Tellhow (Shenzhen) Electric Technologies Co., Ltd.
Chinese professional electrical equipments manufacturer

Terminal Distribution Equipments

XBZ1/XBJ1-12 Pre-installed Substation

By admin • Oct 11th, 2008 • Category: Terminal Distribution Equipments
1. General

The product is made up of optimally combined high-voltage units, transformer, lower-voltage units, and intelligent system. It is an intelligent power supplying/distributing assembly. It can be used as the power distribution equipment of the civic buildings, residential districts, public utilities, manufactories, mines, roads, quays, oil fields and temporary working fields.

Product features:

  • Low price, good-looking appearance, high ability to provide the auxiliary items.
  • Compact structure, small size. It can save space and installing areas, and can be used in the
  • load centers.
  • It is provided with convenient installation, high safety and reliability.
  • Low cost, quickly take effect.
  • High mechanical bending-resistance ability, high impact-resistance, insolation-resistance,
  • radiation-proof, high heat insulating.
  • High anti-freezing property, high anti-cracking ability, high corrosion-proof capacity.
  • High moisture-resistance ability and flame-resistance ability, water condensation-proof.
2. Normal Service Condition
  • Ambient temperature: -15 ℃ ~ + 40 ℃
  • Altitude: ≤ 2000m
  • Relative humidity: daily average relative humidity ≤ 95%; monthly average relative humidity ≤ 90%
  • Free from fire, explosion, heavy pollution, chemical corrosion and severe vibration.
  • The earthquake intensity ≤ 8 degree
  • The degrees of inclination of installation ≤3 degrees
  • If the service condition differs from the above , the user should consult it with manufacturer.
3. Configuration
Apparatus Type Manufacturer
HV switchgear Gas-insulated switchgear RAG-FR\FFR R&A
RM6-IQ\IQI Schneider
SafeRing-CF/CCF ABB
RMU XGN15-12 TELLHOW
Transformer Day transformer SC(G)B-10 ABB/CEEG
Oil transformer S9-M HAINAN WEITE
LV switchgear / MNS ABB
/ SIVACON -8PT SIEMENS
/ GGD TELLHOW
Enclosure Metal material / TELLHOW
Nonmetal material / WEITELIE
4. Structure
  1. Low Voltage Room
  2. Power Transformer Room
  3. High Voltage Room
  4. Gating Light
  5. Busbar
  6. Transformer
  7. Protective screening
  8. HV Cable
  9. HV Switchgear
  10. LV Switchgear
  11. Fans
  12. Channel
5. Technical Parameters
Item Transformer HV LV Note
Rated voltage - 12kV 0.4kV
Transformer rated capacity 50~1600kVA - -
Rated current - 400A , 630A 100A ~ 2500A
Rated frequency 50Hz(60Hz) 50Hz(60Hz) 50Hz(60Hz)
Rated short-time withstand current - 16KA/2(4)S
20KA/2(4)S
250-315kVA:15kA
400-800kVA:30kA
Rated peak withstand current - 40KA,50KA 250-315kVA:15kA
400-800kVA:30kA
Insulation level(power frequency) 35kV 42kV 2.5kV
Rated noise level Oil transformer≤50dbDry transformer≤55db - -
Reactive power compensation - - - 30% of transformer capacity
Standard IEC1330、GB/T17467、DL/T537、GB1094
Dimension According to the requirement of user


YB-12 Pre-installed Substation

By admin • Oct 11th, 2008 • Category: Terminal Distribution Equipments
1. General

YB-12/0.4 pre-installed substation is used as assembly device for power transformation, power distribution, compensation, control and protect in power distribution system rated 10kV. Besides transformer, there’s 4-position (or 2- position) load switch, protection fuse and plug-type fuse on HV side, there is control and distribution device, compensation device and meters on the LV side. The insulation and arc extinction medium are transformer oil. It can be used in the civic buildings, virescence zone, park, station, quays, hotel, building site, airport and so on.

Product features:

  • Totally airproof, high insulation , small size, compact structure, high safety.
  • Used in ring main and terminal power supply, the cable connector can frequently plug in and out under 200A .
  • Use the overall protection with double sense fuse or stand-by fuse.
  • Corrosion-proof design., special spray-paint.
  • Low noise, high lightning protection capability.
  • Intelligent undervoltage controller installed on LV side, to ensure the safe operation of power supply.
  • Low loss, high overload capability.
  • Equipped with phase-loss protection device.
2. Normal Service Condition
  • Ambient temperature: -25 ℃ ~ + 40 ℃
  • Altitude: ≤ 2000m
  • Relative humidity: daily average relative humidity ≤ 95%; monthly average relative humidity ≤ 90%
  • Free from fire, explosion, heavy pollution, chemical corrosion and severe vibration.
  • The earthquake intensity ≤ 8 degree
  • The degrees of inclination of installation ≤3 degrees
  • If the service condition differs from the above , the user should consult it with manufacturer.
3. Structure
4. Technical Parameters
No. Item Unit Parameter
1 Rated voltage Original side kV 12
Auxiliary side 0.4
2 Rated capacity kVA 100,125,160,200,250,315,400,500,630,800
3 No-load voltage regulation - ±2╳2.5%
4 Connection method - D,yn11
5 Rated insulation level Lightning impulse withstand voltage(full wave, peak) kV 75
Power frequency withstand voltage 42
6 Power frequency withstand voltage (phase to phase, phase to ground) Main circuit 2.5
Control and measure circuit kV 2.0
7 Noise class dB ≤45
8 Protection class - IP34
9 Cooling method - ON
Load Break Switch Parameter
No. Item Unit Load switch(4-position) Load switch(2-position)
1 Lightning impulse withstand voltage(peak, full wave) Phase to ground, phase to phase kV 75 75
Breaking gap 85 85
2 Power frequency withstand voltage( 1 min) Phase to ground, phase to phase kV 42 42
Breaking gap kV 48 48
3 Rated current A 630 100
4 Rated short circuit making current(peak) kA 31.5 16
5 Rated short time withstand current kA 12.5 6.3
6 Rated peak withstand current S 2 2
7 Rated short time withstand current kA 31.5 16


XBZ-12 Pre-installed Substation

By admin • Oct 11th, 2008 • Category: Terminal Distribution Equipments
1. General

This products is a new-generation semi-embedded pre-fabricated substation, that is to say, part of the substation is embedded under the ground. It has completely realized the following features: integration of high-voltage primary and secondary system; modular assembling structure; making the construction work as factory, and easy construction. The product is suitable to be used in the streets of the downtown area and the residential quarters, it can greatly save the installing areas Furthermore, it can solve the problem of area occupying and sheltering from vision. It is lower and smaller.

Product features:

  • Low height, not block sight.
  • Compact structure, small size, low price.
  • Good appearance, high assembly capability.;
  • Short construction period, low investment.
  • Convenient for installation.
  • Safe and reliable
  • High mechanical bending-resistance ability, high impact-resistance, insolation -resistance ,
  • radiation-proof, high heat isolation.
  • Design humanization
2. Normal Service Condition
  • Ambient temperature: -15 ℃ ~ + 40 ℃
  • Altitude: ≤ 2000m
  • Relative humidity: daily average relative humidity ≤ 95%; monthly average relative humidity ≤ 90%
  • Free from fire, explosion, heavy pollution, chemical corrosion and severe vibration.
  • The earthquake intensity ≤ 8 degree
  • The degrees of inclination of installation ≤3 degrees
  • If the service condition differs from the above , the user should consult it with manufacturer.
3. Configuration
Apparatus Type Manufacturer
HV switchgear Gas-insulated switchgear RAG-FR\FFR R&A
RM6-IQ\IQI Schneider
SafeRing-CF/CCF ABB
RMU XGN15-12 TELLHOW
Transformer Day transformer SC(G)B-10 ABB/CEEG
Oil transformer S9-M HAINAN WEITE
LV switchgear / MNS ABB
/ SIVACON -8PT SIEMENS
/ GGD TELLHOW
enclosure Metal material / TELLHOW
Nonmetal material / WEITELIE
4. Structure
5. Technical Parameters
Item Unit HV units Transformer LV units
Rated voltage kV 12 10/0.4 0.4
Rated isolation level 1min power frequency withstand voltage 42 35 2.5
Lightning impulse withstand voltage( full wave) 75
Main busbar Rated current A 630 28.8/721 100~1200
Rated short time withstand current kA 20/3S 15~65/3S
Rated peak withstand current 50 65
Dimension(depth*width*height) Single
(circuit)
mm 2300×2000×1640
Protection class Enclosure
IP4X
Rated capacity 500kVA
Noise level Oil transformer≤50db
Dry transformer≤65db


XGW15-12 Switching Station

By admin • Oct 11th, 2008 • Category: Terminal Distribution Equipments
1. General

In large-scale intelligent switching station, the 12 kV switchgears, 12 kV power supplies, PTs, FTUs, Feeding RTUs, geographic information systems(GIS), facilities management (FM), communication control terminals (CCU), 12 kV measurement and automatic meter reading devices, and others are installed in a movable, sealed and moisture-proof enclosure made of stainless steel. Therefore, the integration of the primary/secondary system of power distribution network and the modularization of the assembling can be realized.

Product features:

  • The cabinet has provided with high resistance to corrosion.
  • Compact structure, requiring small installing areas, convenient installation, high safety and reliability.
  • High resistance to bending, high resistance to shock, high resistance to insolation, high resistance to radiation, high heat insulating capability.
  • High anti-freezing property, high anti-cracking ability, high corrosion-proof capacity.
  • High moisture-resistance ability and flame-resistance ability, Water condensation-proof.
  • The wiring method of the product is flexible, the distributed or centralized FTU(DTU) can be used.
  • The product can be used in outdoor condition, and is provided with special locking structure for the doors, perfect theft-proof and rainproof functions.
  • The product is provided with comprehensive and high-efficiency function, as well as modular design. The functions can be selected flexibly in accordance with the actual requirements.
  • The automatic system can be independent from the communication system. When the fault appears, it can separate the fault and recover power supply in high speed.
2. Normal Service Condition
  • Ambient temperature: -40 ℃ ~ + 40 ℃
  • Altitude: ≤ 2000m
  • Relative humidity: daily average relative humidity ≤ 95%
  • monthly average relative humidity ≤ 90%
  • Free from fire, explosion, heavy pollution, chemical corrosion and severe vibration.
  • The earthquake intensity ≤ 8 degree
  • The degrees of inclination of installation ≤5 degrees
  • If the service condition differs from the above , the user should consult it with manufacturer.
3. Configuration
Apparatus Type Manufacturer
Middle positioned removable vacuum contactor-fuse combination LHJCZR1-7.2 Wuxi Lanhong
V7、3TL6 ABB、SIMENSE
Current transformers IEC ABB
LZZBJ DALIAN NO.1
LZZBJ DALIAN NO.2
Voltage transformers IEC ABB
JDZ DALIAN NO.1
JDZ DALIAN NO.2
Earthing switches EK6 ABB
JN15 YUFENG
Cabinet body KYN 28A -12 TELLHOW
4. Structure
  1. Indoor HV switchgear
  2. Cabinet
  3. LV controlgear
  4. Bus bridge
  5. Air condition
  6. Switchboard
5. Technical Parameters
No. Name Unit Parameter
1 Rated voltage kV 12
2 Rated current A 1250
3 Rated frequency Hz 50
4 Rated cable charging breaking current A 10
5 Rated short-time making current kA 63
6 Rated short-time withstand current duration( main circuit) S 4
7 Rated short time withstand current kA 31.5
8 Rated peak withstand current kA 63
9 Rated short time power frequency withstand voltage kV 42
10 Rated lightning impulse withstand kV 75
11 Loop resistance μΩ ≤100