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current transformer and voltage transformer
current transformer and voltage transformer

GFJLSZV-35W33KV OUTDOOR COMBINED CURRENT TRANSFORMER AND VOLTAGE TRANSFORMER

This model GFJLSZV-35W outdoor combined current transformer and voltage transformer is used in 36KV, 35KV, 33KV, 27KV, 25KV power system, for measuring and protection. It has been used in outdoor pole mounted and transmission line. This product has the characteristics of high efficiency and large capacity, and can be customized according to customer requirements. This model combined CT & VT is suite for 33KV 3P3W or 3P4W power system.

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DESCRIPTIONFor insulation and protection, the assembly is cast in hydrophobic cycloaliphatic epoxy (HCEP) using automatic vacuum pressure. The HCEP material offers superior arc track, ozone, and ultraviolet-resistive properties while maintaining physical strength. Primary and secondary use pure electrolytic copper, both winding and core have high voltage shielding processing. The hydrophobic surface properties of HCEP ensure highly reliable performance in wet, humid, or polluted environments.
It can be used for less than 36KV distribution line, coal mine, power plant, rail way, factories.. . The 33kV combined CT & VT are strictly in conformity with IEC60044, IEC 61869, ANSI/IEEE C57.13, NBR6855 etc. It has been used many substations and wind power plants.

APPLICATION

■ Rail way;

■ Coal Mine;

■ Power plant;

■ Power Meter;

■ Energy meter;

■ Power station;

■ Oil, gas company;

■ Distribution system;

■ Measuring instrument;

■ Electric Power Bureau;

■ Primary metering cabinets;

■ MV Power Quality Analyzer;

■ Substation metering and relaying;

■ Industrial and mining enterprises;

FEATURES

■ Weight: 500KG;

■ Using life: 30 years;

■ Rated voltages up to 36 kV;

■ Secondary current output 5A or 1A;

■ Tin plated copper primary terminals;

■ Multi windings post type outdoor design;

■ 36KV, 35KV, 33KV, 27KV, 25KV Outdoor;

■ Reasonable structure and robust construction;

■ Surface creepage distance more than 1300mm;

■ Material:Epoxy(HCEP) + outdoor silicone cover;

■ Rated basic insulation levels (BIL) up to 200 kV;

■ Standard & Special High Accuracy metering classes;

■ Voltage transformer accuracy class :0.2 0.5 1 3 3P 6P;

■ Rated voltage primary (KV): 35/√3, 35, 33/√3, 33, 27/√3, 27;

■ Convenient installation, suitable for installation in any location;

■ Secondary voltage: (KV) 0.1√3, 0.1, 0.11√3, 0.11, 0.12√3, 0.12;

■ IEC60044, IEC 61869, GB/T 20840 & ANSI/IEEE C57.13 Standards;

■ Current transformer class: 0.2S 0.2, 0.5S, 0.5, 1, 5P20, 5P10, 10P20, 10P15;

PARAMETERS

Current Transformers parameters 13.8KV 33KV
Nominal primary current 20 A, 100 A 20 A, 100 A
Nominal secondary current 5A 5A
Class 0.2S 0.2S
Burden 10VA 10VA
Thermal current (Ith) Ith ≥ 60 x In Ith ≥ 80 x In
Dynamic Current (IDyn) IDyn ≥ 150 x In IDyn ≥ 200 x In
Maximum nominal thermal factor 1 - 1.5 1 - 1.2
Impulse Test Voltage ≥ 95 kV ≥ 110 kV
Voltage Transformers parameters 13.8kV 33kv
Nominal primary voltage 13,800 / √3 V 33000 / √3 V
Nominal secondary voltage 120 / √3 V 110 / √3 V
Ratio 115:1 300:1
Class 0.2 /IEC 61869-3 0.2 /IEC 61869-3
Burden ≤ 15 VA ≤ 25 VA
Continuous Surge Factor 1.1 - 1.5 1.1 - 1.5
Impulse Test Voltage ≥ 110 kV 200 kV
Wiring Current signals:
*(S1-I1)Yellow/White stripe
*(S2-I1)Yellow/Black stripe
*(S1-I2),Blue/White stripe
*(S2-I2)Blue/Black stripe
*(S1-I3)Red/White stripe
*(S2 - I3) Red/ Black stripe
Insulation Level 13.4kV 34.5KV
Degree of protection - IP IP65 IP65
Insulation Classification 17.5 kV / 42 kV / 110 kV 40.5 kV / 95 kV / 200 kV
Frequency 60 Hz +/- 5%
Internal elements 3 elements: 3 pcs of CT and 3 pcs of PT
Surface creepage distance (mm) 1300
Insulating medium External insulation in cycloaliphatic resin and internal insulation in epoxy resin.
Standards ANSI Standard C-57.13 or IEC 61869-1 and IEC 61869-2 for current transformers.
ANSI Standard C-57.13 or IEC 61869-1 and IEC 61869-3 for potential transformers.
ANSI C-62.11 or IEC 60099-4 for DPS (Lightning Rod).
ASTM A153 standard for fasteners and support.
Insulation Level
Operate Temperature -25 to +70 °C
Storage Temperature -40 to +85 °C
Warranty Three years warranty
Surge Arresters 6 polymeric DPS (Surge Arrester) 10 kA / 12 kV 6 polymeric DPS (Surge Arrester) 10 kA / 30 kV

PARAMETERS OF CURRENT PART

Rated transformation radio(I1n/5) Ith/ls (KA r.m.s.) Idyn (KA peak) Accuracy class and rated secondary output(VA)
Double transformaion ratio Single transformaion ratio
10-15-20/5
 10/5
 2 5 0.2(S)---10
0.2---15
0.5S---10
0.5---30
15-20-30/5
 15/5
 2.7 6.75
20-30-40/5
 20/5, 25/5
 4 10
30-40-50/5
 30/5
 6.3 15.7
40-50-75/5
 40/5
 8.1 20.2
50-75-100/5
 50/5
 10.8 27
75-100-150/5
 75/5
 16.2 40.5
100-150-200/5
 100/5
 21.6 51.5
150-200-300/5
 150/5
 37.8 94.5
200-300-400/5
 200/5, 250/5
300-400-500/5
 300/5
 54 110
400-500-600/5
 400/5
500-600-800/5
 500/5
 68.4 136
600-800-1000/5
 600/5
800-1000-1200/5
 750/5
 95.5 190
800/5
1000/5
  1200/5
 16.2 200

PARAMETERS OF VOLTAGE PART

Rated voltage radio(V)Accuracy class combination and
rated secondary output(VA)		 Limited output(VA) Rated insulation level(KV) Surface creepage distance(mm) Weight(KG)
35000/√3 100/√3 0.2---3×30
0.5---3×90
1---3×180
3---3×500
 3×600 40.5/95/200
 1300 500
35000/√3/100/√3 /100/√3 0.2/0.2---3×15/3×15
0.2/0.5---3×15/3×20
0.5/0.5---3×45/3×45
 3×300/3×300
33000/√3/100/√3 0.2---3×30
0.5---3×90
1---3×180
3---3×500		 3×600 40.5/95/200 1300 500
33000/√3/100/√3 /100/√3 0.2/0.2---3×15/3×15
0.2/0.5---3×15/3×20
0.5/0.5---3×45/3×45		 3×300/3×300

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