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Wenzhou Unisun Electric Co., Ltd.

Ring Main Unit, 17.5kv Ring Main Unit, Un-Panel manufacturer / supplier in China, offering Air Insulation 17.5kv Ring Main Unit (IUN-panel), 15kv 20kv Potential Voltage Transformer, 11kv Voltage Transformer and so on.

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Supplier Homepage Product Ring Main Unit Air Insulation 17.5kv Ring Main Unit (IUN-panel)

Air Insulation 17.5kv Ring Main Unit (IUN-panel)

FOB Price: US $1,000 / Set
Min. Order: 1 Set
Min. Order FOB Price
1 Set US $1,000/ Set
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Port: Ningbo, China
Production Capacity: 50000
Payment Terms: L/C, T/T, Western Union, Paypal, Money Gram

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Basic Info
  • Model NO.: iUN-panel-17.5Kv
  • Shell Material: Steel Plate
  • Installation: Fixed
  • Current: AC
  • Transport Package: Wooden
  • Origin: China
  • Certification: VDE, CCC, ISO9001
  • Voltage Level: Medium Voltage
  • Structure: Cabinet
  • Trademark: UNISUN
  • Specification: 12KV
  • HS Code: 85372090
Product Description
Description
The Unisun enjoy more than 16 year experience manufacture SF6 Ring main Unit in china, we import first APG line from Germany to localized air pressure guage production craft, our APG manufacturing including SF6 switch disconnector, embedded pole and etc epoxy resin insulation parts. iUN-panel units are used for the MV section in MV/LV transformer substations in public distribution systems and MV consumer or distribution substations up to 24 kV.
 
 
Feature
The iUN-panel range is made up of modular units containing metal-enclosed SF6 switchgear, using Sulphur hexafluoride (SF6) or vacuum:
  • switch-disconnector;
  • iVD4S vacuum circuit breaker;
  • Vacuum contactor;
  • disconnector.
 
Unit definitions
Below is the list of iUN-panel range units used in MV/LV transformer substations and industrial distribution substations:
  • IM, IMC, IMB switch;
  • PM fused switch;
  • QM, QMC, QMB fuse-switch combination;
  • CRM contactor and contactor with fuses;
  • DM1-A, DM1-D, DM1-S single-isolationSF6 type circuit breaker;
  • DMV-A, DMV-D, DMV-S single-isolation vacuum type circuit breaker;
  • DM1-W, DM1-Z withdraw able single-isolationSF6 type circuit breaker;
  • DM2 double-isolation SF6 type circuit breaker;
  • CM, CM2 voltage transformers;
  • GBC-A, GBC-B current and/or voltage measurements;
Standards
iUN-panel units meet all the following recommendations, standards and specifications:
  • IEC:60694:
  • IEC62271-200
  • IEC60265
  • IEC60420
  • IEC60255
  • IEC62271-100
  • IEC62271-102
 
Designation
iUN-panel units are identified by a code including:
  • an indication of the function, i.e. the electrical diagram code: IM, QM, DM1, CM, DM2, etc.
  • the rated current: 400 - 630 - 1250 A;
  • the rated voltage: 7.2 - 12 - 17.5 - 24 kV;
  • the maximum short-time withstand current values: 12.5 - 16 - 20 - 25 kA.1 s;
  • the color is of RAL 9002 type (frosted satin white).
Example for a unit designated: IM 400 - 24 - 12.5
  • IM indicates an "incoming" or "outgoing" unit;
  • 400 indicates the rated current is 400 A;
  • 24 indicates the rated voltage is 24 kV;
  • 12.5 indicates the short-time withstand current is 12.5 kA.1 s.
 
The hereunder values are for working temperatures from -5°C up to +40°C and for a setting up at an altitude below 1000 m.
Internal arc withstand:
  • standard:12.5 kA. 0.7 s;
  • enhanced:16 kA. 1 s.
Protection index:
  • units: IP2XC (IP3X consult us);
  • between compartments: IP2x.
Electro-magnetic compatibility:
  • relays: 4 kV withstand capacity, as per recommendation IEC 60801.4;
  • compartments:
  • electrical field:
Temperatures:
The cubicles must be stored in a dry area freefrom dust and with limited temperature variations.
  • for stocking: from -40°C to +70°C,
  • for working: from -5°C to +40°C,
  • other temperatures, consult us.
 
Main characteristics
Rated voltage (kV)17.5
Insulation level 
50 Hz, 1 mnInsulation38
(kV rms)Isolation45
1.2/50μsInsulation95
(kV peak)Isolation110
Breaking capacity
Transformer off load (A)16
Cables off load (A)31.5
Short-time withstand current 25630 - 1250 A
(kA.1 s)20630 - 1250 A
 16630 - 1250 A
 12.5400 - 630 - 1250 A
The making capacity is equal to 2.5 times the short-time withstand current.
 
Maximum breaking capacity
Rated voltage (kV)17.5
Units
IM, IMC, IMB,  630 A - 800 A*
NSM-cables, NSM-busbars
PM, QM, QMC, QMB20 kA
CRM 
CRM with fuses 
SF6 circuit breaker range:
DM1-A, DM1-D, DM1-W, DM1-Z, DM1-S, DM220 kA
Vacuum circuit breaker range:
DMV-A, DMV-D, DMV-S20 kA


OUR COMPANY
Air Insulation 17.5kv Ring Main Unit (IUN-panel)


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