Solid seal pole column EEP-12/2000-40
Model No: EEP-12/2000-40
Solid seal pole column has the following advantages
1.the traditional packaged very column, compared to solid seal pole column part number a large number of reducing, conductor lap surface by six group reduced to 3 groups, connecting bolt by eight reduced to 1 ~ 3, (see chart 7) simple structure greatly improved the reliability of the circuit breaker
2.Due to the vacuum arc extinguish chamber was embedded into solid material, so don’t need to do any further processing, solid seal pole column can achieve a high dielectric strength; Vacuum arcing chamber was embedded into solid materials, extremely column external environment on vacuum arcing chamber’s influence was reduced to the least
Parameters of solid seal pole column
MAIN TECHNICAL SPECIFICATION UNIT SPECIFICATION 2000 Rated voltage kV 12 Rated current A 2000 Rated frequency Hz 50/60 Short-duration（1min） power frequency withstand voltage kV 48 Lightning impulse withstand voltage kV 95 Rated short-circuit breaking current kA 40 Rated peak withstand current kA 100 Rated short-circuit making current kA 100 Rated short-time withstand current kA 40 Rated duration of short-circuit S 4 Rated breaking current of single capacitor bank A 400 Rated breaking current of back to back capacitor bank A 400 Rated operating sequence o-0.3S-co180S-co Breaking operations of rated short circuit breaking current Time 30 Mechanical endurance Time 20000 Contact self-close force N 120±50 Force required to hold contacts open at full stroke N 200±50 Circuit resistance at lower limit of rated contact force mΩ ≤ 20 Contact limit erosion mm 3 Gas pressure inside vacuum interrupter Pa ≤ 1X10-3 Partial discharge Pc ≤ 5 Weight of moving parts Kg Weight of vacuum interrupter embedded poles Kg
Mechanical data required for the matched vacuum switchgear
MAIN TECHNICAL SPECIFICATION UNIT SPECIFICATION 2000 Clearance between open contacts mm 10±1 Average opening speed m/s 1.05±0.15 Average closing speed m/s 0.7±0.2 Rated contact pressure N 5000±200 Contact bouncing duration at closing operation ms ≤ 3 Out of simultaneity of contact closing and opening ms ≤ 2 Bouncing back amplitude of opening contact mm ≤ 3
Solid seal pole column EEP-12/2000-40
Solid seal pole column,or called vacuum interrupters with epoxy resin,is made by casting vacuum interrupters,main circuit conduct and mounting parts with epoxy into an integral part. The vacuum interrupters, however,should be enveloped well with a slight fold of silicon rubber jacket before that process.
Information for solid seal pole column
From the development of insulations on breakers,it can be divided into three generations:air, composite and solid insulation and so-called solid insulation means solid seal pole column,which might represent the great advancement of insulation on vacuum breakers.Since the epoxy can be used to replace the insulating and mechanical supports,the breakers therefore become compact and simple and are able to service under humid and dusty conditions.When the external insulations of miniature chambers in air condition fail to fulfill the requests of specifications,solid seal pole column are therefore introduced and now become one of the most applicable ways in the field of medium voltage breakers either at home or abroad.
We are specialty on embedded pole medium voltage and high voltage components, such as 12KV, 24 KV, 36KV and 40.5KV switchgear bushing, contactor box, insulators, transducers. 630A, 1250A, 2500A, 3150A and 4000A contactor box, club contact, fix contact, arm contact and jaw contact. 630A and 1250A VS1 circuit breaker. 630A and 1250A ZN85-40.5 circuit breaker. 12KV and 24KV earth switch. KYN28A-12 and KYN61 high voltage switchgear components.
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