Product Description
Applicable Standards
The Quality Management System shall be ISO
***1 Certified. The equipment shall comply with the latest revision
of the following standards:
ANSI/IEEE
C*7.*0IEEE
Standard Requirements for Overhead, Pad-Mounted, Dry-Vault, and
Submersible Automatic Circuit Reclosers and Fault Interrupters for
AC Systems.
IEC
********1High-voltage switchgear and controlgear Part
**1: Automatic circuit reclosers and fault interrupters for
alternating current systems up to *8 kV.
ISO ***1Hot dip
galvanized coatings on fabricated iron and steel articles-
Specifications and test methods.
IEC
********1Classification of environmental conditions
Part **1: Environmental conditions appearing in nature
Temperature and humidity
IEC ****9
Degrees
of protection provided by enclosures (IP Code)
IEC
******3Selection
and dimensioning of high-voltage insulators intended for use in
polluted conditions - Part 3: Polymer insulators for a.c.
systems.
IEC ****9Composite
insulators for a.c. overhead lines with a nominal voltage greater
than ***0 V Definitions, test methods and acceptance
criteria.
IEC
**********4Transmission Protocols, Network access for
IEC **********1 using standard transport
profiles.
IEC ****0
Sampling
plans and procedures for inspection by
attributes
Ratings Voltage
Rating |
CHZ***5 |
CHZ***7 |
CHZ***8 |
Maximum Design Voltage
(kV) |
*5.5 |
*7.0 |
*8.0 |
Nominal Operating Voltage
(kV) |
*4.4 |
*4.9 |
*4.5 |
Basic Insulation Level
(kV) |
**0 |
**5 |
**0 |
Current
Rating |
CHZ***5 |
CHZ***7 |
CHZ***8 |
Continuous Current (A) |
**0/**0 |
**0/**0 |
**0/**0 |
Symmetric Interrupting Current
(kA) |
*2,5 - *5 |
*2,5 - *5 |
*2,5 - *5 |
Overload Capability (A) |
|
Cable Charging Current
(A) |
*0 |
*5 |
*0 |
Three-Second Current Symmetric
(kA) |
*2,5 - *5 |
*2,5 - *5 |
*2,5 - *5 |
Mechanical Lifespan
Rating |
CHZ***5 |
CHZ***7 |
CHZ***8 |
Minimum Operations |
*0,**0 |
*0,**0 |
*0,**0 |
Frequency
Rating |
CHZ***5 |
CHZ***7 |
CHZ***8 |
Rated Frequency (Hz) |
*0/*0 |
*0/*0 |
*0/*0 |
Creepage
Rating |
CHZ***5 |
CHZ***7 |
CHZ*- *8 |
Creepage Distances |
mm (in) |
mm (in) |
mm (in) |
Terminal to Terminal |
***2 (*1.5) |
***2 (*1.5) |
***2 (*1.5) |
Lower Terminal to Ground |
**3 (*6.5) |
**0 (*0.0) |
**0 (*7.5) |
MAIN BODY CONSTRUCTION
The automatic reclosers are
constructed with vacuum interrupters with magnetic actuation
mechanism, with solid resin insulation.
Coupled three-phase
operation
The reclosers will be bi-directional
therefore suitable for forward and reverse current
flow.
Materials
All materials used in the
manufacture of reclosers shall be highly resistant to the corrosion
of saline atmospheres.
Surface
treatment
The ferrous parts shall be of
stainless steel for enclosures and cabinets. Corrosion treatment by
means of hot dip galvanizing in accordance with ISO ***1 is only
permitted for support structures and fastening
components.
Insulators
The insulators will be of solid
dielectric insulation with the cycloaliphatic epoxy resin system or
silicone rubber type HTV, Porcelain or EPDM insulators are not
allowed.
The creepage distance shall be at
least *1 mm/kV. Insulators shall withstand a bending motion of **0
Nm and withstand a suitable torque for the fastening of the
conductors.
The insulation material must have a
hydrophobic behavior, highly resistant to ozone, oxygen, moisture,
pollution and ultraviolet (UV) radiation resistant (according to
IEC ****9). No UV coatings or covers are
accepted.
Position
indicators
Position indicators shall be
resistant to aggressive weather conditions, possibly by the
adoption of transparent protection, and shall be of such dimensions
as to be clearly visible from the base of the pole and in any case
at a distance of 8 m.
CONTROLLER The components of control,
protection and remote control must be located in a box treated
against corrosion.
The box will be designed to protect
electronic circuits from aggressive weather
conditions.
The cabinet will be supplied with
all the appropriate connectors to ensure connection with the
recloser.
The cabinet door must have a secure
locking system with an operating handle that allows locking. It
must provide a lock with a master key.
General
characteristics
The cabinet shall be IP *5
class;
Access profiling to control should
prevent unauthorized persons from logging in. The access to the
configuration of the control must be protected through a minimum of
two access keys, one of basic operator and one of engineering or
configuration.
A voltage suppressor protection
shall be provided for the AC voltage auxiliary on the low
voltage side of the potential transformer or auxiliary voltage,
suitably sized to protect the control against atmospheric or system
surges.
Power
Supply
The rectifier / back up battery must
have sufficient capacity to supply all the control equipment as
well as the communications equipment. The voltage is in all
cases ******0 VAC, *0/*0 Hz coming from an auxiliary transformer,
or directly from the LV network. All auxiliary parts will be
supplied at *4 V DC.
The rectifier shall have the
necessary alarms to monitor its correct operation, and the battery
shall have sufficient capacity to maintain the operation of the
system for *4 hours or to perform at least four cycles of opening /
closing operations. The battery shall be included in the
delivery.
The battery charger must have some
visual indication that informs that the battery is discharged, or
has a fault requiring maintenance or change.
Local
control and protection functions
The recloser control will have the
following protection functions:
- Phase overcurrent
protection (****1),
- Residual overcurrent
protection (*0N**1N),
- Directional overcurrent
protection (*7),
- Residual directional overcurrent
protection (*7N),
- Automatic multiple reclosing
function (*9)
It must have at least two
alternative profiles for the different protection functions
including the possibility to program protection curves. Typically
one of the profiles will be used in case the power flows from the
Source side to the Load side, and the other to the opposite side.
The change from one to another setting will be made automatically
by the equipment upon detecting change in the direction of power
flow or by means of pushs or local
switch.
Other
local and remote functions
Activation / deactivation Hot Line
Tag mode with led status indicator (switched on if the function is
active): Prevents switching operation by remote control and only
allows a first protection trip with programmable fast curve,
inhibiting reclosing, both automatic, from panel, by connection to
computer and even from SCADA. It can only be deactivated in the
same way as activated (for example, if activated locally, it can
only be deactivated locally and not by SCADA or computer). The
indicator light will always remain on while the function is
active.
Local indication
of:
- Position of
the switch
- Automatic
reclosing status
- Protection on /
off status
- Status on / off Hot
Line Tag
- General Alarms
Ability to store operation events.
The events to register will be at least:
- Oscillographic record of events and
stored in Comtrade format
- Opening or
closing operation
Country: |
China |
Model No: |
CHZ4
|
FOB Price: |
8000 ~ 1000 / Box (Negotiable)
Get Latest Price
|
Place of Origin: |
CHINA |
Price for Minimum Order: |
8000 per Box |
Minimum Order Quantity: |
1 Box |
Packaging Detail: |
WOODEN |
Delivery Time: |
45DAYS AFTER ORDER |
Supplying Ability: |
10000 Box per Year |
Payment Type: |
D/P, D/A, L/C, T/T |
Product Group : |
33KV-245KV Power Substation
|