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Generator Protection Relays DOWNLOAD PDF
Generator Protection .pdf (135kb)
Selection Table 2 pages
MRMF

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TYPE: Mains Decoupling Relay

KEY FEATURES: G59 /Islanding Relay with Over / Under Frequency, Over / under Voltage and Loss of Mains. (MRMF - 1 Vector Surge) (MRMF - 2 df/dt)

ANSI Nos. 27, 59, 81, 78

CASE: Draw out case size 100 ( 212 deep ). Panel cut out 99 width x 159 height.

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MROS


TYPE: Mains Failure

KEY FEATURES: Similar to MRMF but Loss of Mains only

ANSI Nos. 78

CASE: Draw out case size 100 ( 212 deep ). Panel cut out 99 width x 159 height.

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MRFT

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TYPE: Frequency Relay

KEY FEATURES: Over / Under Frequency Relay df/dt

ANSI Nos. 81

CASE: Draw out case size 100 ( 212 deep ). Panel cut out 99 width x 159 height.

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MRVT


TYPE: Three Phase Under / Over Voltage Relay

KEY FEATURES: Two Stage Under and Overvoltage Relay with Instantaneous or Definite Time settings

ANSI Nos. 27, 59

CASE: Draw out case size 100 ( 212 deep ). Panel cut out 99 width x 159 height.

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MSP - UV


TYPE: Undervoltage Relay

KEY FEATURES: Single Phase Definite Time Undervoltage Relay with two line LCD display

ANSI Nos. 27

CASE: Draw out case size 100 ( 212 deep ). Panel cut out 99 width x 159 height.

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MSP - OV


TYPE: Undervoltage Relay

KEY FEATURES: Single Phase Definite Time Overvoltage Relay with two line LCD display.

ANSI Nos. 59

CASE: Draw out case size 100 ( 212 deep ). Panel cut out 99 width x 159 height.

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MSP -UO


TYPE:
Undervoltage & Overvoltage Relay

KEY FEATURES: Single Phase Definite time Under / Overvoltage Relay

ANSI Nos. 27, 59

CASE: Draw out case size 100 ( 212 deep ). Panel cut out 99 width x 159 height.

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MIRV - NVD


TYPE:
Neutral Voltage Displacement Relay

KEY FEATURES: Single Phase Definite Time Over Voltage Relay

ANSI Nos. 59n

CASE: Draw out case size 100 ( 212 deep ). Panel cut out 99 width x 159 height.

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MRRP - 1/3

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TYPE: Reverse Power Relay

KEY FEATURES: Single or Three Phase Definite time Under / Over Power Relay

ANSI Nos. 32

CASE: Draw out case size 100 ( 212 deep ). Panel cut out 99 width x 159 height

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MRNS

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TYPE:
Negative Sequence Relay

KEY FEATURES: Sensitive Definite Time and Inverse Time.Negative Sequence Relay

ANSI Nos. 46

CASE: Draw out case size 100 ( 212 deep ). Panel cut out 99 width x 159 height.

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MRFF

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TYPE:
Field Failure Relay

KEY FEATURES: Selectable two Stage Field Failure (Mho or Offset Mho). Three Phase Voltage Supervision Relay

ANSI Nos. 40

CASE: Draw out case size 100 ( 212 deep ). Panel cut out 99 width x 159 height.

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MRDG


TYPE:
Field Failure Relay

KEY FEATURES: Selectable two Stage Field Failure (Mho or Offset Mho). Three Phase Voltage Supervision Relay

ANSI Nos. 40

CASE: Draw out case size 100 ( 212 deep ). Panel cut out 99 width x 159 height.

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MIRD - G

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TYPE:
Generator Differential Relay

KEY FEATURES: Sensitive two stage Microprocessor
based Biased Differential Relay.

ANSI Nos. 87G

CASE: 19 inch Rack mounted format

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MRI - V

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TYPE:
Voltage Controlled O/C

KEY FEATURES: Digital Definite Time or Inverse. Time Voltage Controlled Overcurrent Relay based Biased Differential Relay.

ANSI Nos. 50V, 51V

CASE: Draw out case size 100 ( 212 deep ). Panel cut out 99 width x 159 height.

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MSP - CS


TYPE:
Check Synchronising Relay

KEY FEATURES: Definite Time Check Synchronising Relay with two line LCD display.

ANSI Nos. 25

CASE: Draw out case size 100 ( 212 deep ). Panel cut out 99 width x 159 height.

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