Hertz Protection Relay

Listing ID #4119741

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Supply Type Manufacturer, Exporter, Supplier
Preferred Buyer Location All over the world

MBT 191 relay can be connected either in phase -phase or phase - neutral PT secondary circuit. Nominal voltage which is settable (50 -150 V) in the relay could be chosen according to the connection.....

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Product Details

MBT 191 relay can be connected either in phase -phase or phase - neutral PT secondary circuit. Nominal voltage which is settable (50 -150 V) in the relay could be chosen according to the connection. And the nominal frequency is settable either as 50 or 60 HZ.

Two Elements:
MBT 191 relay consists of two elements. Each element can be independently put off or set to a wide range of overfluxing setting (b1 and b2). Both elements are having definite time characteristics and four types of inverse characteristics. Each element is provided with two numbers of ^N/O^ contacts independent to each other.
Both elements can be selected appropriately to give two stages of protection for the equipment. In addition to these two elements, starting function of these elements are indicated by a starter LED and a changeover contact is available for annunciation.

Multiple Characteristics:
Both elements are provided with definite time characteristics (DTL) and four types of inverse characteristics.

Cooling Time Delay:
This relay also has resetting time feature. After trip occurs due to over fluxing, till the resetting time delay (which is settable in the relay) the starter indication will be on and the relay cannot be reset. Only after resetting the relay the breaker has to be closed again. This feature gives enough cooling time, which is necessary to cool the equipment when any over-excitation occurs and before it is restored again into the operation.

Application

Power Transformers
AC generators

Features

Both DC & AC auxiliary supply available

Drawout modular case (150X151mm cutout )

Compact design

Company Details

Easun Reyrolle, India is a leader in the field of electrical power management, a vibrant and growing industry. This is the parent company of the ERL group, which consists of ERL International Pte. Ltd : Singapore, ERL Marketing International FZE : Sharjah, ERL Phase Power Technologies Ltd : Canada, ERL Switchcraft Europe GmbH : Germany and ERL Pacific, Australia.
Easun Reyrolle has distinguished itself with an enviable range of products, systems, solutions and services that find application in electrical power transmission and distribution. The strong customer-centric approach and 30 years of domain expertise have translated into products and technology that truly bring value to customers.
One of the greatest strengths of Easun Reyrolle is that the entire product cycle right form the approval of raw materials, manufacturing, quality testing to marketing is done under one unified umbrella. ERL is quick to rise to the new challenges of changing markets and has grown rapidly, adding new products, new technologies and exploring new markets. This bold strategy has helped it emerge as one of the leading players in India in its field and is moving towards a large global presence.
A Wide Range of Business Lines
ERL provides “One Touch Access” that enables customers to source their diverse requirements from a single source to ensure efficient, effective and integrated solutions that are engineered in a seamless fashion.