on-load disconnector switch

1. On Load Disconnector switch
11/24/33kV
IEC/ANSI/IEEE/DIN
Product brochure
2009/4
Zhejiang Farady Electric Co., Ltd.
ISO9001&ISO14001 certificated enterprise
Committed to be better power!

2. ++++General
FTS type Outdoor on load break switch (switch disconnector) contained in this list are
destined to switch stub lines and ring main lines or transformers( It can be equipped with
MV HRC fuse links as short circuit protection function) or for switching under on load
conditions.
FTS type switch comply with IEC/IEEE and DVE-recommendation standards. Especially
comply with DIN VDE 0670 part 3 and IEC publication IEC-60265, IEC-129.
++++Service environment
 Air temperature: Maximum temperature: +75℃; Minimum temperature:-45℃
 Humidity: Monthly average humidity 95%; Daily average humidity 90% .
 Altitude above sea level: Maximum installation altitude: 2500m
 Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.
 No frequent violent shake
++++ Features and benefits
 Compact design
All steel FTS either in stainless steel or hot-dip galvanized
 Solid and stable base frame
 Main contact with icing protection
 Insulators available in porcelain or alternatively in silicone
 Minimal sag for the line-connection thanks to the two fixed terminals
 Completely maintenance antirust AL alloy -Arc chamber
 Switching-off procedure without external arc
 Short circuit making capacity under specific conditions possible
 Fixing on the supporting structure either by clamping (free setting) or screwing
(holes in the base frame)
 Easy on-site installation and setting
 High reliability: up to 1’000 cycles (depending on the making current)
 All conducting FTS either silver, nickel or tin-plated
 Practically maintenance-free

3. ++++ Main technical specifications
No. Item Unit Data
1 Rated voltage kV 11 24 33
2 Rated frequency Hz 50/60
3 Rated current A 200/400/630
4 Rated short circuit withstand current (1S) kA 20
5 Rated peak withstand current (1S) kA 50
6 Rated making current kA 31.5-50
7 Rated insulation
level(HV)
lightning impulse
kV
75/85 125/145170/195
Power frequency withstand 45 55/75 75/100
8
Rated short circuit breaking capacity cos. Φ（0.7）
Without maintenance of contacts
------------------------------
- for active circuits
20 breakings
A
630 630 400
30 breakings 400 400 300
40 breakings 300 300 250
50 breakings 250 250 170
75 breakings 170 170 160
120 breakings 110 110 110
200 breakings 65 65 65
280 breakings 50 50 50
Sheet 2
No. Item Unit Data
1 Rated voltage kV 11 24 33
9 For ring circuits breaking capacity A 630 400 250
10 Rated breaking capacity of transformer A 50
11 Rated breaking capacity of cable charging A 11
12 Rated breaking capacity of earthing fault A 56
Note:
The FTS type on load break switch (Switch disconnector) is equipped with stored energy
released by fuse strike pins. The stored energy mechanism for the opening operation is
released by fuse strike pins. The trip actuator is mounted on top of the fuse contact clip.
The DIN type fuse is held in spring type contacts, secured by a tail lever. All the
components are made of stainless steel, to prevent corrosion, have long live, and in the
reset position. The trip lever is parked in an over-centre position.
++++ Drawing and dimension
kV A B C D E F G H I J L M Y
12 400 1150 300 150 1150 1010 480 450 1060 500 450 750 1250
24 450 1220 325 150 1150 1110 630 450 1160 543 450 775 1350
36 700 1400 400 170 1400 1610 725 600 1660 560 550 850 1650

4.
FTS type without fuse
FTS type with fuse
++++Ordering Instructions
****Ordering instructions:
1. Belowing terms should be marked while ordering:
Model number, product name and quantity.
Model of operating mechanism ( A,K ).
Provide the rated voltage specification if motorization operating is required.
For load break switch + fuse combination, fuse model and specification is required.
Other special requirements.
2. Documents with product from manufacturer:
Certificate of qualification.
Testing report for products.
Packing list.
Other technical documents.

5.
++++Before order pls clear of your requirement.
Copyright 2014 Farady Electric
Zhejiang Farady Electric Co.,Ltd
TEL:0086-577-61722510/61777258
Fax:0086-577-61777257
Http://www.farady.cn
Email:info@farady.cn
Add:N.O.888,Wanliqiao Rd,Xiangyang Industrial
Zone,Yueqing,Zhejiang,P.R.China, 325604