Broyce Control P9620 User manual

Broyce Control Ltd., Pool Street, Wolverhampton, West Midlands WV2 4HN. ngland
Tel: [phone] Fax: [phone] mail: [email protected] Web: www.broycecontrol.com
The information provided in this literature is believed to be accurate (subject to change without prior notice); however, use of such information shall be entirely at the user’s own risk .
P9620-2-A 1
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P
Type: P962
Type: P962Type: P962
Type: P9620
00
0
Definite Time (DT)
Definite Time (DT)Definite Time (DT)
Definite Time (DT) Earth Fault Relay
Earth Fault Relay Earth Fault Relay
Earth Fault Relay
 True R.M.S. measurements
 Adjustable Low-set tripping threshold
 Adjustable High-set tripping threshold with option to disable
 Adjustable Definite Time setting (appli able to Low-set triggering only)
 Instantaneous tripping on High-set triggering
 Test and Reset button for simulating and learing of fault ondition
 Red LED indi ation of Low-set or High-set triggering and tripping
 Green LED indi ation for Auxiliary power supply presen e
 Mi ropro essor based (self he king) with non-volatile memory
 Terminals suitable for 2 x 2.5mm
2
wires ( omplete with prote tive over)
•G N RAL OV RVI W
The P9620 (from the P9600 series family of IDMT/DT relays) is a microprocessor ased relay
designed to monitor and detect Earth faults in 3-phase applications. Typically the P9620 is
wired in conjunction with external current transformers of the feeder to e protected.
The adjustments and indicators are laid out such to help the user during set-up and fault
finding. The adjustment for the Low
LowLow
Low-
--
-set
setset
set for example has its corresponding red LED positioned
a ove it so it is clear to which function this LED relates to. The same also applies to the High
HighHigh
High-
--
-
set
setset
set adjustment and LED. Adjustment and LED operation is explained further on the next page.
The adjusta le time delay Delay
DelayDelay
Delay is assigned to the Low
LowLow
Low-
--
-set
setset
set triggering only. The High
HighHigh
High-
--
-set
setset
set does
not have any adjusta le delay and hence will trip instantaneously if triggered. If required, the
High
HighHigh
High-
--
-set
setset
set can e set to disa led.
A Test mode is provided (also accessi le with the tamperproof transparent cover closed) to
confirm the correct operation of the internal relay. The relay will energise when the “TEST”
“TEST”“TEST”
“TEST”
utton is pressed and de-energise when the “RESET”
“RESET”“RESET”
“RESET” utton is pressed.
•OP RATION
Example 1.
When an Earth fault occurs and the level of current exceeds the
“Low
“Low“Low
“Low-
--
-set Io>”
set Io>”set Io>”
set Io>” trip threshold, the corresponding red LED a ove the
adjustment illuminates. If the current remains for greater than the time
delay set y the adjustment marked “Delay”
“Delay”“Delay”
“Delay”, the relay will then
energise. The red LED will then flash indicating a tripped condition.
If the fault current has een removed, pressing the “RESET”
“RESET”“RESET”
“RESET” utton
will return the relay ack to normal operation. The red LED will then
extinguish.
Example 2.
If a fault current occurs such that it exceeds the “High
“High“High
“High-
--
-set Io>>”
set Io>>” set Io>>”
set Io>>” trip
threshold (and efore the “Delay”
“Delay”“Delay”
“Delay” has had time to elapse), the relay
will de-energise with no delay. The red LED a ove the “High
“High“High
“High-
--
-set
set set
set
Io>>”
Io>>”Io>>”
Io>>” adjustment will flash.
In the event of an arth fault condition, the basic sequence of
events is shown below.
 Assuming High-set trip is enabled.
•PR S NTATION
1. “Delay” adjustment* 5. “Low-set triggered” red LED indication
2. “Low-set Io>” trip adjustment* 6. “High-set triggered” red LED indication
3. “High-set Io>>” trip adjustment* 7. “T ST” utton
4. “Power supply” green LED indication 8. “R S T” utton
* accessi le only when the front cover is open







START
EARTH FAULT
occurs
Low-set Io>
triggered
Run delay
t>
High-set
Io>>
triggered?
N
Y
TRIP!
Delay
t>
complete?
N
Y

Dims:
W x H. 96 x 96mm (front)
W x H. 89.5 x 89.5mm (main ody)
L. 107mm

Broyce Control Ltd., Pool Street, Wolverhampton, West Midlands WV2 4HN. ngland
Tel: [phone] Fax: [phone] mail: [email protected] Web: www.broycecontrol.com
The information provided in this literature is believed to be accurate (subject to change without prior notice); however, use of such information shall be entirely at the user’s own risk .
P9620-2-A 2
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•S TTING & OP RATION
Setting of the P9620 is carried out using the 3 potentiometers located ehind the
transparent cover.
1. Delay
The adjustment for “Delay (s)”
“Delay (s)”“Delay (s)”
“Delay (s)” sets the period that
the P9620 waits efore the relay energises once the
“Low
“Low“Low
“Low-
--
-set”
set”set”
set” threshold “Io>”
“Io>”“Io>”
“Io>” has een exceeded.
2. Low-Set Trip threshold (Io>)
The adjustment for the “Low
“Low“Low
“Low-
--
-set”
set”set”
set” can e set from
0.1 to 2A. When the threshold is exceeded due to an
Earth fault condition, the corresponding red LED a ove
the adjustment illuminates indicating activity. When
tripping finally occurs, the red LED will then flash.
3. High-Set Trip threshold (Io>>)
The adjustment for the “High
“High“High
“High-
--
-set”
set”set”
set” can e set from
x1 to x10 then disa le i.e.
The scale markings are multipliers of what has een
set on the “Low
“Low“Low
“Low-
--
-set”
set”set”
set” threshold. For example if the
“Low
“Low“Low
“Low-
--
-set”
set”set”
set” is set to 1.5A and “High
“High“High
“High-
--
-set”
set”set”
set” x6, this will e
the equivalent of 1.5 x 6 = 9A.
When the threshold is exceeded due to an Earth
fault condition, the corresponding red LED a ove the
adjustment illuminates indicating activity. When tripping
finally occurs, the red LED will then flash.
 If tripping occurs whereby the High-set level is exceeded, only the LE for the
High-set will illuminate/flash. This allows the user to clearly identify which threshold
was triggered causing the trip.
 There is no delay associated with High-set therefore, tripping is instantaneous.
•L D FUNCTION SUMMARY
 The green LE will remain illuminated for as long as power is applied to the Aux.
connections (Terminals 1 and 2).
In response to an Earth fault condition:
Status Io> Io>>
Normal
Low-set triggered
Low-set Tripped
High-set triggered
High-set Tripped
In response to Test and Reset utton operation:
Button press Io> Io>>
Key:
LED off
LED on
LED flashing
•INSTALLATION
•B FOR INSTALLATION, ISOLAT TH SUPPLY. THIS PRODUCT IS
D SIGN D TO CONN CT TO S V RAL TYP S OF CIRCUITS.
NSUR ALL AR ISOLAT D
•Remove the P9620 from the packaging.
•Lift the raised part of the side clip in order to remove from the housing. Carry
this out on each side.
•Insert the P9620 into the panel cut-out and fit the side clips ack on to the
housing.
•Slide the clips towards the front of the unit until they come in to contact with
the reverse of the panel. The unit is now secured in place.
•Connect wires to the rear terminals as required.
•The P9620 is now ready for powering and setting.
 The front window of the P9620 is supplied with a clear protective film which can be
removed as and when necessary.
•NORMAL OP RATION
•Apply power to the unit and the green “Power supply”
“Power supply”“Power supply”
“Power supply” LED will illuminate.
•T ST MOD
•Press and hold the utton and the relay will energise. Both the red
“Io>”
“Io>”“Io>”
“Io>” and “I
“I“I
“Io>>”
o>>” o>>”
o>>” LED’s will illuminate.
•Release the utton and the relay will remain energised.
•Press the utton to de-energise the relay. Both red LED’s will
extinguish.
 Testing should be carried out on a regular basis to check the integrity of the
P9620.
O NOT use this product to provide a means of isolating circuits in
order to work on when placed in the “TEST”
“TEST”“TEST”
“TEST” mode. This should only be
done by means of operating isolators, circuit breakers or other
methods of removing power in this application.
Installation work must be carried
out by qualified personnel.

Broyce Control Ltd., Pool Street, Wolverhampton, West Midlands WV2 4HN. ngland
Tel: [phone] Fax: [phone] mail: [email protected] Web: www.broycecontrol.com
The information provided in this literature is believed to be accurate (subject to change without prior notice); however, use of such information shall be entirely at the user’s own risk .
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Housing:
Flame retardant Lexan
Protection: IP55 / IP20 (rear)
Weight: ≈ 450g
Mounting: Panel mounting. Cut-out = 91 x 91mm (± 0.5mm)
Max. panel thickness: 12mm
Terminal conductor size: 0.05 - 2.5mm
2
(30 - 12AWG)
Recommended tightening
torque: 10in l (1Nm)
Wire stripping length: 0.24 – 0.30in (6 – 7.5mm)
Approvals: Conforms to IEC. CE and and RoHS Compliant.
EMC: Immunity: EN/IEC 61000-6-2
Emissions: EN/IEC 61000-6-4
Generic: IEC 60255-26 (EMC), IEC 255-3, IEC
60255-151
( ) Bold digits in rackets refer to terminal num ers on the rear of the unit.
Options:
The P9600 range also includes individual Overcurrent or Earth fault relays
availa le with either IDT or IDMT tripping characteristics. Please refer to separate
data sheets.
•T CHNICAL SP CIFICATION
Supply voltage Un (1, 2): 115VAC ±15%
230VAC ±15%
(Voltage should be specified at time of ordering)
Rated frequency: 50/60Hz
Isolation: Over voltage cat. III
Rated impulse
withstand voltage: 4kV (1.2 / 50µS) IEC 60664
Power consumption: 3W max.
Rated current input In: 5A (directly connected)
Rated frequency: 50Hz
Burden: <0.4VA @ In
Overload: 4 x In (continuous)
External CT’s (15, 16): Class P recommended. (with 5A secondary)
Earth fault settings:
Low-set trip (I
o
>): 0.10 – 2.0A (2 – 40%)
Low-set definite time (t>): 0.05 – 1.0s
High-set trip (I
o
>>): x1 – x10 or disa le ( )
High-set definite time: Instantaneous (<50mS)
Pick up value: +2% of trip setting
Accuracy:
Protection thresholds: ± 5%
Time delay (DT): ± 5% (with a minimum of 50mS)
Repeat accuracy: ± 0.5% @ constant conditions
Am ient temperature: -10 to +60°C
Relative humidity: +95% (non-condensing)
Output:
(RL1 - 3, 4, 5): 1 x SPDT relay
Output rating: AC1 250V 8A (2000VA)
AC15 250V 5A (1250VA)
DC1 25V 8A (200W)
Electrical life: ≥ 150,000 ops at rated load
Dielectric voltage: 2kV AC (rms) IEC 60947-1
Rated impulse
withstand voltage: 4kV (1.2 / 50µS) IEC 60664
Max. DC Load Breaking Capacity Electrical Endurance
•CONN CTION DIAGRAM
L1
L2
L3
N
A1
A2
RL1
Aux.
9
I o
11
10
12
13
14
15
16
1
3
2
4
5
6
7
8
•DIM NSIONS
96
96
10
95
89.5
96
12
80
Front view Side view
All dimensions are in mm.