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Digital Energy
Generator
Generator Protection
Select a typical application to view the associated one line diagram, functions,
and product order codes.
Direct Connection - Low Impedance Grounding
Unit Connected - High Impedance Grounding
Hydro with Parallel Branch Winding
Pumped Storage
In-Zone Transformer
Direct Connection - Low Impedance Grounding
Typical Functions
87G
87RGF
40
32R
51V
39
49
Generator Stator differential
Restricted ground fault
Loss of excitation
Reverse Power
Voltage restrained
overcurrent
Vibration
Thermal Overload
Functions
Typical Product Order Code
Typical Functions
G30-H00-HCH-F8L-H6A-M8N-PXX-UXX-WXX
489-P5-HI-A20-E
+ Additional Functions
G30-H00-HCH-F8L-H6A-M8N-P5C-U5F-WXX
489-P5-HI-A20-E
Lockout - Standalone Integrated
HEA61-A-RU-220-X2
G30-H00-HCH-F8L-H6A-M8N-P5C-U5F-W4L
Unit Connected - High Impedance Grounding
Typical Functions
87G
27TN/59N
40
32R
21P
39
49
Generator Stator differential
100% Stator Earth Fault
Loss of excitation
Reverse Power
Phase Distance
Vibration
Thermal Overload
Functions
Typical Product Order Code
Typical Functions
G60-H00-HCH-F8L-H6A-M8N-PXX-UXX-WXX
489-P5-HI-A20-E
+ Additional Functions
G60-H00-HCH-F8L-H6A-M8N-P5C-U5F-WXX
489-P5-HI-A20-E
Lockout - Standalone Integrated
HEA61-A-RU-220-X2
G60-H00-HCH-F8L-H6A-M8N-P5C-U5F-W4L
Hydro with Parallel Branch Winding
Typical Functions
87G
60SP
40
32R
21P
39
49
Generator Stator differential
Split phase protection
Loss of excitation
Reverse Power
Voltage restrained
overcurrent
Vibration
Thermal Overload
Functions
Typical Product Order Code
Typical Functions
G60-K00-HCH-F8L-H6A-M8N-PXX-UXX-WXX
+ Additional Functions
G60-K00-HCH-F8L-H6A-M8N-P5C-U5F-WXX
Lockout - Standalone Integrated
HEA61-A-RU-220-X2
G60-K00-HCH-F8L-H6A-M8N-P5C-U5F-W4L
Pumped Storage
Typical Functions
87G
27TN/59N
40
32R
21P
39
49
Generator Stator differential
100% Stator Ground
Loss of excitation
Reverse Power
Phase Distance
Vibration
Thermal Overload
Functions
Typical Product Order Code
Typical Functions
G60-K00-HCH-F8L-H6A-M8N-PXX-UXX-WXX
+ Additional Functions
G60-K00-HCH-F8L-H6A-M8N-P5C-U5F-WXX
Lockout - Standalone Integrated
HEA61-A-RU-220-X2
G60-K00-HCH-F8L-H6A-M8N-P5C-U5F-W4L
In-Zone Transformer
Typical Functions
87GT
27TN
40
32R
39
49
Generator Transformer differential
3rd Harmonic Neutral Undervoltage
Loss of excitation
Reverse Power
Vibration
Thermal Overload
Functions
Typical Product Order Code
Typical Functions
G30-K00-HCH-F8L-H6A-M8N-PXX-UXX-WXX
+ Additional Functions
G30-K00-HCH-F8L-H6A-M8N-P5C-U5F-WXX
Lockout - Standalone Integrated
HEA61-A-RU-220-X2
G30-K00-HCH-F8L-H6A-M8N-P5C-U5F-W4L