Vigilohm System - engineering site - Schneider Electric

E19502
MERLIN GERIN
XML316
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1. display indicating measurements
concerning the overall installation or each
monitored circuit, and information
concerning the device settings;
2. red self-test light, indicating device faults.
3. light indicating that a transient fault has
occurred.
4. 5 lights indicating the insulation level.
5. instruction manual stored in a drawer on
the front face
6. sealable cover ensuring tamperproof
settings.
7. function keys for:
c accessing earth coupling capacitance
readings;
c setting thresholds;
c accessing three last values of transient
insulation faults;
c reading measurements made on individual
circuits by the internal locator;
c remote access to faults detected by XL308
or XL316 detectors;
c choice of language.
8. two indicator lights continuously display
the insulation level of the overall installation.
9. 8 or 16 indicating lights indicate faulty
circuits.
10. light indicating that a transient fault has
occurred.
test
i
auxiliaries
Cardew surge limiter: page 43.
ZX limiting impedance to create an
impedance-earthed neutral: page 44.
PHT1000 subassembly if the device is to be
used on 1000-1700 V installations: page 44.
type of installation to be monitored
AC or mixed
phase-to phase voltage
AC/DC IT systems with XML308/316 connected to neutral < 760 or 1700 V AC (1)
with XML308/316 connected to phase < 440 or 1000 V AC (1)
frequency
45-400 Hz
size of installation
0 to 30 km of cable
DC or rectified line voltage < 500 or 1200 V DC (1)
IT systems
electrical characteristics
ohmmeter
digital
range for insulation resistance readings
0.1 to 999 kΩ
signalling for overall instal. number of thresholds 2 (sealable settings)
for each circuit number of thresholds 1 (sealable settings)
threshold settings for overall instal. 1st threshold (preven.) 1 to 299 kΩ
instal. and circuits 2nd threshold (fault) 0.2 to 99.9 kΩ
number of toroids that can be connected XML308 8
(1 per channel) XML316 16
polling time
15 s. per channel
dielectric strength
2500 V
auxiliary supply voltage 50/60 Hz 115/127 V AC
220/240 V AC
380/415 V AC
500/525 V AC
auxiliary supply voltage tolerances -15 % to +10 %
maximum device consumption
30 VA
measurement voltage
6 V
measurement current
5 mA max.
50 Hz/DC impedance 22 kΩ
device test
self-test and manual test
failsafe feature (2)
as standard
changeover output contact quantity 3 (1 failsafe)
breaking capacity of AC 400 V p.f. = 0.7 3 A
output contacts 230 V p.f. = 0.7 5 A
DC 220 V L/R = 1 ms 0.45 A
120 V L/R = 1 ms 0.65 A
48 V L/R = 1 ms 2.5 A
24 V L/R = 1 ms 10 A
circuit breaker position indication contacts (3) : voltage supplied 24 V
(voltage and current supplied by XAS, max. current supplied 10 mA (short-circuit)
CLI or XTU interfaces)
connection cross-sections rigid conductors 1 to 1.5 mm 2
flexible conductors 0.75 to 1.5 mm 2
mechanical characteristics
weight
sheet-metal case (horizontal mounting)
restrictions for use
The XML308/316 operates by injecting lowfrequency
signals (2.5 Hz). It should not be
used for circuits that include variable speed
drives if this equipment continuously
generates a signal with a similar frequency
(≤ 5 Hz).
4.5 kg
disconnectable screw terminal block
degree of protection flush mounting IP 30
other characteristics
types of toroid to be used
A, OA (XS compatible)
interfacing possible with
supervisor
multi-language display
English/French
tamperproof settings
protected by access code or sealable cover
temperature range operating - 5 °C to + 55 °C
storage - 20 °C to + 70 °C
(1) The upper limit is extended to the second value by adding a PHT1000 subassembly.
(2) Failsafe feature: a failsafe relay operates in the event of an accidental interruption of auxiliary power or a fault.
(3) This contact is an auxiliary switch mounted on the circuit breaker and used to indicate its operating status.
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