individual workmanship from Hannoversch Münden, Germany, on board – and not one piece, but fifty of it. HTT Hochspannungstechnik und Transformatorbau GmbH, manufacturer of transformers with a focus on resin-encapsulated transformers since 1985, already made their contribution to the world’s biggest work boat in the years…

Continual growth and consequent investments into pioneering production technology establish HTT as a competent and competitive company. A transformer is not »simply« just a transformer – it must be optimally adapted to the respective task and economical to purchase. It should work in a way that is extremely energy efficient and also be available at…

In July 2008 Schmid Silicon Technology GmbH (SST), the leading technology, equipment and EPC provider for high-end solar and electronic grade polysilicon and monosilane gas production plants, honored HTT Hochspannungstechnik und Transformatorbau in Hann. Münden / Germany with the order of one very special three- phase cast resin transformer for SST’s first Monosilane-based semi-industrial plant…