ELEQ GSA100 Series User manual

1
Operating Instructions
Datum:
13.05.2016
GSA100-GSA500
Revision
01
Type Code: GSA100 ... GSA110 ... GSA 120 ... GSA130... GSA135..
GSA150 ... GSA170 ... GSA190... GSA200 ... GSA235 ...
GSA250 ... GSA300 ... GSA350 ... GSA400 ... GSA500 ...
e.g. GSA200 D 90
GSA
200
D
90
Cast resin current
transformer
Width
size
Inner
diameter
Manufacturer: ELEQ Kerpen GmbH
Karl-Ferdinand-Braun-Straße 1
50170 Kerpen
Germany
Size
mm
A
60
B
90
C
120
D
150
E
200
F
250
G
300

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Contents
1. Safety Guidelines.................................................................................................................................. 2
2. Applications .......................................................................................................................................... 2
3. Failures and critical loading.................................................................................................................. 2
4. Set-ups, Mounting and De-mounting................................................................................................... 3
5. Electrical connections........................................................................................................................... 3
6. Mechanical Mounting........................................................................................................................... 3
7. Maintenance......................................................................................................................................... 4
8. Repair.................................................................................................................................................... 4
9. Applied standards................................................................................................................................. 4
10. CE- Marking by the end customer .................................................................................................... 4
11. General conditions of supply............................................................................................................ 4
12. Appendix........................................................................................................................................... 4
1. Safety Guidelines
-This operating manual contains information and precaution rules for a safe installation
and usage with respect to the mentioned requirements.
-Please read this instruction manual thoroughly!
2. Applications
The current transformers of the type GSA:
-are suitable for indoor usage for ambient air temperature -5°C to +40°C.
-are suitable for storage and transport temperature -25°C to +50°C.
-The current transformers are suitable for cable-cellars, switchgears and distribution
centres, in low-voltage, medium-voltage and high- voltage systems. In medium voltage
and high voltage switchgear, an insulated conductor must be used which suits the rated
insulation levels.
-The mounting instructions must be followed carefully.
3. Failures and critical loading
-If the equipment safety is not guaranteed, the equipment must be switched off and
further usage is prohibited.
The equipment safety may be endangered by:
ovisible damage of housing or terminal lines.
oimproper storage of the transformer. Attention! Do not store or transport
transformer below above mentioned temperature.
otransport damage of the transformer.
oimproper mechanical loadings of the current transformer e.g. high pressure
loadings and impact stresses by loading with weights (stacking) or by fall from
the storage place during transport and installation.
oimproper loadings of the current transformer e.g. overload current loads beyond
the rated current or extended rated current respectively as well as short-circuit
currents exceeding the indicated short-circuit current in maximum value and
duration.
oThe operator has to ensure that the mounted transformer is free from external
magnetic fields. Such magnetic fields can be induced, among others, by return

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conductors or parallel conductors. This may result in serious damage to the
transformer.
ooperation of the current transformer (without burden) in an open-circuit on
the secondary side. Danger to life
4. Set-ups, Mounting and De-mounting
-Any kind of work is only allowed in a voltage-free state of the transformer.
-Only qualified persons are allowed to carry out any kind of work.
-The CTs can be very heavy. For mounting and transport you have to use the lifting eyes
with suitable tools.
-Attention! The current transformers can be very heavy. For mounting and transport you
have to use the appropriate lifting tools. The current transformers must be secured in the
lifting tools. Pendulousness must be avoided. Do not stand below the floating loading.
-Recommendation: in the case the transformer weight exceeds 10 kg appropriate lifting
tools must be used.
-Wear personal protective equipment to avoid bruise and snag.
-The statutory and occupational safety guidelines must be observed.
5. Electrical connections
-The general national installation standards for electrical installations are to be followed
carefully.
-Generally, it has to be guaranteed that no required clearances and creepage distances
are shortened by mounting of the current transformer.
-The connections of secondary leads are only allowed with suitable terminals with the
sufficient diameter corresponding to the secondary current, taking into account the rated
continuous thermal current [Icth] and the rated short-time thermal current [Ith].
-The terminal leads must be adequately stripped. In application of flexible wires it is to be
noted that when stripping, the wires need to be ensured by end ferrules or cable shoes
(M5). The tightening torque for the secondary screws is 2.5 Nm.
-Recommendation to use wire-cross-section:
1 A transformer ≥ 2.5mm²; 5 A transformer ≥ 4 mm².
-The primary conductor or the primary bushings should be mounted central in the
transformer, with the exception of current transformer for earth-fault detection. The
operator has to ensure that the primary conductors (bushings) are sufficient to the
primary current.
-Recommendation: Current transformers with a primary current ≥ 3000A should have
return conductors distance from at least 0.6m.
-Warning 1: Do not operate with the secondary circuit open-circuited. No fuses are
to be used in the secondary circuit. Danger to life!
6. Mechanical Mounting
-Attention: No damage at the housing may occur during installation procedure.
-The transformer can be mounted in any position. In the case the current transformers
are fixed only on a vertical busbar, it can be necessary to support the current
transformers for preventing slipping. Especially when the current transformers weigh
more than 5kg.
-The current transformer has to be connected tightly to the fixture.

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-All screws and bolts must be choose with a suffice length.
-The operator must be fixed all relevant screws and or bolts with a suitable torque, see
figure1.
-The fixture bolts must be protected against loosening (state of the technology) and
corrosion must be avoided.
Figure 1:
Tightening torque for mechanical mounting parts
M4
2,5 Nm
M5
4,5 Nm
M6
8 Nm
M8
20 Nm
M10
40 Nm
M12
65 Nm
7. Maintenance
The transformer is maintenance free but it is recommended:
-A visible check is to be performed at regular intervals with reference to damage of the
housing and electrical connections.
-All electrical contacts including the earth-connections are to be checked in regular
intervals with reference to tightness and corrosion-free state.
-All maintenance procedures are to be performed in a voltage-free state.
8. Repair
-It is forbidden for the end-user to perform any repair of the transformer. In any case the
transformer has to be sent back to the manufacturer.
9. Applied standards
-General standards
-IEC 61869
10. CE- Marking by the end customer
-The user must apply a CE-marking for the complete set-up (generator) in order to prove
the compliance of all components.
11. General conditions of supply
ELEQ delivers exclusive according to ORGALIME S 2012. Should customers have purchase
conditions which are beyond or in contradiction with the general conditions according to
ORGALIME S 2012, the general conditions according to the ORGALIME S 2012 are in force,
unless there is a written declaration of consent of ELEQ for recognition of these conditions.
12. Appendix
ORGALIME S 2012