Specifications

February 2007
16-52
For more information visit: www.eaton.com CA08101001E
Transfer Switches
16
Transfer Switch Equipment
Transfer Switch — Optional Components
Optional Components
Metering
IQ Analyzer
Highly accurate source or load meter-
ing can be provided for advanced
energy management and power quality
analysis. Meeting the stringent ANSI
C12.16 Class 10 accuracy requirement,
Eaton’s IQ Analyzer meter can measure
parameters including voltage, current,
power (watts, vars and VA), energy,
frequency, demand, power factor,
%THD (voltage and current), K factor,
CBEMA derating factor and crest factor.
IQ Analyzer can also communicate with
Eaton's industry accepted IMPACC
and PowerNet Power Management
Systems. (See Eaton TD 17530, available
on line, for more information.)
Protective Relaying
Protective Relay
For paralleling (including soft loading/
unloading) applications, utility grade
protective relaying is optional, and
offered when utility interconnection
standard requires additional protection
on top of that provided by ATC-5000
controller. The following protective
relays can be included in Eaton Soft
Load ATS:
■ Beckwith M-3410A — See Appendix B
for details.
■ Beckwith M-3520.
■ Schweitzer SEL-351.
■ Schweitzer SEL-547.
■ Basler BE1-951.
■ Basler BE1-IPS100.
All above protective relays provide
protection necessary to satisfy IEEE
P1547 standard “IEEE Standard for
Interconnecting Distributed Resources
with Electric Power Systems.” See
Table 16-46.
Table 16-46. Protective Relays

Generator Protective Feature S = Standard Function; O = Optional Function.

Utility Protective Feature.
ANSI/
IEEE
Number
Function ATC-5000 Eaton
Digitrip
(Optional)
Utility Intertie Protection
Beckwith
M-3410A
(Optional)
Beckwith
M-3520
(Optional)
Schweitzer
SEL-547
(Optional)
Schweitzer
SEL-351
(Optional)
Basler
BE1-951
(Optional)
Basler
BE1-IPS100
(Optional)
21 Phase Distance O
24 Overexcitation V/Hz SS
25 Synchronizer S
Synch Check S S S S S S
27 Undervoltage S

SSS SSS
27G Ground Undervoltage S O
32 Reverse/Forward Power S

SSS SSS
40 Loss-of-Field S
46 Negative Sequence Overcurrent S

SS
47 Negative Sequence Overvoltage S S S S S
50 Instantaneous Phase Overcurrent S

S

SSSS
50N Instantaneous Ground Overcurrent O

SSSS
51 ac Time Overcurrent S

S

SSS
51N ac Time Ground Overcurrent O

SS SSS
51V Voltage Restrained Overcurrent S S S
59 Overvoltage S

SSS SSS
59G Ground Overvoltage S O S
59I Peak Overvoltage S O
60FL VT Fuse-Loss Detection S S S S
62 General Purpose Timers S
67 Phase Directional Overcurrent S S S
67N Residual Directional Overcurrent O S
72 Phase/Vector Shift S

79 Reconnect Enable Time Delay S S S S
81 O/U Over/Underfrequency S

SSS SSS
81R Rate of Change of Frequency O S