Specialty Relays
Specialty Relays
AGASTAT E7000 Series, Nuclear Qualified Time Delay Relays
Seismic and Radiation Tested
In order to satisfy the grow- Qualifying Class 1E Equip - The present E7000 Series
ing need for electrical con- ment for Nuclear Power design has evolved over
trol components suitable for Generating Stations) and 40 years of continual field
class 1E service in nuclear IEEE Standard 344-1975 use in a wider range of
power generating stations, (Seismic Qualifications for industrial applications.
AGASTAT timing relays have Nuclear Power Generating On-Delay, Off-Delay and
been tested for three appli- Stations). Testing was also Four-Pole versions are avail-
cations. These E7000 Series referenced to ANSI/IEEE able for use with a choice
electropneumatic devices C37.98 (formerly IEEE of 23 coil voltages, as well
have demon strated compli- Standard 501-1978, as time delay adjustment to
ance with the requirements Standard for Seismic as long as 60 minutes.
of IEEE Standards 323- Testing of Relays).
1974 (Standard for
Test Procedure
Operate Time (milliseconds)
Test Procedure Temperature Aging Hostile Environment
Recycle Time (milliseconds)
AGASTAT timing relay Models E7012, This test subjected the relays to a tem- Since the timing relays are intended for
Time Delay (seconds)
E7022, E7014 and E7024 were tested in perature of 100C for 42 days, with per- use in auxiliary and control buildings,
Repeatability (percent)
accordance with the requirements of IEEE formance measured before and after and not in the reactor containment areas,
Contact Bounce
STD. 323-1974 (Standard for Qualifying thermal stress. a hostile environment test was per-
(milliseconds at 28VDC, 1 amp)
Class 1E Equipment for Nuclear Power formed in place of the Loss of Coolant
Seismic Aging
Contact Resistance
Generating Stations), IEEE STD. 344-1975 Accident (LOCA) test. Relays were
(milliohms at 28VDC, 1 amp)
Sufficient interactions were performed at
(Seismic Qualification for Nuclear Power subjected to combination extreme
levels less than the fragility levels of the
Data was measured and recorded and
Generating Stations) and referenced to temperature/humidity plus under/over
devices in order to satisfy the seismic
used for comparison throughout the
ANSI/EEE C37.98 (formerly IEEE voltage testing to prove their ability to
aging requirements of IEEE STD 323-
qualification test program in order to
Standard 501-1978, Standard for function under adverse conditions even
1974 and IEEE STD 344-1975.
detect any degradation of performance.
Seismic Testing of Relays). The relays after having undergone all the previous
were tested according to parameters aging simulation and seismic testing.
Seismic Qualification
Radiation Aging
which in practice, should encompass the The devices were operated at minimum
Artificially aged relays were subjected to
Relays were subjected to a radiation
majority of applications. Documented and maximum voltage extremes: 85 and
5 simulated seismic vibration, which veri-
dosage of 2.0 x 10 Rads, which is con-
data applies to timing relays which were 120 percent of rated voltage for AC
fied the ability of the individual device to 12
sidered to exceed adverse plant operat-
mounted on rigid test fixtures. The units, and 80 and 120 percent of rated
perform its required function before, dur-
ing requirements for such areas as
following descriptions of the tests voltage for DC units, with temperatures
ing and/or following design basis earth-
auxiliary and control buildings.
performed are presented in their actual ranging from 40F to 172F at 95 per-
quakes. Relays were tested in the
sequence. cent relative humidity.
Cycling with Load Aging
non-operating, operating and transi-
The radiated units were then subjected to
Baseline Performance tional modes.
27,500 operations at accelerated rate,
In addition to aging tests, a series of
with one set of contacts loaded to
baseline tests were conducted before,
120VAC, 60Hz at 10 amps; or 125VDC
and immediately after each aging
at 1 amp, and the number of mechanical
sequence:
operations exceeding those experienced
Pull-in Voltage
in actual service.
Drop-out Voltage
Dielectric Strength at 1650V 60Hz
Insulation Resistance
The SRS shape (at 5 percent damping), is defined by four points:
point A = 1.0 Hz and an acceleration equal to 25 percent of the
Zero Period Acceleration
point D = 4.0 Hz and 250 percent of the ZPA
point E = 16.0 Hz and 250 percent of the ZPA
point G = 33.0 Hz and a level equal to the ZPA
SPECIMEN 1 & 3 (E7012 SERIES)
RELAY STATE: TRANSITIONAL MODE (TD X 2)
AXIS (H + V):
TEST RUN NO. 41, 45, 60, 63
COMPOSITE OF FB/V-, SS/V-, SS/V+, FB/V+ X .707
DUE TO 45 INCLINATION OF TEST MACHINE.
Figure 1. Response Spectrum, Transitional Mode
1215
Catalog 5-1773450-5 Dimensions are shown for Dimensions are in millimeters USA: +1 800 522 6752 For additional support numbers
Revised 3-13 reference purposes only. unless otherwise specified. Asia Pacific: +86 0 400 820 6015 please visit www.te.com
Specifications subject UK: +44 800 267 666
www.te.com to change.Specialty Relays
AGASTAT E7000 Series, Nuclear Qualified Time Delay Relays (Continued)
Operation
Two basic operating types are available: In off-delay models the switch transfers
On-delay models provide a delay period the load immediately upon energization,
on energization, at the end of which the and the delay period does not begin until
switch transfers the load from one set of the unit is deenergized. At the end of the
contacts to another. Deenergizing the delay period the switch returns to its
unit during the delay period immediately original position. Reenergizing the unit
recycles the unit, readying it for another during the delay period immediately
full delay period on reenergization. resets the timing, readying it for another
full delay period on deenergization. No
power is required during the timing
period.
On-Delay Models, E7012 Off-Delay Models, E7022
(Delay on pick-up) (Delay on drop-out)
Applying for at least 50 msec voltage Applying voltage to the coil (for at
to the coil (L1-L2) starts a time delay least .050 second) will instantaneously
lasting for the preset time. During this transfer the switch, breaking the normally
period the normally closed contacts closed contacts (15 and 26), and
(35 and 46) remain closed. At the end making the normally open contacts
of the delay period the normally closed (35 and 46). Contacts remain in this
contacts break and the normally open transferred position as long as the coil is
contacts (15 and 26) make. The con- energized. The time delay begins imme-
tacts remain in this transferred position diately upon deenergization. At the end
until the coil is deenergized, at which of the delay period the switch returns to
time the switch instantaneously returns its normal position.
to its original position.
Reenergizing the coil during the delay
Deenergizing the coil, either during or period will immediately return the timing
after the delay period, will recycle the mechanism to a point where it will pro-
unit within .050 second. It will then vide a full delay period upon subsequent
provide a full delay period upon reener- deenergization. The switch remains in
gization, regardless of how often the coil the transferred position.
voltage is interrupted before the unit has
Four Pole Models, E7014,
been permitted to time-out to its full
E7024
delay setting.
With the addition of an extra switch block
at the bottom of the basic units, this
version of the E7000 Series offers four
pole switch capacity with simultaneous
timing or two-step timing. The two-step
operation is achieved by factory adjust-
ment to your specifications.
1216
Catalog 5-1773450-5 Dimensions are shown for Dimensions are in millimeters USA: +1 800 522 6752 For additional support numbers
Revised 3-13 reference purposes only. unless otherwise specified. Asia Pacific: +86 0 400 820 6015 please visit www.te.com
Specifications subject UK: +44 800 267 666
www.te.com to change.